Ophthalmology medical equipment accessory and ophthalmology medical equipment

Abstract

The invention belongs to the technical field of biological experiment auxiliary instruments, and discloses an ophthalmology medical equipment accessory and ophthalmology medical equipment. The ophthalmic medical device accessory includes a clamp and a support platform. One end or two ends of the clamp is / are provided with a first concave part, and the first concave part is matched with a forehead support bracket of ophthalmology medical equipment. The supporting platform comprises a bearing sub-plate and a connecting sub-plate, the bearing sub-plate is fixedly connected with the connecting sub-plate, and the connecting sub-plate is further detachably and fixedly connected with the clamp, so that the supporting platform is fixed to the forehead support of the ophthalmology medical equipment; the first concave part is matched with the supporting platform, and the fixed connection of the clamp and the supporting platform can limit all or part of relative movement of the supporting platform relative to the forehead support of the ophthalmology medical equipment. The supporting sub-plate is used for supporting or placing an animal to be tested. The ophthalmic medical equipment comprises the ophthalmic medical equipment accessory. According to the ophthalmology medical equipment accessory and the ophthalmology medical equipment, the collection accuracy and the collection efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of biological experiment auxiliary instruments, and particularly to an accessory for ophthalmic medical equipment and an ophthalmic medical equipment. Background Art

[0002] In order to obtain new knowledge in the fields of biology, medicine, etc., or to solve specific problems in the fields of biology, medicine, etc., animals are usually used for scientific experiments and research. When conducting scientific experiments on animals, it is necessary to quickly build an experimental platform, and the experimental platform needs to meet the flexible and diverse requirements of scientific experiments.

[0003] In the existing ophthalmic medical industry, there is no special experimental equipment for ophthalmic testing on animals. Often, human eye testing equipment is used for animal testing or medical research, and manual fixation is required for animal testing, or the stability of the fixation device used is poor, resulting in cumbersome operations. For example, see Figure 1 , a mobile phone holder is clamped on the desktop where the testing equipment is located, a small animal is tied to the front section of the mobile phone holder, and an ophthalmic medical equipment is used for image acquisition. The rigidity of the holder is insufficient, resulting in easy shaking when the equipment moves left and right. Each time a shot is taken, it is necessary to wait for the holder to stabilize before proceeding, which is inconvenient to use and has low acquisition efficiency. Or, see Figure 2 , a double-folded holder is clamped on the desktop where the testing equipment is located, a small animal is tied to the front section of the holder, and the position of the holder needs to be continuously adjusted for photographing the left and right eyes of the animal. The equipment is extremely prone to tremor when moving left and right, and each time a shot is taken, it is also necessary to wait for the holder to stabilize before proceeding, resulting in low acquisition efficiency.

[0004] Therefore, there is an urgent need for an accessory for ophthalmic medical equipment and an ophthalmic medical equipment to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an accessory for ophthalmic medical equipment and an ophthalmic medical equipment, aiming to solve the problem that the holder is prone to shaking after installation in the prior art, resulting in low acquisition efficiency. The support platform of the accessory for ophthalmic medical equipment and the ophthalmic medical equipment is stably installed, not prone to shaking, and improves the acquisition accuracy and acquisition efficiency.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] An accessory for ophthalmic medical equipment, comprising:

[0008] A clamp, one end or both ends of the clamp have a first recess, and the first recess cooperates with the forehead support bracket of the ophthalmic medical equipment;

[0009] The support platform includes a supporting sub-board and a connecting sub-board. The supporting sub-board and the connecting sub-board are fixedly connected, and the connecting sub-board is also detachably and fixedly connected to the fixture, so that the support platform is fixed on the forehead support bracket of the ophthalmic medical device;

[0010] The first recess forms a fit with the support platform, and the fixed connection between the fixture and the support platform can limit all or part of the relative movement of the support platform relative to the forehead support bracket of the ophthalmic medical device;

[0011] The supporting sub-board is used to support or place the animal to be tested for ophthalmic measurement.

