CN202589659U - Miniaturized desktop holmium laser therapy apparatus - Google Patents
Miniaturized desktop holmium laser therapy apparatus Download PDFInfo
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- CN202589659U CN202589659U CN2012202353930U CN201220235393U CN202589659U CN 202589659 U CN202589659 U CN 202589659U CN 2012202353930 U CN2012202353930 U CN 2012202353930U CN 201220235393 U CN201220235393 U CN 201220235393U CN 202589659 U CN202589659 U CN 202589659U
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- reflection cavity
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Abstract
The utility model discloses a miniaturized desktop holmium laser therapy apparatus comprising a holmium laser, a power supply, an optical fiber and a water circulation system, wherein the power supply is in circuit connection with an input end of the holmium laser; the optical fiber is in light path connection with an output end of the holmium laser through a resonant cavity; the water circulation system is connected with the holmium laser; the holmium laser comprises a reflection cavity, a holmium crystal fixed in the reflection cavity and one or more than one semiconductor pumping source attached on the inner wall of the reflection cavity; pump light of each semiconductor pumping source is focused on the holmium crystal; and the wavelength range of output light of the semiconductor pumping source is in section of 440, 680 or 780 nanometers. According to the utility model, a semiconductor laser of which the pump light wavelength range is similar to the excitation wavelength range of the holmium crystal is used as the pumping source; therefore, because of the consistency of the wavelength, the producing efficiency of holmium laser is increased, the heat production of the holmium laser is reduced, the energy consumption and the volume of power supply and water cooling systems are reduced and purposes of low energy consumption and miniaturization of the holmium laser therapy apparatus are achieved.
Description
Technical field
This utility model relates to a kind of laser medical equipment, is specifically related to a kind of desktop holmium laser therapy machine of miniaturization.
Background technology
The holmium laser therapy machine is a kind of novel laser medical equipment, is mainly used in the pulverizing of calculus in human body and cutting, the vaporization treatment of portion of tissue.The core component of holmium laser therapy machine is a kind of solid state laser; It is holmium laser 8 '; Holmium laser 8 ' generally includes holmium crystal 1 ', xenon lamp 2 ' and reflection cavity 3 '; This holmium crystal 1 ', xenon lamp 2 ' all are made as strip structure, and reflection cavity 3 ' is made as cylindrical shape (its cross section be circular or the ellipse garden shape) structure of length greater than holmium crystal 1 ' and xenon lamp 2 ', and this holmium crystal 1 ' is arranged in the reflection cavity 3 ' with xenon lamp 2 '.
As shown in Figure 1, be the cross sectional representation of a kind of holmium laser 8 ' in the prior art, a holmium crystal 1 ' and an xenon lamp 2 ' are set in parallel in the reflection cavity 3 '.During work, at first xenon lamp 2 ' electrified light emitting by side irradiation holmium crystal 1 ', carries out broadside to holmium crystal 1 ', and penetrates laser by the penetration chamber, end 3 of holmium crystal 1 ' in reflection cavity 3.
As shown in Figure 2, be the cross sectional representation of another kind of holmium laser 8 ' in the prior art, a holmium crystal 1 ' and two xenon lamps 2 ' are set in parallel in the reflection cavity 3 ', and two xenon lamps 2 ' are separately positioned on the both sides of holmium crystal 1 '.During work, two xenon lamp 2 ' electrified light emittings by the both sides irradiation holmium crystal 1 ' of holmium crystal 1 ', alternately carry out broadside to holmium crystal 1, and penetrate laser by the penetration chamber, end 3 ' of holmium crystal 1 ' respectively in reflection cavity 3 '.
After holmium laser 8 ' formed laser, laser was through forming resonator cavity by various optical glass system, with formation can practical application holmium laser.In real work, give the power supply of xenon lamp pulsed by high power switching power supply, xenon lamp 2 ' pulsed luminous (fluorescent lifetime is a hundreds of microsecond rank) excites holmium crystal 1 ' to form pulse type laser.It is through moment high-power (above 10 kilowatts); Make inherent moisture in the tissue (or other vaporizable materials) vaporization formation plasma fast; Sharply expand then and form explosion; Tear tissue (or calculus), form to the cutting of tissue or to the crushing effect of calculus.
Because its spectrum of light that xenon lamp 2 ' sends is the successive light of wavelength from 190 nanometers to 1100 nanometers; And really can act on wavelength that the holmium element enables to produce the electronic shell transition at 440nm or 680nm or 780nm section; All the other a large amount of wave bands only useless, this part also can produce great amount of heat simultaneously.
