CN202699100U - Hand-held optical coherence tomography (OCT) probe and OCT measurement system - Google Patents
Hand-held optical coherence tomography (OCT) probe and OCT measurement system Download PDFInfo
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- CN202699100U CN202699100U CN 201220352431 CN201220352431U CN202699100U CN 202699100 U CN202699100 U CN 202699100U CN 201220352431 CN201220352431 CN 201220352431 CN 201220352431 U CN201220352431 U CN 201220352431U CN 202699100 U CN202699100 U CN 202699100U
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Abstract
The utility model discloses a hand-held optical coherence tomography (OCT) probe. The hand-held OCT probe comprises an eye lens, a lighting device, a refraction adjusting lens, an optical splitter, flat glass, an X-direction scanning device, a Y-direction scanning device, a focus adjusting lens, an optical fiber connector and a probe control device, wherein a first aiming marking is arranged on the surface of the optical splitter and a second aiming marking is arranged on the surface of the flat glass. The hand-held OCT probe and an OCT measurement system are adopted, a principle of three points one line is utilized, an eyeball to be tested is aimed by the first aiming marking and the second aiming marking, and an OCT image of the eyeball to be tested is previewed by a display screen which is arranged on a shell of the hand-held OCT probe, so that a sample to be tested is located rapidly, and portable operation is carried out.
Description
Technical field
This utility model relates to the optical detection field, relates in particular to a kind of ophthalmology OCT measuring system.
Background technology
Ophthalmology OCT(Optical Coherence Tomography, means of optical coherence tomography) one of most important means of diagnosis ophthalmic diseases have been become at present, existing ophthalmology OCT equipment volume is large, need to operate in special diagnosis room, is not easy to carry.Need to make probe accurately aim at position to be detected during ophthalmologic examination, to obtain the OCT image at position to be detected, in the prior art, usually adopt and observe the OCT image that shows among the PC, if the position of deviation adjustment detected person's eyeball occurring comes to reach the purpose of correct demonstration, but the not high sense cycle that causes of this regulative mode more complicated, efficient is long.
The utility model content
This utility model embodiment technical problem to be solved is, a kind of hand-held ophthalmology OCT measuring system is provided.Can realize the fast detecting location by external display screen preview OCT image and built-in sighting device.
In order to solve the problems of the technologies described above, this utility model embodiment provides a kind of hand-held OCT probe, comprising:
Connect order object lens, illuminator, accent and bend plate glass, directions X scanning means, Y-direction scanning means, focusing lens, the joints of optical fibre and the probe control device that beam splitter, surface that mirror, surface be provided with the first aiming sign are provided with the second aiming sign;
Wherein, described illuminator is used for sending illumination light and shines a testing sample surface and make described testing sample produce reflected light, described connecing is passed to the eyes that described beam splitter and described plate glass are injected the observer after the thing eyepiece is used for described reflected light amplified, described observer aims at testing sample by described the first aiming sign and described the second aiming sign;
The described joints of optical fibre receive the measuring beam that the OCT System cabine sends, described measuring beam by described focusing lens focus process after through described directions X scanning means and the reflection of described Y-direction scanning means, by described spectrophotometric reflection, be incident to described sample by described accent mirror in the wrong and the described thing eyepiece that connects, described directions X scanning means and described Y-direction scanning means are controlled respectively described light beam described testing sample are carried out horizontal direction scanning and vertical scan direction, described probe control device for detection of with process described reference light arm folded light beam and sample folded light beam and interfere the OCT interference signal that forms, and described OCT interference signal is sent to described OCT System cabine.
Wherein also comprise display screen, described display screen is arranged on the housing of described OCT probe, links to each other with described probe signal control device, is used for showing the real-time OCT image of testing sample.
Wherein, also comprise flexible volume holder, described volume holder is located on the housing of described OCT probe, described volume holder is used for fixedly measured's forehead, so that described measured and described housing are in relative static conditions, and make testing sample reflected signal and reference signal light path coupling by moving forward and backward of described volume holder.
Wherein, comprise that also described flexible volume holder is slided and the first button of locking be used to controlling, be used for regulating the second button and the 3rd button of described measuring beam polarization state, be used for gathering the 4th button of the real-time OCT image of testing sample.
Wherein, described illuminator comprises white light LEDs.
Wherein, described beam splitter comprises dichroic mirror.
