CN117919021A - Optical path system for anterior ocular segment laser therapeutic apparatus and anterior ocular segment laser therapeutic apparatus - Google Patents
Optical path system for anterior ocular segment laser therapeutic apparatus and anterior ocular segment laser therapeutic apparatus Download PDFInfo
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- CN117919021A CN117919021A CN202410324212.9A CN202410324212A CN117919021A CN 117919021 A CN117919021 A CN 117919021A CN 202410324212 A CN202410324212 A CN 202410324212A CN 117919021 A CN117919021 A CN 117919021A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 65
- 230000001225 therapeutic effect Effects 0.000 title abstract description 48
- 238000011282 treatment Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims description 26
- 238000007493 shaping process Methods 0.000 claims description 10
- 230000010287 polarization Effects 0.000 claims description 9
- 238000013532 laser treatment Methods 0.000 claims description 2
- 238000002647 laser therapy Methods 0.000 claims 9
- 238000002560 therapeutic procedure Methods 0.000 claims 2
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention relates to the technical field of therapeutic instruments, in particular to an optical path system for an anterior ocular segment laser therapeutic instrument and the anterior ocular segment laser therapeutic instrument, which comprises: the laser assembly comprises an integrated fundamental frequency module and a frequency doubling module, and a prism and a first half-wave plate are arranged between the fundamental frequency module and the frequency doubling module; a first optical path assembly for monitoring a second light beam having a second wavelength; a second optical path assembly for monitoring a first light beam having a first wavelength; the treatment module is used for outputting a light beam with a set wavelength to the eyes. The invention provides an optical path system for a front eye section laser therapeutic instrument, which solves the technical problem that a frequency doubling module and a fundamental frequency module are easy to be misplaced in the traditional optical path system.
Description
Technical Field
The invention relates to the technical field of therapeutic instruments, in particular to an optical path system for an anterior ocular segment laser therapeutic instrument and the anterior ocular segment laser therapeutic instrument.
Background
The optical path system of the existing anterior segment laser therapeutic apparatus is shown in patent CN110198692a, and the frequency doubling module in the optical path system is movable, so that the relative position of the frequency doubling module and the fundamental frequency module can be changed during the frequent use process of the anterior segment therapeutic apparatus, so that the light beam output of the frequency doubling module is caused, and a larger error exists after the therapeutic light beam output of the anterior segment therapeutic apparatus, thereby seriously affecting the therapeutic effect of the anterior segment therapeutic apparatus.
Disclosure of Invention
The present invention is directed to solving at least one of the technical problems existing in the related art. Therefore, the invention provides the optical path system for the anterior segment laser therapeutic apparatus, which solves the technical problem that the frequency doubling module and the fundamental frequency module are easy to be misplaced in the traditional optical path system, and improves the stability of the output light beam of the frequency doubling module and the therapeutic effect of the anterior segment laser therapeutic apparatus by integrating the frequency doubling module and the fundamental frequency module into a component.
The invention provides an optical path system for an anterior ocular segment laser therapeutic apparatus, comprising:
The laser assembly comprises an integrated fundamental frequency module and a frequency multiplication module, wherein a prism and a first half wave plate are arranged between the fundamental frequency module and the frequency multiplication module, the fundamental frequency module is used for emitting a first light beam with a first wavelength, the frequency multiplication module is used for adjusting the first light beam with the first wavelength to a second light beam with a second wavelength, the first light beam enters the first half wave plate after being refracted by the prism, and then the first light beam enters the frequency multiplication module through the first half wave plate;
a first optical path assembly to monitor a second light beam having a second wavelength;
a second light path assembly to monitor a first light beam having a first wavelength;
The treatment module is used for outputting the light beam with the set wavelength to the eyes.
The invention further provides an optical path system for an anterior ocular segment laser therapeutic instrument, which is characterized in that the first optical path component comprises a first dichroic mirror corresponding to the frequency multiplication module and used for the second light beam to pass through, a first light shield, a first energy detection module, a second light shield and a first beam expansion component, wherein the first dichroic mirror is used for reflecting the first light beam.
The invention further improves an optical path system for an anterior ocular segment laser therapeutic instrument, wherein the first optical path component further comprises a shaping module arranged between the second light shield and the first beam expanding component, and the shaping module is used for adjusting the light spot distribution condition of the second light beam.
