title: [Study on an actuation system for matrix control of the active catheter in a minimally-invasive intervention surgery].
abstract: 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.
authors.affiliation: Advanced Manufacturing Technology Center, Harbin Institute of Technology, Harbin.
authors.forename: Yi-li
authors.initials: YL
authors.lastname: Fu
authors.forename: Hui-hui
authors.initials: HH
authors.lastname: Ma
authors.forename: Xian-ling
authors.initials: XL
authors.lastname: Li
mesh_terms: D000497:Alloys; D002404:Catheterization / Q000295:instrumentation*; D004867:Equipment Design; D019060:Minimally Invasive Surgical Procedures / Q000295:instrumentation*
chemical_list: D000497:Alloys