CN106389004A - Laser adapter with continuously adjustable light spots and fundus laser therapeutic instrument - Google Patents
Laser adapter with continuously adjustable light spots and fundus laser therapeutic instrument Download PDFInfo
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- CN106389004A CN106389004A CN201510460268.8A CN201510460268A CN106389004A CN 106389004 A CN106389004 A CN 106389004A CN 201510460268 A CN201510460268 A CN 201510460268A CN 106389004 A CN106389004 A CN 106389004A
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- hot spot
- laser
- collimating mirror
- lens group
- light spots
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Abstract
The invention is applied to the technical field of medical devices, and provides a laser adapter with continuously adjustable light spots. The laser adapter comprises an input optical fiber, and an imaging lens group, a collimating lens and a focusing lens which are arranged on a laser output optical path of the input optical fiber, wherein the imaging lens group carries out imaging on laser, so that first light spots with energy distribution being flat-top distribution are formed, the object space focal plane of the collimating lens and the first light spots are superposed, the focusing lens focuses parallel light beams output by the collimating lens to a light receiving face, so that second light spots are formed, and due to the linkage of the imaging lens group and the collimating lens, the second light spots are continuously adjustable. According to the laser adapter, through the imaging lens group, laser is imaged to form the first light spots in flat-top distribution, and the energy distribution states of the second light spots and the first light spots are basically the same, therefore, the energy of the light spots is uniform, the edges are clear and sharp, the sizes are real and reliable, and the treatment effects are obviously improved; through the linkage of the imaging lens group and the collimating lens, the continuous change of the size of the second light spots is realized, therefore, the treatment area can be changed according to the practical pathological changes, and finally, the treatment effect and efficiency are promoted.
Description
Technical field
The invention belongs to technical field of medical instruments, particularly to a kind of hot spot continuously adjustable laser adapter
And Fundus laser therapeutic equipment.
Background technology
Fundus laser therapeutic equipment is that laser is irradiated to eyeground, and the energy that fundus tissue absorbs laser heats up, and makes
In-house protein denaturation solidification, reaches the purpose treating various retinopathies.Clinically mainly use it at present
Therapeutic community's serous chorioretinopathy change, view inner membrance ceasma, retinal detachment, diabetes view
The eyes such as film pathology, treating senile maculopathy, retinal vein obstruction, retinal vasculitis, Retinal neoplasms
Bottom pathology.
Laser adapter is the main optical transmission system of Fundus laser therapeutic equipment, generally micro- with slit-lamp
Mirror is used in combination, and its performance directly affects the quality being irradiated to hot spot on eyeground.In prior art, hot spot is even
Continuing variable laser adapter is typically all Gaussian Profile, and center is bright, and edge is dark, can lead to hot spot during treatment
The tissue at center is overheated, and the tissue of light spot edge is not reaching to therapeutic effect, and treatment is uneven.
Content of the invention
It is an object of the invention to provide a kind of continuously adjustable laser adapter of hot spot is it is intended to make to be irradiated to eye
The laser facula energy at bottom is uniform, and edge clear improves therapeutic effect.
The present invention is achieved in that a kind of hot spot continuously adjustable laser adapter, including input optical fibre with
And it is arranged at imaging lens group on the laser output light path of described input optical fibre, collimating mirror and focus lamp；
Described imaging lens group, to described laser imaging, forms the first hot spot that Energy distribution is flat-top distribution, described
The object space focal plane of collimating mirror is overlapped with described first hot spot, described focus lamp by described collimating mirror export parallel
Light beam focuses on sensitive surface and forms the second hot spot, and described imaging lens group and collimating mirror can be along parallel to light paths
Direction move, make described second hot spot continuously adjustabe.
Another object of the present invention is to providing a kind of Fundus laser therapeutic equipment, including LASER Light Source and be used for
By the laser adapter of laser conduction to diseased region, described laser adapter includes input optical fibre and setting
Imaging lens group on the laser output light path of described input optical fibre, collimating mirror and focus lamp；Described sharp
Light forms the first hot spot that Energy distribution is flat-top distribution, the thing of described collimating mirror through described imaging lens group
Square focal plane is overlapped with described first hot spot, and the collimated light beam that described collimating mirror exports is focused on by described focus lamp
Diseased region forms the second hot spot, and described imaging lens group and collimating mirror can move along the direction parallel to light path
Dynamic, make described second hot spot continuously adjustabe.
It is that the laser adapter that the present invention provides passes through imaging lens group by the output laser imaging of input optical fibre
One hot spot, this first hot spot is basically identical with the Energy distribution at input optical fibre light output end, is flat-top and divides
Cloth, then the second hot spot is formed by collimating mirror and focus lamp, its Energy distribution state basic one with the first hot spot
Cause, light spot energy is uniform, edge clear is sharp keen, size is true and reliable, and therapeutic effect is obviously improved；Pass through
The consecutive variations of the second spot size are realized in the linkage of imaging lens group and collimating mirror, are more convenient for according to actual disease
Change situation changes area for treatment, lifting therapeutic effect and efficiency.
