Amblyopia side center watching visual side correcting device

Abstract

The utility model provides an amblyopia side center watching visual side correcting device, and belongs to the field of medical instrument manufacturing. The ophthalmoscope 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. According to the utility model, the eyes of a human body are relatively fixed through the forehead support bracket, and 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, and the shot image is displayed on the display screen, thereby greatly facilitating the observation and inspection of an operator.

Description

Technical Field

[0001] This utility model relates to medical device manufacturing technology, and more particularly to a visual correction device for peripheral central fixation in amblyopia, belonging to the field of medical supplies manufacturing technology. Background Technology

[0002] An ophthalmoscope is a medical device used to examine the fundus of the eye. It typically consists of a magnifying glass and a light source. Doctors use the magnifying glass to observe the blood vessels, retina, and other structures in the fundus to check for any abnormalities or lesions. An ophthalmoscope can provide detailed images of the fundus, helping doctors determine if there are any fundus diseases, such as retinal detachment, macular degeneration, or glaucoma.

[0003] When viewing the fundus through the pupil with a handheld ophthalmoscope, you can see the reflection of the light emitted by the ophthalmoscope on the fundus. Generally, this reflection point is located in the center of the fovea, which is normal. If this reflection point is not in the center of the fovea, it is abnormal, also known as eccentric fixation. The greater the deviation, the more serious the abnormality.

[0004] Patients with amblyopia often have a reflex point that is not centered in the fovea, leading to poor vision. For amblyopic patients, the first step is to check for eccentric fixation; if present, eccentric fixation should be corrected to achieve recovery. This process involves the operator observing the patient's pupil through the viewing port of a handheld ophthalmoscope, looking through the pupil to see the retina for analysis, judgment, and procedure.

[0005] In existing technologies, the handheld operation makes the entire examination process very difficult. The operator must be face-to-face with the patient, almost touching them, and see the fundus through the tiny pupil. Any hand movement, or even the patient blinking or moving, will affect the observation results. The operator not only needs to maintain a fixed posture, but also needs to use one finger to adjust the refractive power wheel in real time until a clear image is achieved.

[0006] If the reflective point in the fundus of an amblyopic patient is found to be beside the fovea rather than in the center, it indicates that the patient is eccentrically fixating and needs to be corrected to fixate at the fovea center; this is called eccentric fixation. In practice, this involves selecting a spot on the fundus microscope with a special black circle in the center. While maintaining correct focus, the black circle is used to cover the reflective point and guide it towards the center of the fovea. This operation requires skilled operators to control the distance and angle between the patient's head and the fundus microscope for 30 seconds, repeating this process four times every half hour. This demands a very high level of skill from the operator, and the probability of error is extremely high.

[0007] Therefore, the existing technology is very difficult to operate and requires a lot of experienced operators to perform effective fundus observation and judgment, which greatly raises the threshold for using fundus to correct peripheral fixation in amblyopia. Utility Model Content

[0008] This invention provides a novel peripheral central fixation visualization device for amblyopia. By adjusting the mechanism to precisely control the position of the fundus mirror, it enables stable observation of the fundus condition, thereby solving the technical problem of inconvenient operation of handheld fundus mirrors in the prior art.

[0009] The visual peripheral fixation correction device for amblyopia according to this embodiment includes: a base, an ophthalmoscope, a camera, a display screen, a forehead support bracket, and an adjustment mechanism; the camera and the display screen are electrically connected.

[0010] Both the forehead support bracket and the display screen are mounted on the base; the fundus camera is mounted on the base via the adjustment mechanism and is located between the forehead support bracket and the display screen.

[0011] The ophthalmoscope has a viewing hole, and the camera is fixed to the viewing hole; the adjustment mechanism includes: a front-to-back adjustment device, a vertical adjustment device, a horizontal adjustment device, and a rotating device connected in sequence; the ophthalmoscope is fixed to the rotating device, and the front-to-back adjustment device is mounted on the base.

[0012] As described above, in the visual correction device for peripheral central fixation in amblyopia, the front-back adjustment device includes: a front-back slide rail and a front-back slider; the front-back slide rail is fixed on the base, and the front-back slider is slidably mounted on the front-back slide rail.