As shown in Figure 3, be chromium, thulium, holmium: (Ho:YAG) spectrogram of absorption spectrum, vertical coordinate are absorptance to yttrium-aluminium-garnet for Cr, Tm, and unit is centimetre
-1, abscissa is a wavelength, unit is a nanometer.As scheme visiblely, holmium crystal absorption spectrum has the wave-length coverage of three high-absorbilities, is respectively: about 370 nanometers are to 500 nanometers, and about 660 nanometers are to 720 nanometers, and about 750 nanometers are to 810 nanometers.The peak value of these three wave-length coverages is respectively in 440 nanometers, 680 nanometers and 780 nanometers.
As shown in Figure 4, in order to loose these heats, need to lean on the extra water-cooling system of equipment to digest, the water cooling in prior technology system comprises water circulation system 4 ' and refrigeration compressor 5 '.The holmium laser 8 ' that is provided with xenon lamp 2 ', reflection cavity 3 ', holmium crystal 1 ' is arranged in the backflow of water circulation system 4 ' with refrigeration compressor 5 '; Water circulation system 4 ' is taken the heat in xenon lamp 2 ', reflection cavity 3 ', the holmium crystal 1 ' out of through a large amount of water; Transferring to refrigeration compressor 5 ' cools off; Again cooled water is back in the holmium laser 8 ', xenon lamp 2 ', reflection cavity 3 ', holmium crystal 1 ' are carried out water-cooled.
The operation principle of water-cooling system needs the cooling that circulates of enough water; Because big water gaging flowing fast between xenon lamp 2 ', reflection cavity 3 ' and the holmium crystal 1 ' of hyperpyrexia produced the problem of contaminating impurity xenon lamp 2 ', reflection cavity 3 ', holmium crystal 1 ' in the water again.Also need be furnished with the heat that light that refrigeration compressor 5 ' sends these xenon lamps 2 ' produces simultaneously and loose, so can be equipped with the water circulation system 4 ' of big flow and the high-power refrigeration compressor 5 ' of multikilowatt in the holmium laser therapy machine of prior art.Thus; Power supply 6 ' in the holmium laser therapy machine, water circulation system 4 ', refrigeration compressor 5 ' will take a large amount of volume weights and produce lot of energy consumption; At present the holmium laser therapy machine of prior art generally in weight at 150 kilograms; 0.6 cubic metre of volume, power is on 3 kilowatts the order of magnitude.Will provide enough energy luminous by xenon lamp 2 ' on the one hand, have powerful cooling system that the heat that these light produce is loose on the one hand again, prevent again to pollute, the equipment that makes becomes huge and power consumption.
For this reason, design the holmium laser therapy machine that a kind of volume is little, energy expenditure is little necessity has just been arranged.In history; Because semiconductor laser is backward in technique, the laser of a lot of wavelength can not produce (for example, till now; The holmium laser of 2100 nano wave lengths just can not directly produce through semiconductor laser technique); Or the laser power that produces not enough (laser such as 790 nanometers just can only produce a watt level), or equipment is too complicated, makes and cannot use the pumping source of semiconductor laser as holmium laser.
Now because development of semiconductor make that the semiconductor laser generation is fully possible near wavelength at the light of 440 nanometers or 680 nanometers or 780 nanometer sections more, and its volume and price also is more satisfactory.
The utility model content
This utility model provides a kind of desktop holmium laser therapy machine of miniaturization; Adopt wavelength to excite the holmium crystal at the pump light of 440 nanometers or 680 nanometers or 780nm section; Its light quantity just in time can be by holmium element and relevant sensitization element absorption; Improved holmium generation of Laser efficient, also just can produce the saving energy, miniaturization holmium laser equipment.
For realizing above-mentioned purpose; This utility model provides a kind of desktop holmium laser therapy machine of miniaturization, and this therapy apparatus comprises power supply that holmium laser, circuit connect the holmium laser input, the optical fiber that is connected through the resonator cavity light path with the holmium laser outfan, the water circulation system that is connected with holmium laser;
Be characterized in that above-mentioned holmium laser comprises:
Reflection cavity;
The holmium crystal, it is fixed in the inner chamber of reflection cavity; And,
One or several semiconductor pumping sources, it is attached on the inwall of reflection cavity; The pump light of each semiconductor pumping sources all focuses on the holmium crystal;
The wave-length coverage of the pump light of above-mentioned semiconductor pumping sources output is at 440 nanometers or 680 nanometers or 780 nanometer sections.
Above-mentioned reflection cavity adopts optically focused cavity or common housing.
Above-mentioned semiconductor pumping sources adopts the semiconductor laser band.
