CN106691380A - OCT probe used for optical path automatic calibration - Google Patents
OCT probe used for optical path automatic calibration Download PDFInfo
- Publication number
- CN106691380A CN106691380A CN201611203292.4A CN201611203292A CN106691380A CN 106691380 A CN106691380 A CN 106691380A CN 201611203292 A CN201611203292 A CN 201611203292A CN 106691380 A CN106691380 A CN 106691380A
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- lens
- oct probe
- grin
- optical path
- light path
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
- A61B5/0066—Optical coherence imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0233—Special features of optical sensors or probes classified in A61B5/00
- A61B2562/0238—Optical sensor arrangements for performing transmission measurements on body tissue
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses an OCT probe used for optical path automatic calibration. The OCT probe used for optical path automatic calibration comprises a grin-lens, one end of the grin-lens is provided with a refraction lens, the other end of the grin-lens is provided with a single-mode optical fiber, the side, far away from the refraction lens, of the refraction lens is provided with a sealing cap, the outside of the single-mode optical fiber is provided with a torque cable, the outsides of the grin-lens and the refraction lens are provided with high scattering rate heat shrink tubes, and the outsides of the high scattering rate heat shrink tubes are provided with protection sleeves. The high scattering rate heat shrink tubes are made of a heat shrinkable material PET, a small amount of optical scattering particles are doped in the PET material, the back scattering rate can be increased, thus the high scattering rate heat shrink tubes form a largest detectable peak of an image strength in an image signal, and the positions of a reference arm and a sample arm zero optical path difference can be easily identified. According to the OCT probe used for optical path automatic calibration, the mechanical strength of the OCT probe is improved, and the possibility that the OCT probe is used for a complex, narrow and curved diseased region is increased.
Description
Technical field
The invention belongs to OCT probe technical field, and in particular to a kind of OCT probe calibrated automatically for light path.
Background technology
Optical coherence tomography（Optical Coherence Tomography, abbreviation OCT）Technology is a kind of new
Biomedical optical imaging mode, the technology high resolution（5-10 μm of axial resolution, 20-40 μm of lateral resolution）, into
As speed is fast, signal to noise ratio is high, therefore become a focus in medical imaging field rapidly.Endoscopic optical coherent fault imaging skill
Art needs equipment and conduit to coordinate in order, can just carry out corresponding imaging operation, obtains correct, clearly image.In order to obtain
Interference signal, it is ensured that the sample arm and reference arm light path of optical interferometric devices are roughly equal.Due to the catheter length of sample arm
Can be slightly different, therefore, realize that light path regulatory function is necessary in the reference arm of optical interferometric devices.
Light path is adjusted, and generally by manual control host computer, is progressively sent and is ordered and visually observe screen picture, when reaching
Positioned to host computer is operated during correct position.This method has several defects：Visually observe and there are subjective differences, by
Result may be caused to be inaccurate；Often changing a conduit will waste time and energy to reference arm manual adjustment once；Use preceding need
Could be proper use of after wanting professional to give operating personnel training, increase the Operating Complexity of equipment, clinical practice is suitable
Inconvenience.
The probe processing mode for using at present in addition mainly has following two types：One be by gluing mode, due to
Single-mode fiber is possible to different from the external diameter of GRIN Lens and turning lens, so the mode of gluing is not ensured that preferably
Mechanical performance, probe is possible to fracture or damages during by diseased region；The mechanical performance of probe also has relation with dispensing amount, but
It is that dispensing amount can not be too many, can otherwise influences the optical property of lens.Another kind probe be by single-mode fiber, self-focusing optical fiber and
Coreless fiber is cut and is made by fused fiber splice and length, and this processing mode is very fragile at fusion point, mechanical strength
It is not high.So current OCT probe generally existing mechanical strength problem not high, need careful in use, such as run into complexity
Lesion, can only abandon imaging.
But the not only complex structure of OCT probe in the market, and unitary function, need professional to intervene and adjust manually
Whole, the use difficulty of system is high, reduces system accuracies.
The content of the invention
It is an object of the invention to provide a kind of OCT probe calibrated automatically for light path, to solve above-mentioned background technology
The professional's intervention that needs of middle proposition is manually adjusted, and the use difficulty of system is high, reduces the problem of system accuracies.
To achieve the above object, the present invention provides following technical scheme：A kind of OCT probe calibrated automatically for light path,
Including GRIN Lens, one end of the GRIN Lens is provided with turning lens, and the other end is provided with single-mode fiber, described turn
Folding lens are provided with seal cap away from the side of GRIN Lens, and the outside of the single-mode fiber is provided with moment of torsion cable, described
GRIN Lens is provided with scattered power heat-shrink tube high with the outside of turning lens, and the outside of the scattered power heat-shrink tube high is provided with
Protection sleeve pipe.
Preferably, the single-mode fiber is fixedly connected with GRIN Lens by adhesive.
