Long-wave high-power semiconductor laser comprehensive therapeutic instrument

A comprehensive treatment, semiconductor technology, applied in the field of medical devices, can solve the problems of increasing the risk of secondary bleeding or secondary infection, failing to achieve the best effect, and large tissue area, achieving good biological tissue gasification and cutting function, The effect of good tissue coagulation and hemostasis and compact instrument structure

Inactive Publication Date: 2010-12-01
吉林省长光瑞思激光技术有限公司
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  • Application Information

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Problems solved by technology

[0002] In recent years, with the continuous development of laser technology, various wavelength lasers have become more and more widely used in the field of treatment of human soft tissue diseases, but they all have certain limitations during treatment and cannot achieve the best results
[0003] We know that the near-infrared laser of 800nm-1064nm is mainly absorbed by melanin and oxyhemoglobin, which has good coagulation and hemostasis effects in clinical practice, but has poor vaporization cutting ability for tissues; 2.1μm holmium laser (Ho:YAG) It has a good soft tissue resection ability when working in a short pulse and high energy state, but it is prone to split damage, easy to bleed, difficult to learn and master surgical skills, and the treatment instrument has a complex structure and large volume; green laser (KTP) It can effectively remove human soft tissue, and has the advantages of simple method, quick effect, and good hemostasis effect. However, the area of ​​missing tissue is large after operation, and the wound repair time is long, which increases the risk of secondary bleeding or secondary infection. Tissue coagulation reduces resection rate

Method used

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  • Long-wave high-power semiconductor laser comprehensive therapeutic instrument
  • Long-wave high-power semiconductor laser comprehensive therapeutic instrument
  • Long-wave high-power semiconductor laser comprehensive therapeutic instrument

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Experimental program
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Effect test

Embodiment 1

[0040] Present embodiment adopts the semiconductor laser module 8 that central wavelength is 1940nm (± 20nm) as the semiconductor laser module 8 of comprehensive treatment instrument, and it is made up of seven 1940nm semiconductor laser single tubes according to figure 2 The beam-splitter coupling shown in the scheme: the beam splitter 230 is placed at an angle of 45° with the collimated laser beam S1-S7, and the partial reflective surface P1 of the beam splitter 230 is coated with a partially reflective optical film for 1940nm (±20nm), and the beam splitter 230 On the P2 surface, there is an optical film that is antireflective to 1940nm (±20nm) and highly reflective to 635nm. The collimated beams S1-S7 output by the laser are partially reflected after passing through the beam splitter 230 to obtain reflected beams R1-R7 and transmitted beams S1’-S7’. The reflected beams R1-R7 and the collimated beams S1-S7 form a 90° right angle. Part of the reflected light beams R1-R7 are ...

Embodiment 2

[0056] Embodiment two: the semiconductor laser module 8 adopts a 1470nm semiconductor laser fiber coupling module, and the technical scheme is similar to embodiment one, as long as the semiconductor laser is changed into a 1470nm wavelength, the partial reflective surface P1 of the beam splitter 230 is coated with a partially reflective optical film to 1470nm It is sufficient that the P2 surface of the beam splitter 230 has an optical film that is antireflective to 1470nm and highly reflective to 635nm. In this way, seven semiconductor lasers can be bundled together continuously to achieve 35w laser output; the numerical aperture of the medical optical fiber 16 is 0.22 or 0.37, and the core diameter is 400 μm to 600 μm. The laser can be output along the axial direction of the optical fiber or from the side of the optical fiber It can also output radially, and choose different optical fibers according to the application. The 1470nm laser can be strongly absorbed by water and we...

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Abstract

The invention relates to a long-wave high-power semiconductor laser comprehensive therapeutic instrument comprising a power supply, a core circuit control system, a semiconductor laser module, a heat radiation cooling device, peripheral equipment and a medical fiber, wherein the power supply is connected with the core circuit control system; the semiconductor laser module, the heat radiation cooling device and the peripheral equipment are respectively connected with the core circuit control system; the output of the semiconductor laser module is connected with the medical fiber; the semiconductor laser module outputs laser beams with wave lengths ranging from 1.4 micrometers to 2.0 micrometers, and lasers with the wave lengths can be intensively absorbed by water and have good biological tissue gasification incision functions, higher oxyhemoglobin absorbing capability and good tissue coagulation hemostasis capability. The invention can accurately and efficiently carry out an excision surgery on soft tissues of a human body and can be applied to the therapy of diseases in the fields of vascular surgery, urology department, lung disease department, general surgery, and the like and has the advantages of small size, light weight, easy operation, and the like.

Description

technical field [0001] The invention belongs to the field of medical devices, and relates to a long-wavelength semiconductor laser medical device, in particular to a portable, high-power semiconductor laser therapeutic instrument for medical optical fiber transmission used in soft tissue cutting. Background technique [0002] In recent years, with the continuous development of laser technology, lasers of various wavelengths have been used more and more widely in the field of treatment of human soft tissue diseases, but they all have certain limitations during the treatment and fail to achieve the best results. [0003] We know that the near-infrared laser of 800nm-1064nm is mainly absorbed by melanin and oxyhemoglobin, which has good coagulation and hemostasis effects in clinical practice, but has poor vaporization cutting ability for tissues; 2.1μm holmium laser (Ho:YAG) It has a good soft tissue resection ability when working in a short pulse and high energy state, but it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/22
Inventor 胡黎明王立军王彪曹军胜
Owner 吉林省长光瑞思激光技术有限公司
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