[0013] As described above, in the visual correction device for peripheral central fixation in amblyopia, the up-down adjustment device includes 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.

[0014] As described above, the visual correction device for peripheral central fixation in amblyopia includes a left-right adjustment device comprising: 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.

[0015] The visual correction device for peripheral central fixation in amblyopia as described above, wherein the rotating device includes: a fixed base, a pitch angle adjuster, and a horizontal angle adjuster; the fixed base is fixed on the left and right slide rails, the pitch angle adjuster is rotatably mounted on the fixed base, and the horizontal angle adjuster is rotatably mounted on the pitch angle adjuster; the fundus camera is fixed on the horizontal angle adjuster.

[0016] The pitch angle adjuster has a horizontal axis and the horizontal angle adjuster has a vertical axis; the vertical axis and the horizontal axis are perpendicular to each other.

[0017] As described above, in the visual correction device for peripheral central fixation in amblyopia, a clamping bracket is provided on the horizontal angle adjuster; the camera is mounted on the horizontal angle adjuster via the clamping bracket.

[0018] As described above, in the visual correction device for peripheral central fixation in amblyopia, the forehead support is a rectangular frame structure, and the forehead support is provided with a height-adjustable chin support plate.

[0019] As described above, in the visual correction device for peripheral central fixation in amblyopia, the clamping bracket includes a height adjustment bracket and a horizontal adjustment bracket; the horizontal adjustment bracket is mounted on the height adjustment bracket, and the camera is mounted on the horizontal adjustment bracket.

[0020] As described above, in the visual correction device for peripheral central fixation in weak vision, an electrically operated lifting platform is provided below the base, which can adjust the height of the base.

[0021] The visual correction device for peripheral central fixation in amblyopia described above, wherein the camera is a smartphone with integrated camera function; and the camera and the display screen have a communication connection.

[0022] In this embodiment of the invention, the head of the human body is fixed relatively by the forehead support bracket, so that the pupil corresponds to the fundus mirror. At the same time, the position of the fundus mirror is precisely moved by the adjustment mechanism, so that the fundus condition can be accurately and stably captured by the camera and the captured image is displayed on the screen. This avoids the inconvenience of observation caused by holding the fundus mirror, and greatly facilitates the operator to observe and examine. Attached Figure Description

[0023] Figure 1 This is a side view of the visual correction device for weak peripheral central gaze according to an embodiment of the present invention;

[0024] Figure 2 This is a top view of the visual correction device for weak peripheral vision in an embodiment of the present invention.

[0025] Figure 3 This is a structural view of another side of the visual correction device for weak peripheral central gaze according to an embodiment of the present invention;

[0026] Figure 4 This is a side view of a visual correction device for weak peripheral central gaze, according to another embodiment of the present invention. Detailed Implementation

[0027] The visual correction device for peripheral central fixation in amblyopia described in this utility model can be made of the following materials and components, but is not limited to them, such as: bracket, adjustment mechanism, display screen, camera, chin support, fundus mirror, etc.

[0028] like Figure 1 The image shown is a side view of the visual correction device for weak peripheral vision in an embodiment of this utility model; combined with Figure 2 and Figure 3 .

[0029] The visual correction device for peripheral central fixation in amblyopia according to 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 connection between the camera 3 and the display screen 5 can be wired or wireless communication. Generally, the camera 3 is a smartphone with integrated camera function; the camera 3 and the display screen 5 have a communication connection.

[0030] The forehead support 4 and the display screen 5 are both mounted on the base 1; the fundus mirror 2 is mounted on the base 1 through the adjustment mechanism and is located between the forehead support 4 and the display screen 5; the fundus mirror 2 is used to correspond to the pupil of a person and to observe the condition of the fundus.

[0031] The ophthalmoscope 2 has a viewing hole, and the camera 3 is fixed on the viewing hole; the adjustment mechanism includes: a front-to-back adjustment device, a vertical adjustment device, a horizontal adjustment device and a rotating device connected in sequence; the ophthalmoscope 2 is fixed on the rotating device, and the front-to-back adjustment device is installed on the base 1.

