CN201022744Y - 532nm wavelength green laser prostatic hyperplasia therapeutic instrument - Google Patents
532nm wavelength green laser prostatic hyperplasia therapeutic instrument Download PDFInfo
- Publication number
- CN201022744Y CN201022744Y CNU2006200416126U CN200620041612U CN201022744Y CN 201022744 Y CN201022744 Y CN 201022744Y CN U2006200416126 U CNU2006200416126 U CN U2006200416126U CN 200620041612 U CN200620041612 U CN 200620041612U CN 201022744 Y CN201022744 Y CN 201022744Y
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- prostatic hyperplasia
- fiber
- mirror
- therapeutic instrument
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Abstract
A green laser therapeutic instrument with a wavelength of 532 nm for prostatic hyperplasia is characterized in that plane totally reflecting mirrors are separately arranged one two ends of a Nd:YAG laser crystal rod, and a concave totally reflecting mirror and a plane output mirror are correspondingly arranged, and an acoustooptic Q switch, a KTP or LBO crystal are arranged therebetween, jointly forming a X-ray laser resonator. A large power semiconductor device of 808 nm or a krypton lamp is arranged on a side of the Nd:YAG laser crystal rod, and a fiber coupling device is arranged on a laser output optical path, which is externally connected to an energy transmission fiber, and the other end of the fiber is connected to a fiber lateral output joint. The utility model is mainly used in treatment of diseases such as the prostatic hyperplasia, which has the advantages of safety, good efficacy, less bleeding, quicker postoperative recovery and less complication, etc.
Description
Technical field
This utility model relates to a kind of 532nm wave-length green laser prostatic hyperplasia therapeutic instrument, belongs to the laser medicine technical field.
Background technology
The method clinical practice of urethra prostatectomy (TURP) treatment hyperplastic prostate tissue BPH has had 50 years, hemorrhage many, postoperative generation edema, post-operative recovery are slow, shortcomings such as slough formation are sent out in the back but exist in the excision process, also easily cause severe complications such as unexpected viscera perforation; And melt (TUNA), thermotherapy (WIT) etc. as Nd:YAG laser (VLAT), microwave (TUMT), holmium laser (Ho:YAG), laser gap ablation (ILC), acupuncture, all exist than the more shortcoming of urethra prostatectomy (TURP).
Summary of the invention
The purpose of this utility model
For overcoming many shortcomings of methods such as " urethra prostatectomies ", this utility model provides a kind of therapeutic instrument of 532nm wave-length green laser prostate selective light vaporization operative treatment prostatic hyperplasia, it is used for the treatment of diseases such as prostatic hyperplasia, tumor of bladder, urethral stricture, the advantage of have safety, good effect, go out insufficiency of blood, postoperative not having edema, post-operative recovery soon, is almost sent out slough without male offspring, complication is few.
Technical scheme
This utility model relates to a kind of 532nm wave-length green laser prostatic hyperplasia therapeutic instrument, it mainly is made up of Laser Power Devices and water-cooled thermostat, it is characterized in that: in Nd:YAG laser crystal bar both ends of the surface, the plane total reflective mirror is set respectively, correspondence is provided with concave mirror and flat output mirror therewith, at them between the two, set gradually acousto-optic Q-switching, KTP or lbo crystal, common formation X type laserresonator, in Nd:YAG laser crystal bar side the pumping element is set: 808nm large power semiconductor device or krypton lamp, thereby formed 532nm wave-length green laser device, on flat output mirror output laser optical path, fiber coupling device is set, by its external energy transmission optical fibre, the other end of energy transmission optical fibre connects optical fiber side direction delivery.
In addition, at the crystal bar skin water-cooled circular passage is set, in the position of the crystalline vertical two ends of Nd:YAG perpendicular to axis, acousto-optic Q-switching is set, dispose water-cooling channel simultaneously, the spill completely reflecting mirror that resonator cavity one end is optimized, its radius of curvature is 2m, all the supporting construction bottom is installed on the duralumin, hard alumin ium alloy track of thermal deformation resistant, be positioned in the cabinet again, dispose Laser Power Devices and water-cooled thermostat again, promptly formed 532nm wave-length green laser device, afterwards by the external energy transmission optical fibre of fiber coupling device, the high energy 532nm green laser of exporting from the optical fiber head side of the optical fiber other end, the tissue of direct irradiation prostatic hyperplasia makes it that selective light vaporization take place, and removes hyperplastic prostate tissue.The green glow power of optical fiber head side direction output 532nm reaches 85W, and unstability is less than 1.05%, repetition rate 1～35KH
ZAdjustable.
Beneficial effect
With the therapeutic method of surgery of traditional hyperplasia of prostate relatively, 532nm wave-length green laser prostate selective light vaporization art has the insufficiency of blood of going out, postoperative and does not have edema, post-operative recovery and soon, almost send out many incomparable advantage such as slough, complication are few without male offspring.On treatment mechanism, the green laser tissue penetration of wavelength 532nm is shallow, has only 0.8mm, can not heat a large amount of tissues, the serious ill symptoms of having avoided other laser systems and thermotherapy method to form.On the other hand, laser is by oxygen in the prostata tissue and hemoglobin high absorption, and water then absorbs seldom, so its high-energy can not consume in moisture, its photon can be selected to absorb by euangiotic tissue, eliminates effect thereby produce very effective prostata tissue vaporization.