Preferably, the GRIN Lens is fixedly connected with turning lens by adhesive.
Preferably, the single-mode fiber, GRIN Lens are fixedly connected with turning lens by scattered power heat-shrink tube high.
Preferably, the turning lens are used for beam direction of transferring, and can cut into spy by coreless fiber, glass lens etc.
Determine angle to be made, it is also possible to realized by plating reflective film in lens surface.
The present invention compared with prior art, has the advantages that：Scattered power heat-shrink tube high during this is practical is by warm
Compression material PET is made, and PET has good biocompatibility, is widely used in medical treatment device, is adulterated in PET material few
The optical scatter of amount, can improve backscattering rate so that scattered power heat-shrink tube high forms an image in picture signal
The maximum detectable peak of intensity, with reference to specific algorithm, can easily identify the position of reference arm and sample arm zero optical path difference,
Then control system is fed back to, control system controlled motor again, the light path for adjusting reference arm is matched with sample arm, so that a key reality
Existing light path positioning, eliminates the shortcoming of artificial calibration, and the present invention improves the mechanical strength of OCT probe, increased it and be applied to
Complicated, narrow, bending diseased region possibility.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
In figure：1- single-mode fibers, 2- GRIN Lens, 3- turning lens, 4- scattered power heat-shrink tube high, 5- moments of torsion cable, 6- are close
Sealing cap, 7- protection sleeve pipes.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is referred to, the present invention provides a kind of technical scheme：A kind of OCT probe calibrated automatically for light path, including from
Condenser lens 2, one end of GRIN Lens 2 is provided with turning lens 3, and the other end is provided with single-mode fiber 1, and turning lens 3 are remote
The side of GRIN Lens 2 is provided with seal cap 6, the outside of single-mode fiber 1 is provided with moment of torsion cable 5, GRIN Lens 2 with
The outside of turning lens 3 is provided with scattered power heat-shrink tube 4 high, and the outside of scattered power heat-shrink tube 4 high is provided with protection sleeve pipe 7.
In the present embodiment, it is preferred that single-mode fiber 1 is fixedly connected with GRIN Lens 2 by adhesive, adhesive is light
Learn glue glued, single-mode fiber 1 can also be linked together with GRIN Lens 2 by the technology of welding.
In the present embodiment, it is preferred that GRIN Lens 2 is fixedly connected with turning lens 3 by adhesive, adhesive is
Optical glue is glued, and GRIN Lens 2 can also be linked together with turning lens 3 by the technology of welding.
In the present embodiment, it is preferred that single-mode fiber 1, GRIN Lens 2 and turning lens 3 are by scattered power pyrocondensation high
Pipe 4 is fixedly connected, and scattered power heat-shrink tube 4 high uses transparent material contracting with heat, such as polyester（PET）, the specially treated is main
Refer to the method for improving the heat-shrink tube backscattering rate, including but not limited to plate a floor height scattered power film, mixed in heat-shrink tube
The particle of miscellaneous microsize.
In the present embodiment, it is preferred that turning lens are used for beam direction of transferring, can be by coreless fiber, glass lens etc.
Cut into special angle to be made, it is also possible to realized by plating reflective film in lens surface.
Scattered power heat-shrink tube 4 high in the present invention has the specific function that heat is shunk, and more than 98 DEG C of heating is i.e. collapsible,
It is easy to use.For electrolytic capacitor, inductance, product resistance to elevated temperatures is good, without secondary contraction, can be on behalf of printing.For various
The monomer of rechargeable battery, assembly packaging, and on behalf of design, print pattern, and can be cut for visitor.For various curtain rods, shower curtain
The outer cladding of the tubular articles such as bar, peg, mop rod, broomstick, tool bar, expansion link, garden instrument, strut.And can be used for
Bus bar copper row, joint, the mark of wire harness, insulation outer cladding in low-pressure chamber.Efficiency high, equipment investment are few, integrated cost is small.With
It is the packaging material of a new generation in lamp decoration, the cladding of LED pins, and guitar, the parcel of packaging bottleneck.It is either civilian, automobile-used
Or it is military, all it is upper choosing.
