CN1768715A - Laser therapeutic machine - Google Patents
Laser therapeutic machine Download PDFInfo
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- CN1768715A CN1768715A CN 200410092061 CN200410092061A CN1768715A CN 1768715 A CN1768715 A CN 1768715A CN 200410092061 CN200410092061 CN 200410092061 CN 200410092061 A CN200410092061 A CN 200410092061A CN 1768715 A CN1768715 A CN 1768715A
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Abstract
The invention relates to a laser treating equipment whose emission wavelength is 593nm, 594nm, or 589nm which is near to ideal the absorption peak 577nm of oxidized hemoglobin, and since it is the full-solid laser treating equipment, compared to dyestuff laser, said treating equipment can significantly reduce the cost. The pulse length of output laser is 3-100ms which is continuously adjustable and each pulse can be divided into two or more 0.2-3ms long-pulse laser. Said long pulse laser treating equipment can replace present dyestuff laser treating equipment to treat the erythema lesion.
Description
Technical field
The present invention relates to laser medical equipment.
Background technology
Nevus flammeus is a kind of of birthmark, claims port wine stains again.Sick position of decreasing is very tight usually, is positioned at Intradermal, and conventional Therapeutic Method is difficult to it is dispeled.If treat too shallow, can't remove disease decreases, as want to reach the ideal treatment degree of depth, cicatrix then is bound to stay, the treatment principle of isotope or X line is comparatively similar, all is to utilize the principle of lonizing radiation to treat the disease damage, as treats the excessive radiation injury that often causes, this radiation injury will be irreversible, finally can cause the formation of cicatrix.With regard to scarlet pinta was decreased, the target color base of laser therapy was the HbO2 Oxyhemoglobin in the vessel inner blood.The HbO2 Oxyhemoglobin absorption peak has three: i.e. 418nm (blueness), 542nm (green) and 577nm (yellow).Wherein 418nm is the absorption peak of HbO2 Oxyhemoglobin maximum, if we only consider absorbability, the laser of this wavelength is optimal beyond doubt, but the penetration capacity of 418nm laser is poor, do not reach most vascular tissues of dermis of skin, and 418nm laser can also be absorbed well by the melanin in the epidermis, might cause postoperative skin hypopigmentation etc., so the 418nm wavelength is compared with the wavelength of 542nm and 577nm, although the laser absorption peak value of latter two wavelength is less relatively, but their penetrance is better, and melanin is many like that not as 418nm to their absorption, becomes ideal optical maser wavelength so close 542nm and 577nm wavelength are the scarlet pintas of treatment.For the position deeply pathological changes, then near the wavelength the 577nm is desirable more.With regard to pigment disorders, the melanin absorption peak value absorbs minimizing in 280nm～1200nm and with the wavelength increase.
What at present, be used for treating red skin lesion such as nevus flammeus mainly is the dye laser of 585nm and 595nm wavelength near desired wavelength 577nm.But the dye laser of 585nm and 595nm wavelength, owing to often change dye cell (dye cell of dye laser replacing frequency is usually: every continuous operation was changed once in 2 hours), thus improved medical treatment cost greatly.
A kind of laser therapy aparatus of our invention, its emission wavelength is that 593nm or 594nm or 598nm and the desirable absworption peak 577nm of HbO2 Oxyhemoglobin are very approaching, and be the all-solid state laser therapy apparatus, to compare with dye laser, this therapy apparatus greatly reduces medical treatment cost.
Summary of the invention
Purpose of the present invention just is to disclose a kind of laser therapy aparatus, and its emission wavelength is 593nm or 594nm or 598nm, and desirable absworption peak 577nm is very approaching with HbO2 Oxyhemoglobin, compares with dye laser, and this therapy apparatus has lower medical treatment cost.Believe that this therapy apparatus has market prospect preferably.
It is the pumping through pumping system of Nd:YAP laser crystal and Nd:YAG laser crystal, and emitted laser obtains the Long Pulse LASER of 593nm or 594nm or 598nm behind nonlinear crystal, go into optical fiber through Lens Coupling and transmit.
A kind of laser therapy aparatus is characterized in that this therapy apparatus is to utilize the laser of the laser of the laser of Nd:YAG crystal radiation 1064nm and Nd:YAP crystal radiation 1341.1nm through nonlinear crystal and the 593nm of back generation frequently; Utilize the laser of the laser of the laser of Nd:YAG crystal radiation 1319nm and Nd:YAP crystal radiation 1080nm through nonlinear crystal and the 594nm of back generation frequently; Utilize the laser of the laser of the laser of Nd:YAP crystal radiation 1080nm and Nd:YAP crystal radiation 1341.1nm through nonlinear crystal and the 598nm of back generation frequently.The laser that produces with back frequently is coupled in the optical fiber through coupled lens and transmits.
It is that 3-100ms is adjustable continuously that said laser is pulse width, and each pulse can be divided into two or more pulsewidths 0.2-3ms pulse.Like this can be according to the practical situation of clinical treatment, adopt the Long Pulse LASER of distinct pulse widths that it is relaxed heating to the blood vessel of different tube diameters, and improved shg efficiency, improved the single pulse energy of laser.
Description of drawings
Accompanying drawing is the pie graph of Long Pulse LASER therapy apparatus example of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the present invention are described further:
The laser of the laser of Nd:YAG crystal radiation 1064nm and Nd:YAP crystal radiation 1341.1nm is through the laser of nonlinear crystal and the 593nm of back generation frequently, 11 is Nd:YAP crystal that b cuts in the accompanying drawing then, this crystal
4F
3/2To
4I
13/2Transition in two spectral lines are arranged, wherein 1341.1nm is better than along the polarising 1339.1nm spectral line of a direction along c direction polarization spectral line.The 12nd, the pumping xenon lamp, the 13rd, the optical filtering pipe of elimination pumping lamp ultraviolet radiation, the 14th, hard-pressed bale formula ellipse or round laser pump cavity, the 15th, the total reflective mirror of surface plating 1341.1nm high-reflecting film and 1080nm anti-reflection film, the 16th, along the quartz polarization sheet of Brewster's angle placement, the anti-reflection film of surface plating 1341.1nm, the rotatory polarization sheet makes it play folk prescription to being parallel to Nd:YAP crystal c direction.During the high-energy pumping, if intracavity does not insert polaroid, intracavity is easy to generate along the polarising 1341.1nm laser of c direction with along the polarising 1339.1nm laser of a direction, when being divided into the pulse of two or more 0.2-3ms, long pulse will produce pulse spike like this, very easily damage nonlinear crystal KTP, for fear of the generation of this situation, we insert aforesaid polaroid at intracavity and suppress the polarising 1339.1nm generation of Laser of a direction.The 17th, the self-circulation cold radiator cooler, the 18th, power supply, can be to increase continuously 1200 volts from 0, operating frequency is in 1-10 hertz and the continuously adjustable Switching Power Supply of pulsewidth 3-100ms, because the work characteristics of Long Pulse LASER is: laser generation is to form in whole optical pumping pulse operating time, luminous waveform and the pulsewidth of the waveform of the laser that is produced and pulsewidth and pumping xenon lamp is similar, and the luminescent properties of pumping xenon lamp is to be added in voltage-controlled on xenon lamp two electrodes by pulse power system.So the pulsewidth of this therapy apparatus is adjustable and pulsewidth under can be divided into two or more pulsewidths and control by Switching Power Supply.Because this power technology maturation is not described in detail at this.The 21st, Nd:YAG crystal, the 22nd, pumping xenon lamp, the 23rd, the optical filtering pipe of elimination pumping lamp ultraviolet radiation, the 24th, hard-pressed bale formula ellipse or round laser pump cavity, the 25th, surface plating 1064nm high-reflecting film total reflective mirror, the 26th, quartzy etalon, its surface plating 1064 anti-reflection films, during the high-energy pumping, the Nd:YAG crystal
4F
3/2To
4I
11/2Transition in except producing the 1064nm spectral line, also will produce the spectral line of 1061nm and 1074nm, if intracavity does not insert quartzy etalon, intracavity is easy to generate the laser of 1064nm, 1061nm and 1074nm, when being divided into the pulse of two or more 0.2-3ms, long pulse will produce pulse spike like this, very easily damage nonlinear crystal KTP, for fear of the generation of this situation, we insert aforesaid etalon at intracavity and suppress 1061nm and 1074nm generation of Laser.The 27th, the self-circulation cold radiator cooler, the 28th, power supply can be to increase continuously 1200 volts from 0, operating frequency is in 1-10 hertz and the continuously adjustable Switching Power Supply of pulsewidth 3-100ms.The 31st, total reflective mirror, the high-reflecting film of its end face plating 1064nm, 1341.1nm and 593nm, the 32nd, nonlinear crystal KTP, it has big nonlinear factor by II class phase matching angle cutting processing, and all plates 1064nm, 1341.1nm and 593nm anti-reflection film to reduce the loss of intracavity in crystalline both ends of the surface.33,34 be 45 ° of coupling mirrors, wherein high anti-, 1341.1nm of the plating of the A face in 33 1064nm and 593nm anti-reflection film, B face plating 1341.1nm and 593nm anti-reflection film, high anti-, the 593nm anti-reflection film of A face plating 1341.1nm in 34, B face plating 593nm anti-reflection film, the chamber mirror of designing makes with frequency efficient through optimization and improves greatly, and output 593nm laser surpasses 35W.The 35th, collecting lens and 36 Transmission Fibers are only transparent to 593nm all, and loss is all very little.
