Patent ID: 6461349
Filing Date: 2002-10-08
Classification: A61B,G02B

Abstract:
A medical handpiece for transmitting energy from a laser beam into biological tissue comprising:an optical fiber for conveying the laser radiation; a light guide for radiating the laser energy into the tissue; and a suction cannula for the biological tissue that is comminuted by the action of the energy and in which the light guide extends; said optical fiber, light guide and suction cannula being provided in a base body; for purposes of alignment of the optical axis of the light guide with respect to the longitudinal axis of the suction cannula as well as with respect to the optical axis of the radiation-side end of the fiber, at least one adjusting face being allocated in each instance to the light guide, the suction cannula and the fiber so as to be fixed in place; at least one of the adjusting faces assigned to the light guide corresponding with an adjusting face assigned to the suction cannula and with an adjusting face assigned to the fiber, and said light guide being displaceable in the axial direction relative to the suction cannula; and wherein the alignment can be produced or canceled depending on the displacement direction; and wherein an adjusting face is assigned to the light guide via an adjusting piece, which is fixedly connected with the light guide, stops provided for limiting axial displacement of the light guide and the stops are formed as stop faces vertical to the radiation direction, and at least one stop face is fixed with respect to the light guide and one stop face is fixed with respect to the suction cannula.