In the above-mentioned holmium laser, semiconductor pumping sources is set in parallel in the crystalline side of holmium, the crystalline sidewall of pump light incident holmium of this semiconductor pumping sources, broadside holmium crystal.
Be not provided with compressor refrigeration system in the above-mentioned water circulation system.
The desktop holmium laser therapy machine of a kind of miniaturization of this utility model and the holmium laser therapy machine of prior art are compared, and its advantage is that this utility model adopts semiconductor laser as pumping source; The frequency range of its pump light is close with holmium crystal excitation frequency ranges, because the concordance of wavelength has improved holmium generation of Laser efficient; Because the lifting of laser transformation efficiency makes the decline of complete machine energy consumption, reduced the heat that holmium laser produces; Reduce the requirement of holmium laser, reduce the power of power supply, cancelled the compressor refrigeration system in the water-cooling system for power supply and water-cooling system; Only have than the little a lot of small-sized water-cooling system of existing holmium laser cooling system; Cut down the consumption of energy, reduced the volume of power supply and water-cooling system simultaneously, realize producing the desktop holmium laser therapy machine of low energy consumption miniaturization;
Be provided with reflection cavity in this utility model, make not shine directly into the crystalline light of holmium and can pass through reflection cavity reflection, continue to shine on the holmium crystal, improved the efficient of laser excitation.
Description of drawings
Fig. 1 is the sectional view of a kind of holmium laser embodiment in the prior art;
Fig. 2 is the sectional view of another kind of holmium laser embodiment in the prior art;
Fig. 3 is a chromium, thulium, holmium: yag crystal abosrption spectrogram;
Fig. 4 is the structured flowchart of holmium laser therapy machine in the prior art;
Fig. 5 is the sectional view of holmium laser in the desktop holmium laser therapy machine of a kind of miniaturization of this utility model;
Fig. 6 is the structured flowchart of the desktop holmium laser therapy machine of a kind of miniaturization of this utility model.
The specific embodiment
Below in conjunction with accompanying drawing, further specify the specific embodiment of this utility model.
As shown in Figure 5, be the sectional view of the holmium laser of the desktop holmium laser therapy machine of a kind of miniaturization of this utility model.This holmium laser includes reflection cavity 3, holmium crystal 1 and semiconductor pumping sources 2.
Reflection cavity 3 adopts the piped reflection cavity of circle; This reflection cavity 3 adopts the optically focused cavity, and (general section is an ellipse garden shape; Pumping source and crystal place respectively on the first and second oval focuses); Perhaps adopt the common housing (general section is for circular, and pumping source and crystal place respectively on the round center of circle and circular arc) that does not have the optically focused characteristics.
Holmium crystal 1 is made as strip structure, and its length is slightly less than the length of reflection cavity 3 inner chambers.Two ends of the two ends of this holmium crystal 1 and reflection cavity 3 are fixed, and make holmium crystal 1 be fixed on the center of reflection cavity 3, and overlap with reflection cavity 3 axis (or second focus of spheroid).
Semiconductor pumping sources 2 adopts the semiconductor laser band that is made as strip.Be provided with four semiconductor pumping sources 2 in the present embodiment, it is sticked respectively on the inwall of reflection cavity 3.These four semiconductor pumping sources 2 laterally arrange with holmium crystal 1, and the pump light of its emission all focuses on the holmium crystal 1.During work; Semiconductor pumping sources 2 emission pump lights are by the side direction incident holmium crystal 1 of holmium crystal 1; 2 pairs of holmium crystal of semiconductor pumping sources 1 carry out broadside in reflection cavity 3,, the light that does not shine directly into holmium crystal 1 simultaneously can pass through reflection cavity 3 reflections again; Continue to shine on the holmium crystal 1, finally launch holmium laser by the end of holmium crystal 1.
The wave-length coverage of the pump light of these semiconductor pumping sources 2 emissions is at 440 nanometers or 680 nanometers or 780 nanometer sections; Has concordance with the excitation wavelength range of holmium crystal 1; Its light quantity just in time can be absorbed by holmium element (containing relevant sensitization element), has improved holmium generation of Laser efficient.
As shown in Figure 6, the desktop holmium laser therapy machine of a kind of miniaturization of this utility model includes the water circulation system 4 of power supply 7, optical fiber 6 and the miniaturization of holmium laser 8, miniaturization.
Power supply 7 respectively with holmium laser 8 in four semiconductor pumping sources 2 circuit be connected, to four semiconductor pumping sources 2 power supply is provided.Because semiconductor pumping sources 2 has improved holmium generation of Laser efficient, requiring of the power supply 7 that provides to semiconductor pumping sources 2 in this holmium laser therapy machine is low, reduces power supply 7 needed outputs, also reduces the volume of power supply 7.