A further improvement of the optical path system for an anterior ocular segment laser therapeutic apparatus of the present invention is that the second optical path assembly includes:
a polarizing beam splitter disposed between the first shutter and the first dichroic mirror, the first light beam being reflected by the polarizing beam splitter to reach the first shutter;
the second energy detection module is arranged on the side part of the first light shield, which is far away from the polarization spectroscope, and is used for detecting the first light beam;
A third shutter disposed at a side of the second energy detection module remote from the first shutter; and
And the second beam expanding assembly is arranged on the side part of the third light shield away from the second energy detection module.
The invention further improves an optical path system for a anterior ocular segment laser therapeutic instrument, which is characterized in that the second optical path component further comprises a light receiving component arranged at the side part of the polarization beam splitter, which is far away from the first dichroic mirror, and a second half-wave plate arranged between the first dichroic mirror and the polarization beam splitter.
The invention further improves an optical path system for the anterior ocular segment laser therapeutic instrument, which is characterized by further comprising a temperature control component arranged on the frequency doubling module, wherein the temperature control component is connected with the first energy detection module.
The invention further improves an optical path system for an anterior ocular segment laser therapeutic instrument, which is characterized in that the therapeutic module comprises a first reflecting mirror arranged corresponding to the first optical path group, a second dichroic mirror arranged corresponding to the second optical path component and a focusing mirror arranged on the side part of the second dichroic mirror far away from the first reflecting mirror.
The invention further improves an optical path system for a anterior ocular segment laser therapeutic instrument, wherein the therapeutic module further comprises a spectroscope arranged at the side part of the first reflecting mirror far away from the second dichroic mirror, an optical filter arranged at the side part of the spectroscope far away from the first reflecting mirror, and a CCD camera arranged at the side part of the spectroscope.
The invention further improves an optical path system for a anterior ocular segment laser therapeutic instrument, which comprises an aiming mirror arranged between the first optical path component and the second optical path component, a second reflecting mirror and a third reflecting mirror arranged between the first reflecting mirror and the second dichroic mirror, wherein the aiming mirror is used for emitting a standard light beam, and the second reflecting mirror and the third reflecting mirror are used for reflecting the standard light beam into the focusing mirror and focusing the standard light beam into an indication point at the side part of the focusing mirror.
The invention also provides a anterior ocular segment laser therapeutic apparatus, which comprises the optical path system.
The optical path system for the anterior ocular segment laser therapeutic apparatus improves the stability of the output light beam of the frequency doubling module and the therapeutic effect of the anterior ocular segment laser therapeutic apparatus by integrating the frequency doubling module and the fundamental frequency module into one component, the shaping module is used for adjusting the light spot distribution condition of the second light beam, gaussian light can be shaped into ultra-Gaussian light, the focusing light spot of the second light beam at the action position is usually larger, the second light beam is shaped into ultra-Gaussian light, the light spot distribution of the second light beam can be more uniform, the therapeutic effect is improved, which light beam can be output by the combination mode of the first light shield, the second light shield and the third light shield, whether the second light beam exists or not is controlled by rotating the half wave plate in front of the frequency doubling crystal, the size of the second light beam is controlled by rotating the half wave plate in front of the frequency doubling crystal, the temperature control component is added on the frequency doubling module, the half wave plate is required to be in an optimal position state before the temperature is adjusted by the closed loop feedback loop formed by the first energy detection module, at the moment, the frequency doubling crystal is in an optimal matching state by the feedback temperature control component of the first energy detection module, and the frequency doubling crystal can be enabled to pass through the frequency doubling system after long-time use, and the optimal matching of the frequency doubling crystal can be ensured by the frequency doubling module and the best power compensation system.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an optical path system for an anterior ocular segment laser therapeutic apparatus provided by the present invention.
Fig. 2 is a schematic diagram of a first shutter in an optical path system for an anterior segment laser therapeutic apparatus according to the present invention.
