Developed in 2001-2002, diameter 12 mm, steering range: ±125º in all directions.
The Endo-Periscope II has been developed in cooperation with Prof. Shigeo Hirose of the Hirose & Fukushima Laboratory, Tokyo Institute of Technology.
Endo-Periscope II is a simplified, patented version of Endo-Periscope I containing two enhanced compliant Ring Springs to control both left/right and up/down tip rotations. Endo-Periscope II contains an improved spatial parallelogram-mechanism that minimizes bending radius in all positions of the tip. A prominent part of the mechanism is a compression spring in the handgrip that compensates the spring force of the two Ring-Springs.
- Breedveld P., Hirose S. (2004) Design of steerable endoscopes to improve the visual perception of depth during laparoscopic surgery. ASME Journal of Mechanical Design, March 2004, Vol. 126, No. 1, pp. 2-5.
- Breedveld P., Hirose S. (2002). Development of steerable endoscopes to improve depth perception during laparoscopic surgery. Proc. 2002 ASME Design Engineering Technical Conferences & Computers and Information in Engineering Conference, Sept. 29-Oct. 2, Montreal, Canada, Paper DETC2002/MECH-34283.
- Breedveld P., Hirose S. (2002). Development of steerable endoscopes to improve depth perception in laparoscopic surgery. Proc. 10th International Congress of the European Association for Endoscopic Surgery (EAES), June 2-5, Lisbon, Portugal, p. 18.