[0012] In some possible embodiments, the first recess forms an enclosure for all or part of the forehead support bracket of the ophthalmic medical device with the support platform, so as to limit all or part of the relative movement of the support platform relative to the forehead support bracket of the ophthalmic medical device.

[0013] In some possible embodiments, the supporting sub-board includes two end portions with different widths, so that one end portion can be inserted into the forehead support bracket of the ophthalmic medical device while the other end portion is restricted from entering.

[0014] In some possible embodiments, the end portion of the supporting sub-board close to the inner side can be inserted into the inner side of the forehead support bracket of the ophthalmic medical device. When inserted, the supporting sub-board is arranged on the top of the fixture to form a supporting or limiting relationship.

[0015] In some possible embodiments, the supporting sub-board and the connecting sub-board are fixedly perpendicular to each other.

[0016] In some possible embodiments, the connecting sub-board and the fixture are connected by a fixing member. The connecting sub-board has a connecting groove, and a connecting hole is provided in the connecting groove. The fixing member fixedly connects the fixture and the connecting sub-board through the connecting hole.

[0017] In some possible embodiments, a marking portion or a groove structure is provided on the supporting sub-board. The extending direction of the marking portion or the groove structure forms an angle of 30°±10° with the axial direction of the supporting sub-board, and is used to indicate the placement position of the experimental animal or to place the animal to be tested.

[0018] In some possible embodiments, there is also a placement module. The placement module is detachably fixed or placed on the supporting sub-board. The placement module includes a sliding bottom plate and a V-shaped groove structure installed on the sliding bottom plate. The animal to be tested is placed on the V-shaped groove structure.

[0019] In some possible embodiments, the placement module further includes a handle disposed on the sliding bottom plate, and the handle is used to move the placement module.

[0020] In some possible embodiments, the identification portion is provided as an arrow member, and the arrow member is prepared by laser engraving, or the arrow member is pasted by a sticker, or the arrow member is prepared by screen printing; when the material of the support platform is a metal material, the arrow member is provided as a soft magnetic arrow, and the soft magnetic arrow is magnetically attracted to the supporting sub-board.

[0021] In some possible embodiments, the identification portion is provided as a pointer protrusion, and the pointer protrusion is slidably mounted on the supporting sub-board.

[0022] An ophthalmic medical device includes an ophthalmic medical device forehead support bracket and an ophthalmic medical device accessory as described in any of the above solutions.

[0023] Advantages of the present invention: For the ophthalmic medical device accessory provided by the present invention, the connecting sub-board and the fixture are fixedly connected, the support platform is fixed on the ophthalmic medical device forehead support bracket, the supporting sub-board is used to support or place the animal for ophthalmic measurement, the support platform is stably installed, not easy to shake, and the installation is convenient and easy to adjust, improving the acquisition accuracy and acquisition efficiency.

[0024] The present invention also provides an ophthalmic medical device, including the above-mentioned ophthalmic medical device accessory, and the ophthalmic medical device has high acquisition accuracy and acquisition efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural view of an existing ophthalmic medical device accessory;

[0026] Figure 2 is a schematic structural view of another existing ophthalmic medical device accessory;

[0027] Figure 3 is an exploded view of the ophthalmic medical device accessory provided by an embodiment of the present invention;

[0028] Figure 4 is a three-dimensional view of the fixture provided by an embodiment of the present invention;

[0029] Figure 5 is a three-dimensional view of the support platform provided by an embodiment of the present invention;

[0030] Figure 6 is a three-dimensional view of a partial structure of the ophthalmic medical device forehead support bracket provided by an embodiment of the present invention;

[0031] Figure 7 is an assembly view of the ophthalmic medical device accessory provided by an embodiment of the present invention;

[0032] Figure 8 is an assembly schematic diagram of a support module and a support platform provided by an embodiment of the present invention;

[0033] Figure 9 is a structural schematic diagram of a support module provided by an embodiment of the present invention;

[0034] Figure 10 is a schematic diagram of a connection structure provided by an embodiment of the present invention;

[0035] Figure 11 is a schematic diagram of an identification part provided by an embodiment of the present invention;

[0036] Figure 12 is a schematic diagram of the first step during the assembly of an accessory for an ophthalmic medical device provided by an embodiment of the present invention;

[0037] Figure 13 is a schematic diagram of the second step during the assembly of an accessory for an ophthalmic medical device provided by an embodiment of the present invention;

[0038] Figure 14 is a schematic diagram of the third step during the assembly of an accessory for an ophthalmic medical device provided by an embodiment of the present invention;

[0039] Figure 15 is a schematic diagram of the fourth step during the assembly of an accessory for an ophthalmic medical device provided by an embodiment of the present invention.