Operation principle of the invention and use flow：When being used, staff is checked the present invention first,
Defect is checked for, if there is cannot just carry out using if defect, now needs to notify that maintenance personal is tieed up
Repairing, if there is no can be carried out using if problem, single-mode fiber 1, GRIN Lens 2 and turning lens 3 being used into optics
Glue is bonded together, and single-mode fiber 1 is located in hollow moment of torsion cable 5, and the moment of torsion that moment of torsion cable 5 produces OCT systems is passed
Probe is delivered to, allows probe rotary motion and translational motion in sleeve pipe 7 is protected, during processing, first by single-mode fiber 1, autohemagglutination
Focus lens 2 and turning lens 3 are bonding, then take one small section high scattered power heat-shrink tube 4, carefully pass through turning lens from one end
3rd, GRIN Lens 2 and single-mode fiber 1, noting this one end of scattered power heat-shrink tube 4 high will be to 3cm through after moment of torsion cable 52
Only, can so strengthen the intensity between the port of moment of torsion cable 5 and single-mode fiber 1, then take an external diameter and be slightly less than high dissipating
The metal core axle of the internal diameter of rate heat-shrink tube 4 is penetrated, metal core axle is penetrated from the other end of heat-shrink tube 4, until metal core axle just connects
The tip of turning lens 3 is touched, heat-shrink tube 4 is welded at leisure toward two ends from middle under hot-air welding machine, it is ensured that the jail of heat-shrink tube 4
Moment of torsion cable 5 and lens surface are attached to firmly, metal core axle is extracted out, and blade is used at away from the tip of turning lens 3 about 2 to 3cm
Unnecessary heat-shrink tube is cut away, then a seal cap 6 is formed, by pyrocondensation in blade incision with minimal amount of optical cement water spot
Pipe 4 is closed, and protection sleeve pipe 7 is finally carefully penetrated again, that is, process a kind of OCT probe calibrated automatically for light path.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (5)
1. a kind of OCT probe calibrated automatically for light path, including GRIN Lens（2）, it is characterised in that：The self-focusing is saturating
Mirror（2）One end be provided with turning lens（3）, the other end is provided with single-mode fiber（1）, the turning lens（3）Away from autohemagglutination
Focus lens（2）Side be provided with seal cap（6）, the single-mode fiber（1）Outside be provided with moment of torsion cable（5）, it is described from
Condenser lens（2）With turning lens（3）Outside be provided with scattered power heat-shrink tube high（4）, the scattered power heat-shrink tube high（4）'s
Outside is provided with protection sleeve pipe（7）.
2. a kind of OCT probe calibrated automatically for light path according to claim 1, it is characterised in that：The single-mode optics
It is fine（1）With GRIN Lens（2）It is fixedly connected by adhesive.
3. a kind of OCT probe calibrated automatically for light path according to claim 1, it is characterised in that：The self-focusing
Lens（2）With turning lens（3）It is fixedly connected by adhesive.
4. a kind of OCT probe calibrated automatically for light path according to claim 1, it is characterised in that：The single-mode optics
It is fine（1）, GRIN Lens（2）And turning lens（3）By scattered power heat-shrink tube high（4）It is fixedly connected.
5. a kind of OCT probe calibrated automatically for light path according to claim 1, it is characterised in that：The turnover is saturating
Mirror（3）For beam direction of transferring, special angle can be cut into by coreless fiber, glass lens etc. and be made, it is also possible to passed through
Realized in lens surface plating reflective film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203292.4A CN106691380A (en) | 2016-12-23 | 2016-12-23 | OCT probe used for optical path automatic calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203292.4A CN106691380A (en) | 2016-12-23 | 2016-12-23 | OCT probe used for optical path automatic calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106691380A true CN106691380A (en) | 2017-05-24 |
Family
ID=58903152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611203292.4A Pending CN106691380A (en) | 2016-12-23 | 2016-12-23 | OCT probe used for optical path automatic calibration |
Country Status (1)
| Country | Link |
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| CN (1) | CN106691380A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014354A (en) * | 2020-09-09 | 2020-12-01 | 佛山光微科技有限公司 | OCT reference arm optical path determination and adjustment method and device, storage medium and terminal |
| CN113237850A (en) * | 2021-04-29 | 2021-08-10 | 广州永士达医疗科技有限责任公司 | Optical fiber collimator for OCT (optical coherence tomography), manufacturing method and OCT equipment |
| CN113909071A (en) * | 2021-10-08 | 2022-01-11 | 南京沃福曼医疗科技有限公司 | Packaging method of OCT imaging probe |
| CN117146700A (en) * | 2023-10-30 | 2023-12-01 | 天津恒宇医疗科技有限公司 | OCT equipment optical path calibration method and device and OCT equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014354A (en) * | 2020-09-09 | 2020-12-01 | 佛山光微科技有限公司 | OCT reference arm optical path determination and adjustment method and device, storage medium and terminal |
| CN113237850A (en) * | 2021-04-29 | 2021-08-10 | 广州永士达医疗科技有限责任公司 | Optical fiber collimator for OCT (optical coherence tomography), manufacturing method and OCT equipment |
| CN113909071A (en) * | 2021-10-08 | 2022-01-11 | 南京沃福曼医疗科技有限公司 | Packaging method of OCT imaging probe |
| CN117146700A (en) * | 2023-10-30 | 2023-12-01 | 天津恒宇医疗科技有限公司 | OCT equipment optical path calibration method and device and OCT equipment |
| CN117146700B (en) * | 2023-10-30 | 2024-01-30 | 天津恒宇医疗科技有限公司 | OCT equipment optical path calibration method and device and OCT equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |