LD pump high power 2 [mu]m wave lengh medical Tm laser

A high-power, laser technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problems of difficult operation, splinter damage, long operation time, etc. easy effect

Inactive Publication Date: 2009-01-21
天津市天坤光电技术有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the Ho laser with a wavelength of 2.1 μm, which works in a pulsed manner, is prone to split damage when the prostate tissue is vaporized and ruptured, that is, it is easy to bleed during the operation, and the operation is difficult to master; Bleaching slows down resection, resulting in prolonged operative time for larger prostate masses

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  • LD pump high power 2 [mu]m wave lengh medical Tm laser
  • LD pump high power 2 [mu]m wave lengh medical Tm laser

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Embodiment

[0018] Embodiment: see accompanying drawing

[0019] An LD-pumped high-power medical Tm laser with a wavelength of 2 μm is composed of an LD pumping system, a laser crystal rod 2, an optical resonator, a water cooling system 5-I.5-II, and a drying system 8; the LD pumping system uses GaAlAs The semiconductor laser array is the pump source, there are 3 groups of LD array modules 4-I, 4-II, 4-III in total, and the 3 groups of LD array modules 4-I, 4-II, 4-III surround the laser crystal rod 2 at 120 degrees Evenly distributed, the three groups of LD array modules all emit laser light with a center wavelength of 785nm; the laser beam is shaped by three cylindrical lenses 3-I, 3-II, and 3-III that match the LD array module, and then pumps the laser crystal rod 2 ;Laser crystal rod 2 adopts Tm:YAG bonded crystal rod with a size of Φ4×80mm, in which the length of the Tm ion-doped part in the middle is 60mm, and the length of the undoped part at both ends is 10mm; the optical resonant...

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Abstract

The invention relates to a LD pumping high-power 2Mum wavelength medical Tm LASER, consisting of a LD pumping system, a laser crystal rod, an optical resonant cavity, a water-cooling system, a drying system, a focusing mirror and an optical fiber. The LD pumping system takes GaAlAs semiconductor laser array as a pumping source, comprising 3 groups of LD array modules in total; the laser crystal rod adopts a Tm-doped bonding crystal rod; the optical resonant cavity is a planoconcave cavity; the water cooling system can make the laser crystal rod operate under low temperature; the drying system is a nitrogen-filled drying box in which the complete laser optical path is arranged; the laser is coupled to the optical-fiber output by the focusing mirror. The invention has the advantages that 2Mum wavelength laser can be exported high efficiently, vaporized incision of prostate and other soft tissues can be conducted under water environment efficiently, the operation is rapid, and the manipulation is easy, and damages are avoided; the invention can be extensively applied to the clinic fields of urinary surgery, orthopaedics, gynecopathy, dyspepsia and various minimally invasive operations, etc.. Therefore, the invention is an ideal medical LASER.

Description

(1) Technical field [0001] The invention relates to a medical solid-state laser, in particular to an LD-pumped high-power medical Tm laser with a wavelength of 2 μm. (2) Background technology [0002] Laser has a good application prospect in the resection of human soft tissues such as prostate, especially the emergence of high-power Ho laser and green laser, so that laser has been widely used in the treatment of benign prostatic hyperplasia. However, the Ho laser with a wavelength of 2.1 μm, which works in a pulsed manner, is prone to split damage when the prostate tissue is vaporized and ruptured, that is, it is easy to bleed during the operation, and the operation is difficult to master; Bleaching reduces the rate of resection and results in prolonged operative times for larger prostate masses. (3) Contents of the invention [0003] The object of the present invention is to solve the above-mentioned problems and provide an LD-pumped high-power medical Tm laser with a wa...

Claims

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Application Information

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IPC IPC(8): H01S3/0941H01S3/16H01S3/08H01S3/042G02B6/00A61B18/20
Inventor 徐封义姚育成
Owner 天津市天坤光电技术有限公司
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