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A high-power fiber laser prostate treatment system

A fiber laser and treatment system technology, applied in treatment, lasers, laser components, etc., can solve problems such as increasing laser pumping efficiency and deteriorating beam quality, and achieve improved output power and beam quality, increased efficiency, increased Effect of large pump efficiency

Active Publication Date: 2018-04-17
SUZHOU GUOKE HUADONG MEDICAL APP & INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Another object of the present invention is to provide a high-power fiber laser prostate treatment system, which can solve the problem of beam quality deterioration of single-core fiber lasers in order to increase power, and the multi-fiber cores in the cladding are formed around the gas wedge. Rotationally symmetrical distribution improves the probability of pump light passing through the gain fiber core, thereby greatly increasing the pumping efficiency of the laser, and achieving higher power output on the premise of ensuring better beam quality

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  • A high-power fiber laser prostate treatment system
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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0031] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0032] figure 1 and figure 2 An implementation form according to the present invention is shown, which includes:

[0033] A laser resonator, which includes a total reflection mirror 1 and an output mirror 12 whose central axis is on the laser optical path, this component is used to select light with a certain frequency and moves along the axis of the resonator, and amplify it;

[0034] A pump source 4, which is located in the laser resonant cavity, and this component is used to form a population inversion in the laser working medium;

[0035] Gain fiber 6, which is used to ab...

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Abstract

The invention discloses a high-power fiber laser prostate treatment system, which comprises a laser resonant cavity, a pump source, a gain fiber, an electro-optical Q-switching device, and a fiber coupling lens; wherein, the gain fiber includes a gain fiber core, an air wedge, and the inner cladding, the outer cladding, and the reinforcing coating layer sequentially covering the core and the air wedge from the inside to the outside, the number of the gain core is greater than one, and the gain core and the gain fiber are The central axes are parallel, the gas wedge is an elongated strip hollow structure, one end of the gas wedge is located at the center of the inner cladding, and the other end of the gas wedge is located at the edge of the inner cladding. The invention adopts a special multi-core gain fiber structure, the fiber cores are distributed non-rotationally symmetrical, the special air wedge design breaks the circular symmetry of the fiber, overcomes the power limit of the fiber laser with a single fiber core, and increases the pump of the laser. The output power of the laser is greatly improved.

Description

technical field [0001] The invention relates to the technical field of fiber lasers, in particular to a high-power fiber laser prostate treatment system. Background technique [0002] Benign prostatic hyperplasia (benign prostatic hyperplasia, BPH) is a common and frequently-occurring disease in elderly men, and its incidence gradually increases with age, reaching more than 50% at the age of 60 and reaching 83.3% at the age of 80. There are a large number of patients in urgent need of treatment all over the world, and it is obvious that the development of a prostate therapeutic instrument is promising and meaningful. At present, transurethral resection of the prostate is still considered the gold standard for minimally invasive treatment of BPH, but it is prone to serious complications such as bleeding and resection syndrome after operation. [0003] The 2μm band is very close to the absorption peak of water at 1.94um, and its absorption rate for water is 4 times that of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/10H01S3/067A61N5/067
Inventor 杨杰顾华东陈瑞涛郑陈琪姚春丽
Owner SUZHOU GUOKE HUADONG MEDICAL APP & INSTR
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