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You searched for id:"oai:ir.lib.uwo.ca:etd-6744". One record found.

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University of Western Ontario

1. Tripp, Dave BP. Force Sensing Surgical Grasper with Folding Capacitive Sensor.

Degree: 2017, University of Western Ontario

Minimally-invasive surgery (MIS) has brought many benefits to the operating room, however, MIS procedures result in an absence of force feedback, and surgeons cannot as accurately feel the tissue they are working on, or the forces that they are applying. One of the barriers to introducing MIS instruments with force feedback systems is the high cost of manufacturing and assembly. Instruments must also be sterilized before every use, a process that can destroy embedded sensing systems. An instrument that can be disposed of after a single use and produced in bulk at a low cost is desirable. Printed circuit micro-electro-mechanical systems (PCMEMS) is an emerging manufacturing technology that may represent an economically viable method of bulk manufacturing small, single-use medical devices, including surgical graspers. This thesis presents the design and realization of a PCMEMS surgical grasper that can fit within a 5 mm trocar, and can accurately measure forces in 3 axes, over a range of +/-4 N. The designed instrument is the first PCMEMS grasper to feature multi-axis sensing, and has a sensing range twice as large as current PCMEMS devices. Experimental results suggest that the performance of the sensing system is similar to conventionally-manufactured MIS instruments that use capacitive force transducers. The techniques applied in this thesis may be useful for developing a range of PCMEMS devices with capacitive sensors. Improvements to the design of the grasper and sensing system are suggested, and several points are presented to inform the direction of future work related to PCMEMS MIS instruments.

Subjects/Keywords: minimally-invasive surgery; design; low-cost; force sensing; disposable; PCMEMS; Biomedical; Biomedical Devices and Instrumentation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Tripp, D. B. (2017). Force Sensing Surgical Grasper with Folding Capacitive Sensor. (Thesis). University of Western Ontario. Retrieved from http://ir.lib.uwo.ca/etd/4854

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):

Tripp, Dave BP. “Force Sensing Surgical Grasper with Folding Capacitive Sensor.” 2017. Thesis, University of Western Ontario. Accessed September 20, 2017. http://ir.lib.uwo.ca/etd/4854.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Tripp, Dave BP. “Force Sensing Surgical Grasper with Folding Capacitive Sensor.” 2017. Web. 20 Sep 2017.

Vancouver:

Tripp DB. Force Sensing Surgical Grasper with Folding Capacitive Sensor. [Internet] [Thesis]. University of Western Ontario; 2017. [cited 2017 Sep 20]. Available from: http://ir.lib.uwo.ca/etd/4854.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tripp DB. Force Sensing Surgical Grasper with Folding Capacitive Sensor. [Thesis]. University of Western Ontario; 2017. Available from: http://ir.lib.uwo.ca/etd/4854

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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