Laser hot balloon catheter: a novel approach to overcome PTCA defects

Makoto Kikuchi, Tsunenori Arai, Masami Sakurada, Akira Miyamoto, Kyoichi Mizuno, Haruo Nakamura, Atsushi Utsumi, Tamishige Watanabe, Kiyoshi Takeuchi

Research output: Contribution to journalArticlepeer-review


A new type of laser heating PTCA (percutaneous transluminal coronary angioplasty) balloon has been developed which is capable of uniform shallow layer heating around epithelium. The features of this laser hot balloon is rapid increasing and decreasing temperature. Balloon temperature of 60°-70°C has been demonstrated during 15s duration. The in vitro experiment using extracted porcine coronary artery revealed restricted heating layer within artery wall. The low applied pressure to the laser hot balloon induced excellent dilatation of the artery than conventional PTCA. An evaluation of chronic in canine stenosis model developed in the femoral artery showed excellent restenosis-rate reduction by the hot balloon.

Original languageEnglish
Pages (from-to)5-10
Number of pages6
JournalBiomedical Engineering - Applications, Basis and Communications
Issue number1
Publication statusPublished - 1996 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Biophysics
  • Bioengineering
  • Biomedical Engineering


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