冠動脈用先端屈曲機能付レーザー内視鏡の開発

抄録

We have been studied to establish the requirement for the coronary laser endoscope with animal experiment using goats' coronary arteries by developing various coronary laser endoscopes. The purpose of this study was to develop coronary laser endoscope in which the tip had the bending function.
In this study, the laser endoscope with the diameter of 1.7mm which is thought to be applicable to the coronary artery, in which the tip had two directional bending function, was developed. The endoscope was evaluated with goat's carotid artery which was partially occluded with organized thrombus made by the interposition of Gore-Tex artificial graft.
The endoscopic view was very improved with two directional bending function of the tip, and excimer laser could be scanned in line to destruct the thrombus.
More than three directional bending function of the tip is required to improve the scanning ability of laser and is the most important next subject.