12 July 1994 State of the art of CO laser angioplasty system
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A unique percutaneous transluminal coronary angioplasty system new IR therapy laser with IR glass fiber delivery under novel angioscope guidance was described. Carbon monoxide (CO) laser emission of 5 mm in wavelength was employed as therapy laser to achieve precise ablation of atheromatous plaque with a flexible As-S IR glass fiber for laser delivery. We developed the first medical CO laser as well as As-S IR glass fiber cable. We also developed 5.5 Fr. thin angioscope catheter with complete directional manipulatability at its tip. The system control unit could manage to prevent failure irradiations and fiber damages. This novel angioplasty system was evaluated by a stenosis model of mongrel dogs. We demonstrated the usefulness of our system to overcome current issues on laser angioplasty using multifiber catheter with over-the-guidewire system.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tsunenori Arai, Kyoichi Mizuno, Akira Miyamoto, Masami Sakurada, Makoto Kikuchi, Akira Kurita, Haruo Nakamura, Hidetsugu Takaoka, Atsushi Utsumi, Kiyoshi Takeuchi, "State of the art of CO laser angioplasty system", Proc. SPIE 2130, Diagnostic and Therapeutic Cardiovascular Interventions IV, (12 July 1994); doi: 10.1117/12.179919; https://doi.org/10.1117/12.179919

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