TY - GEN
T1 - Intravascular micro active catheter for minimal invasive surgery
AU - Chang, Jun Keun
AU - Chung, Seok
AU - Lee, Yongku
AU - Park, Junha
AU - Lee, Seung Ki
AU - Yang, Sang Sik
AU - Moon, Shin Yong
AU - Han, Dong Chul
N1 - Publisher Copyright:
© 2000 IEEE.
PY - 2000
Y1 - 2000
N2 - We have developed an intravascular micro active catheter system for microsurgery in human vascular systems, such as cerebrovascular and coronary Artery. Also this system can be applied to laparoscopical treatment. It consists of the micro active bending catheter and some functional catheters the former is a tube-like catheter to have an outer-diameter of 3.0 mm, inner-diameter of 2.0 mm and length of 1,000 mm. Inner hole of it is a pathway for the functional catheters, such as conventional guide wire, balloon catheter, conventional suction tube, micro ultrasound probe catheter, fiber optics (angioscope), angioplatic devices and drug injection lines. This active bending catheter is actuated with three SMA (shapememory-alloy) zigzag type springs. SMA wires are connected with plastic and brass connection links. This actuator can be bent to any direction with the PWM controlled electric current. We also developed a micro drug infusion catheter and micro ultrasound probe catheter fit to the inner hole of active bending catheter. All of these systems were evaluated with the human mock circulation system. They can be introduced through 90°, 120°, 180° crooked branches to the brachiocephalic artery, common carotid artery, subclavian artery and so on in the mock circulation system. Also we in vivo tested this endoscope system in the laparoscopical surgery of the pig. We could easily induce the catheter to the point we want in the pig ovary.
AB - We have developed an intravascular micro active catheter system for microsurgery in human vascular systems, such as cerebrovascular and coronary Artery. Also this system can be applied to laparoscopical treatment. It consists of the micro active bending catheter and some functional catheters the former is a tube-like catheter to have an outer-diameter of 3.0 mm, inner-diameter of 2.0 mm and length of 1,000 mm. Inner hole of it is a pathway for the functional catheters, such as conventional guide wire, balloon catheter, conventional suction tube, micro ultrasound probe catheter, fiber optics (angioscope), angioplatic devices and drug injection lines. This active bending catheter is actuated with three SMA (shapememory-alloy) zigzag type springs. SMA wires are connected with plastic and brass connection links. This actuator can be bent to any direction with the PWM controlled electric current. We also developed a micro drug infusion catheter and micro ultrasound probe catheter fit to the inner hole of active bending catheter. All of these systems were evaluated with the human mock circulation system. They can be introduced through 90°, 120°, 180° crooked branches to the brachiocephalic artery, common carotid artery, subclavian artery and so on in the mock circulation system. Also we in vivo tested this endoscope system in the laparoscopical surgery of the pig. We could easily induce the catheter to the point we want in the pig ovary.
UR - http://www.scopus.com/inward/record.url?scp=63149163875&partnerID=8YFLogxK
U2 - 10.1109/MMB.2000.893781
DO - 10.1109/MMB.2000.893781
M3 - Conference contribution
AN - SCOPUS:63149163875
T3 - 1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology - Proceedings
SP - 243
EP - 246
BT - 1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology - Proceedings
A2 - Dittmar, Andre
A2 - Beebe, David
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology, MMB 2000
Y2 - 12 October 2000 through 14 October 2000
ER -