Replaceable laser and array thereof

Abstract

The invention provides a replaceable laser and an array thereof. The replaceable laser is formed by casings, which are internally provided with laser elements and have uniform shapes and uniform electrical interfaces, and a case for clamping the casings. Power supply and parameter control of the laser elements are realized through cylindrical projections with tilt angle on the casings and a buckleplate and electrical interfaces in cylindrical through slots, and the cylindrical projections with tilt angle and the cylindrical through slots can realize precise positioning of the casings and thecase; and when the laser element in a different wavelength needs to be replaced, one only needs to pull the casing out of the case and replace the casing with another casing that contains a laser capable of emitting different-wavelength laser, thereby greatly reducing the difficulty of medical staffs in laser wavelength switching and improving popularization rate of laser treatment equipment in the medical field. According to the replaceable laser array, casings with different wavelength can be replaced in each case; and multiple cases can be connected with a variety of wavelength switching devices to achieve selective output of the wavelength.

Description

technical field [0001] The invention belongs to the field of laser medical equipment, and in particular relates to a replaceable laser and an array thereof for photodynamic therapy. Background technique [0002] Photodynamic therapy (Photodynamic Therapy, PDT) is a new technology that uses photodynamic effect for disease diagnosis and treatment. Its basis is the photodynamic effect. The photodynamic effect is a photosensitization reaction accompanied by biological effects involving oxygen molecules. The process is that the photosensitizer absorbed by the tissue is excited by the laser irradiation of a specific wavelength, and the photosensitizer in the excited state transfers energy to the surrounding oxygen to generate highly active singlet oxygen, and the singlet oxygen and adjacent biological Oxidation of macromolecules produces cytotoxicity, which in turn leads to cell damage and even death. Compared with traditional therapy, photodynamic therapy has the advantages of...

AI Technical Summary

Problems solved by technology

For photodynamic therapy, there are many types of photosensitizers and applicable diseases, and new photosensitizers are constantly being launched on the market. Ordinary medical staff who do not have laser knowledge often change lasers and laser wavelengths. Unsure of what to do or easy to make mistakes

[0004] Moreover, the structure of the laser is complex, the price is high, and the steps of use are cumbersome, especially the lasers used in the existing photodynamic therapy instruments are all semiconductor lasers, and the inside of the laser not only needs to be powered by an external power supply, but also needs to be adjusted for power, wavelength, etc. For the control of various parameters such as adjustment and pulse adjustment, there are many electrical external power supply devices and parameter control devices, which must rely on multiple external power connectors for communication. A little carelessness will cause connection errors, which makes medical staff and medical staff use medical lasers. In particular, there is a fear of replacement, which seriously hinders the popularization and promotion of laser therapy equipment in medical treatment.

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