Abstract

The medical CO laser has been expected to be the most useful therapy laser because of its excellent ablation capability for atheromatous lesions and fiber delivery capability by means of the chalcogenide glass fiber. We developed the transportable medical CO laser system with user-friendly and fail-safe design for the therapy. The typical wavelength of the CO laser is 5.4μm and its maximum output laser power is 10 watts. The laser power emitted at the end of the laser cable can be controlled at the desired value of between 1 to 3 watts. The dimensions of the system are 140cm in height, 65cm in width, and 75cm in depth. It is compact enough to be accepted on the actual clinical scene. The transportability of the system was well examined.In vivo animal experiment showed good results (good response yield: 6/7=86%). As another application of the medical CO laser, a thoracospic treatment for spontaneous pneumothorax can be expected. Some of the preliminary clinical experiences showed good results (success yield: 6/8=75%).

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