Intravascular micro active catheter for minimal invasive surgery

Jun Keun Chang, Seok Chung, Yongku Lee, Junha Park, Seung Ki Lee, Sang Sik Yang, Shin Yong Moon, Dong Chul Han

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publication1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology - Proceedings
EditorsAndre Dittmar, David Beebe
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages243-246
Number of pages4
ISBN (Electronic)0780366034, 9780780366039
DOIs
Publication statusPublished - 2000
Event1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology, MMB 2000 - Lyon, France
Duration: 2000 Oct 122000 Oct 14

Publication series

Name1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology - Proceedings

Other

Other1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology, MMB 2000
CountryFrance
CityLyon
Period00/10/1200/10/14

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Chang, J. K., Chung, S., Lee, Y., Park, J., Lee, S. K., Yang, S. S., Moon, S. Y., & Han, D. C. (2000). Intravascular micro active catheter for minimal invasive surgery. In A. Dittmar, & D. Beebe (Eds.), 1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology - Proceedings (pp. 243-246). [893781] (1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MMB.2000.893781