Brief description
Fig. 1 is a kind of structural representation of hot spot provided in an embodiment of the present invention continuously adjustable laser adapter
Figure；
Fig. 2 is another kind of structural representation of hot spot provided in an embodiment of the present invention continuously adjustable laser adapter
Figure；
Fig. 3 is the structural representation of Fundus laser therapeutic equipment provided in an embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing and reality
Apply example, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
Only in order to explain the present invention, it is not intended to limit the present invention.
Below in conjunction with specific embodiment, implementing of the present invention is described in detail：
Refer to Fig. 1, the embodiment of the present invention provides a kind of hot spot continuously adjustable laser adapter, and it includes
Input optical fibre 1 and be arranged at imaging lens group 2 on the laser output light path of input optical fibre 1, collimating mirror 3
And focus lamp 4；The laser imaging that imaging lens group 2 exports to input optical fibre 1, forming Energy distribution is
First hot spot S1 of flat-top distribution, the object space focal plane of collimating mirror 3 is overlapped with the first hot spot S1, can be by laser
With collimated light beam output, the collimated light beam that collimating mirror 3 exports is focused on sensitive surface and forms second by focus lamp 4
Hot spot S2, imaging lens group 2 and collimating mirror 3 can move along the direction parallel to light path, make the second hot spot
S2 continuously adjustabe.
Wherein, the Laser beam energy distribution of the light output end of input optical fibre 1 is more uniform, laser output after through
The conglobate first hot spot S1 of imaging lens group 2 shape, the Energy distribution of this first hot spot S1 and input optical fibre
The Energy distribution of 1 light output end is identical, or close, is flat-top distribution.So-called flat-top distribution：
Refer to that in beam cross-section, light distribution is uniformly, its energy distribution curve is square wave.The light of this first hot spot S1
Restraint collimated mirror 3 to export with collimated light beam, this collimated light beam is focused to the second hot spot S2 by focus lamp 4, should
The Energy distribution of the second hot spot S2 is essentially identical or of slight difference with the first hot spot S1, therefore, the second light
Spot S2 also has the light energy distribution feature of the light output end of input optical fibre.Imaging lens group 2 is along before light path
Move the size that can change the first hot spot S1 afterwards, collimating mirror 3 and imaging lens group 2 are simultaneously mobile to keep accurate
The object space focal plane of straight mirror 3 is overlapped with the first hot spot S1, and then ensures collimating mirror 3 output collimated light beam and do not change
, as ratio, the size of the second hot spot S2 is same with the first hot spot S1 for biography between change collimating mirror 3 and focus lamp 4
Shi Bianhua, realizes the continuously adjustabe of the second hot spot S2.
And, for the laser adapter treated for eyeground, the second hot spot acts on diseased region, its axle
Stablize constant to status requirement.The light output end of input optical fibre 1 is usually fixed constant, by imaging thoroughly
The linkage of microscope group 2 and collimating mirror 3 can change the size and location of the first hot spot S1 and the second hot spot S2's
Size, as long as keep focus lamp 4 constant with respect to the position of the light output end of input optical fibre 1 it is possible to ensure
The axial location 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 can also be set between collimating mirror 3 and focus lamp 4, this is swept
Retouch galvanometer 5 to be installed on the output light path of collimating mirror 3, its minute surface becomes certain with the output light path of collimating mirror 3
Angle, and minute surface can be rotated, and then laser is reflected to different directions, then gathered by focus lamp 4
Jiao, realizes scanning.Specifically, scanning galvanometer is with the object focus through focus lamp and perpendicular to collimating mirror
The straight line of optical axis direction rotates for axle, and the collimated light beam of collimating mirror output is irradiated in the hot spot on scanning galvanometer
It is centrally located in the object focus of focus lamp so that the collimated light beam that galvanometer reflects in rotation process passes through and gathers
Burnt mirror forms the second hot spot S2, and this second hot spot is in eyeground area for treatment transverse shifting.
The output of input optical fibre 1 is swashed by laser adapter provided in an embodiment of the present invention by imaging lens group 2
Photoimaging, is equivalent to and for the Energy distribution at input optical fibre 1 light output end to be transferred to the first hot spot S1, then by
Collimating mirror 3 and focus lamp 4 form the second hot spot S2, and it is basic with the Energy distribution state of the first hot spot S1
Unanimously, it is to avoid the Gaussian Profile state of light spot energy, light spot energy is uniform, edge clear is sharp keen, size
True and reliable, therapeutic effect is obviously improved；And realized by the linkage of imaging lens group 2 and collimating mirror 3
The consecutive variations of the second hot spot S2 size, are more convenient for changing area for treatment according to actual lesion situation, lifting is controlled
Therapeutic effect and efficiency；Keep the position of focus lamp 4 light output end of input optical fibre 1 relatively constant, the can be made
The axial location of two hot spot S2 is stablized constant, and then carries out safe and reliable treatment.
