MEM vision card suite of skiascope

Abstract

The utility model relates to the technical field of vision detection, in particular to a skiascope MEM vision card suite. According to the technical scheme, the skiascope MEM vision card suite comprises an MEM vision card, the MEM vision card is installed on a base, a containing groove is formed in the base, a strong magnet is embedded in the containing groove, a rubber sleeve is fixedly pasted in the base, and a pressing plate is installed on the base. According to the utility model, the MEM vision card can be quickly and easily fixed between the pressing plate and the base by utilizing the adsorption force of the magnet, so that an inspector can conveniently observe the adjustment response of the eye to be inspected when watching the sighting mark.

Description

Technical Field

[0001] The utility model relates to the technical field of vision detection, in particular to a retinoscope MEM vision card kit. Background Art

[0002] MEM dynamic retinoscopy is an objective examination method used to assess the accuracy of an individual's accommodation response. During this process, a MEM vision card is placed on a retinoscope as a close-up fixation target, allowing the subject to focus on it in a normal reading state. A search revealed that Chinese patent publication number CN210612104U discloses a vision test card. While this device allows for multi-angle adjustment of the vision test card during use, facilitating vision testing and preventing individuals from deliberately memorizing the orientation of icons, it cannot be mounted on a retinoscope during use, making it difficult for the examiner to observe the subject's accommodation response when focusing on the target. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a retinoscope MEM vision card kit, which solves the problems raised in the background art.

[0004] The utility model solves the above-mentioned technical problems as follows:

[0005] A retinoscope MEM vision card kit comprises a MEM vision card, wherein the MEM vision card is mounted on a base, a receiving slot is provided in the base, a strong magnet is embedded in the receiving slot, a rubber sleeve is adhered and fixed to the inside of the base, and a pressing plate is mounted on the base.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, a positioning hole is formed through the MEM vision card.

[0008] The beneficial effects of adopting the above further scheme are:

[0009] The positioning holes allow the MEM Vision Card to be precisely installed in the designated position on the retinoscope, avoiding inspection errors caused by positional offset. By matching the positioning holes with corresponding components on the base or other fixtures, the position of the Vision Card can be ensured to remain consistent each time it is installed, thus ensuring the comparability and consistency of inspection results.

[0010] Furthermore, a positioning block is provided at one end of the rubber sleeve, the shape and size of the positioning block are adapted to the positioning hole, and the MEM vision card is installed on the rubber sleeve through the positioning hole and the positioning block cooperating with each other to limit the position.

[0011] The beneficial effects of adopting the above further scheme are:

[0012] The shape and size of the positioning blocks precisely match the positioning holes on the MEM vision card. This design ensures the card's precise installation on the rubber sleeve, avoiding inspection errors caused by misalignment or loose installation. The interaction between the positioning holes and the positioning blocks securely holds the card in place on the rubber sleeve. This secure installation prevents the card from loosening or falling due to vibration or external forces during the inspection and also minimizes the impact of positional fluctuations on inspection results. The positioning holes and positioning blocks ensure the card returns to the same position and angle each time it is installed. This helps ensure consistent and comparable inspection results, facilitating accurate assessment and diagnosis.

[0013] Furthermore, a pressing sleeve is provided on the pressing plate, the diameter of the pressing sleeve is smaller than the inner diameter of the rubber sleeve, and the pressing plate is installed at one end of the rubber sleeve through the pressing sleeve.

[0014] The beneficial effects of adopting the above further scheme are:

[0015] Because the diameter of the pressure sleeve is smaller than the inner diameter of the rubber sleeve, the pressure plate can be easily inserted through the sleeve into the rubber sleeve, enabling quick installation. Although the diameter of the pressure sleeve is smaller than the inner diameter of the rubber sleeve, once the pressure plate is inserted and properly positioned, the elasticity and friction of the rubber sleeve securely secure it to the rubber sleeve. This design ensures the stability of the vision card during inspection and prevents inspection errors caused by loosening or falling off. This design simplifies installation and improves work efficiency. Similarly, the pressure plate can be easily removed from the rubber sleeve for quick disassembly.

[0016] Furthermore, the base is mounted on the lens barrel of the retinoscope through a rubber sleeve, and the base is located between the MEM vision card and the lens barrel, and the pressure plate is located at one end of the base away from the lens barrel.

[0017] The beneficial effects of adopting the above further scheme are:

[0018] The base is attached to the retinoscope barrel via a rubber sleeve. This design allows the base to be securely fixed to the barrel, eliminating the safety risks caused by the base moving or falling off during the inspection process. The elasticity of the rubber sleeve allows the base to be adapted to different sizes and models of retinoscope barrels, increasing the versatility and flexibility of the kit.

[0019] Furthermore, the MEM vision card is fixed by being attracted, clamped and fixed by the strong magnets in the pressure plate and the base.

[0020] The beneficial effects of adopting the above further scheme are:

[0021] Leveraging the attraction of magnets, the MEM vision card can be quickly and easily secured between the pressure plate and base, eliminating the need for traditional fastening methods like screws and bolts, greatly simplifying installation. To replace or adjust the vision card, the doctor simply removes or repositions the card from the magnet, enabling quick removal and reinstallation, improving examination efficiency.

[0022] The utility model provides a retinoscope MEM vision card kit, which has the following beneficial effects:

[0023] The MEM vision card is held in place by a strong magnet within the pressure plate and base. This design ensures the card's stability during the examination and prevents errors caused by the card moving or falling off. Leveraging the magnet's attraction and the elasticity of the rubber sleeve, the card can be quickly and easily installed on the retinoscope. It also facilitates removal and replacement, improving examination efficiency.

[0024] The positioning holes on the MEM Vision Card work in conjunction with the positioning blocks on the rubber base to precisely position the card. This design helps ensure the card is positioned accurately during the examination, thereby improving the accuracy of the test results.

[0025] Since the base is mounted on the lens barrel of the retinoscope through a rubber sleeve, this design enables the kit to be applicable to retinoscopes of different models and specifications, thereby improving the versatility and flexibility of the kit.

[0026] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following is a detailed description of the preferred embodiments of the present invention with the accompanying drawings. The specific implementation methods of the present invention are given in detail in the following embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0028] In the attached figure:

[0029] Figure 1 This is a schematic diagram of the axial side appearance of the utility model;

[0030] Figure 2 This is a schematic diagram of the rear axial side appearance of the present invention;

[0031] Figure 3 This is a schematic diagram of the axial side cross-sectional structure of the utility model;

[0032] Figure 4 This is a schematic diagram of the axial side appearance of the rubber sleeve of the present invention;

[0033] Figure 5 This is a schematic diagram of the axial side appearance of the MEM vision card of the present invention.

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0035] 1. MEM vision card; 2. Pressing plate; 3. Base; 4. Rubber sleeve; 5. Receiving slot; 6. Positioning block; 7. Strong magnet; 8. Pressing sleeve; 9. Positioning hole. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] See also Figures 1 to 5 As shown, the embodiment provided by the utility model:

[0038] Example 1

[0039] A retinoscope MEM vision card kit includes a MEM vision card 1. A positioning hole 9 is formed through the MEM vision card 1. The design of the positioning hole 9 enables the MEM vision card to be accurately installed at a specified position on the retinoscope, avoiding inspection errors caused by positional offset. By cooperating with the positioning hole 9 and corresponding components on the base 3 or other fixing devices, it can be ensured that the position of the vision card remains consistent each time it is installed, thereby ensuring the comparability and consistency of the inspection results. The MEM vision card 1 is installed on the base 3. The MEM vision card 1 is fixed by mutual adsorption and clamping by the strong magnet 7 in the pressure plate 2 and the base 3. Using the adsorption force of the magnet, the MEM vision card can be quickly and easily fixed between the pressure plate 2 and the base 3, without the use of traditional fixing methods such as screws and bolts, greatly simplifying the installation steps. When the vision card needs to be replaced or adjusted, the doctor only needs to gently remove or reposition the vision card from the magnet to achieve quick disassembly and reinstallation, thereby improving the inspection efficiency. A receiving groove 5 is provided in the base 3, and a strong magnet 7 is embedded in the receiving groove 5. A rubber sleeve 4 is glued and fixed to the inside of the base 3. The base 3 is mounted on the lens barrel of the retinoscope through the rubber sleeve 4, and the base 3 is located between the MEM vision card 1 and the lens barrel. The pressure plate 2 is located at the end of the base 3 away from the lens barrel, and the base 3 is mounted on the lens barrel of the retinoscope through the rubber sleeve 4. This design enables the base 3 to be firmly fixed on the lens barrel, avoiding safety hazards caused by the movement or falling off of the base 3 during the inspection process. The elasticity of the rubber sleeve 4 enables the base 3 to be adapted to retinoscope barrels of different specifications and models, thereby improving the versatility and flexibility of the kit. A positioning block 6 is provided at one end of the rubber sleeve 4. The shape and size of the positioning block 6 match the positioning hole 9. The MEM vision card 1 is installed on the rubber sleeve 4 by cooperating with the positioning block 6 through the positioning hole 9. The shape and size of the positioning block 6 precisely match the positioning hole 9 on the MEM vision card. This design ensures that the vision card can be accurately installed on the rubber sleeve 4, avoiding inspection errors caused by position offset or loose installation. Through the mutual cooperation between the positioning hole 9 and the positioning block 6, the vision card is firmly limited on the rubber sleeve 4. This stable installation method can not only prevent the vision card from loosening or falling off due to vibration or external force during the inspection process, but also reduce the impact of position changes on the inspection results. Each time it is installed, the vision card can be restored to the same position and angle through the cooperation between the positioning hole 9 and the positioning block 6. This helps to ensure the consistency and comparability of the examination results and facilitates doctors to make accurate assessments and diagnoses. A pressing plate 2 is installed on the base 3, and a pressing sleeve 8 is provided on the pressing plate 2. The diameter of the pressing sleeve 8 is smaller than the inner diameter of the rubber sleeve 4. The pressing plate 2 is installed at one end of the rubber sleeve 4 through the pressing sleeve 8. Since the diameter of the pressing sleeve 8 is smaller than the inner diameter of the rubber sleeve 4, the pressing plate 2 can be easily inserted into the rubber sleeve 4 through the pressing sleeve 8, thereby achieving quick installation.Although the diameter of the pressure sleeve 8 is smaller than the inner diameter of the rubber sleeve 4, once the pressure plate 2 is inserted into the rubber sleeve 4 and in place, the elasticity and friction of the rubber sleeve 4 firmly secure the pressure plate 2 there. This design ensures the stability of the sight card during inspection and prevents errors caused by loosening or falling off. This design simplifies installation and improves work efficiency. Similarly, the pressure plate 2 can be easily removed from the rubber sleeve 4, enabling quick disassembly.

[0040] Working principle:

[0041] The MEM vision card in the kit is held in place by a strong magnet 7 within the base 3 and the pressure plate 2. This magnetic attraction provides both stability and ease of adjustment, ensuring the card's stability during the exam. Positioning holes 9 cut through the card interact with positioning blocks 6 on the rubber sleeve 4 of the base 3 to precisely position the card. This design prevents the card from moving or rotating during the exam, ensuring accurate testing.

[0042] The base 3 is mounted on the retinoscope barrel via a rubber sleeve 4. The elasticity of the rubber sleeve 4 allows the kit to adapt to retinoscope barrels of different specifications and models, improving the versatility and flexibility of the kit. The doctor can simply fix the vision card to the base 3 and install the base 3 on the retinoscope barrel via the rubber sleeve 4. Similarly, the disassembly process is also very fast, improving the efficiency of the examination.

[0043] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0044] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A retinoscope MEM vision card kit, comprising a MEM vision card (1), characterized in that: The MEM vision card (1) is mounted on a base (3). A receiving groove (5) is provided in the base (3). A strong magnet (7) is embedded in the receiving groove (5). A rubber sleeve (4) is adhered and fixed to the inside of the base (3). A pressing plate (2) is mounted on the base (3).

2. A retinoscope MEM vision card kit according to claim 1, characterized in that: A positioning hole (9) is provided through the MEM vision card (1).

3. A retinoscope MEM vision card kit according to claim 1, characterized in that: A positioning block (6) is provided at one end of the rubber sleeve (4), and the shape and size of the positioning block (6) are adapted to the positioning hole (9). The MEM vision card (1) is mounted on the rubber sleeve (4) through the positioning hole (9) and the positioning block (6) in a limited manner.

4. A retinoscope MEM vision card kit according to claim 1, characterized in that: The pressing plate (2) is provided with a pressing sleeve (8), the diameter of the pressing sleeve (8) is smaller than the inner diameter of the rubber sleeve (4), and the pressing plate (2) is plugged and installed on one end of the rubber sleeve (4) through the pressing sleeve (8).

5. A retinoscope MEM vision card kit according to claim 1, characterized in that: The base (3) is sleeved and mounted on the lens barrel of the retinoscope via a rubber sleeve (4), and the base (3) is located between the MEM vision card (1) and the lens barrel, and the pressure plate (2) is located at one end of the base (3) facing away from the lens barrel.

6. A retinoscope MEM vision card kit according to claim 1, characterized in that: The MEM vision card (1) is fixed by being mutually attracted, clamped and fixed by a strong magnet (7) in the pressing plate (2) and the base (3).

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