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.
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ASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
September 29–October 2, 2002
Montreal, Quebec, Canada
Conference Sponsors:
- Design Engineering Division and Computers and Information in Engineering Division
ISBN:
0-7918-3653-3
PROCEEDINGS PAPER
Development of Steerable Endoscopes to Improve Depth Perception During Laparoscopic Surgery Available to Purchase
Paul Breedveld,
Paul Breedveld
Delft University of Technology, Delft, The Netherlands
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Shigeo Hirose
Shigeo Hirose
Tokyo Institute of Technology, Tokyo, Japan
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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
Published Online:
June 18, 2008
Citation
Breedveld, P, & Hirose, S. "Development of Steerable Endoscopes to Improve Depth Perception During Laparoscopic Surgery." Proceedings of the 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. pp. 731-736. ASME. https://doi.org/10.1115/DETC2002/MECH-34283
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