The laser of the laser of Nd:YAG crystal radiation 1319nm and Nd:YAP crystal radiation 1080nm is through the laser of nonlinear crystal and the 594nm of back generation frequently, 11 is Nd:YAP crystal that b cuts in the accompanying drawing then, this crystal
4F
3/2To
4I
11/2Transition in five spectral lines are arranged, wherein 1080nm is the strongest along c direction polarization spectral line, secondly is along the polarising 1064.5nm spectral line of a direction.The 12nd, the pumping xenon lamp, the 13rd, the optical filtering pipe of elimination pumping lamp ultraviolet radiation, the 14th, hard-pressed bale formula ellipse or round laser pump cavity, the 15th, the total reflective mirror of surface plating 1080nm high-reflecting film, the 16th, along the quartz polarization sheet of Brewster's angle placement, the anti-reflection film of surface plating 1080nm, the rotatory polarization sheet makes it play folk prescription to being parallel to Nd:YAP crystal c direction.During the high-energy pumping, if intracavity does not insert polaroid, intracavity is easy to generate along the polarising 1080nm laser of c direction with along the polarising 1064.5nm laser of a direction, when being divided into the pulse of two or more 0.2-3ms, long pulse will produce pulse spike like this, very easily damage nonlinear crystal, for fear of the generation of this situation, we insert aforesaid polaroid at intracavity and suppress the polarising 1064.5nm generation of Laser of a direction.The 17th, the self-circulation cold radiator cooler, the 18th, power supply can be to increase continuously 1200 volts from 0, operating frequency is in 1-10 hertz and the continuously adjustable Switching Power Supply of pulsewidth 3-100ms.The 21st, the Nd:YAG crystal, the 22nd, the pumping xenon lamp, the 23rd, the optical filtering pipe of elimination pumping lamp ultraviolet radiation, the 24th, hard-pressed bale formula ellipse or round laser pump cavity, the 25th, the total reflective mirror of surface plating 1319nm high-reflecting film and 1064nm anti-reflection film, the 26th, quartzy etalon, its surface plating 1319nm anti-reflection film, during the high-energy pumping, the Nd:YAG crystal
4F
3/2To
4I
13/2Transition in except producing the 1319nm spectral line, also will produce the spectral line of 1338nm, if intracavity does not insert quartzy etalon, intracavity is easy to generate the laser of 1319nm laser and 1338nm, when being divided into the pulse of two or more 0.2-3ms, long pulse will produce pulse spike like this, very easily damage nonlinear crystal, for fear of the generation of this situation, we insert aforesaid etalon at intracavity and suppress the 1338nm generation of Laser.The 27th, the self-circulation cold radiator cooler, the 28th, power supply can be to increase continuously 1200 volts from 0, operating frequency is in 1-10 hertz and the continuously adjustable Switching Power Supply of pulsewidth 3-100ms.The 31st, total reflective mirror, the high-reflecting film of its end face plating 1080nm, 1319nm and 594nm, the 32nd, nonlinear crystal KTP, it has big nonlinear factor by II class phase matching angle cutting processing, and all plates 1080nm, 1319nm and 594nm anti-reflection film to reduce the loss of intracavity in crystalline both ends of the surface.33,34 be 45 ° of coupling mirrors, wherein high anti-, 1080nm of the plating of the A face in 33 1319nm and 594nm anti-reflection film, B face plating 1080nm and 594nm anti-reflection film, high anti-, the 594nm anti-reflection film of A face plating 1080nm in 34, B face plating 594nm anti-reflection film, the chamber mirror of designing makes with frequency efficient through optimization and improves greatly, and output 594nm laser surpasses 35W.The 35th, collecting lens and 36 Transmission Fibers are only transparent to 594nm all, and loss is all very little.
The laser of the laser of Nd:YAP crystal radiation 1341.1nm and Nd:YAP crystal radiation 1080nm is through the laser of nonlinear crystal and the 598nm of back generation frequently, 11 is Nd:YAP crystal that b cuts in the accompanying drawing then, this crystal
4F
3/2To
4I
11/2Transition in five spectral lines are arranged, wherein 1080nm is the strongest along c direction polarization spectral line, secondly is along the polarising 1064.5nm spectral line of a direction.The 12nd, the pumping xenon lamp, the 13rd, the optical filtering pipe of elimination pumping lamp ultraviolet radiation, the 14th, hard-pressed bale formula ellipse or round laser pump cavity, the 15th, the total reflective mirror of surface plating 1080nm high-reflecting film, the 16th, along the quartz polarization sheet of Brewster's angle placement, the anti-reflection film of surface plating 1080nm, the rotatory polarization sheet makes it play folk prescription to being parallel to Nd:YAP crystal c direction.During the high-energy pumping, if intracavity does not insert polaroid, intracavity is easy to generate along the polarising 1080nm laser of c direction with along the polarising 1064.5nm laser of a direction, when being divided into the pulse of two or more 0.2-3ms, long pulse will produce pulse spike like this, very easily damage nonlinear crystal KTP, for fear of the generation of this situation, we insert aforesaid polaroid at intracavity and suppress the polarising 1064.5nm generation of Laser of a direction.The 17th, the self-circulation cold radiator cooler, the 18th, power supply can be to increase continuously 1200 volts from 0, operating frequency is in 1-10 hertz and the continuously adjustable Switching Power Supply of pulsewidth 3-100ms.The 21st, the Nd:YAP crystal, the 22nd, the pumping xenon lamp, the 23rd, the optical filtering pipe of elimination pumping lamp ultraviolet radiation, the 24th, hard-pressed bale formula ellipse or round laser pump cavity, the 25th, the total reflective mirror of surface plating 1341.1nm high-reflecting film and 1080nm anti-reflection film, the 26th, along the quartz polarization sheet that Brewster's angle is placed, the anti-reflection film of surface plating 1341.1nm, the rotatory polarization sheet makes it play folk prescription to being parallel to Nd:YAP crystal c direction.During the high-energy pumping, if intracavity does not insert polaroid, intracavity is easy to generate along the polarising 1341.1nm laser of c direction with along the polarising 1339.1nm laser of a direction, when being divided into the pulse of two or more 0.2-3ms, long pulse will produce pulse spike like this, very easily damage nonlinear crystal KTP, for fear of the generation of this situation, we insert aforesaid polaroid at intracavity and suppress the 1339.1nm generation of Laser.The 27th, the self-circulation cold radiator cooler, the 28th, power supply can be to increase continuously 1200 volts from 0, operating frequency is in 1-10 hertz and the continuously adjustable Switching Power Supply of pulsewidth 3-100ms.The 31st, total reflective mirror, the high-reflecting film of its end face plating 1080nm, 1341.1nm and 598nm, the 32nd and frequency crystal KTP, it has big nonlinear factor by II class phase matching angle cutting processing, and all plates 1080nm, 1341.1nm and 598nm anti-reflection film to reduce the loss of intracavity in crystalline both ends of the surface.33,34 be 45 ° of coupling mirrors, wherein high anti-, 1080nm of the plating of the A face in 33 1341.1nm and 598nm anti-reflection film, B face plating 1080nm and 598nm anti-reflection film, high anti-, the 598nm anti-reflection film of A face plating 1080nm in 34, B face plating 598nm anti-reflection film, the chamber mirror of designing makes with frequency efficient through optimization and improves greatly, and output 598nm laser surpasses 35W.The 35th, collecting lens and 36 Transmission Fibers are only transparent to 598nm all, and loss is all very little.
