Amblyopia side center watching visual side correcting device

Abstract

The invention provides an amblyopia side center watching visual side correcting device, and belongs to the field of medical instrument manufacturing. The device comprises a base, an ophthalmoscope, a camera, a display screen, a forehead support bracket and an adjusting mechanism, the camera is electrically connected with the display screen; the forehead support bracket and the display screen are both mounted on the base; the ophthalmoscope is installed on the base through the adjusting mechanism and located between the forehead support and the display screen. The ophthalmoscope is provided with a peephole, and the camera is fixed on the peephole; the adjusting mechanism comprises a front-back adjusting device, an up-down adjusting device, a left-right adjusting device and a rotating device which are connected in sequence; the ophthalmoscope is fixed to the rotating device, and the front-back adjusting device is installed on the base. The eyes of the human body are relatively fixed through the forehead support bracket, and meanwhile, the position of the ophthalmoscope is moved through the adjusting mechanism, so that the eye ground condition can be accurately and stably shot through the camera, the shot image is presented on the display screen, and observation and inspection by an operator are greatly facilitated.

Description

Technical Field

[0001] The invention relates to medical device manufacturing technology, in particular to a paracentral fixation visualization correction device for amblyopia, and belongs to the technical field of medical product manufacturing. Background Art

[0002] Fundus ophthalmoscope is a medical device used to observe the fundus of the eye. It usually consists of a magnifying glass and a light source. Doctors use the magnifying glass to observe the blood vessels, retina and other structures of the fundus to check whether there are abnormalities or lesions in the eye. Fundus ophthalmoscope can provide detailed fundus images to help doctors determine whether there are fundus lesions, such as retinal detachment, macular degeneration, glaucoma, etc.

[0003] When a handheld ophthalmoscope is used to observe the fundus through the pupil, the reflection of the light emitted by the ophthalmoscope can be seen in the fundus. Generally speaking, this reflection point is located in the center of the fovea of ​​the fundus, which is normal. If this reflection point is not in the center of the fovea, it is abnormal, also known as paracentral fixation. The more deviation, the more serious the abnormality.

[0004] Amblyopia patients often have the reflection point not in the center of the fovea, which leads to poor vision. For amblyopia patients, the first thing to do is to check whether there is paracentral fixation; if so, then it is necessary to correct it in order to achieve the purpose of recovery. The above process is that the operator uses a single eye close to the peephole of the handheld ophthalmoscope to observe the patient's pupil, and sees the fundus retina through the pupil to analyze, judge and operate.

[0005] In the prior art, the whole inspection process is very difficult due to the handheld operation. The operator must face the patient, almost close to the patient, and look through the small pupil to see the fundus. Once the hand shakes, or the patient blinks or moves, the observation effect will be affected. The operator not only needs to keep a fixed posture, but also use one finger to turn the diopter wheel to make real-time adjustments until the image is clear.

[0006] If it is found that the fundus reflective point of an amblyopic patient is not in the center of the fovea, but beside it, it means that the amblyopic patient is fixating at the side of the center and needs to be corrected to fixate at the fovea. This is called correction. In actual operation, it is to select the fundus lens light spot with a special black circle in the middle. While still maintaining the correct focus, cover the reflective point with the black circle spot and lead it to the center of the fovea. This operation still requires the operator to be skilled in movement, control the distance and angle between the patient's head and the fundus lens and maintain it for 30 seconds. Repeat this process 4 times every half an hour. This places very high demands on the operator, and the probability of error is very high.

[0007] Therefore, the operation adopted by the existing technology is very difficult, and an operator with a lot of experience is required to perform effective fundusscopic observation and judgment, which greatly increases the threshold for paracentral fixation correction of amblyopia using a fundusoscope. Summary of the invention

[0008] The present invention provides a new paracentral fixation visual correction device for amblyopia, which can accurately control the position of an ophthalmoscope through an adjustment mechanism, thereby realizing stable observation of the fundus condition, so as to solve the technical problem of inconvenient operation of a handheld ophthalmoscope in the prior art.

[0009] The visual correction device for paracentral fixation of amblyopia of the embodiment of the present invention comprises: a base, an ophthalmoscope, a camera, a display screen, a forehead support and an adjustment mechanism; the camera and the display screen are electrically connected; The forehead support bracket and the display screen are both mounted on the base; the fundus ophthalmoscope is mounted on the base through the adjustment mechanism and is located between the forehead support bracket and the display screen; The fundus ophthalmoscope has a peephole, and the camera is fixed on the peephole; the adjustment mechanism includes: a front and back adjustment device, an up and down adjustment device, a left and right adjustment device and a rotating device connected in sequence; the fundus ophthalmoscope is fixed on the rotating device, and the front and back adjustment device is installed on the base.