[0032] In actual use, the forehead support bracket 4 has a rectangular frame structure, and a height-adjustable chin rest 40 is provided on the forehead support bracket 4. The chin rest 40 can be adjusted in height to accommodate different face heights. In actual use, the patient places their chin on the chin rest 40 on the forehead support bracket 4 and rests their forehead against the rectangular frame structure, thereby keeping the eyes stationary relative to the entire forehead support bracket, which facilitates examination and observation.

[0033] In this embodiment of the invention, the head of the human body is relatively fixed by a forehead support bracket, so that the pupil corresponds to the fundus mirror. At the same time, the position of the fundus mirror is precisely moved by an adjustment mechanism, so that the fundus condition can be accurately and stably captured by a camera and the captured image is displayed on a screen. The whole process is convenient to operate, the image will not shake or be lost, it is easy to observe, the image is clean and reliable, and photos can also be taken and recorded by the camera, thus avoiding the inconvenience of observation caused by holding a fundus mirror, and greatly facilitating the operator to observe and examine.

[0034] The peripheral central fixation visualization device for amblyopia in this embodiment includes an anterior-posterior adjustment device comprising an anterior-posterior slide rail 11 and an anterior-posterior slider 12. The anterior-posterior slide rail 11 is fixed on the base 1, and the anterior-posterior slider 12 is slidably mounted on the anterior-posterior slide rail 11. The anterior-posterior slide rail 11 is used to adjust the distance between the fundus mirror and the pupil.

[0035] Furthermore, the height adjustment device includes a vertical slide rail 13 and a vertical slider 14; the vertical slide rail 13 is fixed to 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 lens, thereby facilitating alignment with the pupil.

[0036] Preferably, the left-right adjustment device includes: a left-right slide rail 15 and a left-right slider 16; the left-right slide rail 15 is fixed on the vertical slider 14, and the left-right slider 16 is slidably mounted on the left-right slide rail 15. The left-right slide rail 15 and the left-right slider 16 are used to adjust the left-right offset of the fundus lens, thereby facilitating alignment with the pupil.

[0037] In actual use, such as Figure 4 As shown, the rotating device 17 includes: a fixed base, a pitch angle adjuster 171, and a horizontal angle adjuster 172; the fixed base is fixed on the left and right slide rails 16, the pitch angle adjuster 171 is rotatably mounted on the fixed base, and the horizontal angle adjuster 172 is rotatably mounted on the pitch angle adjuster 171. The ophthalmoscope 2 is fixed on the horizontal angle adjuster 172.

[0038] Generally, the pitch angle adjuster has a horizontal axis (parallel to the horizontal plane) and the horizontal angle adjuster has a vertical axis (perpendicular to the horizontal plane); the vertical axis and the horizontal axis are perpendicular to each other.

[0039] The pitch and horizontal angle adjusters allow for adjustment of the focusing angle in both the pitch and lateral directions when the fundus mirror is aligned with the pupil, thereby creating a stable light spot on the fundus.

[0040] In this embodiment, for ease of adjustment, the rotating device 17, the front-back adjustment device, the left-right adjustment device, and the up-down adjustment device are all equipped with easy-to-operate knobs. In actual use, it is only necessary to rotate the knob, which is connected to a worm gear. The worm gear and the turbine drive each other, causing the gear on the outside of the turbine to move on the track, ultimately achieving high-precision adjustment in all directions.

[0041] In this embodiment of the visual correction device for weak peripheral vision, the pitch angle adjuster is provided with a clamping bracket 30; the camera 3 is mounted on the rotating device 17 through the clamping bracket 30.

[0042] Typically, the clamping bracket 30 includes a height adjustment bracket 31 and a horizontal adjustment bracket; the horizontal adjustment bracket is mounted on the height adjustment bracket 31, and the camera 3 is mounted on the horizontal adjustment bracket.

[0043] In this embodiment of the visual correction device for peripheral central fixation in amblyopia, an electric lifting platform that can adjust the height of the base 1 is provided below the base 1.

[0044] The specific operating steps of this utility model during use are as follows:

[0045] First, fix the patient's head on the forehead support bracket, which makes it easy to keep the head still. Then, the electric lifting platform can be adjusted to move the forehead support bracket on the base 1 up and down, thereby allowing the patient to maintain a natural sitting position and reduce fatigue.

[0046] Then, the fundus mirror is fixed on a set of adjustable mechanisms that can move up and down, left and right, forward and backward, and rotate, so that it can be accurately and stably aligned with the fundus. The mobile phone with a high-definition camera is also firmly fixed behind the fundus mirror, ensuring that the condition of the fundus can be clearly displayed through the viewing hole of the fundus mirror and projected onto a super large display screen.

[0047] Throughout the process, the operator only needs to sit 50 centimeters in front of the patient, looking at the large screen or mobile phone screen, and using both hands to operate the handwheels or knobs in various directions to find the optimal focus point. Then, pressing the remote control switch will take a photo or record a video. Obviously, this solution can significantly reduce the operator's skill level and benefit professionals ranging from ophthalmologists to optometrists and vision trainers.

[0048] In addition, the amblyopia peripheral central fixation visualization peripheral correction device of this utility model has low manufacturing cost, exquisite layout, compact structure design, stable finished product quality, and convenient operation and maintenance. It is suitable for observation equipment for various fundus conditions.

[0049] The sequence numbers of the above-described embodiments of this utility model are merely for descriptive purposes and do not represent the superiority or inferiority of the embodiments. Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of some modifications and the superposition of necessary general technologies; of course, they can also be implemented by simplifying some important technical features. Based on this understanding, the technical solution of this utility model, in essence or in other words, the part that contributes to the prior art, is: the overall structure and connection method, and the structure described in the various embodiments of this utility model.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A visual correction device for peripheral central fixation in amblyopia, characterized in that, include: The device comprises a base, an ophthalmoscope, a camera, a display screen, a forehead support bracket, and an adjustment mechanism; the camera and the display screen are electrically connected. Both the forehead support bracket and the display screen are mounted on the base; the fundus camera is mounted on the base via the adjustment mechanism and is located between the forehead support bracket and the display screen. The fundus mirror has a viewing hole, and the camera is fixed on the viewing hole; the adjustment mechanism includes: a front-to-back adjustment device, a vertical adjustment device, a left-to-right adjustment device, and a rotation device connected in sequence. The ophthalmoscope is fixed on the rotating device, and the front-to-back adjustment device is mounted on the base.

2. The visual correction device for weak peripheral central fixation according to claim 1, characterized in that, The front and rear adjustment device includes: front and rear slide rails and front and rear sliders; the front and rear slide rails are fixed on the base, and the front and rear sliders are slidably mounted on the front and rear slide rails.

3. The visual correction device for weak peripheral central fixation according to claim 2, characterized in that, The up-down adjustment device includes 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 visual correction device for weak peripheral central fixation according to claim 3, characterized in that, 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 mounted on the left and right slide rails.

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

6. The visual correction device for weak peripheral central fixation according to claim 5, characterized in that, The horizontal angle adjuster is provided with a clamping bracket; the camera is mounted on the horizontal angle adjuster via the clamping bracket.

7. The visual correction device for weak peripheral central fixation according to any one of claims 1-5, characterized in that, The forehead support bracket has a rectangular frame structure and is equipped with a height-adjustable chin support plate.

8. The visual correction device for weak peripheral central fixation according to claim 6, characterized in that, The clamping bracket includes a height adjustment bracket and a horizontal adjustment bracket; the horizontal adjustment bracket is mounted on the height adjustment bracket, and the camera is mounted on the horizontal adjustment bracket.

9. The visual correction device for weak peripheral central fixation according to any one of claims 1-5, characterized in that, An electric lifting platform that can adjust the height of the base is provided below the base.

10. The visual correction device for weak peripheral central fixation according to any one of claims 1-5, characterized in that, The camera is a smartphone with integrated camera function; the camera and the display screen have a communication connection.

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