Method and device for removing soft tissue of human body by using pumped high power semiconductor solid laser

A solid-state laser and solid-state laser technology, applied in lasers, laser parts, phonon exciters, etc., can solve problems such as increased user cost, damage to optical components in the laser cavity, and high laser power density, and achieve improved efficiency. Effect

Active Publication Date: 2007-08-15
REALTON SUZHOU MEDICAL TECH CO LTD
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Problems solved by technology

However, there is a disadvantage that the application of solid-state lasers with a power of more than 60W in the hospital environment not only brings a series of inconveniences, but also increases the cost

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  • Method and device for removing soft tissue of human body by using pumped high power semiconductor solid laser
  • Method and device for removing soft tissue of human body by using pumped high power semiconductor solid laser
  • Method and device for removing soft tissue of human body by using pumped high power semiconductor solid laser

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[0029] FIG. 1 is a schematic diagram of the design of a high-power semiconductor-pumped solid-state laser 100 for vaporization and ablation of soft tissues. The system 100 is a Q-switched and intracavity frequency doubled Nd:YAG laser pumped by a semiconductor laser, and it outputs a high-power green laser with a 90 wavelength of 532 nm. The laser system includes a laser head 20, a laser controller 10, and an optical fiber 80.

[0030] The laser head 20 includes a semiconductor laser pump head 60, a Q-switch 50, a double frequency generator 40, and a folding mirror 24, a cavity mirror 25, an infrared reflector 26, and a laser output mirror 27. Laser cavity. The cavity mirror 24 and the infrared reflector 26 are coated with a highly reflective film of 1064 nm. The cavity mirror 25 is coated with a highly reflective film for dual wavelengths of 1064nm and 532nm. One side of the laser output mirror 27 is coated with a 1064nm reflective film and a 532nm high-transmittance film, and th...

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Abstract

The invention discloses a gasifying and cutting method and instrument of tissue through high-power semiconductor pump laser, which is characterized by the following: utilizing high-order transverse-mould of high-power semiconductor pump Q-switch solid laser to output laser; reducing the irradiation to obtain little facular diameter on the soft tissue to increase laser power density; modifying the speed of gasifying cut tissue; improving outputting efficiency of laser; reducing power consumption; avoiding external water or secondary radiating laser system of circulated water.

Description

technical field [0001] The present invention relates to the field of laser ablation for the treatment of human soft tissue, in particular to the field of high power laser prostatectomy. Background technique [0002] Benign prostatic hyperplasia (BPH) causes urinary frequency, painful urination, and urinary retention. Transurethral resection of obstructed prostate (TURP) tissue has been the "gold standard" in urological treatment of BPH. Over fifty years since the invention of TURP, transurethral electrosurgical resection of obstructed prostate has been very widely used in the surgical treatment of BPH. Unfortunately, TURP treatment results are always accompanied by some side effects and complications. [0003] Over the past decade or so, laser surgery has been developed as an alternative to TURP for the treatment of BPH. A high-power laser beam delivered by an optical fiber is irradiated through an endoscope or cystoscope to the prostate tissue to be stripped. The treatm...

Claims

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Application Information

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IPC IPC(8): A61B18/20H01S3/081H01S3/06H01S3/0941H01S3/127H01S3/109
Inventor 赖明穆力越蔡康泽罗维国
Owner REALTON SUZHOU MEDICAL TECH CO LTD
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