[0010] The amblyopia paracentral fixation visualization correction device as described above, wherein the front-to-back adjustment device comprises: front-to-back slide rails and front-to-back sliders; the front-to-back slide rails are fixed on the base, and the front-to-back sliders are slidably installed on the front-to-back slide rails.

[0011] The amblyopia paracentral fixation visualization correction device as described above, wherein the up and down adjustment device comprises: a vertical slide rail and a vertical slider; the vertical slide rail is fixed on the front and rear sliders, and the vertical slider is slidably installed on the vertical slide rail.

[0012] The amblyopia paracentral fixation visualization correction device as described above, wherein the left and right adjustment device includes: left and right slide rails and left and right sliders; the left and right slide rails are fixed on the vertical slider, and the left and right sliders are slidably installed on the left and right slide rails.

[0013] The visual correction device for paracentral fixation of amblyopia as described above, wherein the rotating device comprises: a fixed seat, a pitch angle adjuster and a horizontal angle adjuster; the fixed seat is fixed on the left and right slide rails, the pitch angle adjuster is rotatably mounted on the fixed seat, and the horizontal angle adjuster is rotatably mounted on the pitch angle adjuster; the fundus ophthalmoscope is fixed on the horizontal angle adjuster; The pitch angle adjuster has a horizontal rotation axis, and the horizontal angle adjuster has a vertical rotation axis; the vertical rotation axis and the horizontal rotation axis are perpendicular to each other.

[0014] As described above, the visual correction device for paracentral fixation of amblyopia, wherein a clamping bracket is provided on the horizontal angle adjuster; the camera is mounted on the horizontal angle adjuster through the clamping bracket.

[0015] As described above, in the paracentral fixation visualization correction device for amblyopia, the forehead support bracket is a rectangular frame structure, and a height-adjustable chin support is provided on the forehead support bracket.

[0016] The amblyopia paracentral fixation visualization correction device as described above, wherein the clamping bracket comprises: a height adjustment frame and a horizontal adjustment frame; the horizontal adjustment frame is installed on the height adjustment frame, and the camera is installed on the horizontal adjustment frame.

[0017] As described above, the visual correction device for paracentral fixation of amblyopia, wherein an electric lifting platform capable of adjusting the height of the base is arranged below the base.

[0018] The amblyopia paracentral fixation visualization correction device as described above, wherein the camera is a smart phone with integrated camera function; and there is a communication connection between the camera and the display screen.

[0019] In the embodiment of the present invention, the human head is relatively fixed by a forehead support bracket so that the pupil corresponds to the ophthalmoscope, and the position of the ophthalmoscope is accurately moved by an adjustment mechanism, so that the fundus condition can be accurately and stably photographed by a camera, and the photographed image is presented on a display screen, thereby avoiding the defect of inconvenient observation caused by a handheld ophthalmoscope and greatly facilitating observation and inspection by the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a side structural diagram of a device for visual correction of paracentral fixation of amblyopia according to an embodiment of the present invention; Figure 2 It is a top view of the structure of the amblyopia paracentral fixation visualization correction device according to an embodiment of the present invention; Figure 3 Another side structural diagram of the amblyopia paracentral fixation visualization correction device according to an embodiment of the present invention; Figure 4 This is a side structural diagram of a device for visual correction of paracentral fixation of amblyopia according to another embodiment of the present invention. DETAILED DESCRIPTION

[0021] The amblyopia paracentral fixation visualization correction device described in the present invention can be made of the following materials and components, but is not limited to the following materials and components, such as: a bracket, an adjustment mechanism, a display screen, a camera, a chin rest, an ophthalmoscope, etc.

[0022] like Figure 1 The figure shows a side structural diagram of a device for visualizing the correction of amblyopia with paracentral fixation according to an embodiment of the present invention; Figure 2 and Figure 3 .

[0023] The amblyopia paracentral fixation visualization correction device of this embodiment includes: a base 1, an ophthalmoscope 2, a camera 3, a display screen 5, a forehead support 4 and an adjustment mechanism; the camera 3 and the display screen 5 are electrically connected; the camera 3 and the display screen 5 can be connected by a wired connection or a wireless communication transmission protocol. Generally, the camera 3 is a smart phone with an integrated camera function; there is a communication connection between the camera 3 and the display screen 5.

[0024] The forehead support bracket 4 and the display screen 5 are both installed on the base 1; the fundus scope 2 is installed on the base 1 through the adjustment mechanism and is located between the forehead support bracket 4 and the display screen 5; the fundus scope 2 is used to correspond to the human pupil and to observe the fundus condition.

