Laser therapy hand tool with adjustable spot size

Abstract

The invention relates to a laser therapy hand tool with the adjustable spot size. The laser therapy hand tool is characterized in that a tail seat is fixed on a body, an annular circuit board is fixed on the tail seat, and an optocoupler for detecting positions is arranged on the circuit board. A protection cover is fixed on the body, and a ball is arranged on the protection cover and supported by a compression spring. A hand wheel is fixed on the body and rotates around the body. A set of holes used for positioning and two light-transmitting notches are formed in the hand wheel. The hand wheel is fixed with the cam. The cam drives a lens barrel in an inner hole of the body to move, a positive lens is fixed in the lens barrel, a negative lens is fixed on the body, a protective lens is arranged at the front end of the negative lens, and a sleeve provided with a fairing is arranged on the front portion of the body. The laser therapy hand tool is reasonable in structure and convenient to use. A contactless position device is adopted to utilize conduction and cut-off of a C section and an E section of an optocoupler of the contactless position device to replace the binary system state of a switch, due to the fact that contact of contact points does not exist, the service life of the laser therapy hand tool is long.

Description

technical field [0001] The invention relates to a laser therapy hand tool with adjustable light spot size, which belongs to an optical therapy device. Background technique [0002] The laser treatment handpiece is a key component. The output of the laser is transmitted to the diseased tissue through the treatment handpiece to achieve the purpose of treatment. At the same time, the laser spot size and energy density must be precisely controlled, so as to achieve the treatment of different lesions. . [0003] During the operation, the operator usually uses different spot sizes in one treatment process to complete the treatment. Therefore, the treatment hand tool should have the function of adjusting the spot size. When the energy is constant, the energy density will also be adjusted accordingly. In most cases, this change will cause the energy density to be unsuitable for therapeutic applications, and even cause safety hazards. This requires the operator of the equipment to m...

AI Technical Summary

Problems solved by technology

[0005] Most of the current laser treatment hand tools do not have linkage functions, that is, the hand tools need to be adjusted, and the corresponding values ​​need to be manually input or adjusted. The operation is cumbersome, and it is easy to make mistakes.

[0006] At present, the hand tools with linkage function rely on brushes / contacts to detect the gear position. The two metal parts need to be in close contact and often make relative movements, which are prone to problems such as wear and poor contact.

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