Longitudinally-steerable structure and endoscope comprising...

Details Longitudinally-steerable structure and endoscope comprising... Longitudinally-steerable structure and endoscope comprising...

2011-04-05

2011-04-05

Kasztejna, Matthew J (Department: 3779)

Surgery

Endoscope

Having flexible tube structure

C600S151000, C348S076000

Reexamination Certificate

active

07918789

ABSTRACT:
The invention relates to a longitudinally-steerable structure, comprising essentially longitudinal actuators made from shape memory alloy, Peltier effect elements with N and P doping and electrical control device. The above is characterized in that the actuators are arranged in pairs in an antagonistic manner, each actuator being connected at the ends thereof with a Peltier effect element with N doping and a Peltier effect element with P doping respectively. The invention further relates to an endoscope comprising at least one such structure.

REFERENCES:
patent: 4543090 (1985-09-01), McCoy
patent: 5588295 (1996-12-01), Brotz
patent: 2000135288 (2000-05-01), None
Abadie et al. “An integrated shape memory alloy micro-actuator controlled by thermoelectric effect.” 2002. Sensors and Actuators A, vol. 99. pp. 297-303.

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