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A semiconductor laser synthesizer therapeutic instrument

A semiconductor and synthesizer technology, applied in the field of medical devices, can solve the problems of poor stability, large power fluctuations, and harmful injuries to patients due to power fluctuations, achieving stable performance, enhancing controllable functions, and taking into account both efficiency and stability. Effect

Active Publication Date: 2017-02-22
SHENZHEN TIANJIQUAN HEALTH SCI & TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this pure intracavity frequency doubling technology, although the efficiency is high, the power fluctuation is large and the stability is poor
And large power fluctuations are likely to cause harmful injuries to patients

Method used

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  • A semiconductor laser synthesizer therapeutic instrument
  • A semiconductor laser synthesizer therapeutic instrument
  • A semiconductor laser synthesizer therapeutic instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The pump semiconductor laser 1 adopts 808nm LD (in the form of multiple combinations), and the optical coupling system 2 can be a commonly used LD laser coupling component, such as a spherical mirror, an aspheric mirror, a binary optical lens, or a combination thereof , and prepare an anti-reflection coating for pump light on its light-passing surface. The laser medium crystal 4 adopts Nd:YVO4 crystal, the plane reflector 3 is coated with an optical film for anti-reflection of 808nm and total reflection of 1342nm laser, the plane output mirror 5 is coated with an optical film of partial reflection of 1342nm and total reflection of 671nm, frequency doubling crystal 6 adopts PPLN, and the plane feedback mirror 7 is coated with an optical film for anti-reflection at 671nm and total reflection at 1342nm.

[0049] Turn on the power supply 10, and the laser output from the semiconductor laser 1 for pumping is focused on the laser dielectric crystal 4 through the optical coupl...

Embodiment 2

[0051] The semiconductor laser 1 for pumping adopts 880nm LD (in the form of multiple combinations), and the optical coupling system 2 can be a commonly used LD laser coupling component, such as a spherical mirror, an aspheric mirror, a binary optical lens, or a combination thereof , and prepare an anti-reflection coating for pump light on its light-passing surface. The laser medium crystal 4 adopts Nd:YVO4 crystal, the reflector 3 is coated with a film system that is anti-reflective at 880nm and fully reflective to 1342nm laser, the output mirror 5 is coated with a film system with partial reflection at 1342nm and total reflection at 671nm, and the frequency doubling crystal 6 is used LBO crystal, feedback mirror 7 is coated with 671nm anti-reflection film and 1342nm total reflection film.

[0052] Turn on the power supply 10, and the laser output from the semiconductor laser 1 for pumping is focused on the laser dielectric crystal 4 through the optical coupling system 2. Aft...

Embodiment 3

[0054] The pump semiconductor laser 1 adopts 808nm LD (in the form of multiple combinations), and the optical coupling system 2 can be a commonly used LD laser coupling component, such as a spherical mirror, an aspheric mirror, a binary optical lens, or a combination thereof , and prepare an anti-reflection coating for pump light on its light-passing surface. The laser medium crystal 4 adopts Nd:GdVO4 crystal, the plane reflector 3 is coated with anti-reflective film system for 808nm and total reflection for 1340nm laser, the plane output mirror 5 is coated with film system for partial reflection at 1340nm and total reflection for 670nm, frequency doubling crystal 6 adopts PPKTP crystal, and the plane feedback mirror 7 is coated with anti-reflection film for 670nm and total reflection film for 1340nm.

[0055] Turn on the power supply 10, and the laser output from the semiconductor laser 1 for pumping is focused on the laser dielectric crystal 4 through the optical coupling sy...

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PUM

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Abstract

The invention discloses a semiconductor laser synthesizer therapeutic instrument. The semiconductor laser synthesizer therapeutic instrument comprises a semiconductor laser synthesizer and a control system. The semiconductor laser synthesizer comprises a laser dielectric crystal (4), a semiconductor laser unit (1), an optical coupling system (2), a reflector (3), an output mirror (5), a frequency-doubling crystal (6), a feedback mirror (7), a transmission optical fiber (9) and a focusing lens (8), wherein a laser resonant cavity is formed by the laser dielectric crystal (4), the reflector (3) and the output mirror (5), the frequency-doubling crystal (6) is placed between the output mirror (5) and the feedback mirror (7), and the focusing lens (8) is arranged behind the feedback mirror. The control system comprises a power module, a semiconductor laser synthesizer stable operation module and a system control module. According to the semiconductor laser synthesizer therapeutic instrument, the cavity-outside frequency doubling and fundamental wave feedback technology is adopted in cooperation with a circuit control system, so that the purpose of taking both efficiency and stability into consideration is well achieved; the semiconductor laser synthesizer therapeutic instrument can be effectively used for photodynamic therapy, and is used for carrying out laser irradiation on a nasal cavity or acupoints, and carrying out therapy on vascular headaches, brain infarction, post-traumatic brain syndromes and chronic cardiovascular and cerebrovascular diseases.

Description

technical field [0001] The invention belongs to the field of medical equipment, and relates to laser treatment equipment, in particular to a novel semiconductor laser synthesizer treatment instrument. Background technique [0002] Laser is another major invention of mankind since the 20th century, following atomic energy, computers, and semiconductors. It is called "the fastest knife". Its principle was discovered by the famous American physicist Einstein as early as 1916. . The four great inventions of the 20th century were "laser, atomic energy, semiconductors, and computers". Lasers are now widely used in the medical field. The therapeutic effect of low-intensity laser irradiation has been affirmed by experts at home and abroad after clinical verification. It is mainly used in the treatment of brain diseases, cardiovascular diseases, diabetes, tumors, leukemia, mental diseases and so on. According to the discovery of health medicine, the blood fluorescence excited by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/067
Inventor 周志华黄清波周颂林明雷张春爱李红艳
Owner SHENZHEN TIANJIQUAN HEALTH SCI & TECH GRP CO LTD
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