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A visual test device for ophthalmology patients

A testing device and patient technology, applied in the field of vision testing, can solve problems such as inaccurate results of vision testing, and achieve the effect of improving accuracy

Inactive Publication Date: 2021-03-16
广州维帝医疗技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In vision testing, vision testing is the most common test method, and usually when testing vision, the vision chart is used for testing. Since the positions of the different symbols of the vision chart are fixed, testers can sometimes pass Record the information of the entire vision chart in the form of reciting the vision chart, so that the final vision test results are not accurate enough, so it needs to be improved

Method used

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  • A visual test device for ophthalmology patients
  • A visual test device for ophthalmology patients
  • A visual test device for ophthalmology patients

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see Figure 1-7 , a kind of ophthalmic patient vision testing device, comprises base 2, and the upper part of base 2 is provided with support column 9, and the upper end of support column 9 is provided with display board 10, and the middle part of the upper surface of base 2 is provided with first stud 3, the first The top of the stud 3 is threaded to the bottom of the threaded sleeve 5, the top of the threaded sleeve 5 is threaded to the bottom of the second stud 6, the top of the second stud 6 is rotatably connected to the swivel seat 7, and the top of the swivel seat 7 is connected to the support column 9 The lower end of the lower end, the left and right sides of the rotating seat 7 and the display board 10 are provided with reinforcing ribs 8, and the front four corners of the display board 10 are provided with raised blocks 12, and the raised blocks 12 are L-shaped. A relief hole 11 is provided between the blocks 12 , that is, a relief hole is provided on the disp...

Embodiment 2

[0033] see figure 1 , the other content of this embodiment is the same as that of Embodiment 1, except that casters 1 are provided at the four corners of the lower surface of the base 2 . In order to improve the convenience of moving the whole device, a caster 1 is set at the bottom of the device, so that the whole device can be moved through the caster 1, and the caster 1 has a self-locking function. When the device moves to the target position, it can be locked by locking the caster 1 The whole device is fixed by means of the method, so as to realize the fixing effect of the whole device.

[0034] In the implementation process of the present invention, when the device is in use, the device is first moved to a flat fixed position, the lock nut 4 is unscrewed, and the threaded sleeve 5 is rotated at this time, due to the first stud 3 and the first The stud 3 is provided with threads with opposite directions, so that during the rotation of the threaded sleeve 5, the first stud...

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PUM

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Abstract

The invention relates to the technical field of visual testing, and discloses a visual testing device for ophthalmology patients, which includes a base, a support column is arranged on the upper part of the base, a display board is provided at the upper end of the support column, and four front corners of the display board are provided with Protruding blocks, relief holes are provided between the protruding blocks, support rods are provided on the rear side of the display board, the rear ends of the support rods are fixedly connected to the four corners of the fixed bracket, and the middle part of the fixed bracket is provided with The first fixed plate, the middle part of the first fixed plate rotates and connects the rear side of the rotating shaft, the front side of the rotating shaft is provided with the second fixed plate, the lower end of the second fixed plate is provided with the top wheel, and the outer side of the fixed bracket is slidably connected with the sliding rod . The present invention is applicable to a vision test device for ophthalmology patients. During the working process of the whole device, different plugs can be selected to move backward, so that the annular gap can be changed freely, and the user cannot record the rules, so as to test the actual vision. Improved the accuracy of the entire device.

Description

technical field [0001] The invention relates to the technical field of visual testing, in particular to a visual testing device for ophthalmic patients. Background technique [0002] Vision is the ability of the retina to distinguish images. The quality of vision is judged by the ability of the retina to distinguish images. However, when the refractive media of the eye (such as cornea, lens, vitreous body, etc.) Eyes with a well-functioning retina can still lose vision. The opacity of the refractive medium of the eye can be treated with surgery, while the refractive errors need to be corrected with lenses. [0003] In vision testing, vision testing is the most common means of testing, and usually when testing vision, an eye chart is used for testing. Since the positions of different symbols on the vision chart are fixed, testers can sometimes pass The information of the entire vision chart is recorded in the form of reciting the vision chart, so that the final vision test...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B3/032
CPCA61B3/0041A61B3/0075A61B3/032
Inventor 岐志天
Owner 广州维帝医疗技术有限公司