One of the holmium laser incident that holmium laser 8 is sent by holmium crystal 1 end forms resonator cavity by several optical glass systems; Through this resonator cavity form can practical application holmium laser; The outfan of this resonator cavity is connected with optical fiber 6, and the holmium laser therapy machine is actually used in the holmium laser of medical treatment through optical fiber 6 outputs.
Water circulation system 4 is connected with holmium laser 8, and this water circulation system 4 is as the water-cooling system of holmium laser 8, the circulation waterway of water circulation system 4 flow through reflection cavity 3, holmium crystal 1 and the semiconductor pumping sources 2 of holmium laser 8.Be used for the inner heats that produce of holmium laser 8 are taken away, transfer to the external world through current and distribute, when the water in the water circulation system 4 after external world's cooling, cool off holmium laser 8 repeated transmission input holmium laser 8 inside.
Be not provided with compressor refrigeration system in the water circulation system 4 that the holmium laser therapy machine of this utility model is adopted.Because semiconductor pumping sources 2 has improved holmium generation of Laser efficient; Effectively reduced in the holmium laser 8 heat because of unnecessary light energy produced; Make the requirement of 8 pairs of water-cooling systems of holmium laser reduce, the carrying out of flowing out holmium laser 8 in the water circulation system 4 imitated cooling by force so the water circulation system 4 of this utility model can not be provided with compressor refrigeration system.The cancellation compressor refrigeration system reduces the water-cooling system volume of holmium laser therapy machine greatly, has also saved the needed energy consumption of compressor refrigeration system work simultaneously.Promptly solved the energy expenditure problem, the bulky problem that solves again realizes the miniaturization and the portability of holmium laser therapy machine, and can place on the table.
Although the content of this utility model has been done detailed introduction through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to the restriction to this utility model.After those skilled in the art have read foregoing, for the multiple modification of this utility model with to substitute all will be conspicuous.Therefore, the protection domain of this utility model should be limited appended claim.
Claims (5)
1. the desktop holmium laser therapy machine of a miniaturization, this therapy apparatus comprise power supply (7) that holmium laser (8), circuit connect holmium laser (8) input, the optical fiber (6) that is connected through the resonator cavity light path with holmium laser (8) outfan, the water circulation system (4) that is connected with holmium laser (8);
It is characterized in that described holmium laser (8) comprises:
Reflection cavity (3);
Holmium crystal (1), it is fixed in the inner chamber of said reflection cavity (3); And,
One or several semiconductor pumping sources (2), it is attached on the inwall of said reflection cavity (3); The pump light of each said semiconductor pumping sources (2) all focuses on described holmium crystal (1);
The wave-length coverage of the pump light of said semiconductor pumping sources (2) output is at 440 nanometers or 680 nanometers or 780 nanometer sections.
2. the desktop holmium laser therapy machine of a kind of miniaturization as claimed in claim 1 is characterized in that, described reflection cavity (3) adopts optically focused cavity or common housing.
3. the desktop holmium laser therapy machine of a kind of miniaturization as claimed in claim 1 is characterized in that, described semiconductor pumping sources (2) adopts the semiconductor laser band.
4. the desktop holmium laser therapy machine of a kind of miniaturization as claimed in claim 1; It is characterized in that; In the described holmium laser (8); Semiconductor pumping sources (2) is set in parallel in the side of holmium crystal (1), the sidewall of the pump light incident holmium crystal (1) of this semiconductor pumping sources (2), broadside holmium crystal (1).
5. the desktop holmium laser therapy machine of a kind of miniaturization as claimed in claim 1 is characterized in that, described water circulation system is not provided with compressor refrigeration system in (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202353930U CN202589659U (en) | 2012-05-24 | 2012-05-24 | Miniaturized desktop holmium laser therapy apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202353930U CN202589659U (en) | 2012-05-24 | 2012-05-24 | Miniaturized desktop holmium laser therapy apparatus |
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| Publication Number | Publication Date |
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| CN202589659U true CN202589659U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012202353930U Expired - Lifetime CN202589659U (en) | 2012-05-24 | 2012-05-24 | Miniaturized desktop holmium laser therapy apparatus |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994454A (en) * | 2016-10-26 | 2018-05-04 | 财团法人工业技术研究院 | Laser device |
-
2012
- 2012-05-24 CN CN2012202353930U patent/CN202589659U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994454A (en) * | 2016-10-26 | 2018-05-04 | 财团法人工业技术研究院 | Laser device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |