CN106389004B - A kind of laser adapter and Fundus laser therapeutic equipment that hot spot is continuously adjustable - Google Patents
A kind of laser adapter and Fundus laser therapeutic equipment that hot spot is continuously adjustable Download PDFInfo
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- CN106389004B CN106389004B CN201510460268.8A CN201510460268A CN106389004B CN 106389004 B CN106389004 B CN 106389004B CN 201510460268 A CN201510460268 A CN 201510460268A CN 106389004 B CN106389004 B CN 106389004B
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- hot spot
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Abstract
The present invention is suitable for technical field of medical equipment, a kind of laser adapter that hot spot is continuously adjustable is provided, including input optical fibre and the imaging lens group, collimating mirror and the focus lamp that are set on the laser output light path of input optical fibre；Imaging lens group is to laser imaging, form the first hot spot that Energy distribution is flat-top distribution, the object space focal plane of collimating mirror is overlapped with the first hot spot, the collimated light beam that collimating mirror exports is focused on light-receiving surface and forms the second hot spot by focus lamp, and the linkage of imaging lens group and collimating mirror keeps the second hot spot continuously adjustable.Laser imaging is the first hot spot of flat-top distribution by imaging lens group by the present invention, and the Energy distribution state of the second hot spot and the first hot spot is almost the same, therefore its light spot energy is uniform, edge clear is sharp keen, size is true and reliable, and therapeutic effect is obviously improved；The consecutive variations that the second spot size is realized by the linkage of imaging lens group and collimating mirror are more convenient for changing treatment region according to actual lesion situation, promote therapeutic effect and efficiency.
Description
Technical field
The invention belongs to the field of medical instrument technology, in particular to the continuously adjustable laser adapter of a kind of hot spot and eyeground
Laser therapeutic apparantus.
Background technique
Fundus laser therapeutic equipment is by laser irradiation to eyeground, and fundus tissue absorbs the energy heating of laser, is made in tissue
Protein denaturation solidification, achieve the purpose that the various retinopathies for the treatment of.At present clinically mainly with its therapeutic community's serosity arteries and veins
Network film retinopathy, view inner membrance ceasma, retinal detachment, diabetic retinopathy, treating senile maculopathy, retina
The eyeground pathological changes such as vein obstruction, retinal vasculitis, Retinal neoplasms.
Laser adapter is the main optical transmission system of Fundus laser therapeutic equipment, is usually combined with slit-lamp microscope
It uses, performance directly affects the quality for being irradiated to hot spot on eyeground.In the prior art, the laser adapter of hot spot continuous variable
Typically Gaussian Profile, center is bright, and edge is dark, and when treatment will lead to the tissue overheating of spot center, and the group at hot spot edge
It knits and does not reach therapeutic effect, treatment is uneven.
Summary of the invention
The purpose of the present invention is to provide the laser adapters that a kind of hot spot is continuously adjusted, it is intended to make to be irradiated to swashing for eyeground
Light light spot energy is uniform, edge clear, improves therapeutic effect.
The invention is realized in this way the laser adapter that a kind of hot spot is continuously adjustable, including input optical fibre and setting
Imaging lens group, collimating mirror and focus lamp on the laser output light path of the input optical fibre；The imaging lens group pair
The laser imaging forms the first hot spot that Energy distribution is flat-top distribution, the object space focal plane of the collimating mirror and described first
Hot spot be overlapped, the focus lamp by the collimated light beam that the collimating mirror exports focus on light-receiving surface formed the second hot spot, it is described at
As lens group and collimating mirror can be moved along the direction for being parallel to optical path, keep second hot spot continuously adjustable.
Another object of the present invention is to provide a kind of Fundus laser therapeutic equipment, including laser light source and for by laser
It conducts to the laser adapter of diseased region, the laser adapter includes input optical fibre and is set to the input optical fibre
Imaging lens group, collimating mirror and focus lamp on laser output light path；The laser forms energy by the imaging lens group
Amount is distributed as the first hot spot of flat-top distribution, and the object space focal plane of the collimating mirror is overlapped with first hot spot, the focus lamp
The collimated light beam that the collimating mirror exports is focused on into diseased region and forms the second hot spot, the imaging lens group and collimating mirror can
It is moved along the direction for being parallel to optical path, keeps second hot spot continuously adjustable.