Wherein, be provided with handle below the housing of described OCT probe, shown in handle be fixedly connected with described housing.。
Correspondingly, this utility model embodiment also provides a kind of OCT measuring system, comprise above-mentioned hand-held OCT probe, OCT System cabine and PC, described hand-held OCT probe is connected with described OCT System cabine, described OCT System cabine is connected with described PC, and wherein said OCT System cabine comprises OCT main system, OCT main system signal control device and Polarization Controller;
Wherein, described OCT main system is sent measuring beam and is regulated polarization state through described Polarization Control, light beam is delivered to described OCT probe through optical fiber transmission after regulating, described OCT main system signal control device is processed for the OCT interference signal that receives described hand-held OCT probe feedback, and is sent to the OCT image that PC is used for rebuilding testing sample.
Implement this utility model embodiment, have following beneficial effect:
Sonde configuration is compact, volume is urinated in carrying, and utilizes the principle of sight alignment, by the first aiming sign and the second aiming sign aiming eyeball to be measured, and simultaneously by on the portable housing the OCT image of display screen preview eyeball to be measured, can realize that testing sample locates fast.
Description of drawings
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the side view of a kind of hand-held OCT probe embodiments of the present utility model;
Fig. 2 is the rearview of a kind of hand-held OCT probe embodiments of the present utility model;
Fig. 3 is the example structure schematic diagram of a kind of OCT measuring system of the present utility model.
The specific embodiment
Below in conjunction with the accompanying drawing among this utility model embodiment, the technical scheme among this utility model embodiment is clearly and completely described, obviously, described embodiment only is this utility model part embodiment, rather than whole embodiment.Based on the embodiment in this utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of this utility model protection.
See also Fig. 1 and Fig. 2, be the structural representation of the embodiment of a kind of hand-held OCT probe of the present utility model, this probe 104 comprises:
The illumination light that illuminator 401 sends is radiated at testing sample E surface and produces reflected light, and illuminator 401 is preferably white light LEDs, because the operator directly observes sample (human eye) by observation window, adopts the easier operator of white-light illuminating to observe sample.(notes :) white light LEDs is different from OCT flashlight wave band, can well avoid the OCT signal is produced interference, and white light LEDs has advantages of that luminous intensity is large simultaneously.Described reflected light is injected observer's eyes through being passed to beam splitter 204 and plate glass 301 after connecing thing eyepiece 206 and transferring mirror 205 in the wrong to amplify, the observer utilizes the principle aiming testing sample E of sight alignment by being embedded into the first aiming sign 303 aiming testing sample E on the aiming of second on the plate glass 301 in housing sign 302 and the beam splitter 204.
The process that produces the OCT signal is as follows:
The joints of optical fibre 103 receive the measuring beam that the OCT System cabine sends, described measuring beam is focused by focusing lens 201 and is reflected through 2-D vibration mirror (being directions X scanning means 202 and Y-direction scanning means 203) after processing, beam splitter 204 reflections, beam splitter 204 is preferably dichroic mirror, and the total reflection of infrared OCT wave band, visible transmission are incident to described sample through the light of beam splitter 204 reflections by transferring to bend mirror 205 and connect thing eyepiece 206.Transfer mirror 205 in the wrong to be used for regulating described measuring beam according to the different diopter of sample and make it just focus on testing sample E, namely described measuring beam is radiated on the testing sample E along optical axis L 1, L2 and L3.Described directions X scanning means 203 is used for controlling described measuring beam described testing sample E is carried out horizontal direction scanning, Y-direction scanning means 202 is used for controlling described measuring beam described testing sample E is carried out vertical scan direction, the scanning process prior art discloses, herein Ao Shu no longer.
The folded light beam that the reference light arm produces and sample folded light beam are interfered formation OCT interference signal, described OCT main system 101 is used for described OCT interference signal is detected, is sent to OCT main system signal control device 106 after the processing such as amplification, analog digital conversion, by OCT main system signal control device 106 signal is passed to PC105 again and processs and displays.
Preferably, hand-held OCT probe 104 also comprises display screen 501, and display screen 501 is arranged on the housing of hand-held OCT probe 104, is used for showing the real-time OCT image of testing sample E.Display screen 501 is connected with probe signal control device 502, and the OCT image that probe signal control device 502 sends OCT system signal control device 106 is presented on the display screen 501, and the handled easily person carries out preview.
Further preferred, hand-held OCT probe 104 also comprises scalable volume holder 601, is used for the OCT signal of conjunction measuring human eye.The profile of the profile of volume holder 601 and measured S forehead is complementary, can be well fixedly the forehead of measured S and keep measured S and hand-held OCT probe 104 between relatively static, prevented probe rock and measured's movement causes image blurring.Make eyeball reflected signal to be measured and reference signal light path coupling by moving forward and backward of volume holder 601, obtain clearly OCT interference signal.The hull outside of hand-held OCT probe 104 also is provided with the first button 602 that quota holder 601 is slided and locked, and is used for regulating the second button 604 and the 3rd button 605 of described measuring beam polarization state, is used for gathering the 4th button 606 of real-time OCT image.When pressing the first button 602, volume holder 601 is slided before and after can be freely, during release button 109, volume holder 601 by locked and can't before and after slide the position of very easily quota holder 108.
