CN2826767Y - Dual wavelength laser generator for medical purpose - Google Patents
Dual wavelength laser generator for medical purpose Download PDFInfo
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- CN2826767Y CN2826767Y CN 200520122003 CN200520122003U CN2826767Y CN 2826767 Y CN2826767 Y CN 2826767Y CN 200520122003 CN200520122003 CN 200520122003 CN 200520122003 U CN200520122003 U CN 200520122003U CN 2826767 Y CN2826767 Y CN 2826767Y
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Abstract
The utility model relates to a dual wavelength laser generator for medical purpose, which includes a neodymium-doped yttrium aluminium garnet laser crystal; A laser output mirror is positioned at one side of the crystal and perpendicular to an optical axis of the crystal; A first reflecting mirror is positioned on the other side of the crystal and perpendicular to the optical axis of the crystal; A second reflecting mirror is positioned between the crystal and the first reflecting mirror to form the 45 degree angle with the optical axis of the crystal; A third reflecting mirror is positioned at one side of the second reflecting mirror to form the 45 degree angle with the second reflecting mirror and paralleled with the optical axis of the crystal; A first diaphragm, is positioned between the first reflecting mirror and the second reflecting mirror; A first control lever, is connected with the first diaphragm and used for controlling the first diaphragm; An electric control mechanism is connected with the first control lever and used for controlling the first control lever; the laser output mirror and the first reflecting mirror comprise a two-mirror resonant cavity with the laser of 1.06 micrometer wavelength; the laser output mirror, the second reflecting mirror and the third reflecting mirror comprise a three-mirror resonant cavity with the laser of 1.44 micrometer wavelength. The dual wavelength laser generator for medical purpose can efficiently cut tissues in vaporized method and favorably coagulate and stop bleeding.
Description
Technical field
The utility model relates to a kind of medical dual-wavelength laser generating means, especially a kind of medical dual-wavelength laser generating means that can produce 1.44 micron wave length laser and 1.06 micron wave length laser.
Background technology
Laser has high brightness (high power) and high directivity (forming high power density/high-energy-density), and laser is easy to control and light is focused on a bit, and the laser of some wavelength can also be used fiber optic transmission, imports light into body cavity.Laser also has characteristics such as monochromaticjty (selectivity that is beneficial to different material absorbs) and coherence, makes laser obtain extensive use in medical science.Wherein most of medical applications are that the thermal effect of utilizing laser energy is solidified, carbonization, vaporization tissue, when injected organism tissue is melted or cut and reach the purpose of treatment.
Owing to contain 80% the moisture of having an appointment in the tissue, so water can characterize absorption the holding property of human body to laser to a certain extent to the absorption of various different wave length laser.As shown in Figure 1, water is 2.94 microns er-doped yttrium-aluminium-garnet (Er:YAG) laser, 10.6 microns CO to wavelength
2The absorptivity of mixing holmium yttrium-aluminium-garnet (Ho:YAG) laser of laser and 2.09 microns is each high about 4,3 and 2 magnitude of neodymium-doped yttrium-aluminum garnet (Nd:YAG) laser of 1.06 microns than wavelength, their energy is just all absorbed when infiltrating more shallow human body, therefore can moment just with tissue vaporization, so have good cutting, can be used for surgical cut.But Er:YAG laser can not transmit by silica fiber, can only transmit with special optical fiber, yet the price of special optical fiber is very expensive.And Ho:YAG laser strict to working temperature, it is just very low to be higher than 5 ℃ of lasing efficiencies, because of output reduces and can not use.Otherwise,, therefore have the ability of solidified structure and hemostasis preferably because water is little to 1.06 microns laser absorption rate.
The Nd:YAG laser of widely-used 1.06 micron wave lengths undergos surgery and treats in laser medicine, 1.06 having, the Nd:YAG laser of micron wave length gos deep into the dark advantage of when injected organism tissue, the degree of depth of infiltrating when injected organism tissue can reach 10mm, thereby has the effect of solidified structure and hemostasis preferably.But its dissection is relatively poor, need make with tens of watts of laser powers to organize in when cutting progressively to add thermocoagulation and tissue could be cut open after carbonization and vaporization, so cutting speed is slow, and wound is big, and the wound after the carbonization is not easy healing.
The utility model content
The purpose of this utility model provides a kind of medical dual-wavelength laser generating means, can have good solidified structure and haemostatic effect when vaporizing effectively and cutting and organizing.