[0040] In the figure:

[0041] 100, forehead support bracket of an ophthalmic medical device; 110, support column; 120, forehead support part; 130, chin bracket; 200, fixture; 210, first recess; 300, support platform; 310, supporting sub-board; 320, connecting sub-board; 321, connecting groove; 400, fixing member; 500, placement module; 510, sliding bottom plate; 520, V-groove structure; 530, handle; 600, identification part; 700, connection structure. Detailed implementation manners

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention are shown in the accompanying drawings, rather than all the structures.

[0043] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0045] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0046] Such as Figures 3 to 12As shown in the figure, this embodiment provides an accessory for an ophthalmic medical device, including a fixture 200 and a support platform 300. One end or both ends of the fixture 200 have a first recess 210, and the first recess 210 cooperates with the forehead support bracket 100 of the ophthalmic medical device. For example, one end or both ends of the fixture 200 have a first recess 210 that protrudes relative to the middle part, or one end or both ends of the fixture 200 have a first recess 210 that is recessed relative to the middle part, so as to meet the cooperation with the forehead support bracket 100 of the ophthalmic medical device. The support platform 300 includes a supporting sub-board 310 and a connecting sub-board 320. The supporting sub-board 310 and the connecting sub-board 320 are fixedly connected, and the connecting sub-board 320 is also detachably and fixedly connected to the fixture 200, so that the support platform 300 is fixed on the forehead support bracket 100 of the ophthalmic medical device; the first recess 210 forms a cooperation with the support platform 300, such as a partial wrapping cooperation or a supporting and limiting cooperation. The fixed connection between the fixture 200 and the support platform 300 can limit all or part of the relative movement of the support platform 300 relative to the forehead support bracket 100 of the ophthalmic medical device. Among them, the relative movement may include upward relative movement, downward relative movement or relative rotational movement. For example, after the fixture 200 and the support platform 300 are fixedly connected, the support platform 300 is fixed at a specific position of the forehead support bracket 100 of the ophthalmic medical device, and the support platform 300 cannot move up and down. Or, as after the fixture 200 and the support platform 300 are fixedly connected, under the action of gravity, the support platform 300 is fastened to the forehead support bracket 100 of the ophthalmic medical device, or by applying a certain downward pressure to the support platform 300, it is clamped or fastened to the forehead support bracket 100 of the ophthalmic medical device, that is, the support platform 300 can move downward from top to bottom under the action of an external force. The supporting sub-board 310 is used to support or place the animal to be tested for ophthalmic measurement. Exemplarily, the forehead support bracket 100 of the ophthalmic medical device may include two symmetrically arranged support columns 110, a forehead support part 120 and a chin bracket 130. The forehead support part 120 is installed at the top of the two support columns 110, and the chin bracket 130 is installed on the support frame of the forehead support bracket 100 of the ophthalmic medical device and is located in the middle of the two support columns 110.

[0047] For the above-mentioned accessory of the ophthalmic medical device, the connecting sub-board 320 and the fixture 200 are fixedly connected, the support platform 300 is fixed on the forehead support bracket 100 of the ophthalmic medical device, the supporting sub-board 310 is used to support or place the animal for ophthalmic measurement, the support platform 300 is stably installed, not easy to shake, and the installation is convenient and easy to adjust, improving the acquisition accuracy and acquisition efficiency.

