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Retractable Anti-Buckling Support Systems for Flexible Medical Devices

[+] Author Affiliations
Brandon S. Sargent, Spencer P. Magleby, Brian D. Jensen, Larry L. Howell

Brigham Young University, Provo, UT

Paper No. DETC2018-86056, pp. V05AT07A015; 9 pages
doi:10.1115/DETC2018-86056
From:
  • ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5A: 42nd Mechanisms and Robotics Conference
  • Quebec City, Quebec, Canada, August 26–29, 2018
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5180-7
  • Copyright © 2018 by ASME

abstract

This work presents two novel support systems used to help mitigate flexible device buckling during insertion such as the insertion of medical device into the body. These systems are collapsible to accommodate the changing length of the flexible device as it is inserted. They use tension in wires or geometry to provide systems with lateral stiffness used to support the device. Through modeling, the performance of these systems can be predicted and they can be designed to a desired performance. This was validated in the geometry-based support system. They provide systems with small operating volumes and part counts.

Copyright © 2018 by ASME

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