Description of drawings:
Accompanying drawing is a sketch map of the present utility model, wherein, 1 is that concave mirror, 2 is that acousto-optic Q-switching, 3 is that cooling water channel, 4 is that frequency-doubling crystal KTP or LBO, 5 are that outgoing mirror, 6 is that fiber coupling device, 7 is that plane total reflective mirror, 8 is that pumping matrix, 9 is that Nd:YAG laser crystal, 11 is that cooling water channel, 12 is that plane total reflective mirror, 13 is that Transmission Fibers, 14 is that fiber output head, 15 is that water-cooled thermostat, 16 Laser Power Devices and Q-switch power supply, 17 are computer controller for pumping source can adopt semiconductor pumped device or employing krypton lamp, 10.
The specific embodiment:
Below in conjunction with accompanying drawing this utility model is illustrated.
As shown in drawings, it drives pumping part 9 by Laser Power Devices and removes pumping Nd:YAG laser crystal 10, Nd:YAG laser crystal radiation 1064nm photon, one end reflexes to concave mirror 1 by plane mirror 11, acousto-optic Q-switching 2 is passed in reflection again, enter frequency-doubling crystal 4, frequency-doubled effect takes place produce wavelength 532nm green glow, export the 532nm green glows in coupling device 6 through outgoing mirror 5, by coupling device 6 the 532nm green glow is coupled in the Transmission Fibers 13, be transferred to fiber output head 14 by it, by 14 532nm green glow side direction exported at last, this is placed the sufferer place of prostatic hyperplasia, the green laser of high energy 532nm is vaporized outgrowth prostata tissue, remove the tissue of prostatic hyperplasia, remove urinary tract obstruction, eliminate ailing.
On the other hand, outgoing mirror 5 is in output 532nm green glow, the 1064nm luminous reflectance to plane mirror 7, is radiated back in the Nd:YAG laser crystal 10 by 7 again, that is to say, based on Nd:YAG laser crystal 10, constitute the resonator cavity of X cavity structure by reflecting mirror 1,5,7 and 12, form fundamental frequency 1064nm laser, realize that by frequency-doubling crystal 4 the frequencys multiplication running produces the 532nm green lasers, by acousto-optic Q-switching 2, realize quasi continuous operation.
Laser crystal 10 adopts the Nd:YAG crystal bar of φ 4～φ 6 * 100～150mm, its side hacking, and the plane is worn at two ends, the anti-reflection film of both ends of the surface plating 1064nm and 532nm.Frequency-doubling crystal 4 is KTP or lbo crystal, and it is of a size of 7 * 7 * 8mm, the anti-reflection film of both ends of the surface plating 1064nm and 532nm.
System configuration Laser Power Devices and acousto-optic Q-switching power supply, water-cooled thermostat and computer controller have promptly been formed 532nm wave-length green laser prostatic hyperplasia therapeutic instrument.
In device of the present utility model, the acousto-optical device parameter is: driving power is 50W, and operating frequency is 27MHz, and modulating frequency is 1～35kHz.Secondly, this utility model device adopts optimizes X type resonator cavity, and the oscillation light beam diameter of conversion intracavity has not only increased model volume but also reduced office.Again, this utility model device is by the recirculated cooling water in the cooling duct 3, frequency-doubling crystal 4 is carried out the highly effective refrigeration technical measures, and adopt the technical method of adjusting crystal angle compensation matching angle, thus can improve crystalline heat conductivity, increase the transmission speed of the heat of crystals, reduce plane of crystal and temperature inside is poor, farthest the crystalline phase mismatch of deflate improves crystalline shg efficiency, increases the green glow output of frequency multiplication 532nm.
Claims (1)
1. 532nm wave-length green laser prostatic hyperplasia therapeutic instrument, it is characterized in that: in Nd:YAG laser crystal bar both ends of the surface, the plane total reflective mirror is set respectively, correspondence is provided with concave mirror and flat output mirror therewith, at them between the two, set gradually acousto-optic Q-switching, KTP or lbo crystal, common formation X-shaped laserresonator, in Nd:YAG laser crystal bar side the pumping element is set: 808nm large power semiconductor device or krypton lamp, on flat output mirror output laser optical path, fiber coupling device is set, by its external energy transmission optical fibre, the other end of energy transmission optical fibre connects optical fiber side direction delivery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200416126U CN201022744Y (en) | 2006-05-09 | 2006-05-09 | 532nm wavelength green laser prostatic hyperplasia therapeutic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200416126U CN201022744Y (en) | 2006-05-09 | 2006-05-09 | 532nm wavelength green laser prostatic hyperplasia therapeutic instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201022744Y true CN201022744Y (en) | 2008-02-20 |
Family
ID=39096601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200416126U Expired - Fee Related CN201022744Y (en) | 2006-05-09 | 2006-05-09 | 532nm wavelength green laser prostatic hyperplasia therapeutic instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201022744Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239009A (en) * | 2018-09-03 | 2019-01-18 | 杭州电子科技大学 | Gaseous mercury concentration detection apparatus and method based on ring resonator frequency multiplication structure |
-
2006
- 2006-05-09 CN CNU2006200416126U patent/CN201022744Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239009A (en) * | 2018-09-03 | 2019-01-18 | 杭州电子科技大学 | Gaseous mercury concentration detection apparatus and method based on ring resonator frequency multiplication structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Tao Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Wuxi Haobo Photoelectron Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20100509 |