The output laser imaging of input optical fibre is the first light by imaging lens group by laser adapter provided by the invention
Spot, it is flat-top distribution that first hot spot and the Energy distribution at input optical fibre light output end are almost the same, then by collimating mirror and
Focus lamp forms the second hot spot, and almost the same with the Energy distribution state of the first hot spot, light spot energy is uniform, edge clear is sharp
Benefit, size are true and reliable, and therapeutic effect is obviously improved；The second spot size is realized by the linkage of imaging lens group and collimating mirror
Consecutive variations, be more convenient for changing treatment region according to actual lesion situation, promote therapeutic effect and efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the continuously adjustable laser adapter of hot spot provided in an embodiment of the present invention；
Fig. 2 is another structural schematic diagram of the continuously adjustable laser adapter of hot spot provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of Fundus laser therapeutic equipment provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Specific implementation of the invention is described in detail below in conjunction with specific embodiment:
Referring to FIG. 1, the embodiment of the present invention provides a kind of laser adapter that hot spot is continuously adjustable comprising input optical fibre
1 and the imaging lens group 2, collimating mirror 3 and the focus lamp 4 that are set on the laser output light path of input optical fibre 1；Imaging len
The laser imaging of group 2 pairs of input optical fibres 1 output, forms the first hot spot S1 that Energy distribution is flat-top distribution, the object space of collimating mirror 3
Focal plane is overlapped with the first hot spot S1, can be exported laser with collimated light beam, focus lamp 4 gathers the collimated light beam that collimating mirror 3 exports
Coke forms the second hot spot S2 in light-receiving surface, and imaging lens group 2 and collimating mirror 3 can move along the direction for being parallel to optical path, makes the
Two hot spot S2 are continuously adjustable.
Wherein, the Laser beam energy distribution of the light output end of input optical fibre 1 is more uniform, by imaging len after laser output
Group 2 forms circular first hot spot S1, the Energy distribution of the light output end of the Energy distribution and input optical fibre 1 of first hot spot S1
It is identical or similar, it is flat-top distribution.So-called flat-top distribution: refer to that light distribution is uniform in beam cross-section, energy
Distribution curve is square wave.The collimated mirror 3 of light beam of first hot spot S1 is exported with collimated light beam, and the collimated light beam is by focus lamp 4
It is focused to the second hot spot S2, the Energy distribution of second hot spot S2 and the first hot spot S1 are essentially identical or of slight difference, therefore,
Second hot spot S2 also has the light energy distribution feature of the light output end of input optical fibre.Imaging lens group 2 is moved along before and after optical path
The dynamic size that can change the first hot spot S1, collimating mirror 3 and imaging lens group 2 move the object space focal plane for keeping collimating mirror 3 simultaneously
It is overlapped with the first hot spot S1, and then guarantees that collimating mirror 3 exports collimated light beam and do not change the biography between collimating mirror 3 and focus lamp 4
As ratio, the size of the second hot spot S2 changes simultaneously with the first hot spot S1, realizes that the second hot spot S2's is continuously adjustable.
Also, for the laser adapter treated for eyeground, the second hot spot acts on diseased region, and axial position is wanted
It aspires for stability constant.The light output end of input optical fibre 1 is usually fixed constant, passes through the linkage of imaging lens group 2 and collimating mirror 3
The size and location of the first hot spot S1 and the size of the second hot spot S2 can be changed, as long as keeping focus lamp 4 with respect to input optical fibre 1
Light output end position it is constant, so that it may guarantee that the axial position of the second hot spot S2 is constant, and then can carry out safe and reliable
Eyeground treatment.
With further reference to Fig. 2, scanning galvanometer 5, the scanning galvanometer 5 peace can also be set between collimating mirror 3 and focus lamp 4
On output light path loaded on collimating mirror 3, the output light path of mirror surface and collimating mirror 3 is angled, and mirror surface can be turned
It is dynamic, and then laser is reflected to different directions, then is focused by focus lamp 4, realize scanning.Specifically, scanning galvanometer is to pass through
The object focus of focus lamp and perpendicular to the straight line of the optical axis direction of collimating mirror be axis rotate, collimating mirror output collimated light beam shine
The center in the hot spot on scanning galvanometer is penetrated to be located in the object focus of focus lamp so that galvanometer reflect during rotation it is flat
Row light beam forms the second hot spot S2 by focus lamp, and second hot spot is in eyeground treatment region transverse shifting.
Laser adapter provided in an embodiment of the present invention by imaging lens group 2 by the output laser imaging of input optical fibre 1,
It is equivalent to and the Energy distribution at 1 light output end of input optical fibre is transferred to the first hot spot S1, then by 4 shape of collimating mirror 3 and focus lamp
It is almost the same with the Energy distribution state of the first hot spot S1 at the second hot spot S2, avoid the Gaussian Profile shape of light spot energy
State, light spot energy is uniform, edge clear is sharp keen, size is true and reliable, and therapeutic effect is obviously improved；And pass through imaging lens group
2 and collimating mirror 3 linkage realize the second hot spot S2 size consecutive variations, be more convenient for according to actual lesion situation change treatment region
Domain promotes therapeutic effect and efficiency；It keeps focus lamp 4 constant with respect to the position of the light output end of input optical fibre 1, the second light can be made
The axial position of spot S2 stablizes treatment that is constant, and then carrying out safe and reliable.
The present invention further provides a kind of Fundus laser therapeutic equipments, mention with reference to Fig. 3, including laser light source 01 and the present invention
The continuously adjustable laser adapter 02 of the hot spot of confession, input optical fibre 1 of the laser through laser adapter 02 that laser light source 01 exports
Input, forms the first hot spot S1 using imaging lens group 2, forms the second hot spot S2 by collimating mirror 3 and focus lamp 4, passes through
The linkage variation of imaging lens group 2 and collimating mirror 3 changes the size of the second hot spot S2, and passes through the position of fixed-focus mirror 4
The position of the second hot spot S2 is kept to immobilize, to carry out Fundus laser treatment.