Reference numerals:
11. a base frequency module; 12. a frequency multiplication module; 13. a prism; 14. a first half-wave plate;
21. A first dichroic mirror; 22. a first shutter; 221. a first light-passing hole; 222. a second light-passing hole; 223. a connection hole; 23. a first energy detection module; 24. a second shutter; 25. a shaping module; 26. a first beam expanding assembly;
31. a second half-wave plate; 32. a polarizing beamsplitter; 33. a light receiving assembly; 34. a second energy detection module; 35. a third shutter; 36. a second beam expanding assembly;
41. a first mirror; 42. a second dichroic mirror; 43. a focusing mirror; 44. a beam splitter; 45. a CCD camera; 46. a light filter;
51. Aiming light mirror; 52. a second mirror; 53. a third mirror;
6. An eye;
71. a first light beam; 72. a second light beam; 73. standard light beam.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
An optical path system for an anterior ocular segment laser treatment apparatus according to the present invention is described below with reference to fig. 1, comprising:
the laser assembly comprises an integrated fundamental frequency module 11 and a frequency doubling module 12, wherein a prism 13 and a first half-wave plate 14 are arranged between the fundamental frequency module 11 and the frequency doubling module 12, the fundamental frequency module 11 is used for emitting a first light beam 71 with a first wavelength, the frequency doubling module 12 is used for adjusting the first light beam 71 with the first wavelength to a second light beam 72 with a second wavelength, the first light beam 71 enters the first half-wave plate 14 after being refracted by the prism 13, and then the first light beam 71 enters the frequency doubling module 12 through the first half-wave plate 14;
a first optical path component for monitoring a second light beam 72 having a second wavelength;
a second optical path component for monitoring the first light beam 71 having the first wavelength;
the treatment module is used for outputting a light beam with a set wavelength to the eyes.
Preferably, the first beam 71 represents laser light of a wavelength of 1064nm and the second beam 72 represents laser light of a wavelength of 532 nm.
Preferably, the light beam is divided into two paths according to the wavelength difference after the frequency doubling module 12, the frequency doubling module 12 and the fundamental frequency module 11 are combined into a whole, and the whole module adopts invar or ceramic and other materials which are not easy to deform, so that the whole anti-detuning capability of the laser component is higher, the output stability of the light beam is improved, and the stability of the anterior ocular segment laser therapeutic instrument is improved.
In a preferred embodiment of the optical path system for a anterior segment laser therapeutic apparatus of the present invention, the first optical path component includes a first dichroic mirror 21 corresponding to the frequency doubling module 12 and through which the second beam 72 passes, a first shutter 22, a first energy detection module 23, a second shutter 24, and a first beam expanding component 26, and the first dichroic mirror 21 is used for reflecting the first beam 71.
Specifically, the first optical path assembly further includes a shaping module 25 disposed between the second shutter 24 and the first beam expanding assembly 26, and the shaping module 25 is configured to adjust a spot distribution of the second beam 72.
Preferably, the second beam 72 may be gaussian light, the shaping module 25 shapes the gaussian light into ultra-gaussian light, the focusing light spot of the acting position of the second beam 72 is generally larger, and shaping the second beam 72 into ultra-gaussian beam can make the light spot distribution of the second beam 72 more uniform, so as to improve the therapeutic effect.
Preferably, the first energy detection module 23 is a set of hardware modules including a photodetection element and a circuit processing part.
Preferably, the first beam expander assembly 26 is comprised of a set of beam expanders.
Further, the second optical path assembly includes:
A polarization beam splitter 32 disposed between the first shutter 22 and the first dichroic mirror 21, and the first light beam 71 reaches the first shutter 22 after being reflected by the polarization beam splitter 32;
The second energy detection module 34 is disposed on a side of the first shutter 22 away from the polarization beam splitter 32, and the second energy detection module 34 is configured to detect the first light beam 71;
A third shutter 35 provided at a side of the second energy detection module 34 remote from the first shutter 22; and
A second beam expanding assembly 36 disposed at a side of the third shutter 35 remote from the second energy detection module 34.
Preferably, the second energy detection module 34 is a set of hardware modules including a photodetection element and a circuit processing portion.
Preferably, the second beam expander assembly 36 is comprised of a set of beam expanders.
Preferably, the combination of the first shutter 22, the second shutter 24 and the third shutter 35 determines which light can be output, and the half wave plate in front of the frequency doubling crystal is rotated to control whether the second light beam 72 exists or not and control the size of the second light beam 72.
Specifically, as shown in fig. 2, the shadow part of the projection view of the first shutter 22 is a metal part for light blocking, the middle three holes are through holes, wherein the central through hole is a connecting hole 223 for screwing the screw to fix the first shutter 22, the through holes at both ends are a first light passing hole 221 for passing the first light beam 71 and a second light passing hole 222 for passing the second light beam 72, and the diameters of the first light passing hole 221 and the second light passing hole 222 are 4mm.
Specifically, when the anterior ocular segment laser therapeutic apparatus is in a test state, the second shutter 24 and the third shutter 35 are in a closed state, the triggering laser component only enables the first shutter 22 to open the first light beam 71 and the second light beam 72 to respectively enter the second energy detection module 34 and the first energy detection module 23 for monitoring, when the system program sets the first light beam 71 to pass, the first shutter 22 and the third shutter 35 can pass light, at the moment, the second shutter 24 blocks light, when the system program sets the second light beam 72 to pass, the first shutter 22 and the second shutter 24 can pass light, at the moment, the third shutter 35 blocks light, so that irreversible damage to eyes caused by the light beam when the light beam is wrongly injected into the eyes can be avoided, and double switches are added to the laser component, so that the probability of the light beam misinjected into the eyes is reduced.
Further, the second optical path assembly further includes a light receiving assembly 33 disposed at a side of the polarization beam splitter 32 away from the first dichroic mirror 21, and a second half-wave plate 31 disposed between the first dichroic mirror 21 and the polarization beam splitter 32.
Further, the frequency doubling module 12 further comprises a temperature control component arranged on the frequency doubling module 12, and the temperature control component is connected with the first energy detection module 23.
Preferably, a temperature control component is added to the frequency doubling module 12, before forming a closed loop feedback loop with the first energy detection module 23 to adjust the temperature, the half wave plate needs to be confirmed to be in an optimal position state, and at this time, according to the temperature of the temperature control component fed back by the first energy detection module 23, the frequency doubling crystal is in an optimal matching state.
Further, the treatment module includes a first mirror 41 disposed corresponding to the first optical path group, a second dichroic mirror 42 disposed corresponding to the second optical path group, and a focusing mirror 43 disposed at a side of the second dichroic mirror 42 away from the first mirror 41.
Further, the treatment module further includes a beam splitter 44 disposed at a side portion of the first reflecting mirror 41 away from the second reflecting mirror 42, a filter 46 disposed at a side portion of the beam splitter 44 away from the first reflecting mirror 41, and a CCD camera 45 disposed at a side portion of the beam splitter 44.
Preferably, a spectroscope 44 is added on the eye light receiving optical path, part of light is reflected upwards into a CCD camera 45, the CCD camera 45 can display and record the focusing state and the treatment condition of the light beam in real time, the setting mode can record the eye states before and after the treatment of the anterior ocular segment laser therapeutic apparatus in real time, the eye states can be used as treatment record backup, the camera image in the anterior ocular segment laser therapeutic apparatus can be transmitted to a remote expert in real time, the expert can conduct remote guidance according to the image in the CCD camera 45, even if no expert exists in a local hospital, the relevant diseases can be treated by operating the anterior ocular segment laser therapeutic apparatus in a remote expert guidance mode, and reasonable resource distribution is realized.
Further, the collimator 51 is disposed between the first light path component and the second light path component, and the second mirror 52 and the third mirror 53 are disposed between the first mirror 41 and the second dichroic mirror 42, the collimator 51 is configured to emit the standard light beam 73, and the second mirror 52 and the third mirror 53 are configured to reflect the standard light beam 73 into the focusing mirror 43 and focus the standard light beam at the side of the focusing mirror 43 as an indication point.
Preferably, the standard beam 73 is 635nm wavelength laser.
The invention also provides a anterior ocular segment laser therapeutic apparatus, which comprises the optical path system.
In the specific embodiment of the anterior ocular segment laser therapeutic apparatus of the present invention, when the first light beam 71 is required for treating the eye, the baseband module 11 emits the first light beam 71 with the laser beam having the wavelength of 1064nm, the first light beam 71 still enters the second light path component with the laser beam having the wavelength of 1064nm after passing through the frequency doubling module 12, and meanwhile, the collimator 51 emits the standard light beam 73 for indicating the point where the first light beam 71 acts on the eye 6, and the first light beam 71 emits the laser beam having the wavelength of 1064nm for treating the eye 6 through the therapeutic module;
When the second light beam 72 is needed for treating the eye, the baseband module 11 emits the first light beam 71, the first light beam 71 passes through the frequency doubling module 12 and becomes the second light beam 72 of the laser with the wavelength of 532nm, and then the second light path component enters the first light path component, meanwhile, the sighting telescope 51 emits the standard light beam 73 for indicating the point of acting the first light beam 71 on the eye 6, and the second light beam 72 passes through the treatment module and emits the laser with the wavelength of 532nm for treating the eye 6.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An optical path system for an anterior ocular segment laser treatment apparatus, comprising:
The laser assembly comprises an integrated fundamental frequency module and a frequency multiplication module, wherein a prism and a first half wave plate are arranged between the fundamental frequency module and the frequency multiplication module, the fundamental frequency module is used for emitting a first light beam with a first wavelength, the frequency multiplication module is used for adjusting the first light beam with the first wavelength to a second light beam with a second wavelength, the first light beam enters the first half wave plate after being refracted by the prism, and then the first light beam enters the frequency multiplication module through the first half wave plate;
a first optical path assembly to monitor a second light beam having a second wavelength;
a second light path assembly to monitor a first light beam having a first wavelength;
The treatment module is used for outputting the light beam with the set wavelength to the eyes.