Be provided with handle 603 below the housing of hand-held OCT probe 104, handle 603 is fixedly connected with described housing, and handled easily the person hold.
See also Fig. 3, be a kind of OCT measuring system of this utility model example structure schematic diagram, comprising:
Hand-held OCT probe 104, OCT System cabine 107 and PC105, hand-held OCT probe 104 is connected with OCT System cabine 107, OCT System cabine 107 is connected with PC105, and wherein OCT System cabine 107 comprises OCT main system 101, OCT main system signal control device 106 and Polarization Controller 102.
Work process is as follows:
OCT main system 101 is sent measuring beam and is regulated polarization state through Polarization Controller 102, light beam is delivered to hand-held OCT probe 104 through optical fiber transmission after regulating, OCT main system signal control device 106 is processed for the OCT interference signal that receives described hand-held OCT probe feedback, and is sent to the OCT image that PC105 is used for rebuilding testing sample.
Implement this practical new embodiment, the compact conformation of probe, volume are urinated in carrying; The center band aims at dichroic mirror and the plate glass of sign, utilizes the principle of sight alignment, and the aiming of more convenient testing sample has improved the efficient of measuring; Probe carries for the display screen that shows the real-time OCT image of testing sample, and the convenient operation person can regulate the distance of probe and testing sample when observing testing sample; The scalable volume holder that probe top arranges can mate testing sample reflected signal and reference signal light path by moving forward and backward, and fixedly measured's forehead rocking of preventing from popping one's head in causes image blurring simultaneously.
Above disclosed only is a kind of preferred embodiment of this utility model, certainly can not limit with this interest field of this utility model, one of ordinary skill in the art will appreciate that all or part of flow process that realizes above-described embodiment, and according to the equivalent variations that this utility model claim is done, still belong to the scope that utility model contains.
Claims (8)
1. a hand-held OCT probe is characterized in that, comprising:
Connect order object lens, illuminator, accent and bend plate glass, directions X scanning means, Y-direction scanning means, focusing lens, the joints of optical fibre and the probe control device that beam splitter, surface that mirror, surface be provided with the first aiming sign are provided with the second aiming sign;
Wherein, described illuminator is used for sending illumination light and shines a testing sample surface and make described testing sample produce reflected light, described connecing is passed to the eyes that described beam splitter and described plate glass are injected the observer after the thing eyepiece is used for described reflected light amplified, described observer aims at testing sample by described the first aiming sign and described the second aiming sign;
The described joints of optical fibre receive the measuring beam that the OCT System cabine sends, described measuring beam by described focusing lens focus process after through described directions X scanning means and the reflection of described Y-direction scanning means, by described spectrophotometric reflection, be incident to described sample by described accent mirror in the wrong and the described thing eyepiece that connects, described directions X scanning means and described Y-direction scanning means are controlled respectively described light beam described testing sample are carried out horizontal direction scanning and vertical scan direction, described probe control device for detection of with process described reference light arm folded light beam and sample folded light beam and interfere the OCT interference signal that forms, and described OCT interference signal is sent to described OCT System cabine.
2. OCT probe as claimed in claim 1 is characterized in that, also comprises display screen, and described display screen is arranged on the housing of described OCT probe, links to each other with described probe signal control device, is used for showing the real-time OCT image of testing sample.
3. OCT as claimed in claim 2 pops one's head in, it is characterized in that, also comprise flexible volume holder, described volume holder is located on the housing of described OCT probe, described volume holder is used for fixedly measured's forehead, so that described measured and described housing are in relative static conditions, and make testing sample reflected signal and reference signal light path coupling by moving forward and backward of described volume holder.
4. described OCT as claimed in claim 3 pops one's head in, it is characterized in that, comprise that also described flexible volume holder is slided and the first button of locking be used to controlling, be used for regulating the second button and the 3rd button of described measuring beam polarization state, be used for gathering the 4th button of real-time testing sample OCT image.
5. such as each described probe of claim 1-4, it is characterized in that, described illuminator comprises white light LEDs.
6. OCT as claimed in claim 5 probe is characterized in that, is provided with handle below the housing of described OCT probe, shown in handle be fixedly connected with described housing.
7. probe as claimed in claim 6 is characterized in that, described beam splitter comprises dichroic mirror.
