PURPOSE: To provide an inexpensive and safe laser knife tip by forming the tip into non-hollow type using a sodium chloride crystal, regarding a laser knife tip mounted on the tip end of a handpiece and designed to receive a laser 'beam at one end and emit the beam from the other end. CONSTITUTION: A laser knife tip 1 is formed to be non-hollow type, using a sodium chloride crystal harmless to a human body, and a large diameter section thereof is mounted on a handpiece 2. Also, a laser beam is emitted from a small diameter section of the tapered end. Furthermore, an articulated manipulator or a fiber cable is connected to the joint section 3 of the handpiece 2. A laser beam is introduced into the handpiece 2, and received with the large diameter section of the tip 1. Then, the laser beam is emitted from the small diameter section of the tapered end. As a result, a soot generated at the time of irradiating the laser beam does not enter a hollow section, and irradiation efficiency for the laser beam can be improved, accelerated by Fx high laser beam transmission efficiency of the sodium chloride crystal itself.
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