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Dual-wavelength high-power surgical instrument for prostate laser resection

A high-power, surgical instrument technology, applied in surgery, parts of surgical instruments, medical science, etc., can solve problems such as poor vaporization and stripping of prostate tissue, difficulty in urinating, etc., and improve shutdown efficiency, safety and practical performance Improve the effect of high output efficiency

Pending Publication Date: 2019-04-12
WEIHAI WEIGAO LASER MEDICAL EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the wavelength of the 980nm semiconductor laser is close to the 1064nm of Nd:YAG, and its surgical characteristics are similar to the Nd:YAG BPH surgery, that is, the effect of vaporization and stripping of prostate tissue is poor, and dysuria is often found after surgery.

Method used

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  • Dual-wavelength high-power surgical instrument for prostate laser resection
  • Dual-wavelength high-power surgical instrument for prostate laser resection
  • Dual-wavelength high-power surgical instrument for prostate laser resection

Examples

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with accompanying drawing:

[0037] figure 1It is a schematic diagram of a dual-wavelength laser surgery system. The system (100) is composed of a laser head (10), a control system (20), a pedal (30) and an optical fiber (115) with a high power of 532nm. in. The laser head 10 includes a front cavity mirror 101, a Q switch 102, a Q switch 103, a pump source 104, a first reflector 105, a second reflector 106, a frequency doubling crystal 107, a semiconductor cooling and heating device 108, a rear cavity mirror 109, The third reflection mirror 113, the condenser lens 114, the output fiber fixing device 116, the 980nm fiber coupling module 110, the coupling module heat sink 117, the 980nm transmission fiber 111, and the 980nm laser collimator 112 are composed. The front cavity mirror 101 is coated with a high reflection film for 1064nm. The first mirror 105 is coated with a high reflection film for 1064...

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Abstract

The present invention relates to the field of human body soft tissue combined treatment of continuous pumping of acousto-optic Q-switched solid visible laser and semiconductor near-infrared laser, andparticularly discloses a dual-wavelength high-power surgical instrument for prostate laser resection in the field of high-power laser prostatectomy. The dual-wavelength high-power surgical instrumentis characterized in that a laser head comprises a solid-state laser capable of outputting a green visible beam and a semiconductor laser capable of outputting a near-infrared laser beam, the green visible laser beam and near-infrared beam are coupled via an aspheric lens to surgical fibers having a core diameter of 400-800 [mu]m, the solid-state laser includes at least 2 sound field direction vertical cross-acousto-optic Q-switches and at least one laser nonlinear double-frequency crystal, and an output fiber of the semiconductor laser has a beam parameter product that is smaller than a beamparameter product of a surgical fiber. The dual-wavelength high-power surgical instrument has advantages of good safety, easy operation, low technical skill requirements for physicians, etc.

Description

technical field [0001] The invention relates to the field of combined treatment of soft tissue of human body with continuous pumped acousto-optic Q-switched solid-state visible light laser and semiconductor near-infrared laser, in particular to a dual-wavelength high-power surgical instrument for prostate laser ablation in the field of high-power laser prostatectomy. Background technique [0002] Benign prostatic hyperplasia (BPH) can cause urinary frequency, painful urination, and urinary retention. Transurethral surgical resection of obstructed prostate tissue has been the "gold standard" in urological treatment of BPH. Although transurethral resection of the prostate (TURP) is a minimally invasive surgical procedure, it is associated with significant complications mainly due to blood loss. Laser technology offers a viable treatment option for this common blood loss problem. Over the years, urologists and laser practitioners have used different types of lasers to treat B...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/22
CPCA61B18/22A61B2018/00505A61B2018/00577A61B2018/2065
Inventor 金洋穆力越金讯波吕文斌张彦鑫梁昊
Owner WEIHAI WEIGAO LASER MEDICAL EQUIP CO LTD
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