After starting laser, the medical worker can be according to the practical situation of the state of an illness, select suitable power supply energy storage, operating frequency and work pulsewidth, make from the laser of optical fiber output and directly focus is carried out demulcent irradiation heating, making it atrophy condenses, realize flexible treatment, can reduce mechanicalness tractive simultaneously greatly, thereby avoided the formation of subcutaneous hemorrhage and purpura blood vessel.
Claims (9)
1. laser therapy aparatus, comprise Nd:YAP crystal, Nd:YAG crystal, nonlinear crystal, pumping system, polaroid, coupled lens, optical fiber, it is characterized in that: utilize radiating laser of Nd:YAP crystal and the radiating laser of Nd:YAG crystal to produce the laser therapy aparatus of 593nm, 594nm and 598nm behind nonlinear crystal and frequency, 593nm, 594nm, 598nm laser are coupled in the optical fiber through coupled lens and transmit.
2. laser therapy aparatus as claimed in claim 1 is characterized in that: its pulse width is that 3-100ms is adjustable continuously, and each pulse can be divided into two or more pulsewidths 0.2-3ms pulse.
3. laser therapy aparatus as claimed in claim 1 is characterized in that: its working-laser material is Nd:YAP and Nd:YAG.
4. laser therapy aparatus as claimed in claim 1 is characterized in that: it utilizes the laser of the laser of the laser of Nd:YAP crystal radiation 1080nm and Nd:YAG crystal radiation 1319nm through nonlinear crystal and the 594nm of back generation frequently.
5. laser therapy aparatus as claimed in claim 1 is characterized in that: it utilizes the laser of the laser of the laser of Nd:YAP crystal radiation 1341.1nm and Nd:YAG crystal radiation 1064nm through nonlinear crystal and the 593nm of back generation frequently.
6. laser therapy aparatus as claimed in claim 1 is characterized in that: it utilizes the laser of the laser of the laser of Nd:YAP crystal radiation 1340nm and Nd:YAP crystal radiation 1080nm through nonlinear crystal and the 598nm of back generation frequently.
7. laser therapy aparatus as claimed in claim 1 is characterized in that: its used frequency-doubling crystal is KTP, LBO, BBO, KTA, LN, CTA, RTP or KN crystal.
8. laser therapy aparatus as claimed in claim 1 is characterized in that: its used polaroid is piezoid, K9 glass, silicon chip or prism.
9. laser therapy aparatus as claimed in claim 1 is characterized in that: its coupled lens and Transmission Fibers are only transparent to 593nm, 594nm, 598nm's.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410092061 CN1768715A (en) | 2004-11-01 | 2004-11-01 | Laser therapeutic machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410092061 CN1768715A (en) | 2004-11-01 | 2004-11-01 | Laser therapeutic machine |
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| CN1768715A true CN1768715A (en) | 2006-05-10 |
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| CN 200410092061 Pending CN1768715A (en) | 2004-11-01 | 2004-11-01 | Laser therapeutic machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102316247A (en) * | 2010-06-29 | 2012-01-11 | 奥林巴斯株式会社 | Image processing apparatus |
| CN102801090A (en) * | 2012-08-13 | 2012-11-28 | 温州泛波激光有限公司 | Long-pulse fiber laser |
-
2004
- 2004-11-01 CN CN 200410092061 patent/CN1768715A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102316247A (en) * | 2010-06-29 | 2012-01-11 | 奥林巴斯株式会社 | Image processing apparatus |
| CN102316247B (en) * | 2010-06-29 | 2016-08-17 | 奥林巴斯株式会社 | Image processing apparatus |
| CN102801090A (en) * | 2012-08-13 | 2012-11-28 | 温州泛波激光有限公司 | Long-pulse fiber laser |
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Open date: 20060510 |