[0048] In this embodiment, the first recess 210 and the support platform 300 form an enclosure around all or part of the forehead support bracket 100 of the ophthalmic medical device, so as to limit all or part of the relative movement of the support platform 300 relative to the forehead support bracket 100 of the ophthalmic medical device. In some possible implementation manners, the first recess 210 and the support platform 300 may form a hoop to enclose the forehead support bracket 100 of the ophthalmic medical device. By fixing the fixture 200 to the support platform 300, the fixation of the support platform 300 relative to the forehead support bracket 100 of the ophthalmic medical device is realized; alternatively, the first recess 210 and the corresponding structures of the support sub-board 310 and / or the connection sub-board 320 of the support platform 300 form a support, so that under the action of gravity, the support platform 300 forms a fixation with the forehead support bracket 100 of the ophthalmic medical device; or, the first recess 210 and the support sub-board 310 and / or the connection sub-board 320 of the support platform 300 have protruding limiting parts, and the limiting parts cooperate with the forehead support bracket 100 of the ophthalmic medical device to limit the up and down displacement of the support platform 300.

[0049] Preferably, all or part of the first recess 210 and the support sub-board 310 and / or the connection sub-board 320 of the support platform 300 that cooperate with it to be fixed may be made of an elastic material, and under the action of the gravity of the support platform 300, a better fixing effect is formed by extrusion.

[0050] Optionally, the support sub-board 310 includes two end parts with different widths, so that one end part can be inserted into the forehead support bracket 100 of the ophthalmic medical device, while the other end part is restricted from entering. Further, the end part of the support sub-board 310 close to the inner side can be inserted into the inner side of the forehead support bracket 100 of the ophthalmic medical device. When inserted, the support sub-board 310 is arranged on the top of the fixture 200 to form a support or limiting relationship, thereby improving the use reliability of the support platform 300.

[0051] In this embodiment, the support sub-board 310 and the connection sub-board 320 are perpendicularly fixed to each other. Such a setting makes the connection sub-board 320 and the fixture 200 parallel to each other, which is convenient for the detachable fixed connection between the connection sub-board 320 and the fixture 200.

[0052] Further, the connection sub-board 320 and the fixture 200 are connected by a fixing member 400. The connection sub-board 320 has a connection groove 321, and the connection groove 321 is provided with a connection hole. The fixing member 400 fixedly connects the fixture 200 and the connection sub-board 320 through the connection hole. After the fixing member 400 is installed on the connection sub-board 320, the end part of the fixing member 400 is received in the connection groove 321, so as to prevent external components from colliding with the fixing member 400 and damaging its installation stability.

[0053] Preferably, an identification portion 600 or a groove structure is provided on the supporting sub-board 310. The extending direction of the identification portion 600 or the groove structure forms an angle of 30° ± 10° with the axial direction of the supporting sub-board 310, which is used to indicate the placement position of the experimental animal or place the animal to be tested, facilitating the quick determination of the experimental position of the animal to be tested or the quick placement of the animal to be tested. In some possible implementation manners, the groove structure on the supporting sub-board 310 is used to place small animals to be tested, such as mice. The groove structure has an inclined placement surface, and the placement surface is inclined at 30° ± 10° based on the supporting sub-board 310, so that the animal to be tested is placed obliquely along the placement surface, and the eyes of the animal to be tested are aligned with the test end of the experimental equipment. Further, the groove structure also has another arc surface, and the arc surface is opposite to the placement surface, which is used to support the mouse and make it stably placed in the groove structure. Further, the arc surface can be provided with a stepped structure, and the placement position of the animal to be tested can be finely adjusted through the stepped structure.

[0054] Optionally, the ophthalmic medical device accessory further has a placement module 500. The placement module 500 is detachably fixed or placed on the supporting sub-board 310. The placement module 500 includes a sliding bottom plate 510 and a V-shaped groove structure 520 installed on the sliding bottom plate 510. The animal to be tested is placed on the V-shaped groove structure 520. For example, the animal to be tested can be a zebrafish.

[0055] Further, the placement module 500 further includes a handle 530 provided on the sliding bottom plate 510. The handle 530 is used to move the placement module 500 to improve the convenience during operation.

