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JRM Vol.16 No.2 pp. 129-137
doi: 10.20965/jrm.2004.p0129
(2004)

Paper:

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Development of Wide-Angle-View Laparoscope Using Wedge Prisms

Takemasa Hashimoto*, Etsuko Kobayashi*,
Ichiro Sakuma*, Kazuhiko Shinohara**, Makoto Hashizume***,
and Takeyoshi Dohi****

*Graduate School of Frontier Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

**Katayanagi Laboratory, Tokyo University of Technology, 1401-1 Katakura, Hachioji, Tokyo 192-0982, Japan

***Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan

****Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

Received:
October 21, 2003
Accepted:
December 5, 2003
Published:
April 20, 2004
Creative Commons License
Keywords:
laparoscopic surgery, medical robot, minimally invasive surgery, endoscopy
Abstract
We describe a novel robotic laparoscope system. It can be used to observe a wide area without moving or bending the laparoscope. The system consists of an endoscope with zoom facility and two wedge prisms at the tip. This new concept produces excellent characteristics as follows. Firstly, it can change the field of view even in a small space. Secondly, it is safe because it avoids the possibility of hitting internal organs. Finally, because it does not require a large mechanism for manipulation of the endoscope, it does not obstruct the surgeon’s operation. We performed basic characteristics evaluation experiment and in-vivo experiment. During evaluation, we confirmed that the positioning accuracy and image quality were acceptable for clinical use.
Cite this article as:
T. Hashimoto, E. Kobayashi, I. Sakuma, K. Shinohara, M. Hashizume, and T. Dohi, “Development of Wide-Angle-View Laparoscope Using Wedge Prisms,” J. Robot. Mechatron., Vol.16 No.2, pp. 129-137, 2004.
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