8. OCT measuring system, it is characterized in that, comprise such as each described hand-held OCT probe of claim 1-7, OCT System cabine and PC, described hand-held OCT probe is connected with described OCT System cabine, described OCT System cabine is connected with described PC, and wherein said OCT System cabine comprises OCT main system, OCT main system signal control device and Polarization Controller;
Wherein, described OCT main system is sent measuring beam and is regulated polarization state through described Polarization Control, light beam is delivered to described OCT probe through optical fiber transmission after regulating, described OCT main system signal control device is processed for the OCT interference signal that receives described hand-held OCT probe feedback, and is sent to the OCT image that PC is used for rebuilding testing sample.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220352431 CN202699100U (en) | 2012-07-20 | 2012-07-20 | Hand-held optical coherence tomography (OCT) probe and OCT measurement system |
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| CN 201220352431 CN202699100U (en) | 2012-07-20 | 2012-07-20 | Hand-held optical coherence tomography (OCT) probe and OCT measurement system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103674840A (en) * | 2013-11-18 | 2014-03-26 | 深圳市斯尔顿科技有限公司 | Method and system for calibrating scanning device through debugging cylinder device and debugging cylinder device |
| CN103860136A (en) * | 2014-03-26 | 2014-06-18 | 深圳市斯尔顿科技有限公司 | Method and system for partially amplifying image in spot scanning laser eye ground |
| CN106308744A (en) * | 2015-06-15 | 2017-01-11 | 南京理工大学 | Handheld human body any surface position skin frequency sweeping optical coherence tomography imaging apparatus |
| CN109124588A (en) * | 2018-09-25 | 2019-01-04 | 南开大学 | A kind of OCT probe for mouth disease inspection |
| CN109620127A (en) * | 2018-11-28 | 2019-04-16 | 贵州大学 | A kind of scanning head mechanism |
| CN109893087A (en) * | 2019-04-11 | 2019-06-18 | 北京悦琦创通科技有限公司 | A kind of hand-held fundus camera |
| CN110300541A (en) * | 2017-01-17 | 2019-10-01 | 杜克大学 | Optical coherence tomography device and system |
| CN110755029A (en) * | 2019-10-30 | 2020-02-07 | 中国科学院宁波工业技术研究院慈溪生物医学工程研究所 | Anti-shake hand-held type OCT probe |
| CN111012302A (en) * | 2019-12-13 | 2020-04-17 | 上海应用技术大学 | Handheld optical coherence tomography system for general type eye ground function of adults and infants |
| WO2020198562A1 (en) * | 2019-03-27 | 2020-10-01 | University Of Washington | Handheld optical imaging devices and methods |
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2012
- 2012-07-20 CN CN 201220352431 patent/CN202699100U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674840A (en) * | 2013-11-18 | 2014-03-26 | 深圳市斯尔顿科技有限公司 | Method and system for calibrating scanning device through debugging cylinder device and debugging cylinder device |
| CN103860136A (en) * | 2014-03-26 | 2014-06-18 | 深圳市斯尔顿科技有限公司 | Method and system for partially amplifying image in spot scanning laser eye ground |
| CN103860136B (en) * | 2014-03-26 | 2016-03-23 | 深圳市斯尔顿科技有限公司 | To the method and system that image local amplifies in point scanning laser optical fundus |
| CN106308744A (en) * | 2015-06-15 | 2017-01-11 | 南京理工大学 | Handheld human body any surface position skin frequency sweeping optical coherence tomography imaging apparatus |
| CN110300541A (en) * | 2017-01-17 | 2019-10-01 | 杜克大学 | Optical coherence tomography device and system |
| US11828593B2 (en) | 2017-01-17 | 2023-11-28 | Duke University | Optical coherence tomography device and system |
| US11460292B2 (en) | 2017-01-17 | 2022-10-04 | Duke University | Optical coherence tomography device and system |
| CN109124588A (en) * | 2018-09-25 | 2019-01-04 | 南开大学 | A kind of OCT probe for mouth disease inspection |
| CN109620127A (en) * | 2018-11-28 | 2019-04-16 | 贵州大学 | A kind of scanning head mechanism |
| WO2020198562A1 (en) * | 2019-03-27 | 2020-10-01 | University Of Washington | Handheld optical imaging devices and methods |
| CN109893087A (en) * | 2019-04-11 | 2019-06-18 | 北京悦琦创通科技有限公司 | A kind of hand-held fundus camera |
| CN110755029A (en) * | 2019-10-30 | 2020-02-07 | 中国科学院宁波工业技术研究院慈溪生物医学工程研究所 | Anti-shake hand-held type OCT probe |
| CN111012302A (en) * | 2019-12-13 | 2020-04-17 | 上海应用技术大学 | Handheld optical coherence tomography system for general type eye ground function of adults and infants |
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