A Polymer Driveshaft for use in Orbital and Rotational Atherectomy
2016-01
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A Polymer Driveshaft for use in Orbital and Rotational Atherectomy
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2016-01
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Driveshafts used in atherectomy medical devices are often comprised of coiled or braided metal wires. These constructions are designed to tolerate delivery through tortuous vessels and can endure high speed rotation used during activation of the atherectomy treatment. This research investigated polymer driveshaft designs, which were comprised of polymer inner and outer layers, and coiled or braided stainless steel wires. The polymer driveshaft materials included polyimide, nylon 12, and polytetrafluoroethylene (PTFE). Mechanical testing of polymer driveshafts was conducted to determine material response in bending, tension, compression, and torsion. The polymer driveshaft test results were then compared with current coiled metal wire driveshaft constructions. The investigation identified polymer driveshaft options that could feasibly work in an atherectomy application.
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University of Minnesota M.S.Mat.S.E. thesis. January 2016. Major: Material Science and Engineering. Advisor: Russell Holmes. 1 computer file (PDF); iii, 29 pages.
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Grothe, Preston. (2016). A Polymer Driveshaft for use in Orbital and Rotational Atherectomy. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/178908.
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