The present invention further provides a kind of Fundus laser therapeutic equipment, with reference to Fig. 3, including LASER Light Source 01 and
The hot spot continuously adjustable laser adapter 02 that the present invention provides, the laser of LASER Light Source 01 output is through laser
The input optical fibre 1 of adapter 02 inputs, then forms the first hot spot S1 through imaging lens group 2, by standard
Straight mirror 3 and focus lamp 4 form the second hot spot S2, by the linkage change of imaging lens group 2 and collimating mirror 3
Change the size of the second hot spot S2, and the position by fixed-focus mirror 4 and keep the position of the second hot spot S2
Put and immobilize, to carry out Fundus laser treatment.
This Fundus laser therapeutic equipment adopts above-mentioned laser adapter, treats the light spot energy uniformity of pathology,
Edge clear is sharp keen, and size is true and reliable, effectively improves therapeutic effect and efficiency, and will not increase a large amount of
Cost and operation easier.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any modification, equivalent and improvement made within bright spirit and principle etc., should be included in the present invention
Protection domain within.
Claims (10)
1. a kind of continuously adjustable laser adapter of hot spot is it is characterised in that including input optical fibre and being arranged at imaging lens group on the laser output light path of described input optical fibre, collimating mirror and focus lamp；Described laser forms, through described imaging lens group, the first hot spot that Energy distribution is flat-top distribution, the object space focal plane of described collimating mirror is overlapped with described first hot spot, the collimated light beam that described collimating mirror exports is focused on sensitive surface and forms the second hot spot by described focus lamp, described imaging lens group and collimating mirror can move along the direction parallel to light path, make described second hot spot continuously adjustabe.
2.As claimHot spot described in 1 continuously adjustable laser adapter is it is characterised in that the Energy distribution of described first hot spot is identical with the Energy distribution of the light output end of described input optical fibre.
3.As claimHot spot described in 1 continuously adjustable laser adapter is it is characterised in that the Energy distribution of described second hot spot is identical with the Energy distribution of described first hot spot.
4.As claimHot spot described in 1 continuously adjustable laser adapter, it is characterized in that, it is provided with scanning galvanometer between described collimating mirror and focus lamp, with the object focus through described focus lamp and the straight line of the optical axis direction perpendicular to described collimating mirror is that axle rotates to described scanning galvanometer, and the hot spot that the collimated light beam of described collimating mirror output is irradiated on described scanning galvanometer is centrally located in the object focus of described focus lamp.
5.As claimHot spot described in 1 continuously adjustable laser adapter is it is characterised in that the position of the light output end with respect to described input optical fibre for the described focus lamp immobilizes.
6. a kind of Fundus laser therapeutic equipment, it is characterized in that, including LASER Light Source and for by the laser adapter of laser conduction to diseased region, described laser adapter include input optical fibre and be arranged at described input optical fibre laser output light path on imaging lens group, collimating mirror and focus lamp；Described laser forms, through described imaging lens group, the first hot spot that Energy distribution is flat-top distribution, the object space focal plane of described collimating mirror is overlapped with described first hot spot, the collimated light beam that described collimating mirror exports is focused on diseased region and forms the second hot spot by described focus lamp, described imaging lens group and collimating mirror can move along the direction parallel to light path, make described second hot spot continuously adjustabe.
7.As claimFundus laser therapeutic equipment described in 6 is it is characterised in that the Energy distribution of described first hot spot is identical with the Energy distribution of the light output end of described input optical fibre.
8.As claimFundus laser therapeutic equipment described in 6 is it is characterised in that the Energy distribution of described second hot spot is identical with the Energy distribution of described first hot spot.
9.As claimFundus laser therapeutic equipment described in 6, it is characterized in that, it is provided with scanning galvanometer between described collimating mirror and focus lamp, with the object focus through described focus lamp and the straight line of the optical axis direction perpendicular to described collimating mirror is that axle rotates to described scanning galvanometer, and the hot spot that the collimated light beam of described collimating mirror output is irradiated on described scanning galvanometer is centrally located in the object focus of described focus lamp.
10.As claimFundus laser therapeutic equipment described in 6 is it is characterised in that the position of the light output end with respect to described input optical fibre for the described focus lamp immobilizes.
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| 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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| 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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| CN106389004B CN106389004B (en) | 2018-12-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019033337A1 (en) * | 2017-08-17 | 2019-02-21 | Xinova, LLC | Fundus alignment in optical treatment systems |
| CN116369840A (en) * | 2023-06-05 | 2023-07-04 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Publication date |
|---|---|
| CN106389004B (en) | 2018-12-07 |
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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. |