You searched for subject:( Orthosis).
Showing records 1 – 30 of
149 total matches.
◁ [1] [2] [3] [4] [5] ▶
University of Manitoba
1.
Semenko, Brenda.
Effectiveness of a dynamic wrist-hand orthosis in early outpatient rehabilitation of the upper extremity post stroke: a multiple single subject design evaluation.
Degree: College of Rehabilitation Sciences, 2017, University of Manitoba
URL: http://hdl.handle.net/1993/32760 
► Problem: Although early intensive therapy is important for those with upper extremity deficits after stroke, use of the SaeboFlex orthosis to assist with recovery after…
(more)
▼ Problem: Although early intensive therapy is important for those with upper extremity deficits after stroke, use of the SaeboFlex
orthosis to assist with recovery after discharge from inpatient rehabilitation has not been studied. Methods: This mixed methods study evaluated the effectiveness of the SaeboFlex
orthosis in improving upper extremity function, strength, movement, spasticity and occupational performance when used with two participants after inpatient stroke rehabilitation and while waiting for outpatient occupational therapy. Results: Significant improvements occurred in most of the quantitative outcome measures for both participants, with many of the improvements occurring during the first four weeks of the intervention. Four ‘person’ themes and one ‘context’ theme emerged from the qualitative data that supported the quantitative improvements. Conclusions: Early continued intervention with a SaeboFlex
orthosis resulted in improved upper extremity outcomes. Further research is needed to determine whether improvements are seen with a larger sample and are maintained over time.
Advisors/Committee Members: Barclay, Ruth (Physical Therapy) (supervisor), Ripat, Jacquie (Occupational Therapy).
Subjects/Keywords: Stroke; Orthosis; SaeboFlex; Upper extremity
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Semenko, B. (2017). Effectiveness of a dynamic wrist-hand orthosis in early outpatient rehabilitation of the upper extremity post stroke: a multiple single subject design evaluation. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/32760
Chicago Manual of Style (16th Edition):
Semenko, Brenda. “Effectiveness of a dynamic wrist-hand orthosis in early outpatient rehabilitation of the upper extremity post stroke: a multiple single subject design evaluation.” 2017. Masters Thesis, University of Manitoba. Accessed April 14, 2021.
http://hdl.handle.net/1993/32760.
MLA Handbook (7th Edition):
Semenko, Brenda. “Effectiveness of a dynamic wrist-hand orthosis in early outpatient rehabilitation of the upper extremity post stroke: a multiple single subject design evaluation.” 2017. Web. 14 Apr 2021.
Vancouver:
Semenko B. Effectiveness of a dynamic wrist-hand orthosis in early outpatient rehabilitation of the upper extremity post stroke: a multiple single subject design evaluation. [Internet] [Masters thesis]. University of Manitoba; 2017. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1993/32760.
Council of Science Editors:
Semenko B. Effectiveness of a dynamic wrist-hand orthosis in early outpatient rehabilitation of the upper extremity post stroke: a multiple single subject design evaluation. [Masters Thesis]. University of Manitoba; 2017. Available from: http://hdl.handle.net/1993/32760
Halmstad University
2.
Manzoor, Ali; Elkhbai, Hesham.
Adaptive Control of Foot Orthosis.
Degree: Computer and Electrical Engineering (IDE), 2007, Halmstad University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-650
► Major problems of the Foot Drop treatment are expensive and complex solutions. This work presents the performance of a new inexpensive method named as…
(more)
▼ Major problems of the Foot Drop treatment are expensive and complex solutions. This work presents the performance of a new inexpensive method named as Semi-Active Ankle Foot Orthosis (SAAFO). The concept of this approach is to use inexpensive sensors to detect foot step movement. The signals from the sensors afterwards will be fed to a control system of SAAFO in runtime for a smooth foot movement of a drop foot patient while walking. Different sensors have been studied in detail along with comparison to the proposed sensor system and mechanical design. The signals from the sensors are used to detect different phases of human walking. These sensors are placed at different positions on an orthosis and their signals are studied in detail. Experiments have been done in different conditions to get a realistic picture either this assembly can be implemented commercially. Signals are plotted and discussed yielding that the human walking phases can be easily and accurately detected using inexpensive sensor assembly.
Subjects/Keywords: orthosis; electrical
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Manzoor, Ali; Elkhbai, H. (2007). Adaptive Control of Foot Orthosis. (Thesis). Halmstad University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-650
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Manzoor, Ali; Elkhbai, Hesham. “Adaptive Control of Foot Orthosis.” 2007. Thesis, Halmstad University. Accessed April 14, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-650.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Manzoor, Ali; Elkhbai, Hesham. “Adaptive Control of Foot Orthosis.” 2007. Web. 14 Apr 2021.
Vancouver:
Manzoor, Ali; Elkhbai H. Adaptive Control of Foot Orthosis. [Internet] [Thesis]. Halmstad University; 2007. [cited 2021 Apr 14].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-650.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Manzoor, Ali; Elkhbai H. Adaptive Control of Foot Orthosis. [Thesis]. Halmstad University; 2007. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-650
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Delft University of Technology
3.
Meijneke, C. (author).
An autonomous lightweight actuated orthosis to support ankle plantar flexion.
Degree: 2013, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:38fb7500-0098-4724-b8be-7cfcc3d9f3d2
► This thesis aimed to design and realize an autonomous actuated ankle foot orthosis that - by injecting power around the ankle joint - can increase…
(more)
▼ This thesis aimed to design and realize an autonomous actuated ankle foot orthosis that - by injecting power around the ankle joint - can increase mobility of patients with walking impairments. Ankle plantarflexion is a good target for adding this extra support because of the isolated boost of power that needs to be generated during push-off which patients often lack. The conceptual phase resulted in a mechanical design that uses an electric motor and ball-screw gear to create a linear actuator that exerts ankle power via a linkage mechanism. A spring was implemented between the actuator and load, by making the output linkage flexible (a leaf spring). To minimize de devices weight, the approach of this thesis was to find the optimal actuation system, which accounts for a significant part of the total weight of the orthosis. This was done by creating a dynamic model of the motor and gear and use it to optimize the parameters of the linkage mechanism and spring for the amount of push-off power supplied to the ankle. Given the optimized actuation system, the rest of the design was designed and created. Doing walking tests with humans was beyond the scope of this thesis, but preliminary tests to assess the device's performance showed that: (1) The mass of the orthosis is 1.5 kg and mass of the backpack is 5.2 kg, (2) The backpack contains a functional joint torque controller, and (3) The device is capable of autonomous operation. With this set of specifications our ankle-foot orthosis is powered, autonomous and the lightest currently build. We hope that further research with our orthosis will increase the quality of life of patients currently living with a walking impairment.
BMD
BioMechanical Engineering
Mechanical, Maritime and Materials Engineering
Advisors/Committee Members: Van der Kooij, H. (mentor), Van Dijk, W. (mentor).
Subjects/Keywords: orthosis; PAFO; ankle planterflexion
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Meijneke, C. (. (2013). An autonomous lightweight actuated orthosis to support ankle plantar flexion. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:38fb7500-0098-4724-b8be-7cfcc3d9f3d2
Chicago Manual of Style (16th Edition):
Meijneke, C (author). “An autonomous lightweight actuated orthosis to support ankle plantar flexion.” 2013. Masters Thesis, Delft University of Technology. Accessed April 14, 2021.
http://resolver.tudelft.nl/uuid:38fb7500-0098-4724-b8be-7cfcc3d9f3d2.
MLA Handbook (7th Edition):
Meijneke, C (author). “An autonomous lightweight actuated orthosis to support ankle plantar flexion.” 2013. Web. 14 Apr 2021.
Vancouver:
Meijneke C(. An autonomous lightweight actuated orthosis to support ankle plantar flexion. [Internet] [Masters thesis]. Delft University of Technology; 2013. [cited 2021 Apr 14].
Available from: http://resolver.tudelft.nl/uuid:38fb7500-0098-4724-b8be-7cfcc3d9f3d2.
Council of Science Editors:
Meijneke C(. An autonomous lightweight actuated orthosis to support ankle plantar flexion. [Masters Thesis]. Delft University of Technology; 2013. Available from: http://resolver.tudelft.nl/uuid:38fb7500-0098-4724-b8be-7cfcc3d9f3d2
Delft University of Technology
4.
Verbakel, F. (author).
Design and evaluation of a stiffness compensating ankle-foot orthosis.
Degree: 2013, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:c22a5bb4-c450-40fa-826f-f628b83a87ff
► This study proposes an ankle-foot orthosis (AFO) based on a novel concept to compensate increased ankle joint stiffness by adding negative stiffness to the joint.…
(more)
▼ This study proposes an ankle-foot orthosis (AFO) based on a novel concept to compensate increased ankle joint stiffness by adding negative stiffness to the joint. The negative stiffness working principle is a mechanism consisting of a spring generating force around a rotation axis, with a variable moment arm. The spring force is decreasing, when rotating the axis, less than the moment arm is increasing and torque thus increases. A mathematical model has been used to dimension different design parameters. The negative stiffness working principle has been realized with the first negative stiffness orthosis (NSO). Ten able-bodied subjects with an artificially increased ankle joint stiffness performed passive and active Range of Motion (RoM) tasks while wearing the NSO. The NSO increases ankle angles for constant torque input. Maximal active dorsiflexion angle increased as well, while dorsiflexor muscle EMG-activity decreased for equal ankle angles. The results show that the negative stiffness mechanism is able to partly compensate stiffness and support a better dorsiflexion angle to force ratio, which is especially beneficial in UMND patients with weaker muscles than normal. A prototype, suitable for walking, is to be developed.
BMD
BioMechanical Engineering
Mechanical, Maritime and Materials Engineering
Advisors/Committee Members: De Vlugt, E. (mentor), De Groot, J.H. (mentor).
Subjects/Keywords: ankle-foot orthosis; negative stiffness
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Verbakel, F. (. (2013). Design and evaluation of a stiffness compensating ankle-foot orthosis. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:c22a5bb4-c450-40fa-826f-f628b83a87ff
Chicago Manual of Style (16th Edition):
Verbakel, F (author). “Design and evaluation of a stiffness compensating ankle-foot orthosis.” 2013. Masters Thesis, Delft University of Technology. Accessed April 14, 2021.
http://resolver.tudelft.nl/uuid:c22a5bb4-c450-40fa-826f-f628b83a87ff.
MLA Handbook (7th Edition):
Verbakel, F (author). “Design and evaluation of a stiffness compensating ankle-foot orthosis.” 2013. Web. 14 Apr 2021.
Vancouver:
Verbakel F(. Design and evaluation of a stiffness compensating ankle-foot orthosis. [Internet] [Masters thesis]. Delft University of Technology; 2013. [cited 2021 Apr 14].
Available from: http://resolver.tudelft.nl/uuid:c22a5bb4-c450-40fa-826f-f628b83a87ff.
Council of Science Editors:
Verbakel F(. Design and evaluation of a stiffness compensating ankle-foot orthosis. [Masters Thesis]. Delft University of Technology; 2013. Available from: http://resolver.tudelft.nl/uuid:c22a5bb4-c450-40fa-826f-f628b83a87ff
University of Ottawa
5.
Herbert-Copley, Andrew.
Design and Evaluation of a Variable Resistance Orthotic Knee Joint
.
Degree: 2015, University of Ottawa
URL: http://hdl.handle.net/10393/32380
► Knee-ankle-foot orthoses (KAFOs) are full leg braces for individuals with knee extensor weakness, designed to support the person during weight bearing activities by preventing knee…
(more)
▼ Knee-ankle-foot orthoses (KAFOs) are full leg braces for individuals with knee extensor
weakness, designed to support the person during weight bearing activities by preventing knee
flexion. KAFOs typically result in an unnatural gait pattern and are primarily used for level
ground walking. A novel variable resistance orthotic knee joint was designed and evaluated to
address these limitations. This low profile design fits beneath normal clothing. Mechanical and
biomechanical testing demonstrated that the design resisted knee motion during stance phase,
released the knee joint without restricting the knee’s range of movement, and provided flexion
resistance during stair descent. Design modifications and related testing procedures were
developed to further improve joint performance and to validate the design prior to testing on
individuals with knee extensor weakness.
Subjects/Keywords: KAFO;
SCKAFO;
Orthosis;
Biomechanics;
Knee;
Hydraulic
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Herbert-Copley, A. (2015). Design and Evaluation of a Variable Resistance Orthotic Knee Joint
. (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/32380
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Herbert-Copley, Andrew. “Design and Evaluation of a Variable Resistance Orthotic Knee Joint
.” 2015. Thesis, University of Ottawa. Accessed April 14, 2021.
http://hdl.handle.net/10393/32380.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Herbert-Copley, Andrew. “Design and Evaluation of a Variable Resistance Orthotic Knee Joint
.” 2015. Web. 14 Apr 2021.
Vancouver:
Herbert-Copley A. Design and Evaluation of a Variable Resistance Orthotic Knee Joint
. [Internet] [Thesis]. University of Ottawa; 2015. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/10393/32380.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Herbert-Copley A. Design and Evaluation of a Variable Resistance Orthotic Knee Joint
. [Thesis]. University of Ottawa; 2015. Available from: http://hdl.handle.net/10393/32380
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
6.
Cusin, Étienne.
Apports d'une orthèse de décharge dynamique dans le traitement de l'arthrose médiale du genou : évaluation biomécanique et perspectives cliniques : Clinical insights and biomechanical evaluation of a dynamic unloader brace for medial knee osteoarthritis.
Degree: Docteur es, Staps, 2017, Université Grenoble Alpes (ComUE)
URL: http://www.theses.fr/2017GREAA012
► En France, plus d’une personne sur dix souffre d’arthrose où le compartiment médial de l’articulation du genou demeure largement affecté. Afin de lutter contre ce…
(more)
▼ En France, plus d’une personne sur dix souffre d’arthrose où le compartiment médial de l’articulation du genou demeure largement affecté. Afin de lutter contre ce fléau qui occasionne des dépenses croissantes dans notre système de santé, l’intégration de traitements non-pharmacologiques et conservateurs dans la prise en charge de cette pathologie est une priorité. De ce fait, les orthèses de décharge pourraient tout à fait répondre à cette nécessité. Malheureusement, au fil des rares prescriptions, force est de constater l’abandon trop rapide de ce type d’appareillage. Majoritairement conçues pour exercer une action mécanique à trois points de pression, les orthèses de décharge sont davantage reconnues pour leur inconfort que pour leurs effets bénéfiques. Etre assis, se tenir debout ou simplement marcher sont autant de situations selon lesquelles l’appareillage devrait être en mesure de s’adapter. Pour autant, les orthèses de décharge exercent, à tort, une seule et même action mécanique continue. Cette dernière est identifiée comme responsable de leur inconfort. Fort de ce constat, ce travail de thèse se penche sur une piste jusqu’alors inexplorée, une action mécanique variable des orthèses de décharge à trois points de pression, garante d’un confort accru dans le but d’améliorer l’alliance thérapeutique. Sur la base de cette idée brevetée, nous verrons à travers ce travail les différentes étapes de validation qui permettent de caractériser un appareillage dynamique, avantageusement comparé aux modèles jusqu’alors proposés.
In France, more than one person out of ten suffers from osteoarthritis, which particularly affects the medial compartment of the knee joint. In order to overcome this issue, which causes increased expenditure in the healthcare system, the integration of non-pharmacological and conservative treatments for the management of this pathology is a priority. As a result, unloader knee braces could fully meet this need. However, few prescriptions and a poor long-term compliance are frequently reported. Usually designed to exert a mechanical action with three-point pressure, unloader knee braces are better known for causing discomfort rather than leading to beneficial effects. Indeed, these braces exert erroneously a continuous mechanical action, which has been identified as responsible for the discomfort. To counteract this problem, equipment should be able to adapt between situations as sitting, standing or walking. Therefore, this thesis focuses on a changeable mechanical action of three-point pressure orthoses, ensuring greater comfort and potentially resulting in improved compliance. According to this idea, this work explores the different stages of validation, which allow to characterize a dynamic unloader knee brace and describe its advantages over the traditional proposed models.
Advisors/Committee Members: Rougier, Patrice (thesis director).
Subjects/Keywords: Orthese; Genou; Arthrose; Orthosis; Knee; Osteoarthritis; 617.582
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cusin, Ã. (2017). Apports d'une orthèse de décharge dynamique dans le traitement de l'arthrose médiale du genou : évaluation biomécanique et perspectives cliniques : Clinical insights and biomechanical evaluation of a dynamic unloader brace for medial knee osteoarthritis. (Doctoral Dissertation). Université Grenoble Alpes (ComUE). Retrieved from http://www.theses.fr/2017GREAA012
Chicago Manual of Style (16th Edition):
Cusin, Étienne. “Apports d'une orthèse de décharge dynamique dans le traitement de l'arthrose médiale du genou : évaluation biomécanique et perspectives cliniques : Clinical insights and biomechanical evaluation of a dynamic unloader brace for medial knee osteoarthritis.” 2017. Doctoral Dissertation, Université Grenoble Alpes (ComUE). Accessed April 14, 2021.
http://www.theses.fr/2017GREAA012.
MLA Handbook (7th Edition):
Cusin, Étienne. “Apports d'une orthèse de décharge dynamique dans le traitement de l'arthrose médiale du genou : évaluation biomécanique et perspectives cliniques : Clinical insights and biomechanical evaluation of a dynamic unloader brace for medial knee osteoarthritis.” 2017. Web. 14 Apr 2021.
Vancouver:
Cusin Ã. Apports d'une orthèse de décharge dynamique dans le traitement de l'arthrose médiale du genou : évaluation biomécanique et perspectives cliniques : Clinical insights and biomechanical evaluation of a dynamic unloader brace for medial knee osteoarthritis. [Internet] [Doctoral dissertation]. Université Grenoble Alpes (ComUE); 2017. [cited 2021 Apr 14].
Available from: http://www.theses.fr/2017GREAA012.
Council of Science Editors:
Cusin Ã. Apports d'une orthèse de décharge dynamique dans le traitement de l'arthrose médiale du genou : évaluation biomécanique et perspectives cliniques : Clinical insights and biomechanical evaluation of a dynamic unloader brace for medial knee osteoarthritis. [Doctoral Dissertation]. Université Grenoble Alpes (ComUE); 2017. Available from: http://www.theses.fr/2017GREAA012
Delft University of Technology
7.
Baan, Maureen (author).
Design of a flat dynamic hand orthosis finger for DMD patients.
Degree: 2019, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:b15c2b38-2376-4435-84c8-5bda95f86d82
► People with Duchenne muscular dystrophy (DMD) will suffer from a limited hand function. Therefore, a dynamic hand orthosis could be one of the solutions to…
(more)
▼ People with Duchenne muscular dystrophy (DMD) will suffer from a limited hand function. Therefore, a dynamic hand orthosis could be one of the solutions to improve their hand function and quality of life. However, at this moment, none of the obtainable hand orthoses fits their special needs. The goal of this research is to design a flat dynamic hand orthosis finger for DMD patients with Brooke scale grades 4, 5, or 6 and to test its functioning. The design consists of a silicone outer part, and an inner part from polylactic acid. The presented prototype is small, can generate a flexion movement and has a finger mass of 20 g. Output forces were tested in horizontal and vertical direction and different designs were compared in relation to the bending angle. The reached output forces in horizontal and vertical direction with a certain pressure were 3.4 N (10.5 N target) at 1.75 bar and 0.6 N at 2 bar, respectively. The bending angles were 35â—¦ for the MCP joint, 78â—¦ for the PIP joint, and 58â—¦ for the DIP joint. To conclude, this paper presented a new design of a finger for a hand orthosis. The prototype is flat, can generate flexion movements and has a finger mass of 20 g. Except for the MCP joint, the bending angles meet the requirements. Only the output forces were too low. An outer structure of another material might solve this.
Biomedical Engineering
Advisors/Committee Members: Plettenburg, Dick (mentor), van der Helm, Frans (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: DMD; Soft pneumatic actuator; Dynamic hand orthosis
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Baan, M. (. (2019). Design of a flat dynamic hand orthosis finger for DMD patients. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:b15c2b38-2376-4435-84c8-5bda95f86d82
Chicago Manual of Style (16th Edition):
Baan, Maureen (author). “Design of a flat dynamic hand orthosis finger for DMD patients.” 2019. Masters Thesis, Delft University of Technology. Accessed April 14, 2021.
http://resolver.tudelft.nl/uuid:b15c2b38-2376-4435-84c8-5bda95f86d82.
MLA Handbook (7th Edition):
Baan, Maureen (author). “Design of a flat dynamic hand orthosis finger for DMD patients.” 2019. Web. 14 Apr 2021.
Vancouver:
Baan M(. Design of a flat dynamic hand orthosis finger for DMD patients. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Apr 14].
Available from: http://resolver.tudelft.nl/uuid:b15c2b38-2376-4435-84c8-5bda95f86d82.
Council of Science Editors:
Baan M(. Design of a flat dynamic hand orthosis finger for DMD patients. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:b15c2b38-2376-4435-84c8-5bda95f86d82
Delft University of Technology
8.
Veltmeijer, Ewoud (author).
Development of a 3D printed patient specific Ankle Foot Orthosis.
Degree: 2019, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:7620d9af-31cb-4b37-a3bb-d6b1090e5aab
► Patients diagnosed with drop foot syndrome experience difficulties creating enough clearance during walking, resulting in stumbling over very small obstacles. An Ankle Foot Orthosis is…
(more)
▼ Patients diagnosed with drop foot syndrome experience difficulties creating enough clearance during walking, resulting in stumbling over very small obstacles. An Ankle Foot Orthosis is an orthopaedic aid which limits the plantar flexion of the foot, providing a safe walking gait for the patient. Currently, these AFOs are vacuum formed over a machined foam reproduction of the patients leg. The patient specific geometry requirements make it ideal for the one-off production freedom of 3D printing. This master thesis investigated the feasibility of 3D printing a patient specific Ankle Foot Orthosis and explored the possible improvements compared to the current vacuum formed AFOs. The current vacuum formed AFOs provides suboptimal support and increases the energy cost of walking, this was taken into account when deciding the approach for this project. The approach was divided in the creation of an improved walking support and the investigation to other possible improvements of 3D printing. A new spring system was developed which provided the minimal required support during walking: free dorsiflexion and a constant counter moment during plantar flexion for every ankle. Rigged bending tests which simulated the ankle range of motion showed near perfect support results. However, the improved effect on the patient’s gait could not yet be proven. This was due to an imperfect testing prototype, the required low tolerances of the spring system which could not be met and the fact that the springs were not strong enough. Several design improvements have been proposed and can be found in the last chapter For COR, the best continuation of this project would be to use the gathered requirements and design improvements to develop a simple ‘plantar flexion stop AFO’. If an orthosis with sufficient support is developed, gradual dynamic improvements can be implemented to allow for more freedom of movement.
Integrated Product Design
Advisors/Committee Members: Doubrovski, Zjenja (mentor), Jellema, Anton (mentor), Delft University of Technology (degree granting institution).
Subjects/Keywords: AFO; Ankle Foot Orthosis; 3D printed; Orthotics
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Veltmeijer, E. (. (2019). Development of a 3D printed patient specific Ankle Foot Orthosis. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:7620d9af-31cb-4b37-a3bb-d6b1090e5aab
Chicago Manual of Style (16th Edition):
Veltmeijer, Ewoud (author). “Development of a 3D printed patient specific Ankle Foot Orthosis.” 2019. Masters Thesis, Delft University of Technology. Accessed April 14, 2021.
http://resolver.tudelft.nl/uuid:7620d9af-31cb-4b37-a3bb-d6b1090e5aab.
MLA Handbook (7th Edition):
Veltmeijer, Ewoud (author). “Development of a 3D printed patient specific Ankle Foot Orthosis.” 2019. Web. 14 Apr 2021.
Vancouver:
Veltmeijer E(. Development of a 3D printed patient specific Ankle Foot Orthosis. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Apr 14].
Available from: http://resolver.tudelft.nl/uuid:7620d9af-31cb-4b37-a3bb-d6b1090e5aab.
Council of Science Editors:
Veltmeijer E(. Development of a 3D printed patient specific Ankle Foot Orthosis. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:7620d9af-31cb-4b37-a3bb-d6b1090e5aab
University of California – Berkeley
9.
Hyun, Dong Jin.
On the Dynamics and Control of a Medical Exoskeleton.
Degree: Mechanical Engineering, 2012, University of California – Berkeley
URL: http://www.escholarship.org/uc/item/2h09q4sr
► A number of passive orthoses have been developed to provide gait assistance and rehabilitation for individuals who have lost the ability to walk. However, the…
(more)
▼ A number of passive orthoses have been developed to provide gait assistance and rehabilitation for individuals who have lost the ability to walk. However, the required metabolic cost for legged mobility with conventional orthoses is huge, preventing its daily use. Using the forces/torques generated by external actuators is one of the effective ways to solve the problem induced from the considerable effort required for orthotic gait. For that, design of a compact, efficient and light weight actuation system and its delicate control are required. In Chapter 1, Powered Reciprocating Hip Orthosis, a novel hip actuator making use of the coupling hip mechanism of the reciprocating gait orthosis (RGO) is proposed. The RGO, a wearable and passive orthosis, provides paralyzed patients with hands-free standing and the ability for dynamic ambulation without any external actuation. Therefore, the mechanism of the RGO can be utilized effectively for improving the hip actuator design for a powered lower limb orthosis. Starting with this motivation, a powered limb orthosis combined with the conventional RGO was designed and its control structure was implemented on a paraplegic subject (T12 complete). First, a dynamic analysis is presented to identify and better understand the potential use of the RGO mechanism. For the analysis, the simple RGO dynamic model at a single support phase is obtained and its equations of motion are derived using Lagrange's equations of motion. Through the physical interpretation provided by the inverse dynamics, it is proved that the required maximum hip torque for stance phase is significantly decreased when the RGO hip coupling mechanism is applied. An unproved torso stability provided by the design is also investigated. Subsequently, overall control structure with a user-interface module is introduced to provide basic functions to the powered orthosis for locomotion. While implementing the designed orthosis with the human subject, a difficult problem on the dorsiflexion-activated passive knee orthosis of the conventional RGO is discussed and leads to Chapter 2: Friction Damping Control Knee Orthosis. A simple, but effective, microprocessor orthotic knee control method is presented with a novel knee joint design and an inertial measurement unit (IMU) sensor in Chapter 2. First, an electric hardware and a control structure with the IMU sensor are introduced. Next, to understand the knee dynamics and determine a control strategy, a lower extremity model is set up. Using this model, a dynamic analysis for ballistic walking with overshooting and circumduction of the hip joint motion, and downstairs walking is executed with the experimental hip motion data. Based on the observations for human hip joint motion and the obtained dynamic simulation results, a friction damping control method is proposed. Its implementation enables natural walking on level ground and provides the appropriate resistance of the knee joint in downstairs walking for assistance and safety to normal human subjects using the designed…
Subjects/Keywords: Mechanical engineering; Electrical engineering; Biomechanics; biped locomotion; exoskeleton; inertial measurement unit sensor; knee orthosis; reciprocating gait orthosis; Spinal Cord Injury
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hyun, D. J. (2012). On the Dynamics and Control of a Medical Exoskeleton. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/2h09q4sr
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hyun, Dong Jin. “On the Dynamics and Control of a Medical Exoskeleton.” 2012. Thesis, University of California – Berkeley. Accessed April 14, 2021.
http://www.escholarship.org/uc/item/2h09q4sr.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hyun, Dong Jin. “On the Dynamics and Control of a Medical Exoskeleton.” 2012. Web. 14 Apr 2021.
Vancouver:
Hyun DJ. On the Dynamics and Control of a Medical Exoskeleton. [Internet] [Thesis]. University of California – Berkeley; 2012. [cited 2021 Apr 14].
Available from: http://www.escholarship.org/uc/item/2h09q4sr.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hyun DJ. On the Dynamics and Control of a Medical Exoskeleton. [Thesis]. University of California – Berkeley; 2012. Available from: http://www.escholarship.org/uc/item/2h09q4sr
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
10.
Seegmiller, Daniel Brad.
The Effects of Wrist Orthoses on the Stiffness of Wrist Rotations.
Degree: MS, 2013, Brigham Young University
URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=5265&context=etd
► Wrist orthoses are the most common upper limb orthoses, being used by thousands of individuals each year to stabilize, immobilize, or support the wrist joint.…
(more)
▼ Wrist orthoses are the most common upper limb orthoses, being used by thousands of individuals each year to stabilize, immobilize, or support the wrist joint. Wrist orthoses achieve their function by altering the stiffness of the wrist joint (Figure 1-1). However, there is no quantitative understanding of how wrist orthoses affect wrist stiffness, and consequently, wrist orthosis development often relies on feel, intuition, or empirical heuristics rather than a methodical, quantitative approach. Because wrist movement control is dominated by wrist joint stiffness (Charles and Hogan 2011) a quantitative understanding of how wrist orthoses alter the stiffness of the wrist is imperative to the development of improved wrist orthoses with properties tailorable to the needs of the thousands of individuals who use them. In order to begin bridging this gap, our research characterized the stiffness of four common groups of wrist orthosis in two degrees of freedom: flexion-extension (FE) and radioulnar deviation (RUD) which are the degrees of motion most affected by wrist orthoses. We used a wrist robot to measure how twelve orthoses altered the passive wrist stiffness of twenty healthy subjects (three orthoses and five subjects per orthosis group). To perform these measurements we designed a unique wrist-mounting fixture (Figure 3-2) which allows the wrist robot to manipulate the hand inside an orthosis without interfering with orthosis motion (more accurately simulating the actual hand-orthosis interaction). Our results showed that (1) three out of four orthosis groups significantly altered the stiffness of the wrist joint, (2) orthoses in the same group are not generally significantly different than one another, and (3) there are important differences in stiffness between different orthosis groups. An interesting implication of our research is the result that in many cases orthoses with volar stays may be interchanged with orthoses with both volar and dorsal stays without significant changes in orthosis performance (Table 4-2). We anticipate this work will prove fruitful toward the future study of wrist orthoses' effects on wrist movement behavior and the future improvement of wrist orthosis design.
Subjects/Keywords: stiffness; wrist; orthosis; wrist orthosis; Mechanical Engineering
…2
Figure 3-1: Orthosis Market Analysis Diagram… …9
Figure 3-3: Robot and Orthosis Range of Motion… …14
Figure 4-1: Stiffness Measures for Each Orthosis with Standard Error Bars… …17
Figure B-1: Weighted Wrist Orthosis Distribution by Type… …29
Figure B-2: Unique Wrist Orthosis Distribution by Type…
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Seegmiller, D. B. (2013). The Effects of Wrist Orthoses on the Stiffness of Wrist Rotations. (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=5265&context=etd
Chicago Manual of Style (16th Edition):
Seegmiller, Daniel Brad. “The Effects of Wrist Orthoses on the Stiffness of Wrist Rotations.” 2013. Masters Thesis, Brigham Young University. Accessed April 14, 2021.
https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=5265&context=etd.
MLA Handbook (7th Edition):
Seegmiller, Daniel Brad. “The Effects of Wrist Orthoses on the Stiffness of Wrist Rotations.” 2013. Web. 14 Apr 2021.
Vancouver:
Seegmiller DB. The Effects of Wrist Orthoses on the Stiffness of Wrist Rotations. [Internet] [Masters thesis]. Brigham Young University; 2013. [cited 2021 Apr 14].
Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=5265&context=etd.
Council of Science Editors:
Seegmiller DB. The Effects of Wrist Orthoses on the Stiffness of Wrist Rotations. [Masters Thesis]. Brigham Young University; 2013. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=5265&context=etd
University of Minnesota
11.
Houle, Katherine L.
A power transmission design for an untethered hydraulic
ankle orthosis.
Degree: 2012, University of Minnesota
URL: http://purl.umn.edu/140327
► University of Minnesota M.S. thesis. Major: Mechanical Engineering. October 2012. Advisor: William K.Durfee. 1 computer file (PDF); ix, 77 pages, appendices A-C.
Introduction- Ankle-Foot Orthoses…
(more)
▼ University of Minnesota M.S. thesis. Major:
Mechanical Engineering. October 2012. Advisor: William K.Durfee. 1
computer file (PDF); ix, 77 pages, appendices A-C.
Introduction- Ankle-Foot Orthoses (AFO) can oer
assistance to people who have impaired gait due to lower limb and
ankle impairments. A powered AFO would fully replace ankle
function. A powered AFO should be lightweight, compact and
untethered. An hydraulic power transmission design for an AFO has
been proposed. The hydraulic power transmission design consists of
a battery, a DC motor, a piston pump, a double acting cylinder, and
a moment arm acting at the ankle. Methods- The Hydraulic Ankle Foot
Orthosis (HAFO) was designed with a method that works from ankle
kinetics through each component's \across variables" and \through
variables". The HAFO analysis was performed using a complimentary
approach allowing for comparison component sizing. A longer moment
arm at the ankle required a higher uid ow rate and cylinder shaft
speed but allows for lower system pressure and motor torque. The
HAFO was analyzed with a model using an object-oriented approach
that allows for manipulation of component parameters to better
understand system behavior and eciency. This simulated analysis was
augmented and authenticated by a hardware prototype which provided
\real life" parameters for testing the model. The model was used to
explore the elements of the transmission design. The hydraulic
transmission system's eciency was aected by component geometry. The
system's eciency increased with a decrease in the cracking pressure
of the cap-side check valve and with an increase in cylinder bore
diameter. Results- Motors are characteristically high speed and low
torque therefore combining a DC motor with a small displacement
pump would result in a system with a low ow rate. A lower ow rate
results in a small velocity at the ankle. This small velocity
allows a small moment arm to be used. However a small moment arm
and low pump displacement require a higher motor torque to create
the desired force at the ankle. This is the tradeo of the
transmission as power must be conserved within each component.
Design Recommendations- The cylinder bore diameter is set at half
an inch to keep the system small and compact. Using an achievable
motor speed of 6,000 rpm in combination with a pump displacement of
0.4 cc/rev results in a piston velocity of 0.2 m/s. A moment arm of
5 cm with this piston velocity achieves the desired ankle angular
velocity. With a 5 cm moment arm and the half-inch cylinder, a
motor torque of 1.2 Nm is needed to achieve maximum ankle torque.
Due to this torque, the cylinder and pump will have to withstand
2,000 psi. Most hydraulic equipment is built to withstand at least
2,000 psi. A search did not nd any currently available hydraulic
cylinders of half-inch diameter or hydraulic piston pumps that
operate at 6,000 rpm. These components would have to be customized
for the system.
Subjects/Keywords: Ankle-foot orthosis; Fluid power; Hydraulics; Model; Transmission design
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Houle, K. L. (2012). A power transmission design for an untethered hydraulic
ankle orthosis. (Masters Thesis). University of Minnesota. Retrieved from http://purl.umn.edu/140327
Chicago Manual of Style (16th Edition):
Houle, Katherine L. “A power transmission design for an untethered hydraulic
ankle orthosis.” 2012. Masters Thesis, University of Minnesota. Accessed April 14, 2021.
http://purl.umn.edu/140327.
MLA Handbook (7th Edition):
Houle, Katherine L. “A power transmission design for an untethered hydraulic
ankle orthosis.” 2012. Web. 14 Apr 2021.
Vancouver:
Houle KL. A power transmission design for an untethered hydraulic
ankle orthosis. [Internet] [Masters thesis]. University of Minnesota; 2012. [cited 2021 Apr 14].
Available from: http://purl.umn.edu/140327.
Council of Science Editors:
Houle KL. A power transmission design for an untethered hydraulic
ankle orthosis. [Masters Thesis]. University of Minnesota; 2012. Available from: http://purl.umn.edu/140327
Vanderbilt University
12.
Farris, Ryan James.
Design of a Powered Lower-Limb Exoskeleton and Control for Gait Assistance in Paraplegics.
Degree: PhD, Mechanical Engineering, 2012, Vanderbilt University
URL: http://hdl.handle.net/1803/10607
► This work describes the design and implementation of a powered lower limb exoskeleton for providing legged mobility to the spinal cord injury (SCI) population. The…
(more)
▼ This work describes the design and implementation of a powered lower limb exoskeleton for providing legged mobility to the spinal cord injury (SCI) population. The exoskeleton has a mass of 12.5 kg and provides sagital plane joint torques of up to 65 Nm at the hips and knees to enable walking, sit-to-stand transitions, stand-to-sit transitions, stair ascent, and stair descent. A custom distributed embedded system controls the exoskeleton with power being provided by a lithium polymer battery. The control structure provides an intuitive interface between the user and the exoskeleton for ease of use with a minimal learning curve. In order to demonstrate the ability of the exoskeleton to assist walking and stair ascent/descent, the exoskeleton was experimentally implemented on a paraplegic
subject with a T10 complete injury. Data collected during walking indicates a high degree of step-to-step repeatability of hip and knee trajectories (as enforced by the exoskeleton). Experimental data is presented characterizing the joint torque and power required to provide stair ascent and descent functionality to a person with paraplegia. Also described is a functional assessment protocol for assessing the mobility and exertion associated with systems that provide legged mobility assistance for persons with SCI.
Advisors/Committee Members: Robert J. Webster III (committee member), Eric Barth (committee member), Nilanjan Sarkar (committee member), Peter Konrad (committee member), Chris Byrne (committee member), Michael Goldfarb (Committee Chair).
Subjects/Keywords: rehabilitation robotics; paraplegia; powered orthosis; SCI; Lower limb exoskeleton; assitive technology
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Farris, R. J. (2012). Design of a Powered Lower-Limb Exoskeleton and Control for Gait Assistance in Paraplegics. (Doctoral Dissertation). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/10607
Chicago Manual of Style (16th Edition):
Farris, Ryan James. “Design of a Powered Lower-Limb Exoskeleton and Control for Gait Assistance in Paraplegics.” 2012. Doctoral Dissertation, Vanderbilt University. Accessed April 14, 2021.
http://hdl.handle.net/1803/10607.
MLA Handbook (7th Edition):
Farris, Ryan James. “Design of a Powered Lower-Limb Exoskeleton and Control for Gait Assistance in Paraplegics.” 2012. Web. 14 Apr 2021.
Vancouver:
Farris RJ. Design of a Powered Lower-Limb Exoskeleton and Control for Gait Assistance in Paraplegics. [Internet] [Doctoral dissertation]. Vanderbilt University; 2012. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1803/10607.
Council of Science Editors:
Farris RJ. Design of a Powered Lower-Limb Exoskeleton and Control for Gait Assistance in Paraplegics. [Doctoral Dissertation]. Vanderbilt University; 2012. Available from: http://hdl.handle.net/1803/10607
Vanderbilt University
13.
Quintero, Hugo Alberto.
A powered lower limb exoskeleton supplemented with FES for gait assistance in paraplegic patients.
Degree: PhD, Mechanical Engineering, 2012, Vanderbilt University
URL: http://hdl.handle.net/1803/10631
► This thesis presents the design, implementation and testing of a lower limb exoskeleton that allows paraplegic patients to stand and walk. The device is supplemented…
(more)
▼ This thesis presents the design, implementation and testing of a lower limb exoskeleton that allows paraplegic patients to stand and walk. The device is supplemented with functional electrical stimulation (FES) at the quadriceps muscles to obtain the physiological benefits provided by FES and increase the extensive torque available at the knee joints. The wearable robot is a five link mechanism consisting of a hip piece that is attached around the lower torso, two thigh pieces and two shank pieces respectively strapped to the thighs and shanks of the user. The device has powered hip and knee joints with all the actuation and transmission contained in the thigh pieces. The thigh pieces also contain the distributed embedded system while the battery is carried in the back of the hip piece. The device is designed to be used with ankle foot orthoses to stabilize the ankle joints and forearm crutches that allow the user to maintain the balance. All the sensors and instrumentation are contained in the device that is controlled by the user by postural commands that affect the center of pressure of the user-robot system. The general control is structured in two levels: the lower level is an angular position PD controller around the joints while the higher level is a state machine that coordinates the four joints to perform the different maneuvers. The device was tested by a T10 ASIA A (complete) paraplegic patient who by using the exoskeleton was able to perform sit to stand, stand to sit and walking maneuvers. When compared with long leg braces the efficacy of the device was significantly high and the walking difficulty perceived by the user was significantly less. The energy provided by the motors in sit to stand and stair climbing maneuvers was significantly reduced when FES was used.
Advisors/Committee Members: Robert J. Webster III (committee member), Eric J. Barth (committee member), Peter Konrad (committee member), Nilanjan Sarkar (committee member), Michael Goldfarb (Committee Chair).
Subjects/Keywords: human machine interface; posture based control; exoskeleton; paraplegia; orthosis
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Quintero, H. A. (2012). A powered lower limb exoskeleton supplemented with FES for gait assistance in paraplegic patients. (Doctoral Dissertation). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/10631
Chicago Manual of Style (16th Edition):
Quintero, Hugo Alberto. “A powered lower limb exoskeleton supplemented with FES for gait assistance in paraplegic patients.” 2012. Doctoral Dissertation, Vanderbilt University. Accessed April 14, 2021.
http://hdl.handle.net/1803/10631.
MLA Handbook (7th Edition):
Quintero, Hugo Alberto. “A powered lower limb exoskeleton supplemented with FES for gait assistance in paraplegic patients.” 2012. Web. 14 Apr 2021.
Vancouver:
Quintero HA. A powered lower limb exoskeleton supplemented with FES for gait assistance in paraplegic patients. [Internet] [Doctoral dissertation]. Vanderbilt University; 2012. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1803/10631.
Council of Science Editors:
Quintero HA. A powered lower limb exoskeleton supplemented with FES for gait assistance in paraplegic patients. [Doctoral Dissertation]. Vanderbilt University; 2012. Available from: http://hdl.handle.net/1803/10631
Universidade do Rio Grande do Norte
14.
Araújo, Márcio Valério de.
Desenvolvimento de Uma Órtese Ativa Para os Membros Inferiores Com Sistema Eletrônico Embarcado
.
Degree: 2010, Universidade do Rio Grande do Norte
URL: http://repositorio.ufrn.br/handle/123456789/15313
► This work presents the development of a prototype of an intelligent active orthosis for lower limbs whit an electronic embedded system. The proposed orthosis is…
(more)
▼ This work presents the development of a prototype of an intelligent active
orthosis for lower limbs whit an electronic embedded system. The proposed
orthosis is an orthopedical
device with the main objective of providing walking capacity to people with partial or total loss of lower limbs movements. In order to design the kinematics, dynamics and the mechanical characteristics of the prototype, the biomechanics of the human body was analized. The
orthosis was projected to reproduce some of the movements of the human gait as walking in straight forward, sit down, get up, arise and go down steps. The joints of the
orthosis are controlled by DC motors equipped with mechanical reductions, whose purpose is to reduce rotational speed and increase the torque, thus generating smooth movements. The electronic embedded system is composed of two motor controller boards with two channels that communicate with a embedded PC, position sensors and limit switches. The gait movements of the
orthosis will be controlled by high level commands from a human-machine interface. The embedded electronic system interprets the high
level commands, generates the angular references for the joints of the
orthosis, controls and drives the actuators in order to execute the desired movements of the user
Advisors/Committee Members: Alsina, Pablo Javier (advisor), CPF:42487455420 (advisor), http://lattes.cnpq.br/3653597363789712 (advisor), Medeiros, Adelardo Adelino Dantas de (advisor), CPF:44418620400 (advisor), http://lattes.cnpq.br/6787525856497063 (advisor).
Subjects/Keywords: Eletrônica embarcada;
Órtese ativa;
Biomecânica;
Embedded electronic;
Active orthosis;
Biomechanic
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Araújo, M. V. d. (2010). Desenvolvimento de Uma Órtese Ativa Para os Membros Inferiores Com Sistema Eletrônico Embarcado
. (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/15313
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Araújo, Márcio Valério de. “Desenvolvimento de Uma Órtese Ativa Para os Membros Inferiores Com Sistema Eletrônico Embarcado
.” 2010. Thesis, Universidade do Rio Grande do Norte. Accessed April 14, 2021.
http://repositorio.ufrn.br/handle/123456789/15313.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Araújo, Márcio Valério de. “Desenvolvimento de Uma Órtese Ativa Para os Membros Inferiores Com Sistema Eletrônico Embarcado
.” 2010. Web. 14 Apr 2021.
Vancouver:
Araújo MVd. Desenvolvimento de Uma Órtese Ativa Para os Membros Inferiores Com Sistema Eletrônico Embarcado
. [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2010. [cited 2021 Apr 14].
Available from: http://repositorio.ufrn.br/handle/123456789/15313.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Araújo MVd. Desenvolvimento de Uma Órtese Ativa Para os Membros Inferiores Com Sistema Eletrônico Embarcado
. [Thesis]. Universidade do Rio Grande do Norte; 2010. Available from: http://repositorio.ufrn.br/handle/123456789/15313
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
15.
Rafael Vital Costa.
Desenvolvimento e análise da aplicabilidade de uma órtese tornozelo-pé durante a marcha de pacientes pós-ave.
Degree: 2009, Universidade Nove de Julho
URL: http://www4.uninove.br/tedeSimplificado/tde_busca/arquivo.php?codArquivo=310
► The change in gait is one of the main residual effects in patients following a stroke. Thus, ankle-foot orthoses are often used on this population.…
(more)
▼ The change in gait is one of the main residual effects in patients following a stroke. Thus, ankle-foot orthoses are often used on this population. The aim of the present study was to develop and assess the applicability of an experimental ankle-foot orthosis during the gait of patients with hemiparesis. Healthy individuals were assessed in the first study and stroke victims were assessed in the second study. Gait assessment was performed using two force plates and an electromyograph (both EMG System do Brasil) as well as a video camera (Sony). The experimental brace was made up of a single piece that fits over the foot and 1/3 of the distal tibia and has a steel spring. After signing terms of informed consent, the participants answered an evaluation chart drafted by the researcher and were then submitted to gait assessment. The following variables were evaluated: ground reaction force, speed, cadence, step length and stride length. Electromyographic signals were captured from the tibialis anterior, soleus, rectus femoralis and vastus lateralis muscles. Among the healthy subjects, the results revealed a non-significant increase in activity of the muscles evaluated with the use of the experimental ankle-foot othosis (p>0,05). Among the patients with hemiparesis, there was greater activation of the muscles evaluated, especially the rectus femoralis and vastus lateralis in the support and mid-support phases (p<0,05). The ground reaction curve among the patients with hemiparesis was more physiological with the use of the experimental ankle-foot orthosis in comparison to the use of a polypropylene ankle-foot orthosis and non-use of the AFO. There was no change in the spatial-temporal gait parameters among the healthy young individuals with the use of the brace. The patients with hemiparesis achieved an improvement in stride length with the use of the experimental ankle-foot orthosis in comparison to the use of a polypropylene ankle-foot orthosis (p<0,05). The present study demonstrated that there was greater activation of the muscles evaluated in both healthy individuals and patients with hemiparesis with the use of the brace. However, it cannot be affirmed that there was a significant improvement in the gait pattern of the patients with hemiparesis, as parameters such as gait speed did not demonstrate any significant differences. It is suggested that continuity be given with the undertaking of a longitudinal study in order to better assess the efficacy of the experimental brace on patients with hemiparesis.
A alteração na marcha é uma das principais sequelas residuais em pacientes pós-acidente vascular encefálico. Em virtude disso, as órteses de tornozelo-pé são muito utilizadas por essa população. O objetivo deste estudo foi desenvolver e avaliar a aplicabilidade de uma órtese de tornozelo-pé experimental durante a marcha de pacientes hemiparéticos. Foram avaliados indivÃduos saudáveis, no primeiro estudo, e com diagnóstico de acidente vascular encefálico, no segundo estudo. A avaliação da marcha foi feita utilizando…
Advisors/Committee Members: João Carlos Ferrari Corrêa, Cláudia Santos Oliveira, Fernanda Ishida Corrêa, Paulo de Tarso.
Subjects/Keywords: Hemiplegia; Eletromiografia.; Órtese; Ciências da Saúde; Electromyography.; Gait; Orthosis; Hemiparesis; Marcha
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Costa, R. V. (2009). Desenvolvimento e análise da aplicabilidade de uma órtese tornozelo-pé durante a marcha de pacientes pós-ave. (Thesis). Universidade Nove de Julho. Retrieved from http://www4.uninove.br/tedeSimplificado/tde_busca/arquivo.php?codArquivo=310
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Costa, Rafael Vital. “Desenvolvimento e análise da aplicabilidade de uma órtese tornozelo-pé durante a marcha de pacientes pós-ave.” 2009. Thesis, Universidade Nove de Julho. Accessed April 14, 2021.
http://www4.uninove.br/tedeSimplificado/tde_busca/arquivo.php?codArquivo=310.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Costa, Rafael Vital. “Desenvolvimento e análise da aplicabilidade de uma órtese tornozelo-pé durante a marcha de pacientes pós-ave.” 2009. Web. 14 Apr 2021.
Vancouver:
Costa RV. Desenvolvimento e análise da aplicabilidade de uma órtese tornozelo-pé durante a marcha de pacientes pós-ave. [Internet] [Thesis]. Universidade Nove de Julho; 2009. [cited 2021 Apr 14].
Available from: http://www4.uninove.br/tedeSimplificado/tde_busca/arquivo.php?codArquivo=310.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Costa RV. Desenvolvimento e análise da aplicabilidade de uma órtese tornozelo-pé durante a marcha de pacientes pós-ave. [Thesis]. Universidade Nove de Julho; 2009. Available from: http://www4.uninove.br/tedeSimplificado/tde_busca/arquivo.php?codArquivo=310
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Ottawa
16.
Levesque, Laurent De B.
Experimental Evaluation and Characterization of a Mobility Assist Device Physical Interface
.
Degree: 2018, University of Ottawa
URL: http://hdl.handle.net/10393/37365
► Ageing is linked to a decrease in mobility, which affects the quality of life of many elderly individuals. This is a growing challenge in industrialised…
(more)
▼ Ageing is linked to a decrease in mobility, which affects the quality of life of many elderly individuals. This is a growing challenge in industrialised societies since the proportion of elderly individuals is becoming larger. One potential solution that would keep these individuals active and independent is the use of mobility assist devices. These devices are designed to reduce the energy demand of the user with the use of electric motors providing torques at joints of the lower limb. Although promising, these devices have a problem: they become uncomfortable after prolonged usage. This is especially true for devices designed to produce substantial assistance. The research goal consisted of quantifying the performance of the physical interfaces, or points of attachments, of an experimental device with multiple interface adjustments. The device was fabricated with design criteria similar to active assist devices to simulate the mechanical behaviour of these particular devices. This analysis provided design recommendations that could ultimately enhance the performance of assist devices available on the market and thus the quality of life of many individuals. This research used force mapping and motion capture to quantify the kinetic and the kinematic compatibility of the device. Experimental results have shown that the position, shape and other parameters of the interfaces had an effect on the relative movement of the brace, or the brace performance. The device interface migration was greater when the interfaces were positioned furthest away form the joint. An increasing level of assistance showed more relative movement between the brace and the user. Interface geometry had a noticeable effect on force distribution over the interface. The results and methodology of this research offers an in depth understanding of the mechanical behavior of the physical interfaces of the developed assist device. Nevertheless, further research and development in the field of human machine interactions are needed in order to develop a physical human-machine interface that will ensure the success of powered assist devices in the future.
Subjects/Keywords: Assist Device;
Motion capture;
Force mapping;
Physical interface;
pHRI;
Knee orthosis
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Levesque, L. D. B. (2018). Experimental Evaluation and Characterization of a Mobility Assist Device Physical Interface
. (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/37365
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Levesque, Laurent De B. “Experimental Evaluation and Characterization of a Mobility Assist Device Physical Interface
.” 2018. Thesis, University of Ottawa. Accessed April 14, 2021.
http://hdl.handle.net/10393/37365.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Levesque, Laurent De B. “Experimental Evaluation and Characterization of a Mobility Assist Device Physical Interface
.” 2018. Web. 14 Apr 2021.
Vancouver:
Levesque LDB. Experimental Evaluation and Characterization of a Mobility Assist Device Physical Interface
. [Internet] [Thesis]. University of Ottawa; 2018. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/10393/37365.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Levesque LDB. Experimental Evaluation and Characterization of a Mobility Assist Device Physical Interface
. [Thesis]. University of Ottawa; 2018. Available from: http://hdl.handle.net/10393/37365
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Delft University of Technology
17.
van Leijsen, P.M. (author).
Application of mechanical metamaterials in a parametric, 3D printed ankle foot orthosis.
Degree: 2020, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:656fd81e-98fd-460f-8a14-e90483c78b1c
► During this project the possibilities of enriching the functionality of an Ankle Foot Orthosis (AFO) by implementing mechanical metamaterials are researched. The project is executed…
(more)
▼ During this project the possibilities of enriching the functionality of an Ankle Foot Orthosis (AFO) by implementing mechanical metamaterials are researched. The project is executed for Buchrnhornen, a company based in Eindhoven which has over 70 years of experience in manufacturing orthopaedic shoes and orthosis in a traditional way. Mechanical metamaterials are artificial structures with mechanical properties defined by their structure rather than their composition. They consist of rationally designed unit cells with unique mechanical properties. The project focusses on replacing the hinges and stops used in a traditional AFO to block plantar or dorsal flexion by a mechanical metamaterial structure which could achieve the same mechanical functioning. A digital program in Grasshopper (Rhino plug-in) is developed which generates a design space based on an input scan of the patients lower leg. The design space is split up in different parts based on the mechanical requirements of the specific areas in the AFO. For each design space, a suitable topology infill which meets the mechanical requirement of the area is developed and generated. Through an input which can be defined per generated model, mechanical requirements can be customized per patient. The output of the digital program is a ready to 3D print .stl file. An extensive research on 3D print methods and materials is done in order to find the most suitable method to fabricate the generated model. The best option was found in a Composite Fibre Co-extrusion (CFC) printer which is able to implement carbon fibre in a model. The addition of carbon fibre ensures much stronger prints which are able to resist the high forces which are applied on the AFO. The project is finished with a conceptual model generated through the developed digital program as well as an extensive evaluation and advice on the researched print methods and topologies. To conclude the research, a list of generic findings and recommendations for further development within Buchrnhornen is provided.
Integrated Product Design
Advisors/Committee Members: Doubrovski, E.L. (mentor), Wu, J. (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: Ankle Foot Orthosis; 3D Printing; Additive Manufacturing; mechanical metamaterials; Parametric Design
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
van Leijsen, P. M. (. (2020). Application of mechanical metamaterials in a parametric, 3D printed ankle foot orthosis. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:656fd81e-98fd-460f-8a14-e90483c78b1c
Chicago Manual of Style (16th Edition):
van Leijsen, P M (author). “Application of mechanical metamaterials in a parametric, 3D printed ankle foot orthosis.” 2020. Masters Thesis, Delft University of Technology. Accessed April 14, 2021.
http://resolver.tudelft.nl/uuid:656fd81e-98fd-460f-8a14-e90483c78b1c.
MLA Handbook (7th Edition):
van Leijsen, P M (author). “Application of mechanical metamaterials in a parametric, 3D printed ankle foot orthosis.” 2020. Web. 14 Apr 2021.
Vancouver:
van Leijsen PM(. Application of mechanical metamaterials in a parametric, 3D printed ankle foot orthosis. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Apr 14].
Available from: http://resolver.tudelft.nl/uuid:656fd81e-98fd-460f-8a14-e90483c78b1c.
Council of Science Editors:
van Leijsen PM(. Application of mechanical metamaterials in a parametric, 3D printed ankle foot orthosis. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:656fd81e-98fd-460f-8a14-e90483c78b1c
Delft University of Technology
18.
Dingemanse, Donald (author).
A tailor-made hand orthosis for patients with ALS to support eating and drinking independently: A helping hand during dining.
Degree: 2020, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:e9eacae4-5053-4f23-a072-82d9c681b916
► Introduction This project is about designing a tailor-made hand orthosis for hand support of patients with Amyotrophic Lateral Sclerosis (ALS) -Limb onset to increase independence…
(more)
▼ Introduction This project is about designing a tailor-made hand
orthosis for hand support of patients with Amyotrophic Lateral Sclerosis (ALS) -Limb onset to increase independence during desired activities. According to the National Institute of Neurological Disorders and Stroke (2014), ALS, is a progressive neurodegenerative disease which attacks motor neurons in the brain and spinal cord. This results in the wasting away of muscles, by which they are weakened. Patients gradually lose the ability to move, speak, swallow, and, eventually, to breathe unaided within an average of two to four years after the onset of the symptoms (Andersen, P. M., Abrahams, S., Borasio, G. D., de Carvalho, M., Chio, A., Van Damme, P., Weber, M. (2012). Discover According to the ALS Association (n.d.), ALS limb onset starts with distal muscle weakness (further away from the heart) and gradually move in the proximal direction (closer to the heart). This means that in most cases, finger strength is lost before weakness in the wrist appears, which is followed by loss of power in the arm. This study starts by evaluating if an arm balancing exoskeleton contributes to performing activities of daily living (ALDs) for ALS patients. However, not being able to control hand movement causes patients not being able to perform essential ALDs. An arm exoskeleton which lacks hand support will not contribute. Prominent problem Patients become highly dependent on the care of informal caregivers and assistive aids, which is emotionally and mentally burdensome for both. When patients can perform small tasks like ADLs themselves with assistive aids, it will contribute to the level of independence and unburden the informal caregivers. This study aims to investigate the most prominent problems occurring in the daily life of patients by interviewing four patients. It is found that patients primary prefer to complete dining activities independently because of alleviating their informal caregivers and avoiding home care during these valued times. Develop Based on this insight, exploration research is done to find the best way on how to support ALS patients during dining activities. The activity is detailly analysed by dividing dining into smaller actions, which presents the underlying problems. This shows that grasping objects is the first problem which limits patients. A second study compares the applicability of three types of hand support which solve grasp failure: active (dynamic) support, hybrid support, and static support are researched. These supports are discussed with patients and medical experts. The type of support which is operated by patients in the simplest way regarding basic movements and straightforward controlling is chosen to continue for further development. ALS patients can longer operate this type of support, and use this assistive aid immediately without long learning time. Deliver A tailor-made static hand
orthosis is developed, which provides independence to ALS patients during dining activities. By…
Advisors/Committee Members: Oberdorf, Jos (mentor), Ruiter, Anna (graduation committee), Klap, Paulien (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: Hand; Orthosis; Exoskeleton; amyotrophic lateral sclerosis; tailor made
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Dingemanse, D. (. (2020). A tailor-made hand orthosis for patients with ALS to support eating and drinking independently: A helping hand during dining. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:e9eacae4-5053-4f23-a072-82d9c681b916
Chicago Manual of Style (16th Edition):
Dingemanse, Donald (author). “A tailor-made hand orthosis for patients with ALS to support eating and drinking independently: A helping hand during dining.” 2020. Masters Thesis, Delft University of Technology. Accessed April 14, 2021.
http://resolver.tudelft.nl/uuid:e9eacae4-5053-4f23-a072-82d9c681b916.
MLA Handbook (7th Edition):
Dingemanse, Donald (author). “A tailor-made hand orthosis for patients with ALS to support eating and drinking independently: A helping hand during dining.” 2020. Web. 14 Apr 2021.
Vancouver:
Dingemanse D(. A tailor-made hand orthosis for patients with ALS to support eating and drinking independently: A helping hand during dining. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Apr 14].
Available from: http://resolver.tudelft.nl/uuid:e9eacae4-5053-4f23-a072-82d9c681b916.
Council of Science Editors:
Dingemanse D(. A tailor-made hand orthosis for patients with ALS to support eating and drinking independently: A helping hand during dining. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:e9eacae4-5053-4f23-a072-82d9c681b916
University of Washington
19.
Pepin, Nathan Richard.
Hindfoot Kinematics of Healthy Subjects Using Lateral Wedge Insoles in a Biplane Fluoroscopy System.
Degree: 2016, University of Washington
URL: http://hdl.handle.net/1773/37189
► Lateral wedge insoles (LWIs) are a type of orthosis used to reduce the external knee adduction moment (EKAM), which is associated with the development and…
(more)
▼ Lateral wedge insoles (LWIs) are a type of
orthosis used to reduce the external knee adduction moment (EKAM), which is associated with the development and progression of tibiofemoral osteoarthritis. However, their effect on kinematics at the hindfoot is unclear. Biplane fluoroscopy was utilized to measure the kinematics of the tibia, talus, and calcaneus, for a pilot study to demonstrate the feasibility of data collection and analysis. To motivate the study, a literature review of LWIs was first performed, including discussion of EKAM, hindfoot moment, dose response, pain scores and more. A LabVIEW Real-Time system was implemented to upgrade the biplane system to add stance phase timing and additional features. Three subjects were studied in the biplane system with four insole conditions. The calcaneus tended to dorsiflex and invert as stance phase progressed. This study demonstrated that the protocol and data analysis are viable and more subjects can be analyzed.
Advisors/Committee Members: Ledoux, William (advisor).
Subjects/Keywords: Biomechanics; EKAM; Fluoroscopy; Gait; Orthosis; Mechanical engineering; mechanical engineering
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Pepin, N. R. (2016). Hindfoot Kinematics of Healthy Subjects Using Lateral Wedge Insoles in a Biplane Fluoroscopy System. (Thesis). University of Washington. Retrieved from http://hdl.handle.net/1773/37189
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Pepin, Nathan Richard. “Hindfoot Kinematics of Healthy Subjects Using Lateral Wedge Insoles in a Biplane Fluoroscopy System.” 2016. Thesis, University of Washington. Accessed April 14, 2021.
http://hdl.handle.net/1773/37189.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Pepin, Nathan Richard. “Hindfoot Kinematics of Healthy Subjects Using Lateral Wedge Insoles in a Biplane Fluoroscopy System.” 2016. Web. 14 Apr 2021.
Vancouver:
Pepin NR. Hindfoot Kinematics of Healthy Subjects Using Lateral Wedge Insoles in a Biplane Fluoroscopy System. [Internet] [Thesis]. University of Washington; 2016. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1773/37189.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Pepin NR. Hindfoot Kinematics of Healthy Subjects Using Lateral Wedge Insoles in a Biplane Fluoroscopy System. [Thesis]. University of Washington; 2016. Available from: http://hdl.handle.net/1773/37189
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Delft University of Technology
20.
Dijkstra, Timo Johannes (author).
Hands can: Determining the location and range of motion of digital joints in 3D scans.
Degree: 2018, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:11bd3b93-e47c-4eb7-8d2d-9b7a0dc34962
► The versatility of the hands is revealed in its movements, but often not noticed before trauma occurs. Joint range of motion is used as a…
(more)
▼ The versatility of the hands is revealed in its movements, but often not noticed before trauma occurs. Joint range of motion is used as a measure to follow the progress of diseases. A digital workflow for 3D data in medical appliances is envisioned for years. The aim of this research is to develop a method that reliably and reproducability determine the range of motion of the digits. In current practice, the angles are measured using a goniometer. This method is very imprecise. Three methods to determine the location of joints in 3D hand scans can be distinguished: using heuristics, computer vision, and deep learning. Of those, deep learning is the most flexible, modern and accurate method and is therefore applied. The end result is a matrix containing the range of motion per joint and is applied to anatomically correctly manipulate a 3D model. For ease of manipulation, a physical manipulator is proposed. The results of this novel method show lower interrater differences than measurements with a goniometer.
Curatio
Integrated Product Design | Medisign
Advisors/Committee Members: Geraedts, Jo (mentor), Wu, Jun (graduation committee), van der Zwan, Pieter (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: Splint; 3D scan; Orthosis; Deep learning; 3D print; Arduino
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Dijkstra, T. J. (. (2018). Hands can: Determining the location and range of motion of digital joints in 3D scans. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:11bd3b93-e47c-4eb7-8d2d-9b7a0dc34962
Chicago Manual of Style (16th Edition):
Dijkstra, Timo Johannes (author). “Hands can: Determining the location and range of motion of digital joints in 3D scans.” 2018. Masters Thesis, Delft University of Technology. Accessed April 14, 2021.
http://resolver.tudelft.nl/uuid:11bd3b93-e47c-4eb7-8d2d-9b7a0dc34962.
MLA Handbook (7th Edition):
Dijkstra, Timo Johannes (author). “Hands can: Determining the location and range of motion of digital joints in 3D scans.” 2018. Web. 14 Apr 2021.
Vancouver:
Dijkstra TJ(. Hands can: Determining the location and range of motion of digital joints in 3D scans. [Internet] [Masters thesis]. Delft University of Technology; 2018. [cited 2021 Apr 14].
Available from: http://resolver.tudelft.nl/uuid:11bd3b93-e47c-4eb7-8d2d-9b7a0dc34962.
Council of Science Editors:
Dijkstra TJ(. Hands can: Determining the location and range of motion of digital joints in 3D scans. [Masters Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:11bd3b93-e47c-4eb7-8d2d-9b7a0dc34962
Delft University of Technology
21.
Raedts, Patrick (author).
Design of an assistive cycling ankle-foot orthosis for Charcot-Marie-Tooth patients.
Degree: 2018, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:94859d64-4966-4d37-89fb-2c61a01a5c6f
► This master thesis elaborates on the development of a assistive cycling ankle-foot orthosis for Charcot-Marie-Tooth patients. Study the influence of assistive torque on the kinematic…
(more)
▼ This master thesis elaborates on the development of a assistive cycling ankle-foot orthosis for Charcot-Marie-Tooth patients. Study the influence of assistive torque on the kinematic analysis of the knee and ankle joints of a CMT patient on an ergometer bike.
Medisign
Advisors/Committee Members: Rusak, Zoltan (mentor), van Breemen, Ernest (mentor), Delft University of Technology (degree granting institution).
Subjects/Keywords: Active Ankle Foot Orthosis; AFO; Cycling; Charcot-Marie-Tooth; CMT
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Raedts, P. (. (2018). Design of an assistive cycling ankle-foot orthosis for Charcot-Marie-Tooth patients. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:94859d64-4966-4d37-89fb-2c61a01a5c6f
Chicago Manual of Style (16th Edition):
Raedts, Patrick (author). “Design of an assistive cycling ankle-foot orthosis for Charcot-Marie-Tooth patients.” 2018. Masters Thesis, Delft University of Technology. Accessed April 14, 2021.
http://resolver.tudelft.nl/uuid:94859d64-4966-4d37-89fb-2c61a01a5c6f.
MLA Handbook (7th Edition):
Raedts, Patrick (author). “Design of an assistive cycling ankle-foot orthosis for Charcot-Marie-Tooth patients.” 2018. Web. 14 Apr 2021.
Vancouver:
Raedts P(. Design of an assistive cycling ankle-foot orthosis for Charcot-Marie-Tooth patients. [Internet] [Masters thesis]. Delft University of Technology; 2018. [cited 2021 Apr 14].
Available from: http://resolver.tudelft.nl/uuid:94859d64-4966-4d37-89fb-2c61a01a5c6f.
Council of Science Editors:
Raedts P(. Design of an assistive cycling ankle-foot orthosis for Charcot-Marie-Tooth patients. [Masters Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:94859d64-4966-4d37-89fb-2c61a01a5c6f
University of Minnesota
22.
Anderson, Rachel.
Design of A Variable-Stiffness Ankle-Foot Orthosis Emulator.
Degree: M.S.M.E., Mechanical Engineering, 2020, University of Minnesota
URL: http://hdl.handle.net/11299/216780
► Ankle-foot orthoses (AFOs) are passive devices used to improve gait in children with cerebral palsy. They are characterized by a torsional stiffness and ankle neutral…
(more)
▼ Ankle-foot orthoses (AFOs) are passive devices used to improve gait in children with cerebral palsy. They are characterized by a torsional stiffness and ankle neutral angle. For this project, a lightweight ankle exoskeleton was designed to emulate the spring-like behavior of a traditional AFO for a wide range in torsional stiffnesses and neutral angles. This was achieved by utilizing the principles of a cantilever beam to generate a desired stiffness profile and lightweight hydraulics to transmit forces from a power source worn at the waist to the device at the ankle. The proposed device was evaluated using FEA and CAD modeling and met most design requirements. The next stage of design evaluation will involve a physical prototype before the final product is implemented in a clinical trial at Gillette Children’s Specialty Healthcare.
Subjects/Keywords: AFO; ankle-foot; exoskeleton; joint; orthosis; variable-stiffness
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Anderson, R. (2020). Design of A Variable-Stiffness Ankle-Foot Orthosis Emulator. (Masters Thesis). University of Minnesota. Retrieved from http://hdl.handle.net/11299/216780
Chicago Manual of Style (16th Edition):
Anderson, Rachel. “Design of A Variable-Stiffness Ankle-Foot Orthosis Emulator.” 2020. Masters Thesis, University of Minnesota. Accessed April 14, 2021.
http://hdl.handle.net/11299/216780.
MLA Handbook (7th Edition):
Anderson, Rachel. “Design of A Variable-Stiffness Ankle-Foot Orthosis Emulator.” 2020. Web. 14 Apr 2021.
Vancouver:
Anderson R. Design of A Variable-Stiffness Ankle-Foot Orthosis Emulator. [Internet] [Masters thesis]. University of Minnesota; 2020. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/11299/216780.
Council of Science Editors:
Anderson R. Design of A Variable-Stiffness Ankle-Foot Orthosis Emulator. [Masters Thesis]. University of Minnesota; 2020. Available from: http://hdl.handle.net/11299/216780
University of Ottawa
23.
Li, Wentao.
Development and Evaluation of a Quick Release Posterior Strut Ankle Foot Orthosis.
Degree: MASc, Génie / Engineering, 2020, University of Ottawa
URL: http://dx.doi.org/10.20381/ruor-25630
► Ankle foot orthosis (AFO) stiffness affects ankle range of motion but can also provide energy storage and return to improve mobility. To perform multiple activities…
(more)
▼ Ankle foot
orthosis (AFO) stiffness affects ankle range of motion but can also provide energy storage and return to improve mobility. To perform multiple activities during the day, a person may want to change their AFO stiffness to meet their activity’s demand. Carrying multiple AFO and changing the AFO is inconvenient and could discourage users from engaging in multiple activities. This thesis developed a new quick-release mechanism (QRM) that allows users to easily change posterior strut elements to change AFO stiffness. The QRM attaches to the AFO and requires no tools to operate. The new QRM includes a quick-release key, weight-bearing pin, receptacle anchor, and immobilization pin. A prototype was modelled with SolidWorks and simulated with SolidWorks Simulation. The QRM was designed to have no mechanical failure during intense activities such as downhill walking and running. Unlike a solid screw connection, the QRM needed an additional part to eliminate unsecured motion related to clearance between the quick release key and receptacle anchor. Mechanical test results and measurement data demonstrated no deformation on each part after mechanical testing. User testing revealed that, although the quick release mechanism can be locked or unlocked rapidly, the person’s posture when operating can facilitate strut swapping. A learning effect occurred by repeated practice. The Quick Release AFO (QRAFO) prototype verified the manufacturing feasibility of the QRAFO design. Overall, the novel quick release AFO improved strut swapping time without sacrificing device strength.
Advisors/Committee Members: Baddour, Natalie (supervisor), Lemaire, Edward (supervisor).
Subjects/Keywords: quick-release; posterior strut; Ankle foot orthosis; modular
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Li, W. (2020). Development and Evaluation of a Quick Release Posterior Strut Ankle Foot Orthosis. (Masters Thesis). University of Ottawa. Retrieved from http://dx.doi.org/10.20381/ruor-25630
Chicago Manual of Style (16th Edition):
Li, Wentao. “Development and Evaluation of a Quick Release Posterior Strut Ankle Foot Orthosis.” 2020. Masters Thesis, University of Ottawa. Accessed April 14, 2021.
http://dx.doi.org/10.20381/ruor-25630.
MLA Handbook (7th Edition):
Li, Wentao. “Development and Evaluation of a Quick Release Posterior Strut Ankle Foot Orthosis.” 2020. Web. 14 Apr 2021.
Vancouver:
Li W. Development and Evaluation of a Quick Release Posterior Strut Ankle Foot Orthosis. [Internet] [Masters thesis]. University of Ottawa; 2020. [cited 2021 Apr 14].
Available from: http://dx.doi.org/10.20381/ruor-25630.
Council of Science Editors:
Li W. Development and Evaluation of a Quick Release Posterior Strut Ankle Foot Orthosis. [Masters Thesis]. University of Ottawa; 2020. Available from: http://dx.doi.org/10.20381/ruor-25630
University of Illinois – Urbana-Champaign
24.
Farooq, Deen S.
Modifications and upper extremity orthotics for the Lofstrand crutch.
Degree: MS, Mechanical Engineering, 2015, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/88952
► According to the latest National Institute on Disability and Rehabilitation Research (NIDRR) Mobility Device Report, there are an estimated 566,000 persons who use crutches in…
(more)
▼ According to the latest National Institute on Disability and Rehabilitation Research (NIDRR) Mobility Device Report, there are an estimated 566,000 persons who use crutches in the US. During Lofstrand crutch mobility, irregular loads are placed upon the upper extremities during quadrupedal gait. During self-load bearing while walking with Lofstrand crutches, the arms can experience periodic loads every 1 s of up to 50% of body weight for durations as short as 340 ms. Excessive loads and motion of the wrist increase chances for carpal tunnel syndrome. Lofstrand crutch users would clearly benefit by having these upper extremity demands reallocated or supported by an
orthosis to allow for longer-term ambulation, reduction in pain, and injury avoidance.
This thesis contains two studies: the design of a passive
orthosis for Lofstrand crutch gait, and the use of a pneumatic pump as an energy harvesting device. An orthotic attachment for the Lofstrand crutch was developed, in order to reduce wrist extension and redirect loads from the carpal tunnel region on the palm and toward the adductor pollicis. Pressure sensors were used at the handle of the crutch to locate and measure loads, while motion capture was used to calculate joint angles. Results show a decrease in the average force and mean pressure across a Lofstrand crutch handle when using the
orthosis, although peak palmar pressures may be greater with the
orthosis. Palmar load displacement toward the adductor pollicis was achieved.
There is motivation to extend this work by using soft robotic technology, which will be powered pneumatically. Therefore, a preliminary design for a pneumatic harvesting device that can accumulate pressure throughout the gait cycle was created and assessed. The harvesting device was a piston attached to the tip of the crutch. When compressed, the device stores the pneumatic energy into an accumulator. Data were collected using a pressure transducer. A mathematical model of pressure in the accumulator was developed in order to predict accumulated pressure as a function of effective volume of the piston and dead volume in the system. The model simulation results were compared to experimental values and ranged from 3.79-15.53 percent error. A second custom piston design to achieve higher stroke volume is also presented.
Advisors/Committee Members: Hsiao-Wecksler, Elizabeth T. (advisor).
Subjects/Keywords: crutch; orthosis; orthoses; orthotic; lofstrand; forearm; wrist; piston; accumulator; ergonomic
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Farooq, D. S. (2015). Modifications and upper extremity orthotics for the Lofstrand crutch. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/88952
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Farooq, Deen S. “Modifications and upper extremity orthotics for the Lofstrand crutch.” 2015. Thesis, University of Illinois – Urbana-Champaign. Accessed April 14, 2021.
http://hdl.handle.net/2142/88952.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Farooq, Deen S. “Modifications and upper extremity orthotics for the Lofstrand crutch.” 2015. Web. 14 Apr 2021.
Vancouver:
Farooq DS. Modifications and upper extremity orthotics for the Lofstrand crutch. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2015. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/2142/88952.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Farooq DS. Modifications and upper extremity orthotics for the Lofstrand crutch. [Thesis]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/88952
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Minnesota
25.
Kim, Jeong Yong.
The Application of Series Elastic Actuators in the Hydraulic Ankle-Foot Orthosis.
Degree: M.S.M.E., Mechanical Engineering, 2017, University of Minnesota
URL: http://hdl.handle.net/11299/191268
► Advances in wearable technology have been trending toward more powerful and lightweight devices. A type of wearable device that fits into this trend is the…
(more)
▼ Advances in wearable technology have been trending toward more powerful and lightweight devices. A type of wearable device that fits into this trend is the Ankle-Foot Orthosis (AFO), which is a device that restrains or strengthens the movement of an ankle to assist the user during gait. A powered AFO uses an actuator and power supply to add positive power to the ankle but becomes heavier as the power output increases. To address the high power requirement and the need for a lightweight design, a hydraulic series elastic actuator (HSEA) was explored to determine whether it could be used to design a lightweight powered AFO that meets the high peak power demand of gait. Hydraulic power has excellent power density and the ability to lower the weight of the AFO at the ankle by separating the power supply from the actuator by a hose. In addition, a series elastic actuator can take advantages of the high-peak and low-average power profile of ankle gait to store energy and release it during the push off stage of gait. The parameters required for the series elastic actuator were calculated and validated using simulation. The velocity and torque of a gait pattern that requires 250W of peak power were able to be tracked using a 95W power supply. The actuator and power supply overall weight was reduced by 20% with the weight of the actuator at the ankle less than 0.5 kg. A novel design of a HSEA with a clutch capability is proposed for future AFO applications.
Subjects/Keywords: Ankle-Foot Orthosis; Hydrualic Series Elastic Actuator; Series Elastic Actuator
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kim, J. Y. (2017). The Application of Series Elastic Actuators in the Hydraulic Ankle-Foot Orthosis. (Masters Thesis). University of Minnesota. Retrieved from http://hdl.handle.net/11299/191268
Chicago Manual of Style (16th Edition):
Kim, Jeong Yong. “The Application of Series Elastic Actuators in the Hydraulic Ankle-Foot Orthosis.” 2017. Masters Thesis, University of Minnesota. Accessed April 14, 2021.
http://hdl.handle.net/11299/191268.
MLA Handbook (7th Edition):
Kim, Jeong Yong. “The Application of Series Elastic Actuators in the Hydraulic Ankle-Foot Orthosis.” 2017. Web. 14 Apr 2021.
Vancouver:
Kim JY. The Application of Series Elastic Actuators in the Hydraulic Ankle-Foot Orthosis. [Internet] [Masters thesis]. University of Minnesota; 2017. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/11299/191268.
Council of Science Editors:
Kim JY. The Application of Series Elastic Actuators in the Hydraulic Ankle-Foot Orthosis. [Masters Thesis]. University of Minnesota; 2017. Available from: http://hdl.handle.net/11299/191268
University of Minnesota
26.
Xia, Jicheng.
Modeling and Analysis of Small-Scale Hydraulic Systems.
Degree: PhD, Mechanical Engineering, 2015, University of Minnesota
URL: http://hdl.handle.net/11299/191306
► OBJECTIVE To determine the scaling law and design guidelines of small-scale hydraulic systems whose output power is in the range of 10 to 100 Watts.…
(more)
▼ OBJECTIVE To determine the scaling law and design guidelines of small-scale hydraulic systems whose output power is in the range of 10 to 100 Watts. METHODS Fundamental fluid mechanics equations were employed to model the friction and leakage losses in the hydraulic components including cylinders, hoses, and pumps. Basic structural design equations were deployed to predict their weight. Customized test stands were built to validate the efficiency models, and catalog data of o-the-shelf components was compiled to validate the weight models. The electro-mechanical components including electric motors, gear heads and batteries were modeled using their catalog data. RESULTS The efficiency and the weight of both hydraulic and electro-mechanical components were modeled in analytical forms. These models were validated against either experimental data or existing catalog data. CONCLUSION The analytical models suggested the following design guidelines: first, high operating pressure is needed for hydraulic actuation systems to weigh lighter than equivalent electro-mechanical systems; second, critical dimension thresholds exist for hydraulic and electro-mechanical components, which should not be exceeded to achieve reasonable system efficiency; third, component efficiency plays a more important role than component weight to gain higher system power density; lastly, for applications where the actuator system weight matters the most, high pressure small scale hydraulic systems are preferred over electro-mechanical systems, but for applications where the overall system weight matters the most, electro-mechanical systems work better.
Subjects/Keywords: afo; ankle foot orthosis; hydraulics; modeling; small-scale; tiny
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Xia, J. (2015). Modeling and Analysis of Small-Scale Hydraulic Systems. (Doctoral Dissertation). University of Minnesota. Retrieved from http://hdl.handle.net/11299/191306
Chicago Manual of Style (16th Edition):
Xia, Jicheng. “Modeling and Analysis of Small-Scale Hydraulic Systems.” 2015. Doctoral Dissertation, University of Minnesota. Accessed April 14, 2021.
http://hdl.handle.net/11299/191306.
MLA Handbook (7th Edition):
Xia, Jicheng. “Modeling and Analysis of Small-Scale Hydraulic Systems.” 2015. Web. 14 Apr 2021.
Vancouver:
Xia J. Modeling and Analysis of Small-Scale Hydraulic Systems. [Internet] [Doctoral dissertation]. University of Minnesota; 2015. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/11299/191306.
Council of Science Editors:
Xia J. Modeling and Analysis of Small-Scale Hydraulic Systems. [Doctoral Dissertation]. University of Minnesota; 2015. Available from: http://hdl.handle.net/11299/191306
University of Minnesota
27.
Yu, Chih-Huang.
The Efficacy of a Forearm Rotation Orthosis for Persons with a Hemiparetic Arm.
Degree: PhD, Rehabilitation Science, 2018, University of Minnesota
URL: http://hdl.handle.net/11299/200284
► Objectives. To examine the efficacy of a dynamic forearm rotation orthosis used as the sole intervention and in combination with the Occupational Therapy Task-Oriented (OTTO)…
(more)
▼ Objectives. To examine the efficacy of a dynamic forearm rotation orthosis used as the sole intervention and in combination with the Occupational Therapy Task-Oriented (OTTO) approach as well as to evaluate the efficacy of the OTTO approach on the functional performance of persons post-stroke with a hemiparetic arm. Method. A matched, randomized, two- group, single-blinded, repeated measures designed was used. Volunteer sample of persons with chronic stroke (N=14) were first matched on motor function and then randomly assigned to Group A or B. Group A (N=8) experienced six weeks of orthotic intervention followed by six weeks of orthosis plus OTTO intervention (3 hour/week for 6 weeks). Group B (N=6) experience no treatment for six weeks followed by another six weeks of OTTO intervention. The primary outcome measures were functional performance, including self-perceived performance and satisfaction (Canadian Occupational Performance Measure (COPM)), motor function (Wolf Motor Function Test (WMFT)), and self-reported use of the affected limb (Motor Activity Log (MAL)). The secondary outcome measures were impairments, including active range of motion and strength of the upper extremity, grip, and pinch. Participants were evaluated before and after each intervention phase. Results. No significant differences were found between participants who received orthotic intervention and those who had no treatment. By the end of study, participants who receive the OTTO intervention as the sole intervention and in combination with orthosis showed clinically important improvements in self-perceived performance and satisfaction on the COPM and statistical significant improvement in self-report amount and quality of use of the affected limb on the MAL. No significant differences in functional performance and impairment measures were found between participants who received the OTTO intervention as the sole intervention and in combination with the orthosis. Conclusions. The 6 weeks of functional training protocol provided clinically important benefits to persons post-stroke in self-perceived functional performance (COPM), but not in motor function (WMFT) and impairment measures (active ROM and strength of UE, grip, and pinch). However, due to technical failure for monitoring adherence to orthotic use, the efficacy of the forearm rotation orthosis for persons post-stroke remains unclear.
Subjects/Keywords: CVA; Functional Training; Occupational Therapy; Orthosis; Stroke; Task-Oriented
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Yu, C. (2018). The Efficacy of a Forearm Rotation Orthosis for Persons with a Hemiparetic Arm. (Doctoral Dissertation). University of Minnesota. Retrieved from http://hdl.handle.net/11299/200284
Chicago Manual of Style (16th Edition):
Yu, Chih-Huang. “The Efficacy of a Forearm Rotation Orthosis for Persons with a Hemiparetic Arm.” 2018. Doctoral Dissertation, University of Minnesota. Accessed April 14, 2021.
http://hdl.handle.net/11299/200284.
MLA Handbook (7th Edition):
Yu, Chih-Huang. “The Efficacy of a Forearm Rotation Orthosis for Persons with a Hemiparetic Arm.” 2018. Web. 14 Apr 2021.
Vancouver:
Yu C. The Efficacy of a Forearm Rotation Orthosis for Persons with a Hemiparetic Arm. [Internet] [Doctoral dissertation]. University of Minnesota; 2018. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/11299/200284.
Council of Science Editors:
Yu C. The Efficacy of a Forearm Rotation Orthosis for Persons with a Hemiparetic Arm. [Doctoral Dissertation]. University of Minnesota; 2018. Available from: http://hdl.handle.net/11299/200284
Brno University of Technology
28.
Haasová, Nikola.
Design vnÄ›jÅ¡Ãch krytů aktivnà loketnà ortézy: Design of Cover Parts of Elbow Brace.
Degree: 2019, Brno University of Technology
URL: http://hdl.handle.net/11012/20935
► The topic of my bachelor´s thesis is the analysis and design of cover parts of elbow brace. Design has fulfill general condition of industrial design,…
(more)
▼ The topic of my bachelor´s thesis is the analysis and design of cover parts of elbow brace. Design has fulfill general condition of industrial design, especially technical, aesthetic and ergonomic requirements. The aim is to create a comprehensive concept that should evoke a contemporary appearance to improve physical and mental well-being of a patient with injuries of the elbow. Emphasis is placed on therapeutic effect and the whole concept should reflect the social and psychological functions.
Advisors/Committee Members: Křenek, Ladislav (advisor), Buganská, Tamara (referee).
Subjects/Keywords: ortopedická protetika; ortotika; ortéza; design; orthopedic prosthetics; orthotics; brace (orthosis); design
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Haasová, N. (2019). Design vnÄ›jÅ¡Ãch krytů aktivnà loketnà ortézy: Design of Cover Parts of Elbow Brace. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/20935
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Haasová, Nikola. “Design vnÄ›jÅ¡Ãch krytů aktivnà loketnà ortézy: Design of Cover Parts of Elbow Brace.” 2019. Thesis, Brno University of Technology. Accessed April 14, 2021.
http://hdl.handle.net/11012/20935.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Haasová, Nikola. “Design vnÄ›jÅ¡Ãch krytů aktivnà loketnà ortézy: Design of Cover Parts of Elbow Brace.” 2019. Web. 14 Apr 2021.
Vancouver:
Haasová N. Design vnÄ›jÅ¡Ãch krytů aktivnà loketnà ortézy: Design of Cover Parts of Elbow Brace. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/11012/20935.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Haasová N. Design vnÄ›jÅ¡Ãch krytů aktivnà loketnà ortézy: Design of Cover Parts of Elbow Brace. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/20935
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
29.
Simonds, Emily.
Design and prototyping of a granular foot orthosis (FootGO).
Degree: MS, Mechanical Engineering, 2017, Georgia Tech
URL: http://hdl.handle.net/1853/60133
► Granular media was utilized in combination with negative pressure to create a variable stiffness granular foot orthosis (FootGO). To develop the FootGO insole, a complete…
(more)
▼ Granular media was utilized in combination with negative pressure to create a variable stiffness granular foot
orthosis (FootGO). To develop the FootGO insole, a complete design process was employed, from requirements evaluation and morphological analyses to iterative mockup fabrication. Three types of granular media (rice, poppy seeds, and polystyrene beads) were used in different prototype configurations. The compositions were varied based on volume fill, particulate size, and granular media type. I conducted a series of uniaxial compression tests on a selection of commercial orthotic foams as well as the FootGO prototypes, and obtained stress-strain curves from these data. The stress-strain curves were examined for basic material behavior trends that corresponded to increasing strain rate and stiffness. Most of the prototypes complied with these trends; those that did not were deemed unsuitable for application in a foot
orthosis. Then, the energy absorption for each specimen, both foam and prototype, was determined by numerical integration. The foams reached their failure points within the testing period while the FootGO did not, which indicates that the FootGO has superior durability with respect to strain. The range of energy absorption performance for each FootGO prototype was compared to the range for commercial foams. The various negative pressure settings for the FootGO exhibited energy absorption values that spanned the foam performance range, some of them even extending well beyond the upper limit of that range. This supports my hypothesis that varying the negative pressure applied to the granular media within the FootGO produces corresponding adjustable stiffness values that mimic the impact absorption characteristics of a wide range of orthotic materials.
Advisors/Committee Members: Chang, Young-Hui (advisor), Kogler, Geza (committee member), Colton, Jonathan (committee member).
Subjects/Keywords: Granular jamming; Foot orthosis
…Foot Granular Orthosis
ASTM
American Society for Testing and Materials
CAD
Computer Aided… …orthosis (FootGO). To develop the FootGO insole, a complete design
process was employed… …orthosis.
Then, the energy absorption for each specimen, both foam and prototype, was determined… …pathologies while maximizing
comfort for the user (5). A custom-fitted orthosis refers to… …an orthosis that starts as a prefabricated
specimen that is then trimmed, molded, or…
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Simonds, E. (2017). Design and prototyping of a granular foot orthosis (FootGO). (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/60133
Chicago Manual of Style (16th Edition):
Simonds, Emily. “Design and prototyping of a granular foot orthosis (FootGO).” 2017. Masters Thesis, Georgia Tech. Accessed April 14, 2021.
http://hdl.handle.net/1853/60133.
MLA Handbook (7th Edition):
Simonds, Emily. “Design and prototyping of a granular foot orthosis (FootGO).” 2017. Web. 14 Apr 2021.
Vancouver:
Simonds E. Design and prototyping of a granular foot orthosis (FootGO). [Internet] [Masters thesis]. Georgia Tech; 2017. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1853/60133.
Council of Science Editors:
Simonds E. Design and prototyping of a granular foot orthosis (FootGO). [Masters Thesis]. Georgia Tech; 2017. Available from: http://hdl.handle.net/1853/60133
University of Waterloo
30.
Mistry, Taresh D.
Design Feasibility of an Active Ankle-Foot Stabilizer.
Degree: 2010, University of Waterloo
URL: http://hdl.handle.net/10012/5412
► Walking is the most common form of mobility in humans. For lower limb mobility impairments, a common treatment is to prescribe an ankle-foot orthosis (AFO)…
(more)
▼ Walking is the most common form of mobility in humans. For lower limb mobility impairments, a common treatment is to prescribe an ankle-foot orthosis (AFO) or brace, which is a passive device designed to resist undesired ankle-foot motion. Recent advances in actuator technology have led to the development of active AFOs (AAFOs). However, these devices are generally too bulky for everyday use and are limited to applications such as gait training for rehabilitation. The aim of this research was to investigate the feasibility of developing a novel Active Ankle-Foot Stabilizer (AAFS). The design criteria were mainly based on the strengths and limitations of existing AFOs. The sagittal plane functional requirements were determined using simulated gait data for elderly individuals and drop foot patients; however, it is intended that the device would be suitable for a wider range of disabilities including ankle sprains. A model of the foot was introduced to modify the moment of a deficient ankle where young healthy adult kinematics and kinetics were assumed. A moment deficit analysis was performed for different gait periods resulting in an AAFS model with two components: a linear rotational spring to modify the ankle joint rotational stiffness, and a torque source. The frontal plane functional requirements for the AAFS were modeled as a linear rotational spring which responded to particular gait events. A novel Variable Rotational Stiffness Actuator (VSRA) AFO was also investigated. It consisted of an actuated spring medial and lateral to the ankle to control sagittal plane ankle stiffness and a passive leafspring posterior to the ankle to control frontal plane ankle stiffness. Due to high forces and profile limitations, a spring and rotation actuator that satisfied the design criteria could not be developed, resulting in an infeasible design. Considering the high forces and moments required by the AAFS, a pneumatic approach was adopted. A novel Airbeam AFO, which consisted of a shank cuff and a foot plate to which airbeams were attached proximally and distally to the ankle, was examined. The joint rotational stiffness of the ankle would be controlled by the inflation of these individual cylindrical airbeams. To satisfy the functional requirements, the airbeam diameters and pressures were too large to meet the design criteria and were unrealistic for a portable device. Finally, a Pneumatic Sock AFO, which proved to best satisfy the functional requirements within the design criteria, was examined. The design consisted of an inner sock worn on the ankle, surrounded by anterior, posterior, medial, and lateral bladders which inflate against outer fabric shells. Although promising, the Pneumatic Sock AFO requires further investigation in regards to manufacturing and behaviour characterization before a functional prototype can be developed. Mechanical test methods to characterize the behaviour of the Pneumatic Sock AFO in the sagittal and frontal planes were developed including the control components required, the configuration…
Subjects/Keywords: ankle-foot orthosis; gait; biomechanics
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mistry, T. D. (2010). Design Feasibility of an Active Ankle-Foot Stabilizer. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/5412
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Mistry, Taresh D. “Design Feasibility of an Active Ankle-Foot Stabilizer.” 2010. Thesis, University of Waterloo. Accessed April 14, 2021.
http://hdl.handle.net/10012/5412.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mistry, Taresh D. “Design Feasibility of an Active Ankle-Foot Stabilizer.” 2010. Web. 14 Apr 2021.
Vancouver:
Mistry TD. Design Feasibility of an Active Ankle-Foot Stabilizer. [Internet] [Thesis]. University of Waterloo; 2010. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/10012/5412.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mistry TD. Design Feasibility of an Active Ankle-Foot Stabilizer. [Thesis]. University of Waterloo; 2010. Available from: http://hdl.handle.net/10012/5412
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
◁ [1] [2] [3] [4] [5] ▶
. 
Open Access Theses and Dissertations
