Full Content is available to subscribers

Subscribe/Learn More  >

Endoscopic End-Effector for Foreign Body Retrieval Using Shape Memory Alloy

[+] Author Affiliations
Evan Harris, Justin Buksa, Allan Schuster, Tim Kowalewski, Julianna Abel

University of Minnesota, Minneapolis, MN

Paper No. DMD2019-3303, pp. V001T06A013; 4 pages
  • 2019 Design of Medical Devices Conference
  • 2019 Design of Medical Devices Conference
  • Minneapolis, Minnesota, USA, April 15–18, 2019
  • ISBN: 978-0-7918-4103-7
  • Copyright © 2019 by ASME


Foreign body retrieval is potentially needed when a patient ingests foreign objects; while many of these will pass naturally, intervention may be required. The retrieval process can be done endoscopically or surgically. This paper covers the novel use of shape memory alloy to assist in endoscopic foreign body removal. Six closure methods were constructed and tested for percentage contraction. These ranged from linear actuation and memorized simple shapes to shape-set springs. Of these closure methods, a spring based architecture yielded the greatest percentage contraction but tangled during the contraction process. The design presented in this paper will enable faster and less invasive gastroenterological foreign body retrieval from the stomach.

Copyright © 2019 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In