2. The optical path system for an anterior ocular segment laser therapy device of claim 1, wherein the first optical path component comprises a first dichroic mirror corresponding to the frequency doubling module and through which the second light beam passes, a first shutter, a first energy detection module, a second shutter, and a first beam expanding component, the first dichroic mirror to reflect the first light beam.
3. The optical path system for an anterior ocular segment laser therapy device of claim 2, wherein the first optical path component further comprises a shaping module disposed between the second shutter and the first beam expansion component, the shaping module configured to adjust a spot profile of the second beam.
4. The optical path system for an anterior ocular segment laser therapy device of claim 2, wherein the second optical path component comprises:
a polarizing beam splitter disposed between the first shutter and the first dichroic mirror, the first light beam being reflected by the polarizing beam splitter to reach the first shutter;
the second energy detection module is arranged on the side part of the first light shield, which is far away from the polarization spectroscope, and is used for detecting the first light beam;
A third shutter disposed at a side of the second energy detection module remote from the first shutter; and
And the second beam expanding assembly is arranged on the side part of the third light shield away from the second energy detection module.
5. The optical path system for an anterior ocular segment laser therapy device of claim 4, wherein the second optical path assembly further comprises a light receiving assembly disposed on a side of the polarizing beamsplitter away from the first dichroic mirror and a second half-wave plate disposed between the first dichroic mirror and the polarizing beamsplitter.
6. The optical path system for an anterior ocular segment laser therapy apparatus of claim 2, further comprising a temperature control assembly disposed on the frequency doubling module, the temperature control assembly coupled to the first energy detection module.
7. The optical path system for an anterior ocular segment laser therapy device of claim 1, wherein the therapy module comprises a first mirror disposed corresponding to the first optical path set, a second dichroic mirror disposed corresponding to the second optical path set, and a focusing mirror disposed on a side of the second dichroic mirror away from the first mirror.
8. The optical path system for an anterior ocular segment laser therapy device of claim 7, wherein the therapy module further comprises a beam splitter disposed on a side of the first mirror away from the second mirror, a filter disposed on a side of the beam splitter away from the first mirror, and a CCD camera disposed on a side of the beam splitter.
9. The optical path system for an anterior ocular segment laser therapy device of claim 8, further comprising an aiming mirror disposed between the first and second optical path components and second and third mirrors disposed between the first and second mirrors, the aiming mirror configured to emit a standard beam, the second and third mirrors configured to reflect the standard beam into the focusing mirror and focus the standard beam into an indication spot at a side of the focusing mirror.
10. An anterior ocular segment laser therapy apparatus comprising an optical path system as claimed in any one of claims 1to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410324212.9A CN117919021B (en) | 2024-03-21 | 2024-03-21 | Optical path system for anterior ocular segment laser therapeutic apparatus and anterior ocular segment laser therapeutic apparatus |
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| CN202410324212.9A CN117919021B (en) | 2024-03-21 | 2024-03-21 | Optical path system for anterior ocular segment laser therapeutic apparatus and anterior ocular segment laser therapeutic apparatus |
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| CN116867546A (en) * | 2021-02-23 | 2023-10-10 | 吕贝克医疗激光中心有限公司 | Device for treating biological tissue |
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| WO2001037769A1 (en) * | 1999-11-22 | 2001-05-31 | Yaakov Amitai | Treating a target with a divided laser beam |
| US20020177844A1 (en) * | 2001-01-11 | 2002-11-28 | Mario Gerlach | Medical laser therapy device |
| EP2384727A1 (en) * | 2010-05-06 | 2011-11-09 | Meridian AG | Ophthalmic laser treatment system |
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| CN117919021B (en) | 2024-06-04 |
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