[Study on an actuation system for matrix control of the active catheter in a minimally-invasive intervention surgery].
As it is impossible for an active catheter with a very small space to accommodate overmany lead wires in minimally-invasive surgery, a matrix network system is presented, in this paper, to control SMA actuators using minimum lead wires. Pulse current is adjusted by pulse width modulation (PWM) signals from the single-chip processor. In addition, multiple SMA actuators' cooperation helps the active catheter to succeed in guiding motion.
Fu
Yi-li
YL
Advanced Manufacturing Technology Center, Harbin Institute of Technology, Harbin.
Ma
Hui-hui
HH
Li
Xian-ling
XL
D000497:Alloys; D002404:Catheterization / Q000295:instrumentation*; D004867:Equipment Design; D019060:Minimally Invasive Surgical Procedures / Q000295:instrumentation*
D000497:Alloys