CN115836837A - Ophthalmologic inspection apparatus - Google Patents
Ophthalmologic inspection apparatus Download PDFInfo
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- CN115836837A CN115836837A CN202310132992.2A CN202310132992A CN115836837A CN 115836837 A CN115836837 A CN 115836837A CN 202310132992 A CN202310132992 A CN 202310132992A CN 115836837 A CN115836837 A CN 115836837A
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Abstract
The invention discloses an ophthalmologic detection device, which belongs to the technical field of medical appliances and comprises two frame bodies connected together through a nose support, wherein an eyeshade shell is arranged on one side of each frame body, which is far away from a human body, a central hole for installing lenses or an optical sensor is formed in the eyeshade shell, the central hole is positioned on the central line of the eyeshade shell, a plurality of inner ring light sources are arranged on the inner wall of the eyeshade shell, which is close to the central hole, a plurality of outer ring light sources are arranged on the inner wall of the eyeshade shell, which is far away from the central hole, the inner ring light sources and the outer ring light sources are distributed in an annular array by taking the central hole as the center, a head band is arranged on each frame body, a control box is arranged on each head band, and the inner ring light sources and the outer ring light sources are both connected with the control boxes. The invention guides the person to be detected to watch by setting the lighting position of the light source, achieves the purpose of finely adjusting the rotation direction of the eyes, thereby realizing the purpose of conveniently detecting the accurate angle state of the eyes and being widely applied to the ophthalmology detection.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to an ophthalmologic detection device.
Background
Ophthalmology is a subject who studies diseases related to the visual system including eyeball and tissues related to the eyeball, and routine examination of ophthalmology includes visual function examination (vision, visual field, color vision, scotopic adaptation, diopter, stereovision, eye position, electro-oculogram, etc.) tonography, fundus examination, slit-lamp microscopy, etc. Most of the examinations need to be completed by guiding the direction of the eyeball, such as slit lamp examination, B-mode examination of the eye, eye position examination by a covering method and the like.
The current method for controlling the direction of the eyeball in the ophthalmic detection is generally performed through language communication between a detector and a detected person, for example, speaking to look up, looking to the right, and the like. Although the prior art (chinese patent CN103799964B, patent application number 201310549550.4, named as an ophthalmic apparatus and an ophthalmic imaging method) passively locates the position of the specific tissue of the eyeball by introducing an image recognition algorithm, it does not have a function of actively guiding the direction of the eyeball.
Therefore, in the field of medical device technology, there is still a need for research and improvement of ophthalmic detection devices, which is also a research focus and emphasis in the field of medical device technology at present, and is the starting point for the completion of the present invention.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is as follows: the utility model provides an ophthalmology detection device lights the position through setting up the light source, and the guide is watched by the detection person, has reached the eye rotation direction of adjusting more meticulously to the mesh of being convenient for detect the accurate angle state of eye has been realized.
In order to solve the technical problem, the technical scheme of the invention is as follows: the utility model provides an ophthalmology detection device, includes that two hold in the palm the framework that links together through the nose, keeps away from one side of human body in every framework and all installs the eye-shade casing, the eye-shade casing is clean shot coronary structure, set up the centre bore that is used for installing lens or optical sensor on the eye-shade casing, the centre bore is located on the central line of eye-shade casing, be close to on the inner wall of eye-shade casing the centre bore position is equipped with a plurality of inner ring light source, keep away from on the inner wall of eye-shade casing the centre bore position is equipped with a plurality of outer loop light source, inner ring light source and outer loop light source all with the centre bore distributes for central annular array, be equipped with the bandeau in the framework, install the control box on the bandeau, inner ring light source and outer loop light source all connect the control box, control box connection control handles the end. The ophthalmologic detection method of the ophthalmologic detection apparatus is as follows:
step one, a detector inputs a target direction towards which eyeballs face to a control processing end, the control processing end adds a correction angle (the correction angle is initially 0) according to the target direction set by the detector, the correction angle is converted into a control signal for lighting a light source, an annular light source of the eyeballs A is controlled to light corresponding light points, the light points are used for guiding the eyeballs A to face to the right front or a designated angle,
step two, the control processing end sends a control signal at the beginning of 110 or 111 after a preset time (for example, 5 seconds) or according to the input of the examiner, controls the inner and outer rings of the eyeball A to be totally bright, aims to improve the light input quantity of the eyeball A of the examiner, enables the pupil of the eyeball A to shrink, enables the pupil of the eyeball B to shrink synchronously due to the principle of light reflection,
step three, the control processing end opens the optical sensor corresponding to the eyeball B for communication when starting to execute the step two, acquires a plurality of continuous shooting images or a section of video of the eyeball B for acquiring the miosis information of the eyeball B, enables the control processing end to position the pupil position of the eyeball B according to the color depth data in the pictures or the videos or the pupil activity change data between picture frames or video frames, and accordingly acquires the orientation direction of the eyeball B,
if image information is acquired, acquiring one image every 100 milliseconds from the lighting moment according to the difference of pupils of different people in light reflex time, stopping acquiring in no less than 5000 milliseconds, acquiring no less than 51 images in total,
if video information is acquired, the sampling frequency is not lower than 25Hz, the video duration is not lower than 5000 milliseconds,
in one case, the control processing end can turn on the optical sensor corresponding to the eyeball B and simultaneously turn on part or all of the annular light source of the eyeshade shell where the eyeball B is located to adjust the ambient light according to the measurement requirement of the eyeball B, and in particular, under the condition that the optical sensor installed on the eyeshade shell where the eyeball B is located is only an infrared sensor, the visible light illumination of the annular light source of the eyeshade shell where the eyeball B is located can be not turned on,
and step four, controlling the processing end to present and store the picture or video information acquired by the eyeball B sensor to the detector.
Optional steps are as follows: the control processing end obtains an angle to be corrected through projection of the direction of the eyeball B on a plane in front of the face, then verifies whether deviation of the direction to be corrected with the target direction set by the inspector in the step one is within a threshold (for example, the threshold is +/-12 degrees, and the deviation is 20 degrees), if the deviation is within the threshold, picture or video information and corresponding actual visual angle data are stored, if the deviation is outside the threshold, the deviation is multiplied by-1 to obtain a numerical value of the corrected angle, the corrected angle in the step one is replaced, and then the step one to the step four are executed.
As an improvement, the nose support is of a strip structure, a plurality of adjusting holes are formed in the nose support in a row, and the frame body is provided with clamping convex points matched with the adjusting holes.
As a further improvement, a protective ring is arranged on one side of the frame body close to the human body.
As another improvement, a plurality of mounting holes for mounting the distance measuring sensor are arranged between the inner ring light source and the outer ring light source on the eyeshade shell, and the plurality of mounting holes are distributed in an annular array by taking the central hole as a center. The ophthalmologic detection method of the ophthalmologic detection apparatus is as follows:
firstly, the examiner inputs parameters such as the starting scanning mode, the direction, the period and the like to the control processing end, the control processing end sends control signals to the device according to a certain frequency to control the inner ring or outer ring light spots of the shell of the eye mask A to rotate and light in sequence so as to guide the eye A to rotate in a small amplitude or a large amplitude,
step two, the control processing end sends a group of control signals to the device, so that the device guides the eyeball A through the light spot on the inner wall of the eyeshade shell, and simultaneously starts the data acquisition of a distance measuring sensor or an optical sensor of the eyeshade shell where the eyeball B is positioned for carrying out distance measuring scanning or optical tomography on the eyeball B,
and step three, after the control processor finishes rotating the light spot of the detection end of the eyeball A for one circle, the scanning information or the optical tomography information of the eyeball B is presented to the detector, and after the preset time, if the retest input of the detector is not received or the detector actively clicks an end button, the detection is stopped and the scanning information or the optical tomography information is stored.
As a further improvement, a shading cover used for plugging the mounting hole is detachably mounted on the eyeshade shell.
After the technical scheme is adopted, the invention has the beneficial effects that:
1. the ophthalmologic detection device enables ophthalmologic detection to be provided with a guiding function, and the guiding function and the detection function can be integrated into the same or distributed to different eyeshade shells according to actual conditions.
2. The double annular light source of the ophthalmic detection device can eliminate illumination dead angles, and is convenient for observing the conditions of all parts of eyes.
3. The ophthalmologic detection method based on the device establishes division of labor of the guide eye and the detection eye, and can eliminate measurement interference brought by the guide light.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope covered by the contents disclosed in the present invention.