[0025] The fundus ophthalmoscope 2 has a peephole, and the camera 3 is fixed on the peephole; the adjustment mechanism includes: a front and back adjustment device, an up and down adjustment device, a left and right adjustment device and a rotating device connected in sequence; the fundus ophthalmoscope 2 is fixed on the rotating device, and the front and back adjustment device is installed on the base 1.

[0026] In actual use, the forehead support bracket 4 is a rectangular frame structure, and a height-adjustable chin support plate 40 is provided on the forehead support bracket 4. The chin support plate 40 can be adjusted in height to accommodate different face heights. In actual use, the patient places the chin on the chin support plate 40 on the forehead support bracket 4, and places the forehead against the rectangular frame structure, so that the eyes remain still relative to the entire forehead support bracket, thereby facilitating inspection and observation.

[0027] In the embodiment of the present invention, the human head is relatively fixed by a forehead support bracket so that the pupil corresponds to the ophthalmoscope, and the position of the ophthalmoscope is accurately moved by an adjustment mechanism, so that the fundus condition can be accurately and stably photographed by a camera, and the photographed image is presented on a display screen. The whole process is easy to operate, the image will not shake or be lost, the observation is convenient, the image cleaning is reliable, and the camera can be used to take pictures and record, thereby avoiding the inconvenience of observation caused by a handheld ophthalmoscope and greatly facilitating the operator to observe and inspect.

[0028] The amblyopia paracentral fixation visualization correction device of this embodiment, the front-to-back adjustment device comprises: a front-to-back slide rail 11 and a front-to-back slider 12; the front-to-back slide rail 11 is fixed on the base 1, and the front-to-back slider 12 is slidably mounted on the front-to-back slide rail 11. The front-to-back slide rail 11 is used to adjust the distance between the fundus scope and the pupil.

[0029] Further, the up-down adjustment device comprises: a vertical slide rail 13 and a vertical slider 14; the vertical slide rail 13 is fixed on the front and rear sliders 12, and the vertical slider 14 is slidably mounted on the vertical slide rail 13. The vertical slide rail 13 and the vertical slider 14 are used to adjust the height of the fundus scope, so as to facilitate alignment of the pupil.

[0030] Preferably, the left-right adjustment device comprises left-right slide rails 15 and left-right sliders 16; the left-right slide rails 15 are fixed on the vertical slider 14, and the left-right sliders 16 are slidably mounted on the left-right slide rails 15. The left-right slide rails 15 and the left-right sliders 16 are used to adjust the left-right offset of the fundus scope, so as to facilitate alignment of the pupil.

[0031] In actual use, Figure 4 As shown, the rotating device 17 includes: a fixed seat, a pitch angle adjuster 171 and a horizontal angle adjuster 172; the fixed seat is fixed to the left and right slide rails 16, the pitch angle adjuster 171 is rotatably mounted on the fixed seat; the horizontal angle adjuster 172 is rotatably mounted on the pitch angle adjuster 171. The fundus ophthalmoscope 2 is fixed on the horizontal angle adjuster 172.

[0032] Generally, the pitch angle adjuster has a horizontal rotation axis (the horizontal rotation axis is parallel to the horizontal plane), and the horizontal angle adjuster has a vertical rotation axis (the vertical rotation axis is perpendicular to the horizontal plane); the vertical rotation axis and the horizontal rotation axis are perpendicular to each other.

[0033] The pitch angle adjuster and the horizontal angle adjuster can adjust the focusing angle in the pitch direction and the left and right direction when the ophthalmoscope is aimed at the pupil, so as to form a stable light spot on the fundus.

[0034] In this embodiment, in order to facilitate adjustment, the rotating device 17, the front and rear adjustment device, the left and right adjustment device and the up and down adjustment device are all provided with knobs that are easy to operate; during actual use, it is only necessary to turn the knob, which is connected to a worm gear, and the worm gear and the turbine are mutually transmitted, so that the gear on the outside of the turbine moves on the track, and finally high-precision adjustment of the front, back, left, right, up and down is achieved.

[0035] In the visual correction device for paracentral fixation of amblyopia of this embodiment, a clamping bracket 30 is provided on the pitch angle adjuster; the camera 3 is mounted on the rotating device 17 through the clamping bracket 30 .

[0036] Typically, the clamping bracket 30 includes: a height adjustment frame 31 and a horizontal adjustment frame; the horizontal adjustment frame is mounted on the height adjustment frame 31 , and the camera 3 is mounted on the horizontal adjustment frame.

[0037] In the visual correction device for paracentral fixation of amblyopia of this embodiment, an electric lifting platform capable of adjusting the height of the base 1 is arranged below the base 1 .

[0038] The specific operation steps of the present invention during use are as follows: First, fix the patient's head on the forehead support bracket, so that the head can be easily kept still; then, the electric lifting platform can be adjusted to move the forehead support bracket on the base 1 up and down, so that the patient can maintain a natural sitting state and reduce fatigue.

[0039] Then, the ophthalmoscope is fixed on a set of adjustment mechanisms that can be adjusted up and down, left and right, front and back, and rotated, so that it can be accurately and stably aimed at the fundus. The mobile phone with a high-definition camera is also firmly fixed behind the ophthalmoscope to ensure that the fundus condition can be clearly displayed through the peephole of the ophthalmoscope and projected onto an extra-large display screen.

[0040] During the whole process, the operator only needs to sit 50 cm in front of the patient, look at the large screen or mobile phone screen, operate the handwheels or knobs in each direction with both hands, find the best focus point, and press the remote control switch to take pictures or record videos. Obviously, this solution can greatly reduce the technical level of the operator, benefiting professional ophthalmologists, optometrists, vision trainers, etc.

[0041] In addition, the amblyopia paracentral fixation visualization correction device of the present invention has low manufacturing cost, exquisite layout, compact structural design, stable finished product quality, convenient operation and maintenance, and is suitable for various fundus condition observation equipment.

[0042] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages and disadvantages of the embodiments. Through the description of the above implementation methods, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of some deformations plus the necessary general technology superposition; of course, they can also be implemented by simplifying some important technical features. Based on this understanding, the technical solution of the present invention is essentially or contributes to the prior art in the following aspects: the overall structure and connection method, and the structure described in each embodiment of the present invention.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A visual correction device for paracentral fixation of amblyopia, characterized in that: include: A base, an ophthalmoscope, a camera, a display screen, a forehead support and an adjustment mechanism; the camera and the display screen are electrically connected; The forehead support bracket and the display screen are both mounted on the base; the fundus ophthalmoscope is mounted on the base through the adjustment mechanism and is located between the forehead support bracket and the display screen; The fundus ophthalmoscope has a peephole, and the camera is fixed on the peephole; the adjustment mechanism comprises: a front-back adjustment device, an up-down adjustment device, a left-right adjustment device and a rotating device connected in sequence; The fundus ophthalmoscope is fixed on the rotating device, and the front-rear adjusting device is installed on the base.

2. The amblyopia paracentral fixation visualization correction device according to claim 1, characterized in that: The front-rear adjustment device comprises: front-rear slide rails and front-rear sliders; the front-rear slide rails are fixed on the base, and the front-rear sliders are slidably mounted on the front-rear slide rails.

3. The amblyopia paracentral fixation visualization correction device according to claim 2, characterized in that: The up-and-down adjustment device comprises: a vertical slide rail and a vertical slider; the vertical slide rail is fixed on the front and rear sliders, and the vertical slider is slidably mounted on the vertical slide rail.

4. The device for visual correction of paracentral fixation of amblyopia according to claim 3, characterized in that: The left-right adjustment device comprises left-right slide rails and left-right sliders; the left-right slide rails are fixed on the vertical sliders, and the left-right sliders are slidably mounted on the left-right slide rails.

5. The device for visual correction of paracentral fixation of amblyopia according to claim 4, characterized in that: The rotating device comprises: a fixed seat, a pitch angle adjuster and a horizontal angle adjuster; the fixed seat is fixed on the left and right slide rails, the pitch angle adjuster is rotatably mounted on the fixed seat, and the horizontal angle adjuster is rotatably mounted on the pitch angle adjuster; the fundus scope is fixed on the horizontal angle adjuster; The pitch angle adjuster has a horizontal rotation axis, and the horizontal angle adjuster has a vertical rotation axis; the vertical rotation axis and the horizontal rotation axis are perpendicular to each other.

6. The device for visual correction of paracentral fixation of amblyopia according to claim 5, characterized in that: The horizontal angle adjuster is provided with a clamping bracket; the camera is installed on the horizontal angle adjuster through the clamping bracket.

7. The visual correction device for paracentral fixation of amblyopia according to any one of claims 1 to 5, characterized in that: The forehead support bracket is a rectangular frame structure, and a height-adjustable chin support plate is arranged on the forehead support bracket.

8. The visual correction device for paracentral fixation of amblyopia according to claim 6, characterized in that: The clamping bracket comprises: a height adjustment bracket and a horizontal adjustment bracket; the horizontal adjustment bracket is installed on the height adjustment bracket, and the camera is installed on the horizontal adjustment bracket.

9. The visual correction device for paracentral fixation of amblyopia according to any one of claims 1 to 5, characterized in that: An electric lifting platform capable of adjusting the height of the base is arranged below the base.

10. The visual correction device for paracentral fixation of amblyopia according to any one of claims 1 to 5, characterized in that: The camera is a smart phone with integrated camera function; the camera is communicatively connected to the display screen.

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