A micro creeping robot for colonoscopy based on the earthworm

Minimally Invasive Surgery (MIS) has become one of the most important research areas in the field of medical engineering. Robotic colonoscopy is a typical medical procedure that complies with the requirements of MIS. In this paper, a new novel miniature robot for intestinal inspection based on the earthworm is described; its diameter and length are 7.5 mm and 120 mm respectively. The micro robot is driven by a DC motor which has good performance and sufficient power. In this paper the structure and locomotion mechanism of this robot are introduced; the mechanical model is built; and simulation is carried out. The control system and software design are also discussed in detail. Some actuating characteristic experiments have been performed, where the micro robot creeps in declining rubber tubes. The experimental results are in accord with simulation results, and show that this kind of robot can move reliably in horizontal and certain declining tubes. This research has laid a foundation for the application of the miniature robot endoscope.

[1]  Paolo Dario,et al.  Robotic solutions and mechanisms for a semi-autonomous endoscope , 2002, IEEE/RSJ International Conference on Intelligent Robots and Systems.

[2]  A. Lee,et al.  An AC magnetohydrodynamic micropump , 2000 .

[3]  Guan-Xiong Zhou.  Swallowable or implantable body temperature telemeter-body temperature radio pill , 1989, Proceedings of the Fifteenth Annual Northeast Bioengineering Conference.

[4]  Jd Waye,et al.  The development of the swallowable video capsule : M2A , 2000 .

[5]  A. Uchiyama.  Endoradiosonde needs micro machine technology , 1995, MHS'95. Proceedings of the Sixth International Symposium on Micro Machine and Human Science.

[6]  Maria Chiara Carrozza,et al.  The development of a microrobot system for colonoscopy , 1997, CVRMed.

[7]  G. Meron.  The development of the swallowable video capsule (M2A). , 2000, Gastrointestinal endoscopy.

[8]  Dominiek Reynaerts,et al.  Design of miniature parallel manipulators for integration in a self-propelling endoscope , 2000 .

[9]  Paul Swain,et al.  Wireless capsule endoscopy of the small bowel: development, testing, and first human trials , 2001, European Conference on Biomedical Optics.

[10]  Guillaume Thomann,et al.  The design of a new type of micro robot for the intestinal inspection , 2002, IEEE/RSJ International Conference on Intelligent Robots and Systems.

[11]  Yan Guozheng,et al.  A study on the endoscope system driven by squirmy robot , 1997, 1997 IEEE International Conference on Intelligent Processing Systems (Cat. No.97TH8335).

[12]  P. Swain,et al.  Wireless capsule endoscopy. , 2002, The Israel Medical Association journal : IMAJ.

[13]  Maria Chiara Carrozza,et al.  A microrobotic system for colonoscopy , 1997, Proceedings of International Conference on Robotics and Automation.

[14]  Paolo Dario,et al.  An innovative locomotion principle for minirobots moving in the gastrointestinal tract , 2002, Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No.02CH37292).

[15]  Joel W. Burdick,et al.  Biomechanical modeling of the small intestine as required for the design and operation of a robotic endoscope , 2000, Proceedings 2000 ICRA. Millennium Conference. IEEE International Conference on Robotics and Automation. Symposia Proceedings (Cat. No.00CH37065).

[16]  Joel W. Burdick,et al.  The development of a robotic endoscope , 1995, Proceedings 1995 IEEE/RSJ International Conference on Intelligent Robots and Systems. Human Robot Interaction and Cooperative Robots.