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

fYear

1997

fDate

1997

Firstpage

219

Lastpage

224

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Micromechatronics and Human Science, 1997. Proceedings of the 1997 International Symposium on

Conference_Location

Nagoya

Print_ISBN

0-7803-4171-6

Type

conf

DOI

10.1109/MHS.1997.768883

Filename

768883