CN211355395U - Bulbar conjunctiva microcirculation imaging device - Google Patents
Bulbar conjunctiva microcirculation imaging device Download PDFInfo
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- CN211355395U CN211355395U CN201922131995.6U CN201922131995U CN211355395U CN 211355395 U CN211355395 U CN 211355395U CN 201922131995 U CN201922131995 U CN 201922131995U CN 211355395 U CN211355395 U CN 211355395U
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Abstract
The utility model discloses an eyeball conjunctiva microcirculation imaging device, including device body and adjustable reflect meter, this internal light source irradiation device, fixed focus lens, liquid lens and the image sensor of installing in proper order of device, the liquid lens is connected with liquid lens drive controller, and liquid lens drive controller is used for adjusting the radius of curvature of liquid lens. The adjustable reflection device is arranged at the end of the device body in an up-and-down symmetrical mode, the adjustable reflection device comprises a reflector and a reflector support, the reflector is hinged to the reflector support, an included angle between the reflector and the reflector support is adjustable, and the reflector support is fixedly installed on the device body and axially provided with an included angle with the device body. The technical scheme has the characteristics of good imaging effect, simple structure and convenience in focusing, and the adjustable reflecting device is adopted, so that light rays emitted by the annular LED illuminating device can be more uniformly and more sufficiently irradiated to the surface of an eyeball by adjusting the included angle between the reflecting mirror and the reflecting mirror support.
Description
Technical Field
The utility model belongs to the technical field of the image detection and specifically relates to an eyeball conjunctiva microcirculation imaging device is related to.
Background
Microcirculation refers to the blood circulation in the capillary between the micro-artery and the micro-vein in the human vascular network, which completes the material exchange between blood and tissue, provides oxygen, nutrients, etc. for cell tissue, and is the most basic structural unit in the blood circulation system. Whether the physiological functions of various tissues and organs of the human body are normal can be judged by observing the blood flow rate, the blood vessel shape and the like in the microcirculation.
The bulbar conjunctiva is one of the most commonly used major microcirculation sites that represent the systemic microcirculation, and the bulbar conjunctiva capillaries are the final vascular bed covered in the translucent upper part of the sclera, and the blood vessels are superficial and easy to observe, so that various diseases of the whole body, such as Alzheimer's disease, cardiopulmonary resuscitation and the like, can be clinically evaluated by observing the bulbar conjunctiva microcirculation condition. The bulbar conjunctiva microcirculation imaging device is used for collecting microcirculation images of the bulbar conjunctiva and judging the state of an illness of a patient by observing physiological information such as blood flow velocity, blood vessel morphology and the like of the bulbar conjunctiva.
In the prior art, a functional slit lamp biological microscope device is generally adopted for bulbar conjunctiva microcirculation imaging, the device is connected with a digital camera on the basis of a traditional slit lamp microscope, an adopted slit illumination light source is a narrow-band light source, illumination of the slit lamp light source is controlled by adjusting the width and the angle of the slit lamp light source in the acquisition process, uneven illumination exists, and therefore the situation that images are not clear is caused, focusing of a system is completed by an eyepiece objective lens on the microscope, and the focusing process is complicated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide an eyeball conjunctiva microcirculation imaging device, have that the formation of image is effectual, simple structure and focusing convenient characteristics, adopted adjustable reflection device, adjust the contained angle between speculum and the speculum support, make the light of annular LED lighting device transmission more evenly shine more fully to the eyeball surface after the reflection of speculum. The method is realized by the following technical scheme:
the utility model provides a bulbar conjunctiva microcirculation imaging device, includes device body and adjustable reflect meter, this internal light source irradiation device, fixed focus lens, liquid lens and the image sensor of installing in proper order of device, the liquid lens is connected with liquid lens drive controller, liquid lens drive controller is used for adjusting the radius of curvature of liquid lens.
The adjustable reflecting devices are symmetrically arranged at the end part of the device body up and down, each adjustable reflecting device comprises a reflecting mirror and a reflecting mirror support, the reflecting mirror is hinged with the reflecting mirror support, and an included angle between the reflecting mirror and the reflecting mirror support is adjustable; the reflector bracket is fixedly arranged on the device body, and an included angle is formed between the reflector bracket and the device body; the position of speculum is adjustable in the acquisition process, changes the contained angle between speculum and the speculum support can make the light that the light source sent more abundant even eyeball surface of shining after the reflection of speculum.
Preferably, the light source irradiation device is located at an end portion of the device body, is an annular lamp composed of a plurality of LEDs, is used for providing an illumination beam to an eyeball of the detected patient, and is located at an end portion of the device body close to the detected patient.
Preferably, still include the protective glass piece, the protective glass piece is located the outside of light source irradiation device, the protective glass piece is sheet glass, can protect light source irradiation device to and prevent that the pollutant from getting into the device body inside.
Preferably, the image sensor is a CCD or CMOS, and is configured to receive light with microcirculation information and perform photoelectric conversion on the light to transmit the light to the computer-aided imaging device, so that a microcirculation image is finally presented on the display screen.
Preferably, the reflector is an annular mirror surface, and aluminum is plated on the annular mirror surface.
Preferably, the included angle between the reflector bracket and the device body is 60 degrees.
Preferably, still include the liftable fixed station, the device body is installed on the liftable fixed station, conveniently adjusts the position.
The utility model discloses relative prior art has following beneficial effect:
the adjustable reflector device is arranged to adjust the included angle between the reflector and the reflector bracket, so that light rays emitted by the light source can be more sufficiently and uniformly irradiated onto the surface of an eyeball, and a clear eyeball conjunctiva microcirculation image can be quickly obtained by matching with the liquid lens for quick focusing; the structure is simple, and the focusing is convenient; the reflecting mirror adopts an annular mirror surface, so that the irradiation effect is better; in addition, the liftable fixing table placing device body is used, the best position for observing the microcirculation of the bulbar conjunctiva can be obtained through the liftable fixing table, and the collection of the follow-up microcirculation video is facilitated.
Drawings
Fig. 1 is a schematic view of the overall structure of the eye conjunctiva microcirculation imaging device of the present invention.
Description of reference numerals:
1, a device body; 11 fixed focus lens; 12 a liquid lens; 13 an image sensor; 14 light source irradiation means; 15 protecting the lens; 2 a computer-assisted imaging device; 3 a liquid lens drive controller; 4 an adjustable mirror arrangement; 41 a mirror support; a 42 mirror; and 5, lifting the fixed table.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, a bulbar conjunctiva microcirculation imaging device comprises a device body 1 and an adjustable reflection device 4, wherein a light source irradiation device 14, a fixed focus lens 11, a liquid lens 12 and an image sensor 13 are sequentially installed in the device body 1, specifically, the light source irradiation device 14, the fixed focus lens 11, the liquid lens 12 and the image sensor 13 are sequentially installed along the axial direction of the device body 1 from the direction close to a detected patient, the number of the fixed focus lenses 11 can be single or multiple, and the fixed focus lenses can be selected according to requirements.
The liquid lens 12 is connected with a liquid lens driving controller 3, and the liquid lens driving controller 3 is used for adjusting the curvature radius value of the liquid lens 12 to complete the image fast focusing and is in communication connection with the liquid lens 12. It should be noted that the liquid lens is a lens using liquid to change the focal length by changing the curvature of the liquid, and the technical solution is to select the liquid lens 12 directly from the prior art. How the liquid lens driving controller 3 adjusts the liquid lens is not an innovation point of the present technical solution, and it is only selected from the prior art, so the control process and the specific algorithm thereof are not specifically waited for here.
The adjustable reflecting device 4 is arranged at the end part of the device body 1 in an up-and-down symmetrical manner, the adjustable reflecting device 4 comprises a reflecting mirror 42 and a reflecting mirror bracket 41, the reflecting mirror 42 is hinged with the reflecting mirror bracket 41, and the included angle between the reflecting mirror 42 and the reflecting mirror bracket 41 can be adjusted in a rotating manner; the reflector holder 41 is fixed to the apparatus body 1 by screws, and an included angle θ is formed between the reflector holder 41 and the apparatus body 1, and the included angle θ is preferably 60 °, as shown in fig. 1, and the included angle θ between the reflector holder 41 and the apparatus body 1 can be selected according to the shape and size of the adjustable reflector or the apparatus body.
In practical application, the conjunctiva microcirculation imaging device of the eyeball further comprises a computer-aided imaging device 2, wherein the computer-aided imaging device 2 is respectively in communication connection with the image sensor 13 and the liquid lens driving controller 3; the computer-aided imaging device 2 is used for carrying out digital processing and imaging display on the microcirculation imaging image data and outputting a curvature adjusting instruction to the liquid lens driving controller 3 for focusing; since the computer-aided imaging apparatus 2 is a technical means commonly used in the art, and the computer-aided imaging apparatus 2 is not the invention of the present invention, it can be obtained from the prior art as required, and the specific components thereof will not be described herein.
Specifically, the light source irradiation device 14 is located at an end portion of the device body 1, is an annular lamp composed of a plurality of LEDs, and is used for providing an illumination beam to an eyeball of the patient to be examined, and is located at an end portion of the device body 1 close to the patient to be examined.
Specifically, the protection lens 15 is further included, the protection lens 15 is located outside the light source irradiation device 14, and the protection lens 15 is a flat glass, which can protect the light source irradiation device 14 and prevent contaminants from entering the inside of the device body 1.
Specifically, the image sensor 13 is a CCD or a CMOS, and is configured to receive light with microcirculation information and perform photoelectric conversion to the computer-aided imaging device 2, so that a microcirculation image is finally presented on the display screen.
Specifically, the reflector 42 is an annular mirror surface, the annular mirror surface is plated with aluminum, the reflectivity is equal to or greater than 99%, the light source irradiation device 14 is an annular LED, so the reflector 42 with the annular mirror surface is adopted, uniform irradiation of light to the eyeball surface can be ensured, the reflector 42 is hinged on the reflector bracket 41, in the acquisition process, the reflector bracket 41 is fixedly mounted on the device body 1, so the included angle between the reflector bracket 41 and the vertical direction is a fixed value, and therefore, changing the included angle between the reflector 42 and the reflector bracket 41 substantially changes the angle α value between the reflector 42 and the vertical direction, as shown in fig. 1, the range of α can be 30 ° to 120 °, preferably, α is 70 ° is optimal, and light emitted by the light source irradiation device 14 can be more sufficiently and uniformly irradiated to the eyeball surface of the patient to be detected.
Still include liftable fixed station 5, install on liftable fixed station 5 device body 1, liftable fixed station 5 can lead to ground hydraulic cylinder drive push rod and realize raising and lowering functions, also can realize raising and lowering functions through motor drive push rod.
The working process of the technical scheme is as follows:
firstly, the head of a patient to be detected is placed in a head fixer, the head movement is reduced, the power supply of the eyeball conjunctiva microcirculation imaging device is started, the annular LED lamp of the light source irradiation device emits light with the wavelength of 525nm, the illumination value of the light source is adjusted to the range of 1000 plus 1500lux before collection, and the axial angle alpha value of the reflector is adjusted, so that the light can be more fully irradiated on the surface of the eyeball; after the light enters the eyeball, the light with the microcirculation information is reflected and then transmitted to the image sensor after passing through the fixed focus lens and the liquid lens. The light is transmitted to a computer-aided imaging device for image processing after photoelectric conversion, and a microcirculation image is displayed in real time by the computer-aided imaging device. Before collection, an image on a display of the computer-aided imaging device is observed, a liftable fixed platform is adjusted while a microcirculation image is observed until the device can completely observe the conjunctiva of the eyeball, a curvature adjusting instruction is input into the computer-aided imaging device to adjust a liquid lens driving controller so as to change the curvature radius value of a liquid lens, when the microvasculature of the bulbar conjunctiva can be observed, the illumination of a light source is enhanced to 2000 plus 5000lux (the illumination value is in the range of the light intensity which can be accepted by the eyes), the curvature is finely adjusted by the computer-aided imaging device so as to finely adjust the liquid lens driving controller, and a microcirculation imaging video is recorded until the microcirculation image is clearly displayed.
The above is only a preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (7)
1. The bulbar conjunctiva microcirculation imaging device is characterized by comprising a device body (1) and an adjustable reflecting device (4), wherein a light source irradiation device (14), a fixed-focus lens (11), a liquid lens (12) and an image sensor (13) are sequentially arranged in the device body (1), the liquid lens (12) is connected with a liquid lens driving controller (3), and the liquid lens driving controller (3) is used for adjusting the curvature radius of the liquid lens (12);
adjustable reflect meter (4) longitudinal symmetry set up in the tip of device body (1), adjustable reflect meter includes speculum (42) and speculum support (41), speculum (42) with speculum support (41) are articulated, the contained angle is adjustable between speculum and the speculum support, speculum support (41) fixed mounting be in on device body (1), with there is the contained angle in device body (1) axial.
2. The conjunctiva microcirculation imaging device according to claim 1, wherein the light source irradiation device (14) is located at the end of the device body (1) and is an annular lamp composed of a plurality of LEDs.
3. The conjunctiva microcirculation imaging device according to claim 1, further comprising a protective lens (15), wherein the protective lens (15) is located outside the light source irradiation device (14), and the protective lens (15) is a flat glass.
4. The conjunctiva microcirculation imaging device according to claim 1, wherein the image sensor (13) is a CCD or CMOS.
5. The bulbar conjunctiva microcirculation imaging device according to claim 1, wherein the reflector (42) is an annular mirror surface and is aluminized on the annular mirror surface.
6. The retrobulbar conjunctiva microcirculation imaging device according to claim 1, characterized in that the angle between the reflector support (41) and the device body (1) is 60 °.
7. The conjunctiva microcirculation imaging device according to any one of claims 1 to 6, further comprising a liftable fixing table (5), wherein the device body (1) is mounted on the liftable fixing table (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922131995.6U CN211355395U (en) | 2019-12-03 | 2019-12-03 | Bulbar conjunctiva microcirculation imaging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922131995.6U CN211355395U (en) | 2019-12-03 | 2019-12-03 | Bulbar conjunctiva microcirculation imaging device |
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| CN211355395U true CN211355395U (en) | 2020-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115855454A (en) * | 2023-02-10 | 2023-03-28 | 武汉加特林光学仪器有限公司 | Detection device and method for near-to-eye display products adaptive to different diopters |
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2019
- 2019-12-03 CN CN201922131995.6U patent/CN211355395U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115855454A (en) * | 2023-02-10 | 2023-03-28 | 武汉加特林光学仪器有限公司 | Detection device and method for near-to-eye display products adaptive to different diopters |
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