The Fundus laser therapeutic equipment uses above-mentioned laser adapter, treats the light spot energy uniformity of lesion, edge
Clear sharp keen, size is true and reliable, effectively improves therapeutic effect and efficiency, and not will increase great amount of cost and operation difficulty.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of continuously adjustable laser adapter of hot spot, which is characterized in that including input optical fibre and be set to the input
Imaging lens group, collimating mirror and focus lamp on the laser output light path of optical fiber；The laser passes through the imaging lens group
The first hot spot that Energy distribution is flat-top distribution is formed, the object space focal plane of the collimating mirror is overlapped with first hot spot, described
The collimated light beam that the collimating mirror exports is focused on light-receiving surface and forms the second hot spot, the imaging lens group and collimation by focus lamp
Mirror can be moved along the direction for being parallel to optical path, keep second hot spot continuously adjustable.
2. the continuously adjustable laser adapter of hot spot as described in claim 1, which is characterized in that the energy of first hot spot
It is distributed identical as the Energy distribution of the light output end of the input optical fibre.
3. the continuously adjustable laser adapter of hot spot as described in claim 1, which is characterized in that the energy of second hot spot
It is distributed identical as the Energy distribution of first hot spot.
4. the continuously adjustable laser adapter of hot spot as described in claim 1, which is characterized in that in the collimating mirror and focusing
Scanning galvanometer is equipped between mirror, the scanning galvanometer is by the object focus of the focus lamp and perpendicular to the collimating mirror
The straight line of optical axis direction is axis rotation, and the collimated light beam of the collimating mirror output is irradiated in the hot spot on the scanning galvanometer
The heart is located in the object focus of the focus lamp.
5. the continuously adjustable laser adapter of hot spot as described in claim 1, which is characterized in that the focus lamp is relative to institute
The position for stating the light output end of input optical fibre immobilizes.
6. a kind of Fundus laser therapeutic equipment, which is characterized in that including laser light source and be used for laser conduction to diseased region
Laser adapter, the laser adapter includes input optical fibre and is set on the laser output light path of the input optical fibre
Imaging lens group, collimating mirror and focus lamp；The laser forms Energy distribution by the imaging lens group as flat-top point
First hot spot of cloth, the object space focal plane of the collimating mirror are overlapped with first hot spot, and the focus lamp is defeated by the collimating mirror
Collimated light beam out focuses on diseased region and forms the second hot spot, and the imaging lens group and collimating mirror can be along being parallel to optical path
Direction it is mobile, keep second hot spot continuously adjustable.
7. Fundus laser therapeutic equipment as claimed in claim 6, which is characterized in that the Energy distribution of first hot spot with it is described
The Energy distribution of the light output end of input optical fibre is identical.
8. Fundus laser therapeutic equipment as claimed in claim 6, which is characterized in that the Energy distribution of second hot spot with it is described
The Energy distribution of first hot spot is identical.
9. Fundus laser therapeutic equipment as claimed in claim 6, which is characterized in that be equipped between the collimating mirror and focus lamp
Scanning galvanometer, the scanning galvanometer is by the object focus of the focus lamp and perpendicular to the optical axis direction of the collimating mirror
Straight line is axis rotation, and the center that the collimated light beam of the collimating mirror output is irradiated in the hot spot on the scanning galvanometer is located at described
In the object focus of focus lamp.
10. Fundus laser therapeutic equipment as claimed in claim 6, which is characterized in that the focus lamp is relative to the input light
The position of fine light output end immobilizes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510460268.8A CN106389004B (en) | 2015-07-29 | 2015-07-29 | A kind of laser adapter and Fundus laser therapeutic equipment that hot spot is continuously adjustable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510460268.8A CN106389004B (en) | 2015-07-29 | 2015-07-29 | A kind of laser adapter and Fundus laser therapeutic equipment that hot spot is continuously adjustable |
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| CN106389004A CN106389004A (en) | 2017-02-15 |
| CN106389004B true CN106389004B (en) | 2018-12-07 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11679031B2 (en) | 2017-08-17 | 2023-06-20 | Lutronic Vision Inc. | Fundus alignment in optical treatment systems |
| CN116369840B (en) * | 2023-06-05 | 2023-08-01 | 广东麦特维逊医学研究发展有限公司 | Projection lighting system without bright spots and working method thereof |
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Effective date of registration: 20200324 Address after: 401331 no.1-10, 9 / F, office building 4, 2n group, phase 2 project, Zhihui international, Fuli City, Shapingba District, Chongqing Patentee after: CHONGQING BEIAO NEW VISION MEDICAL EQUIPMENT Co.,Ltd. Address before: Guangdong province Dongguan City Road 523808 at the Songshan Lake high tech Industrial Development Zone, No. 4, No. 11 Keyuan pine floor 4 floor Patentee before: GUANGDONG FORTUNE NEWVISION TECHNOLOGY Ltd. |