CN202223210U - Optical coherence tomography (OCT) imaging system - Google Patents
Optical coherence tomography (OCT) imaging system Download PDFInfo
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- CN202223210U CN202223210U CN2011203126925U CN201120312692U CN202223210U CN 202223210 U CN202223210 U CN 202223210U CN 2011203126925 U CN2011203126925 U CN 2011203126925U CN 201120312692 U CN201120312692 U CN 201120312692U CN 202223210 U CN202223210 U CN 202223210U
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- oct
- human eye
- slit lamp
- infrared light
- imaging
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Abstract
The utility model discloses an optical coherence tomography (OCT) imaging system, which comprises an OCT infrared light source reference arm, an acquisition part and a detection arm, wherein the detection arm is sequentially provided with an optical fiber, a collimator, a light path galvanometer scanning system, a lens and a hot mirror from the OCT infrared light source reference arm and the acquisition part to a human eye on a light path; the infrared light emitted by the lens is reflected to the human eye by the hot mirror; a slit lamp system is arranged on the backlight path from the hot mirror to the human eye light path; and a white light source of the slit lamp system is transmitted to the hot mirror and then enters the human eye. An objective is also arranged between the hot mirror and the human eye. According to the OCT imaging system, a slit lamp is combined with OCT, and the OCT system is relatively independent, so that the slit lamp and the OCT system are mutually imaged without influence and are mutually complementary. The OCT imaging and the slit lamp imaging are confocal, so that information of the eye ground surface or the eye anterior segment surface and the depth structure can be simultaneously acquired without excessive regulation; and the OCT imaging system has a more reasonable structure, and is more stable in imaging.
Description
Technical field
This utility model relates to a kind of optical device, relates in particular to a kind of optical imaging apparatus.
Background technology
Multi-functional imaging is the development trend of medical imaging technology.Optical coherent chromatographic imaging (Optical Coherence Tomography in recent ten years; Abbreviation OCT) research makes important progress; It utilizes the ultimate principle of weak coherent light interferometer; Detection of biological is organized back-reflection or the scattered signal of different depth aspect to the incident weak coherent light, can obtain biological tissue's two dimension or three-dimensional high definition microstructural image through scanning, and it is several to tens microns that resolution can reach.Because Optical Coherence Tomography Imaging Technology can realize noncontact, noinvasive, high resolution detection to disease of eye, generally promotes the use of clinically.But Optical Coherence Tomography Imaging Technology imaging scope is less, generally is several millimeters, is difficult to pathological tissues is positioned, so often need other formation method to navigate and locate.
Utilizing slit lamp to carry out the ophthalmic diseases inspection is widely used clinically method, and it can realize the large-scale two-dimensional imaging to ocular tissue, observes and locate diseased region easily.But because slit lamp can only form images to ocular surface, the meticulous deep structure of eyes can't be surveyed.
Employing not only can provide macroscopic tissue image to the ophthalmologist based on the optical coherence tomography system of slit lamp, and high-resolution three-dimensional tomographic map can also be provided, and the combination of the two has the characteristic that has complementary functions, and helps the accurate diagnosis of disease.In the market optical coherent chromatographic imaging appearance and slit lamp microscope belong to autonomous device, inconvenient operation, and the combination diagnosis of two kinds of images is difficulty relatively.
Find through the document retrieval; Similar number of patent application is 01134849.6 patent " with the gage beam of slit lamp optical joint coherent tomographic ophthalmologic examination appearance "; This patent utilization and slit lamp optical joint coherent tomographic ophthalmologic examination appearance; Slit lamp is combined with the OCT technology, make a machine both can carry out conventional ophthalmic diseases inspection, can also check the opacity, depths.But the OCT system independence is not enough, and the lens of use and object lens all are in the slit lamp system, causes the OCT image quality to descend, and range of application also is restricted.
The utility model content
This utility model technical problem to be solved provides more reasonable, the stable multi-functional OCT system of a kind of structure; Wherein the OCT system is relatively independent; Realize the better imaging simultaneously of slit lamp and two kinds of images of OCT, help the early diagnosis of disease, also be convenient to clinical use.
This utility model is that to solve the problems of the technologies described above the technical scheme of employing following:
A kind of OCT imaging system; Comprise OCT infrared light supply reference arm and collecting part and feeler arm; Described feeler arm is disposed with optical fiber, collimator, galvanometer scanning system, lens and heat mirror from OCT infrared light supply reference arm and collecting part to human eye along light path; The reflection of said heat mirror by the infrared light of said lens outgoing to human eye; The light path dorsad on the pure man eye road of said heat mirror is provided with the slit lamp system, and the white light source of said slit lamp system incides human eye after seeing through said heat mirror.
Between said heat mirror and human eye, also be provided with object lens.
Between said heat mirror and human eye, can be movably set with object lens, the optical axis of object lens is switching overlapping peaceful shifting out between the feeler arm main optical path with the feeler arm main optical path under the promotion of driving mechanism.
During the anterior ocular segment imaging; The infrared light that OCT infrared light supply reference arm and collecting part send is through optical fiber and the parallel outgoing of collimator, and through galvanometer scanning system scanning, being reflected into of scioptics, heat mirror is mapped to anterior ocular segment again; The back-scattering light of infrared light joint before eyes returns along original optical path; And form with the light of reference arm and to interfere, collected by the OCT collecting part, thereby obtain the OCT image.The white light source of slit lamp system incides anterior ocular segment after passing heat mirror, eyes is illuminated, and observe ocular anterior segment structure through the telescopic system on the slit lamp.
During fundus imaging; The infrared light that OCT infrared light supply reference arm and collecting part send is through optical fiber and the parallel outgoing of collimator, and through the scanning of light path galvanometer scanning system, the reflection of scioptics, heat mirror and object lens focusing are to the optical fundus again; Infrared light returns along original optical path at the back-scattering light on optical fundus; And form with the light of reference arm and to interfere, collected by the OCT collecting part, thereby obtain the OCT image.After the white light source of slit lamp system sees through heat mirror,, eyes are illuminated, and observe the optical fundus structure through the telescopic system on the slit lamp through object lens.
This utility model combines slit lamp with OCT, and the OCT system is relatively independent, is in as unaffected, complements one another.OCT imaging and the slit lamp confocal point that forms images like this, need not too much be regulated, and can stablize and obtain surface, optical fundus or anterior ocular segment surface and depth structure information, and structure is more reasonable, and it is more stable to form images.
Description of drawings
For letting above-mentioned purpose, the feature and advantage of this utility model can be more obviously understandable, elaborate below in conjunction with the specific embodiment of accompanying drawing to this utility model, wherein:
Fig. 1 is the structural representation that this utility model activity is provided with the OCT imaging system of object lens.
Fig. 2 is the structural representation that this utility model is not provided with the OCT imaging system of object lens.
Fig. 3 is the structural representation that this utility model fixedly installs the OCT imaging system of object lens.
Among the figure:
1, feeler arm 2, OCT reference arm and collecting part 201, infrared light supply
202, fiber coupler 203, reference arm 204, spectrogrph
3, slit lamp system 4, optical fiber 5, collimator
6, galvanometer scanning system 7, lens 8, heat mirror
9, object lens 10, human eye.
The specific embodiment
Fig. 1 shows a kind of OCT imaging system; Comprise OCT infrared light supply reference arm and collecting part 2 and feeler arm 1; Wherein OCT infrared light supply reference arm and collecting part 2 comprise infrared light supply 201, fiber coupler 202, reference arm 203 and spectrogrph 204; The light beam input optical fibre bonder 202 that infrared light supply 201 sends; Output to feeler arm 1 and reference arm 203 then respectively, output to spectrogrph 204, generation OCT image after the direct reflection optical signal that the optical signal that is returned by described feeler arm 1 and reference arm 203 return forms interference through fiber coupler 202.
Described feeler arm 1 is disposed with optical fiber 4, collimator 5, galvanometer scanning system 6, lens 7 and heat mirror 8 from OCT infrared light supply reference arm and collecting part 2 to human eye 10 along light path; Said heat mirror 8 reflections are by infrared light to the human eye 10 of said lens 7 outgoing; The light path dorsad to human eye 10 light paths of said heat mirror 8 is provided with slit lamp system 3, and the white light source of said slit lamp system 3 incides human eye 10 after seeing through said heat mirror 8.Between said heat mirror 8 and human eye 10, be movably set with object lens 9, the optical axis of object lens 9 is switching overlapping peaceful shifting out between feeler arm 1 main optical path with feeler arm 1 main optical path under the promotion of driving mechanism.
In the practical operation, when fundus imaging, object lens 9 are arranged between heat mirror 8 and the human eye 10, and its optical axis overlaps with the main optical path of feeler arm 1.The infrared light that OCT infrared light supply reference arm and collecting part 2 send is through optical fiber 4 and collimator 5 parallel outgoing; Through galvanometer scanning system 6 scannings; The reflection of scioptics 7, heat mirror 8 and object lens 9 focus on the optical fundus again, and infrared light returns along original optical path at the back-scattering light on eyes 10 optical fundus, and interfere with the light formation of reference arm 203; Collected by OCT collecting part (spectrogrph 204), thereby obtain the OCT image.After the white light source of slit lamp system 3 sees through heat mirror,, eyes 10 are illuminated, and observe the optical fundus structure through the telescopic system on the slit lamp through object lens 9.
