0

Full Content is available to subscribers

Subscribe/Learn More  >

Development of Steerable Endoscopes to Improve Depth Perception During Laparoscopic Surgery

[+] Author Affiliations
Paul Breedveld

Delft University of Technology, Delft, The Netherlands

Shigeo Hirose

Tokyo Institute of Technology, Tokyo, Japan

Paper No. DETC2002/MECH-34283, pp. 731-736; 6 pages
doi:10.1115/DETC2002/MECH-34283
From:
  • ASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5: 27th Biennial Mechanisms and Robotics Conference
  • Montreal, Quebec, Canada, September 29–October 2, 2002
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 0-7918-3625-3 | eISBN: 0-7918-3603-7
  • Copyright © 2002 by ASME

abstract

Laparoscopic surgery is carried out by using an endoscope with a camera that is inserted through a small incision in the abdominal wall. The camera pictures are presented on a monitor. The movements of the endoscope are limited by the incision point. This results in a restricted ability to observe organs from different sides, which complicates the surgeon’s depth perception. This paper describes the development of two new steerable endoscopes that are the product of a close co-operation between the Man-Machine Systems Group of the Delft University of Technology and the Hirose & Yoneda Laboratory of the Tokyo Institute of Technology. Both endoscopes contain a new spatial parallelogram-mechanism to transform the handgrip movements into movements of the steerable tip. The handgrips contain an arrow that points always in the direction of the line-of-sight of the tip-camera. This provides intuitive control of the tip, showing how the camera is oriented in the abdominal cavity. The tip-cameras can be moved in six degrees of freedom, thus enabling the surgeon to observe organs from different sides. Part of the parallelogram-mechanism is a new kind of spring that combines high torsion stiffness with a low, asymmetric bending stiffness. The endoscopes and the spring have been applied for two international patents.

Copyright © 2002 by ASME
Topics: Surgery , Endoscopes

Figures

Tables

Interactive Graphics

Video

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

NOTE:
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