For achieving the above object, the utility model provides a kind of medical dual-wavelength laser generating means, comprise a nd yag doubled-frequency laser crystal that can produce 1.06 microns, 1.32 microns and 1.44 micron wave length laser transitions, also comprise: a laser output mirror, be positioned at a side of described laser crystal, and vertical with the optical axis of described laser crystal; One first speculum is positioned at the opposite side of described laser crystal, and vertical with the optical axis of described laser crystal; One second speculum, between described laser crystal and described first speculum, and with the optical axis of described laser crystal angle at 45; One the 3rd speculum is positioned at a side of described second speculum, with described second speculum angle at 45, and parallel with the optical axis of described laser crystal; One first diaphragm is between described first speculum and second speculum; One first control lever is connected with described first diaphragm, is used for controlling first diaphragm; One electrical control mechanism is connected with described first control lever, is used for controlling first control lever; The described laser output mirror and first speculum are formed two mirror resonant cavitys of 1.06 micron wave length laser, and described laser output mirror, second speculum and the 3rd speculum are formed three mirror resonant cavitys of 1.44 micron wave length laser.
Described laser output mirror is coated with laser half-transmitting and half-reflecting to 1.06 micron wave lengths, to the high transmission of laser of 1.32 micron wave lengths and to the rete of the laser part transmission of 1.44 micron wave lengths.Described first speculum is coated with to the high reflection of the laser of 1.06 micron wave lengths with to the rete of the high transmission of laser of 1.32 micron wave lengths.Described second speculum is coated with to the high transmission of laser of the laser of 1.32 micron wave lengths and 1.06 micron wave lengths and to the rete of the high reflection of the laser of 1.44 micron wave lengths.Described the 3rd speculum is coated with to the high transmission of laser of the laser of 1.32 micron wave lengths and 1.06 micron wave lengths and to the rete of the high reflection of the laser of 1.44 micron wave lengths.
Between described second speculum and the 3rd speculum, also have one second diaphragm, described second diaphragm is connected with second control lever, and described second control lever is connected with described electrical control mechanism again.
Described diaphragm can be replaced by baffle plate.
Therefore, medical dual-wavelength laser generating means of the present utility model can be exported the laser of 1.44 microns and 1.06 microns two kinds of wavelength producing respectively, so both realize vaporizing effectively and cutting and organizing, and has good solidified structure and haemostatic effect again.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is the absorption curve of water to different wave length laser.
Fig. 2 is the structural representation of the medical dual-wavelength laser generating means of the utility model.
Fig. 3 is the structural representation of another embodiment of the medical dual-wavelength laser generating means of the utility model.
Embodiment
The utility model is to utilize laser crystal to send the laser of 1.44 microns and 1.06 micron wave lengths, thereby can vaporize effectively and cut when injected organism tissue, has good solidifying and anastalsis again.
As shown in Figure 1, be the absorption curve of water to different wave length laser, water is to the absorptivity of the Nd:YAG laser of 1.44 micron wave lengths high 2 multiple order of magnitude of Nd:YAG laser than 1.06 micron wave lengths, and it is slightly higher than Ho:YAG laser, only can infiltrate and organize about 0.4 millimeter, therefore have the performance that vaporization preferably cuts and organizes.In addition, it can transmit by silica fiber, so not only handled easily but also have cutting effect preferably is lower than Ho:YAG laser cost.
1.44 the Nd:YAG laser of micron has the performance that good vaporization cuts and organizes, and 1.06 microns Nd:YAG laser has the performance of solidified structure hemostasis preferably.The utility model is exactly the laser output that will obtain these two wavelength in the laser of same Nd:YAG crystal.
The Nd:YAG laser amplifies the output except the laser of 1.06 micron wave lengths can form vibration, and the laser of 1.32 microns and 1.44 micron wave lengths also may form vibration, difficultly realizes that laser generation is amplified and exports for a short time but gain.1.32 the cutting of micron wave length laser and anthemorrhagic performance are between the laser of 1.06 microns and 1.44 micron wave lengths, property difference is little, therefore only the laser generation of 1.06 microns and 1.44 micron wave lengths need be amplified to export to get final product.
As shown in Figure 2, be structural representation of the present utility model, comprise laser crystal 5, laser output mirror 1, first speculum 4, second speculum 2, the 3rd speculum 3, first diaphragm 6, first control lever 7 and electrical control mechanism 8.