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a nose pad according to an embodiment of the invention;
FIG. 3 is a schematic view of the mounting structure of the mask shell according to one embodiment of the present invention;
FIG. 4 is a schematic view of the mask shell mounting structure according to the second embodiment of the present invention;
FIG. 5 is a schematic view of the structural arrangement of the mask shell according to the second embodiment of the present invention;
in the figure: 1. frame, 2, nose pad, 201, regulation hole, 3, eye-shade casing, 4, guard ring, 5, bandeau, 6, control box, 7, optical sensor, 8, inner ring light source, 9, outer ring light source, 10, range sensor.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present specification, the terms "front", "rear", "left", "right", "inner", "outer" and "middle" are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship between the terms and the corresponding parts are also regarded as the scope of the present invention without substantial changes in the technical contents.
Example one
As shown in fig. 1, 2 and 3, the invention provides an ophthalmologic examination apparatus, comprising two frames 1 connected together by a nose pad 2, wherein an eyeshade housing 3 is mounted on one side of each frame 1 away from the human body, the eyeshade housing 3 is detachably mounted on the frame 1 in a manner of screw or buckle, the eyeshade housing 3 is a hollow spherical crown structure made of hard material, a central hole for mounting a lens or an optical sensor 7 is formed on the eyeshade housing 3, the optical sensor 7 can be a visible light camera or an infrared camera, the lens is an eyeshade camera or a lens for optical coherence tomography, the central hole is located on the central line of the eyeshade housing 3, the inner wall of the eye shield shell 3 is provided with a plurality of inner ring light sources 8 close to the central hole, the inner wall of the eye shield shell 3 is provided with a plurality of outer ring light sources 9 far away from the central hole, the inner ring light sources 8 and the outer ring light sources 9 are distributed in a central ring array by taking the central hole as the center, specifically, the inner ring light sources 8 are formed by arranging m1 LED lamp beads in a ring shape at the same included angle from the initial angle, generally, the value range of m1 is 4-30, the outer ring light sources 9 are respectively formed by arranging m2 LED lamp beads in a ring shape at the same included angle from the initial angle by taking the central hole as the center, and generally, the value range of m2 is 4-30. The frame body 1 is provided with a head band 5, the head band 5 is of an elastic telescopic structure and is usually an elastic rope or an elastic band, the head band 5 is provided with a control box 6, the inner ring light source 8 and the outer ring light source 9 are both connected with the control box 6, and the control box 6 is connected with a control processing end.
Wherein, the nose holds in the palm 2 and is the banding structure, and the nose holds in the palm 2 and goes up to be listed as and be provided with a plurality of regulation hole 201, is equipped with the buckle bump with regulation hole 201 looks adaptation on the framework 1, and the buckle bump can buckle in corresponding regulation hole 201 to adjust the distance between two frameworks 1, realize the effect of the different interpupillary distances of adaptation, use with the person of detecting who satisfies different interpupillary distances, expanded this detection device's application range.
Be close to human one side on the framework 1 and be equipped with guard ring 4, guard ring 4 is soft annular structures such as rubber, silica gel or sponge, can be better press close to the facial skin of examining person on the one hand, prevents the light leak, and on the other hand, the 4 softer materials of guard ring have increased the comfort level that the person of examining wore the device.
The control box 6 comprises a box body, a communication module, an analysis module and a driving module are arranged in the box body, an input flat cable interface is arranged on the box body, an output flat cable interface is arranged on the eyeshade shell, the conveying flat cable interface is correspondingly connected with an inner ring light source 8 and an outer ring light source 9 respectively, the output flat cable interface is connected with the input flat cable interface through a transmission line, the communication module comprises a universal interface chip of a USB bus, such as CH375, the communication module inputs bus messages and outputs serial port messages of a UART communication protocol. The analysis module includes a microprocessor chip, such as MSP430, and after the processing program is loaded, the analysis module can identify the serial port message input by the communication module and convert the serial port message into the switch and brightness control information of the driving chip. The driving module comprises one or more LED driving chips, such as LT3746, 32 paths of LED drivers with voltage reduction control are provided, each LED lamp bead switch can be independently controlled, high-brightness light and low-brightness light are emitted in a PWM mode, a communication interface of the control box 6 is connected with the control processing end to transmit data and supply power, the communication interface is in a microUSB or USB-C specification, and power lines of the communication interface are respectively connected to the communication module, the analysis module and the driving module and used for supplying power to the modules. The control processing end can be any form such as a PC, a Pad or a handheld terminal, a light source operation command set by a detector is converted into a corresponding control signal and is sent to the control box 6 through a USB connecting line, and after the control signal is received by the device, the device executes corresponding operation of the light-emitting points in the corresponding eye shield shell 3, for example, the inner ring light source 8 emits light integrally, the outer ring light source 9 emits light integrally, the single point light emits light, the light points are sequentially lightened in the inner ring light source 8 or the outer ring light source 9 to have clockwise or anticlockwise effect, and the like. In addition, the control processing end can be connected with a sensor arranged in the eyeshade shell 3 and used for receiving corresponding signals, including an anterior segment image signal, a retina imaging signal, an eyeball distance signal, a tomography imaging signal and the like.
In the present invention, a plurality of ophthalmic-testing devices can share one control-processing terminal. And, the control processing end can adopt the wireless communication connection that bluetooth or wiFi module realized between 6 with the control box.
The following describes a case of control signals, for example, the number of light spots of the inner and outer annular light sources is 30, the included angle between adjacent light spots is 12 °, and the control signals are 8-bit binary numbers including position control bits, brightness control bits, and angle control bits, and are designed as follows:
01011111, for example, represents that the inner ring light source 8 is lit up entirely at low brightness and can be used to direct view; 10100011 indicates that the light-emitting point of the outer ring light source 9 at 24 degrees is lighted with high brightness and can be used to guide the gaze angle.
When the eye mask is used, a detected person (patient) wears the eye detection device, the front parts of two eyes A, B are respectively opposite to the center of the eye mask shell, and the detected person (doctor) operates the control processing end. The eyeball B is the eye to be inspected, and the eyeball a and the eyeball B may be the same eye (in this case, only one eyecup casing may be installed), or may be different eyes of the same person to be inspected.
The ophthalmic test method of this example is as follows:
step one, inputting a target direction towards which eyeballs face to a control processing end by a detector, adding the target direction and a correction angle (the correction angle is initially 0) by the control processing end according to the target direction set by the detector, converting the result into a control signal for lighting a light source, controlling an annular light source of the eyeballs A to light corresponding light points, and guiding the eyeballs A to face to the right front or a specified angle,
step two, the control processing end sends a control signal at the beginning of 110 or 111 after a preset time (for example, 5 seconds) or according to the input of the examiner, controls the inner and outer rings of the eyeball A to be totally bright, aims to improve the light input quantity of the eyeball A of the examiner, enables the pupil of the eyeball A to shrink, enables the pupil of the eyeball B to shrink synchronously due to the principle of light reflection,
step three, the control processing end opens the optical sensor 7 corresponding to the eyeball B for communication when starting to execute the step two, and obtains a plurality of continuous shooting images or a section of video of the eyeball B for obtaining the miosis information of the eyeball B, so that the control processing end positions the pupil position of the eyeball B according to the color depth data in the picture or the video and/or the pupil activity change data between pictures or video frames, thereby obtaining the orientation direction of the eyeball B,
if image information is acquired, acquiring one image every 100 milliseconds from the lighting moment according to the difference of pupils of different people in light reflex time, stopping acquiring in no less than 5000 milliseconds, acquiring no less than 51 images in total,
if video information is acquired, the sampling frequency is not lower than 25Hz, the video duration is not lower than 5000 milliseconds,
in one case, the control processing end can turn on the optical sensor 7 corresponding to the eyeball B and simultaneously turn on part or all of the annular light source of the eyeshade shell where the eyeball B is located to adjust the ambient light according to the measurement requirement of the eyeball B, and in particular, under the condition that the optical sensor 7 installed on the eyeshade shell where the eyeball B is located is only an infrared sensor, the visible light illumination of the annular light source of the eyeshade shell where the eyeball B is located can be not turned on,
and step four, controlling the processing end to present and store the picture or video information acquired by the eyeball B sensor to the detector.
Optional steps are as follows: the control processing end obtains an angle to be corrected through projection of the direction of the eyeball B on a plane in front of the face, then verifies whether deviation of the direction to be corrected with the target direction set by the inspector in the step one is within a threshold (for example, the threshold is +/-12 degrees, and the deviation is 20 degrees), if the deviation is within the threshold, picture or video information and corresponding actual visual angle data are stored, if the deviation is outside the threshold, the deviation is multiplied by-1 to obtain a numerical value of the corrected angle, the corrected angle in the step one is replaced, and then the step one to the step four are executed.
Example two
As shown in fig. 4 and 5, the present invention provides an ophthalmologic inspection apparatus, which has a structure substantially the same as that of the first embodiment, and is different from the first embodiment in that, on the basis of the first embodiment, a plurality of mounting holes for mounting a distance measuring sensor 10 are provided on an eyeshade housing 3 between an inner ring light source 8 and an outer ring light source 9, the distance measuring sensor 10 may be a laser or ultrasonic probe, the plurality of mounting holes are distributed in an annular array with a central hole as a center, specifically, n mounting holes are provided, the n mounting holes are arranged in an annular array with the central hole as a center and with the same included angle from an initial angle, and generally, n has a value range of 3-8. The eye shield shell 3 is detachably provided with a shading cover for plugging the mounting hole, the shading cover is usually connected with the eye shield shell 3 in a spiral or buckle mode, the shading cover is removed during use, and the distance measuring sensor 10 is installed.
The ophthalmic test method of the present example is as follows:
firstly, the examiner inputs parameters such as the starting scanning mode, the direction, the period and the like to the control processing end, the control processing end sends control signals to the device according to a certain frequency to control the inner ring or outer ring light spots of the shell of the eye mask A to rotate and light in sequence so as to guide the eye A to rotate in a small amplitude or a large amplitude,
for example, if the inspector inputs the requirement that the outer ring is lighted, the direction is clockwise, the period is 15 seconds, the number of the light points of the outer ring light source in the eyeshade shell is 30, the control processing end sends a control signal of 10100001 at 0 second, sends 10100010 … … at 0.5 second until 10111110 at 14.5 second, sends a light source off signal at the beginning of 00 at 15 second,
step two, the control processing end sends a group of control signals to the device, so that the device guides the eyeball A through a light spot on the inner wall of the eyeshade shell 3, and simultaneously starts data acquisition of a distance measuring sensor 10 or an optical sensor 7 of the eyeshade shell where the eyeball B is located for distance measuring scanning or optical tomography of the eyeball B,
and step three, after the control processing end finishes rotating the light spot of the detection end of the eyeball A for one circle, the scanning information or the optical tomography information of the eyeball B is presented to the detector, and after the preset time, if the retest input of the detector is not received or the detector actively clicks an end button, the detection is stopped and the scanning information or the optical tomography information is stored.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (5)
1. Ophthalmology detection device, including two frameworks that link together through nose support, its characterized in that keeps away from the human one side in every framework and all installs the eye-shade casing, the eye-shade casing is clean shot coronary structure, set up the centre bore that is used for installing lens or optical sensor on the eye-shade casing, the centre bore is located on the central line of eye-shade casing, be close to on the inner wall of eye-shade casing the centre bore position is equipped with a plurality of inner ring light source, keep away from on the inner wall of eye-shade casing the centre bore position is equipped with a plurality of outer loop light source, inner ring light source and outer loop light source all use the centre bore distributes as central annular array, be equipped with the bandeau in the framework, install the control box on the bandeau, inner ring light source and outer loop light source all connect the control box, control box connection control handles the end.
2. The ophthalmic testing device of claim 1, wherein the nose pad is a strip-shaped structure, a plurality of adjusting holes are arranged in a row on the nose pad, and the frame body is provided with snap bumps adapted to the adjusting holes.
3. An ophthalmic test device as claimed in claim 2, wherein the frame body is provided with a guard ring on the side adjacent to the human body.
4. An ophthalmic test device as claimed in claim 1, 2 or 3, wherein a plurality of mounting holes for mounting a distance measuring sensor are provided on the eyecup housing between the inner ring light source and the outer ring light source, and a plurality of said mounting holes are distributed in an annular array with the central hole as a center.
5. The ophthalmic-testing device of claim 4, wherein a light-shielding cover for blocking said mounting hole is detachably mounted on said eyecup housing.
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| CN108433699A (en) * | 2018-06-07 | 2018-08-24 | 杭州瞳创医疗科技有限公司 | A kind of eyes eye-ground photography machine equipment |
| CN210810960U (en) * | 2019-07-18 | 2020-06-23 | 南京览视医疗科技有限公司 | Diagnostic device of intelligent screening strabismus and diopter |
| CN211528849U (en) * | 2019-11-26 | 2020-09-18 | 赵中 | Glasses with superposable lenses for eye medical treatment |
| CN110881945A (en) * | 2019-12-11 | 2020-03-17 | 中国人民解放军第四军医大学 | Coma patient pupil observation device |
| CN115670372A (en) * | 2021-07-21 | 2023-02-03 | 朱玮 | Video eye movement detection equipment |
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