DIODE-PUMPED SOLID-STATE LASER DEVICE FOR TREATMENT OF VASCULAR FORMATIONS OF THE SKIN AND SUBCUTANEOUS TISSUE Russian patent published in 2018 - IPC A61N5/00 

FIELD: medical equipment.

SUBSTANCE: invention relates to medical equipment and can be used to treat vascular lesions of the skin and subcutaneous tissue. Solid-state laser device with diode pumping for the treatment of vascular formations of the skin and subcutaneous tissue, laser operating in the yellow-green wavelength range, power supply, emitter with pumping system, control system and a fiber-optic system for transporting laser radiation, wherein the plant further comprises radiation converters in the infrared region of spectrum (1150–1250 nm), second harmonic generator or a total frequency generator for converting radiation into a yellow-green spectral region on nonlinear crystals and a sinusoidal voltage generator, emitter is made in the form of a solid-state laser pumped by a semiconductor diode, consisting of neodymium-containing active element, semitransparent mirror and acoustooptical shutter placed between them, connected to generator of sinusoidal voltages. Active element is made in form of a crystal of yttrium aluminate YAP:Nd³⁺, converter of radiation into the infrared region of the spectrum (1150–1250 nm) is made in the form of a forsterite crystal Mg₂SiO₄:Cr³⁺, installed in the cooling unit, but for transformation of radiation into the second harmonic or into radiation of the total frequency, generator uses nonlinear crystals LBO or KTP or PPLN with angular or temperature rearrangement of the synchronism angle. Solid-state diode-pumped lasers have great advantages over gas and solid-state lasers with lamp pumping.

EFFECT: it can work in different modes of generation, providing high efficiency, have a high stability of radiation at small weight and dimensions parameters, have low power consumption and long service life.

4 cl, 8 dwg