Laser crystal 5 is the neodymium-doped yttrium-aluminum garnet crystal, laser output mirror 1 is positioned at a side of laser crystal 5, vertical with the optical axis of laser crystal, and be coated with laser 85% reflection of 1.44 micron wave lengths and the rete of 15% transmission, to the rete of the high transmission of laser of 1.32 micron wave lengths with to the rete of the laser half-transmitting and half-reflecting of 1.06 micron wave lengths, first speculum 4 is positioned at the opposite side of laser crystal 5, vertical with the optical axis of laser crystal, and be coated with to the rete of the high reflection of the laser of 1.06 micron wave lengths with to the rete of the high transmission of laser of 1.32 micron wave lengths, second speculum 2 is between the laser crystal 5 and first speculum 4, with the optical axis of laser crystal angle at 45, the 3rd speculum 3 is positioned at a side of second speculum 2, with second speculum, 2 angles at 45, and parallel with the optical axis of laser crystal, second speculum 2 and the 3rd reflection 3 mirrors all are coated with to the rete of the high transmission of laser of the laser of 1.32 micron wave lengths and 1.06 micron wave lengths and to the rete of the high reflection of laser of 1.44 micron wave lengths.Thus, laser output mirror 1, second speculum 2 and the 3rd speculum 3 have been formed first resonant cavity (three mirror cavity) of 1.44 micron wave length laser; The laser output mirror 1 and first speculum 4 have been formed second resonant cavity (two mirror chambeies) of 1.06 micron wave length laser.
Laser crystal 5 can produce the laser transition that wavelength is 1.06 microns, 1.32 microns and 1.44 micron wave lengths.Because the laser output mirror 1 of composition first resonant cavity is coated with the rete to laser 85% reflection of 1.44 micron wave lengths, and second speculum 2 and the 3rd speculum 3 all are coated with the rete to the high reflection of laser of 1.44 micron wave lengths, therefore the laser transition of the 1.44 micron wave lengths amplification of can in first resonant cavity, vibrate, and export by laser output mirror 1.Again because the laser output mirror 1 of composition second resonant cavity is coated with the rete to the laser half-transmitting and half-reflecting of 1.06 micron wave lengths, first speculum 4 is coated with the rete to the high reflection of laser of 1.06 micron wave lengths, and second speculum 2 in the light path is coated with the rete to the high transmission of laser of 1.06 micron wave lengths, only be equivalent to one and insert loss, therefore the laser transition of the 1.06 micron wave lengths amplification of can in second resonant cavity, vibrate, and export by laser output mirror 1.Again because laser output mirror 1, first speculum 4, second speculum 2 and the 3rd speculum 3 all to the high transmission of laser of 1.32 micron wave lengths, thereby the vibration that has suppressed 1.32 micron wave length laser is amplified.
As shown in Figure 3, be the structural representation of another embodiment of the present utility model.The structure of a present embodiment and a last embodiment is basic identical, and difference is to have increased by second diaphragm 9 and second control lever 10.Second diaphragm 9 is between second speculum 2 and the 3rd speculum 3, and electrical control mechanism 8 is by second control lever, 10 controls, second diaphragm 9.
In mechanical switch mode, can adopt both feet to step on switch, a foot switch is by controlling the output of controlling laser that turns on and off of generating device of laser power supply, another foot switch is controlled first control lever 7 and second control lever 10 by control electrical control mechanism 8, control moving of first diaphragm 6 in the light path and second diaphragm 9 thus, thereby can export the laser of 1.06 micron wave lengths or the laser of 1.44 micron wave lengths separately.And in the program control switch mode, control electrical control mechanism 8 by electronic circuit by the program that can be provided with, thereby control first control lever 7 and second control lever 10, and control moving of first diaphragm 6 and second diaphragm 9 thus, thereby also can export the laser of 1.06 micron wave lengths or 1.44 micron wave lengths separately.And can set the output time of these two kinds of wavelength lasers.Therefore realized both can vaporizing effectively and cut and organize, had good solidified structure and haemostatic effect again.
Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field should be appreciated that still and can make amendment or the part technical characterictic is equal to replacement embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (9)
1, a kind of medical dual-wavelength laser generating means comprises a nd yag doubled-frequency laser crystal that can produce 1.06 microns, 1.32 microns and 1.44 micron wave length laser transitions, it is characterized in that also comprising:
One laser output mirror is positioned at a side of described laser crystal, and vertical with the optical axis of described laser crystal;
One first speculum is positioned at the opposite side of described laser crystal, and vertical with the optical axis of described laser crystal;
One second speculum, between described laser crystal and described first speculum, and with the optical axis of described laser crystal angle at 45;
One the 3rd speculum is positioned at a side of described second speculum, with described second speculum angle at 45, and parallel with the optical axis of described laser crystal;
One first diaphragm is between described first speculum and second speculum;
One first control lever is connected with described first diaphragm, is used for controlling first diaphragm;
One electrical control mechanism is connected with described first control lever, is used for controlling first control lever;
The described laser output mirror and first speculum are formed two mirror resonant cavitys of 1.06 micron wave length laser, and described laser output mirror, second speculum and the 3rd speculum are formed three mirror resonant cavitys of 1.44 micron wave length laser.
