Title :
Shape memory alloy bending actuator for catheter with movable link and guide wires
Author :
Kim, Myoung-Soon ; Lee, Seung-Ki ; Lee, Sang-Hoon
Author_Institution :
Biomed. Lab., Dankook Univ., Seoul, South Korea
Abstract :
This paper proposes two kinds of novel bending actuator using three links, two shape memory alloy coil-type springs and guide wires. One is a macro model for one directional bending actuator, the other is a micro model for two directional bending actuator. By heating the two shape memory alloy coil-type springs sequentially, bending and stretching motion of the actuator is possible. The performance of the actuator has been characterized for the possible application to catheters
Keywords :
bending; biomedical equipment; intelligent actuators; microactuators; shape memory effects; active catheter application; bending angle; coil-type springs; macro model; micro model; microactuator; movable link and guide wires; one directional bending actuator; performance; sequential heating; shape memory alloy bending actuator; stretching motion; three links; two directional bending actuator; two shape memory alloys; Actuators; Catheters; Educational institutions; Force measurement; Laboratories; Resistance heating; Shape control; Shape memory alloys; Springs; Wire;
Conference_Titel :
Micromechatronics and Human Science, 1997. Proceedings of the 1997 International Symposium on
Conference_Location :
Nagoya
Print_ISBN :
0-7803-4171-6
DOI :
10.1109/MHS.1997.768883
