Long-pulse green laser vessel therapeutic instrument

Abstract

The invention discloses a long-pulse green laser vessel therapeutic instrument. The long-pulse green laser vessel therapeutic instrument comprises an M1 total reflector, an AO acoustooptic modulator, an Nd:YAG laser crystal, a KTP frequency doubling crystal and an M3 output mirror which are arranged on an optical path in sequence, wherein an M2 middle mirror is arranged between the Nd:YAG laser crystal and the KTP frequency doubling crystal. The long-pulse green laser vessel therapeutic instrument is same as a common vessel therapeutic instrument with a straight cavity (except length), but the long-pulse green laser vessel therapeutic instrument has a foldable double-channel frequency doubling cavity. In addition, the long-pulse green laser vessel therapeutic instrument is suitable for mass production. Because laser oscillation only depends on the two lenses of the M1 total reflector and the M3 output mirror, the long-pulse green laser vessel therapeutic instrument is easily adjusted, and the consistency problem of mass production is solved.

Description

technical field [0001] The invention relates to a laser treatment instrument, in particular to a long-pulse green laser blood vessel treatment instrument. Background technique [0002] Long-pulse green laser therapeutic instrument is an instrument for treating vascular diseases. It can effectively treat vascular lesions such as red blood streaks, port wine stains, hemangiomas, and spider angiomas. Its further application is to carry out research and treatment of laser treatment of varicose veins in human legs and digestive tracts. The energy and stability of the laser directly affect the performance of the whole machine. [0003] At present, there are two types of cavity types of long-pulse green laser therapeutic instruments: [0004] 1. Our current product uses a folding double-pass frequency doubling cavity (see figure 1 As shown), according to literature introduction and own experimental results, the output of the double-pass double-pass cavity is about 15-20% higher ...

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Problems solved by technology

[0004] 1. Our current product uses a folding double-pass frequency doubling cavity (see figure 1 As shown), according to the literature introduction and own experimental results, the output of the double-pass double-pass cavity is about 15-20% higher than that of the ordinary straight cavity, but the disadvantage of the folded double-pass double-pass cavity is that it is difficult to adjust and maintain

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