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Dual wavelength laser therapeutic machine

A dual-wavelength laser, laser treatment technology, applied in medical science, surgery, parts of surgical instruments, etc., can solve problems such as excessive bleeding, infection, and increased pressure in wounds

Inactive Publication Date: 2005-12-07
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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Problems solved by technology

However, the Er:YAG laser has a special biophysical effect: the nature of the interaction of 3 μm radiation with water-saturated biological tissue is equivalent to the instantaneous heating of a limited volume, in which the pressure rises, and the accompanying substances (such as blood) rush out of the incision. out, does not produce blood coagulation, and cannot stop bleeding, which can easily cause excessive bleeding and infection of the wound

Method used

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  • Dual wavelength laser therapeutic machine

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Embodiment Construction

[0014] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0015] In the accompanying drawings, 1 is Er:YAG crystal, 2 is a xenon lamp or a krypton lamp for pumping, 3 is a filter tube for filtering out the ultraviolet radiation of the pump lamp, 4 is a tight-packed elliptical or circular concentrating cavity, and 5 is A semiconductor laser with an emission wavelength of 645-990nm, 6 is a self-circulating cooling device, 7 is a power supply, which can be a switching power supply that can be continuously increased from 0 to 1200 volts, and whose operating frequency is adjustable at 1-50 Hz, or can be an output current from 0 continuously increases to 30 amps of continuous power, 8 is a coupling converging lens, which is characterized by the use of sapphire crystals with high transmittance for 2940nm and 645-990nm light, and 9 is a fluoride glass fiber with low loss for 500nm-4000nm light .

[0016] After starting th...

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Abstract

The invention relates to a dual wavelength laser therapy apparatus in the field of laser medical apparatus which comprises Er:YAG crystal, pumping system, coupled lens, optical fiber and laser with the emission wavelength at 645-990nm. It has the following characters: it uses Er:YAG crystal redaction and the corresponding laser sets with the wavelength at 2940nm and 645-990nm to compound dual wavelength laser therapy apparatus; it couples the laser with the wavelength at 2940nm and 645-990nm into optical fiber so that the two lasers can be transmitted by one optical fiber.

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 basically use Nd-doped 3+ : Laser crystals are used as laser working materials 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 the doped 3+ : the application of laser produced by laser crystal in medical treatment. Since Er:YAG laser crystals can produce laser light with a wavelength of 2940nm, which coincides with the absorption peak of water in biological tissues, Er:YAG laser therapy machines have great advantages i...

Claims

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Application Information

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IPC IPC(8): A61B18/22
Inventor 林文雄郑晖林宗志黄见洪林授群
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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