When anterior ocular segment forms images, make its optical axis translation go out the main optical path (state as shown in Figure 1) of feeler arm 1 by drive mechanism object lens 9.The infrared light that OCT infrared light supply reference arm and collecting part 2 send is through optical fiber 4 and collimator 5 parallel outgoing; Through galvanometer scanning system 6 scannings; The reflect focalization of scioptics 7, heat mirror 8 is to anterior ocular segment again, and the back-scattering light of infrared light joint before eyes returns along original optical path, and interferes with the light formation of reference arm 203; Collected by OCT collecting part (spectrogrph 204), thereby obtain the OCT image.The white light source of slit lamp system 3 incides anterior ocular segment after passing heat mirror 8, eyes 10 is illuminated, and observe ocular anterior segment structure through the telescopic system on the slit lamp.
Certainly owing to the difference of demand, this OCT imaging system also can not be provided with object lens 9 (as shown in Figure 2), perhaps between heat mirror 8 and human eye 10, fixedly installs object lens 9 (as shown in Figure 3) all the time, thereby does anterior ocular segment or fundus imaging more singlely.
Claims (3)
1. OCT imaging system; Comprise OCT infrared light supply reference arm and collecting part and feeler arm; It is characterized in that: described feeler arm is disposed with optical fiber, collimator, galvanometer scanning system, lens and heat mirror from OCT infrared light supply reference arm and collecting part to human eye along light path; The reflection of said heat mirror by the infrared light of said lens outgoing to human eye; The light path dorsad on the pure man eye road of said heat mirror is provided with the slit lamp system, and the white light source of said slit lamp system incides human eye after seeing through said heat mirror.
2. OCT imaging system according to claim 1 is characterized in that: between said heat mirror and human eye, also be provided with object lens.
3. OCT imaging system according to claim 1; It is characterized in that: between said heat mirror and human eye, be movably set with object lens, the optical axis of object lens is switching overlapping peaceful shifting out between the feeler arm main optical path with the feeler arm main optical path under the promotion of driving mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203126925U CN202223210U (en) | 2011-08-25 | 2011-08-25 | Optical coherence tomography (OCT) imaging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203126925U CN202223210U (en) | 2011-08-25 | 2011-08-25 | Optical coherence tomography (OCT) imaging system |
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| CN202223210U true CN202223210U (en) | 2012-05-23 |
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| CN2011203126925U Expired - Lifetime CN202223210U (en) | 2011-08-25 | 2011-08-25 | Optical coherence tomography (OCT) imaging system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102379680A (en) * | 2011-08-25 | 2012-03-21 | 苏州新视野光电技术有限公司 | Optical coherence tomographic imaging system |
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2011
- 2011-08-25 CN CN2011203126925U patent/CN202223210U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102379680A (en) * | 2011-08-25 | 2012-03-21 | 苏州新视野光电技术有限公司 | Optical coherence tomographic imaging system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG FORTUNE NEW VISION OPTOELECTRICAL TECHNO Free format text: FORMER OWNER: SUZHOU XINSHIYE PHOTOELECTRIC TECHNOLOGY CO., LTD. Effective date: 20140723 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 215163 SUZHOU, JIANGSU PROVINCE TO: 523000 DONGGUAN, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140723 Address after: 523000 Guangdong city of Dongguan province at the Songshan Lake high tech Industrial Development Zone No. 11 Keyuan Road No. 4 pine floor 4 floor Patentee after: GUANGDONG FORTUNE NEWVISION TECHNOLOGY LTD. Address before: 215163 micro system garden of science and technology city of Suzhou hi tech Zone, Jiangsu, M1-207 Patentee before: Suzhou Xinshiye Photoelectric Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
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: 523000 Guangdong city of Dongguan province at the Songshan Lake high tech Industrial Development Zone No. 11 Keyuan Road No. 4 pine floor 4 floor Patentee before: GUANGDONG FORTUNE NEWVISION TECHNOLOGY Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210824 Address after: 523808 room 409-410, 4th floor, No.1 Kehui Road, Songshanhu high tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee after: GUANGDONG FORTUNE NEWVISION TECHNOLOGY Ltd. Address before: 401331 Chongqing Shapingba District Fuli City Zhihui International Phase 2 Project 2N Cluster 4 # Office Building 9 1st-10th Patentee before: CHONGQING BEIAO NEW VISION MEDICAL EQUIPMENT Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |