Solid double-frequency laser light knife

Abstract

The present invention relates to an all-solid double-frequency laser light knife for operation to cure ametiopia. Said invention is formed from laser, scanning ascillatory mirror controlled by computer and laser output system, and is characterized by adopting solid baser pump, using titanium jewel laser to make gain and utilizing double-frequency crystal two-stage frequency multiplication to output laser whose wavelength is near 208 nm, and transferring said laser into scanning oscillatory mirror. Said invented product is safe, reliable, and good in therapeutic effect, and its stability is greatly raised, its structure is simple and cost is greatly reduced.

Description

technical field [0001] The invention belongs to the improvement of the structure in the medical laser light knife, and relates to the technical field of laser production. Background technique [0002] Refractive errors include myopia, hyperopia and astigmatism, which have caused many inconveniences and obstacles to people in terms of study, further education, employment, work and life. In the past, corrective treatment methods included wearing glasses (including contact lenses) and RK technology (radiotomy); at present, the latest PRK technology is popular in the world, that is, the use of high repetition rate pulsed laser (called light knife) on the cornea of ​​the eye. The anterior surface is "cut" to vaporize it, changing the diopter of the anterior surface of the cornea, thus correcting the refractive error. Due to the predictability, accuracy, safety and reliability of this treatment method, it has been considered as the best treatment method for refractive errors in t...

AI Technical Summary

Problems solved by technology

The equipment originally used an excimer gas laser, using ArF gas, which is a toxic gas that can cause harm to the human body, and needs to be replenished after a period of work, which is a potential threat to patients and doctors

Recently, a new semi-solid laser has been developed, which has been used clinically. It not only overcomes the above problems, but also has a better therapeutic effect than gas lasers; but it also has many problems. It uses a krypton lamp for treatment. The pump, coupled with the frequency doubling in the cavity, has poor long-term working stability, and has high requirements on the temperature and humidity of the surrounding environment. structure becomes very complex

So people are also working hard to find an all-solid-state laser that can match it, but so far there has been no report

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