Length adjusting device and laser treatment handle

Abstract

The invention relates to the technical field of lasers, and particularly discloses a length adjusting device and a laser treatment handle. In the length adjusting device, a first connecting piece is provided with a first channel; one end of the second connecting piece penetrates through the first channel, the second connecting piece is rotated with first force, and when the first connecting piece and the second connecting piece rotate relatively, the other end of the second connecting piece is far away from or close to the first connecting piece; one of the clamping groove and the clamping assembly is arranged on the first connecting piece, and the other one is arranged on the second connecting piece; the extending direction of the clamping groove is the same as that of the first channel; when the clamping assembly is clamped in the clamping groove, the second connecting piece is rotated with second force, the first connecting piece and the second connecting piece can rotate relatively to drive the clamping assembly to be separated from the clamping groove, and the second force is larger than the first force. According to the arrangement, the distance between the other end of the second connecting piece and the first connecting piece can be adjusted, so that the laser focal length can be adjusted, and the treatment head is prevented from being replaced when pathological tissues with different depths are treated.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to a length adjusting device and a laser treatment handle. Background technique [0002] In the laser beauty industry, laser treatment handles can achieve the purpose of treating patients' tissues, such as honeycomb lattice handles and DOE diffraction handles of picosecond laser treatment equipment. The purpose of this kind of handle is to disperse and focus the large spot parallel beam output by the laser into multiple smaller micro-beams in a lattice. In this way, a smaller wound surface can be treated and the laser energy can be more concentrated. [0003] A treatment head is installed at the end of the laser treatment handle. The end face of the treatment head is also called the treatment surface, which is in direct contact with the patient's skin. Because each micro-beam emitted from the handle is a converging light, the focus position and focal length are fixed, so changing ...

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the method of replacing treatment heads of different lengths is that the number of treatment heads is large, the replacement is troublesome, easy to lose, and the adjustment range is discontinuous, and there are only several fixed treatment depths corresponding to the treatment heads. If you want to increase the treatment depth, It is necessary to increase the number of treatment heads

The disadvantage of only one length of treatment head is that the treatment depth is fixed, which cannot meet the clinical needs of treating skin lesions with different depths.

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