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Title
Japanese:大腸内視鏡挿入支援を目指したラバーチューブアクチュエータの設計と基礎駆動特性 
English: 
Author
Japanese: 脇元修一, 尾崎 健, 鈴森 康一.  
English: Shuichi Wakimoto, 尾崎 健, Koichi Suzumori.  
Language Japanese 
Journal/Book name
Japanese:日本ロボット学会誌 
English: 
Volume, Number, Page Vol. 29    No. 7    pp. 619-625
Published date Sept. 2011 
Publisher
Japanese:日本ロボット学会 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Abstract Colonoscopy is an important medical action to detect disorders like colon cancer. However generally it is difficult to insert a scope into the colon, because the colon is flexible and complex shape. This study aims at development of an actuator which can add propelling ability to a colonoscope. We focus on rubber pneumatic actuators, because advantages of them, for example, high compliance, low cost, water proof, and so on, agree with the required properties of medical devices. In this paper, we design a novel rubber actuator consisting of three air chambers by nonlinear FEM (finite element method) and fabricate the actuator employing the design by extrusion molding method. Basic characteristics of the actuator are clarified by a motion capture system, and functional motion leading assisting colonoscope insertion is observed. Actually using dummy endoscope, transportation ability by the actuators is confirmed experimentally and insertion experiments into a large intestine phantom are conducted.

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