2, medical dual-wavelength laser generating means according to claim 1, it is characterized in that: described laser output mirror is coated with the laser half-transmitting and half-reflecting to 1.06 micron wave lengths, to the high transmission of laser of 1.32 micron wave lengths, and to the rete of the laser part transmission of 1.44 micron wave lengths.
3, medical dual-wavelength laser generating means according to claim 1 is characterized in that: described first speculum is coated with to the high reflection of the laser of 1.06 micron wave lengths with to the rete of the high transmission of laser of 1.32 micron wave lengths.
4, medical dual-wavelength laser generating means according to claim 1 is characterized in that: described second speculum is coated with to the high transmission of laser of the laser of 1.32 micron wave lengths and 1.06 micron wave lengths and to the rete of the high reflection of the laser of 1.44 micron wave lengths.
5, medical dual-wavelength laser generating means according to claim 1 is characterized in that: described the 3rd speculum is coated with to the high transmission of laser of the laser of 1.32 micron wave lengths and 1.06 micron wave lengths and to the rete of the high reflection of the laser of 1.44 micron wave lengths.
6, medical dual-wavelength laser generating means according to claim 1 is characterized in that: described first diaphragm can be a baffle plate.
7, medical dual-wavelength laser generating means according to claim 1, it is characterized in that: between described second speculum and the 3rd speculum, also have one second diaphragm, described second diaphragm is connected with second control lever, and described second control lever is connected with described electrical control mechanism.
8, medical dual-wavelength laser generating means according to claim 7 is characterized in that: described first diaphragm can be a baffle plate.
9, according to claim 7 or 8 described medical dual-wavelength laser generating meanss, it is characterized in that: described second diaphragm can be a plate washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122003 CN2826767Y (en) | 2005-09-15 | 2005-09-15 | Dual wavelength laser generator for medical purpose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122003 CN2826767Y (en) | 2005-09-15 | 2005-09-15 | Dual wavelength laser generator for medical purpose |
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|---|---|
| CN2826767Y true CN2826767Y (en) | 2006-10-11 |
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| CN 200520122003 Expired - Fee Related CN2826767Y (en) | 2005-09-15 | 2005-09-15 | Dual wavelength laser generator for medical purpose |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454690C (en) * | 2007-04-11 | 2009-01-21 | 北京光电技术研究所 | Apparatus and method for harmonizing multi-wavelength laser output |
| WO2018035813A1 (en) * | 2016-08-25 | 2018-03-01 | 深圳大学 | Dual-frequency optical source |
| CN108814712A (en) * | 2018-04-23 | 2018-11-16 | 中国科学院理化技术研究所 | A kind of recombination laser medical device and method that cutting is performed the operation parallel with hemostasis |
| CN109044526A (en) * | 2018-07-03 | 2018-12-21 | 瑞尔通(苏州)医疗科技有限公司 | A kind of dual laser and laser therapeutic apparantus |
| CN112914722A (en) * | 2021-03-04 | 2021-06-08 | 广州市激光技术应用研究所有限公司 | Laser operation device |
-
2005
- 2005-09-15 CN CN 200520122003 patent/CN2826767Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454690C (en) * | 2007-04-11 | 2009-01-21 | 北京光电技术研究所 | Apparatus and method for harmonizing multi-wavelength laser output |
| WO2018035813A1 (en) * | 2016-08-25 | 2018-03-01 | 深圳大学 | Dual-frequency optical source |
| CN108814712A (en) * | 2018-04-23 | 2018-11-16 | 中国科学院理化技术研究所 | A kind of recombination laser medical device and method that cutting is performed the operation parallel with hemostasis |
| CN108814712B (en) * | 2018-04-23 | 2020-06-16 | 中国科学院理化技术研究所 | Composite laser medical device and method for cutting and hemostasis parallel operation |
| CN109044526A (en) * | 2018-07-03 | 2018-12-21 | 瑞尔通(苏州)医疗科技有限公司 | A kind of dual laser and laser therapeutic apparantus |
| CN109044526B (en) * | 2018-07-03 | 2024-05-07 | 瑞尔通(苏州)医疗科技有限公司 | Dual wavelength laser and laser therapeutic instrument |
| CN112914722A (en) * | 2021-03-04 | 2021-06-08 | 广州市激光技术应用研究所有限公司 | Laser operation device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061011 Termination date: 20120915 |