Double wave-length laser therapeutic apparatus

Abstract

A dual-wavelength laser therapy apparatus has the Er:YAG laser system and the Nd:YAG laser system for outputting the 2940 nm and 1064 nm laser beams, which are transmitted via a single optical fibre made of sapphire or fluoride glass. Its laser cutting function has high gasifying speed, resulting in high staltic effect.

Description

technical field

[0001] The present invention relates to laser medical equipment. Background technique

[0002] In recent years, the application of solid-state laser in medical treatment has made great progress. Many early solid-state laser medical machines were basically doped with Nd: 3+ Laser crystals are used as laser working substances to produce near-infrared wavelength lasers, such as: 1064nm, 1079nm, 1319nm, 1338nm, 1341nm, etc.

[0003] It is well known that the cutting efficiency of tissue can be improved and thermal damage can be reduced by applying near-infrared wavelength close to the water absorption peak in biological tissue. Recently, many research institutes are studying doped Er: 3+ The application of laser produced by laser crystal in medical treatment. Er: Er in YAG crystal 3+ ion from 4 I 11 / 2 state to 4 I 11 / 3 transition, producing 2940nm laser radiation. Since the 2940nm wavelength coincides with the maximum absorption peak of water in biologi...

Examples

Embodiment Construction

[0016] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0017] In the accompanying drawings, 1 is Er:YAG crystal, one end of the crystal is coated with a highly reflective dielectric film with a wavelength of 2940nm, and the other end of the crystal is used as the output end of the laser to be coated with a partially reflective dielectric film with a wavelength of 2940nm; 2 is a xenon lamp or krypton for pumping lamp, 3 is a filter tube to filter out the ultraviolet radiation of the pump lamp, 4 is a tight-packed elliptical or circular condenser cavity, 5 is a red laser diode with the same optical path as the laser, 6 is a self-circulating cooling device, 7 is The power supply can be continuously increased from 0 to 1200 volts, and the working frequency is adjustable from 1 to 50 Hz. The pulse switching power supply, 8 is Nd:YAG crystal, 9 is a dielectric mirror that fully reflects the 1064nm laser wavelength, and...

technical field

[0001] The present invention relates to laser medical equipment. Background technique

[0002] In recent years, the application of solid-state laser in medical treatment has made great progress. Many early solid-state laser medical machines were basically doped with Nd: 3+ Laser crystals are used as laser working substances to produce near-infrared wavelength lasers, such as: 1064nm, 1079nm, 1319nm, 1338nm, 1341nm, etc.

[0003] It is well known that the cutting efficiency of tissue can be improved and thermal damage can be reduced by applying near-infrared wavelength close to the water absorption peak in biological tissue. Recently, many research institutes are studying doped Er: 3+ The application of laser produced by laser crystal in medical treatment. Er: Er in YAG crystal 3+ ion from 4 I 11 / 2 state to 4 I 11 / 3 transition, producing 2940nm laser radiation. Since the 2940nm wavelength coincides with the maximum absorption peak of water in biologi...

Examples

Embodiment Construction

[0016] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0017] In the accompanying drawings, 1 is Er:YAG crystal, one end of the crystal is coated with a highly reflective dielectric film with a wavelength of 2940nm, and the other end of the crystal is used as the output end of the laser to be coated with a partially reflective dielectric film with a wavelength of 2940nm; 2 is a xenon lamp or krypton for pumping lamp, 3 is a filter tube to filter out the ultraviolet radiation of the pump lamp, 4 is a tight-packed elliptical or circular condenser cavity, 5 is a red laser diode with the same optical path as the laser, 6 is a self-circulating cooling device, 7 is The power supply can be continuously increased from 0 to 1200 volts, and the working frequency is adjustable from 1 to 50 Hz. The pulse switching power supply, 8 is Nd:YAG crystal, 9 is a dielectric mirror that fully reflects the 1064nm laser wavelength, and...

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