[0056] Optionally, the identification portion 600 is set as an arrow piece. The arrow piece is prepared by laser engraving, or the arrow piece is pasted by a sticker, or the arrow piece is prepared by screen printing; when the material of the support platform 300 is a metal material, the arrow piece is set as a soft magnetic arrow, and the soft magnetic arrow is magnetically attracted to the supporting sub-board 310. Or, the identification portion 600 is set as a pointer protrusion, and the pointer protrusion is slidably installed on the supporting sub-board 310. See Figure 11 Two identification portions 600 are symmetrically arranged along the central axis of the supporting sub-board 310 to be respectively used for image acquisition of the left eye and the right eye of the animal to be tested.

[0057] The ophthalmic medical device accessory further has a connection structure 700. The connection sub-board 320 abuts against the bottom of the ophthalmic medical device forehead support 100 or the chin bracket 130 of the ophthalmic medical device forehead support 100 through the connection structure 700. The length of the connection structure 700 is adjustable, and the connection sub-board 320 and the supporting sub-board 310 are fixed by adjusting the connection structure 700. This setting can further improve the stability of the support platform 300 against the ophthalmic medical device forehead support 100.

[0058] Further, the connecting structure 700 includes a threaded member and an elastic member sleeved on the threaded member. One end of the threaded member abuts against the bottom of the forehead support bracket 100 or the chin bracket 130 of the ophthalmic medical device, and the other end of the threaded member is screwed to the connecting sub-board 320. The threaded member can form a support for the connecting sub-board 320, and at the same time, the elastic member can buffer the acting force between the connecting sub-board 320 and the threaded member.

[0059] The present invention also provides an ophthalmic medical device, including the forehead support bracket 100 of the ophthalmic medical device and the above-mentioned ophthalmic medical device accessory, and this ophthalmic medical device has high acquisition accuracy and acquisition efficiency.

[0060] The main steps of using the ophthalmic medical device accessory provided in this embodiment for animal experiments include:

[0061] S1. Installation of the ophthalmic medical device accessory;

[0062] Refer to Figure 12 , first push the fixture 200 against one side of the forehead support bracket 100 of the ophthalmic medical device so that the first recess 210 cooperates with the forehead support bracket 100 of the ophthalmic medical device; refer to Figure 13 , place the support platform 300 against the other side of the forehead support bracket 100 of the ophthalmic medical device; refer to Figure 14 , insert the fixing member 400 into the connection hole; refer to Figure 15 , screw the fixing member 400 to fixedly connect the fixture 200 and the connecting sub-board 320.

[0063] S2. Preparation of animal experiment materials;

[0064] The experimental materials include lash scissors, sterile gloves, lacrimal duct irrigation needles, anesthesia syringes, alcohol, disinfection materials, animal anesthetics, carbomer gel, etc.; for animal experiments or medical treatment in winter, a constant temperature warming blanket also needs to be prepared to prevent animals from losing body temperature;

[0065] S3. Preparation for mydriasis in animal experiments;

[0066] S4. Anesthesia of animal experiments and important corneal protection;

[0067] S5. Preparation for the placement of animal experiments;

[0068] Taking a mouse as an example, after placing the mouse obliquely forward at 30 degrees and then lying on its side at 30°, the mouse's eyeball is thus aligned with the center of the shooting lens. Alternatively, by placing the mouse in the groove structure on the support platform 300, the mouse is thus placed obliquely on the support platform 300 to align with the center of the shooting lens. It should be noted that during the entire experiment, the cornea of the animal to be tested should always be kept moist.

[0069] S6. Tests or medical treatments on animals (such as taking pictures of the eye axis, etc.).

[0070] Turn on the ophthalmic medical device, for example, an ophthalmic measuring instrument, an OCT device, etc., open the measurement interface, determine the scanning range and measurement parameters, and start the measurement.

[0071] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An ophthalmic medical device accessory, characterized in that, Comprising: A fixture (200), one end or both ends of the fixture (200) having a first recess (210), the first recess (210) cooperating with the forehead support bracket (100) of the ophthalmic medical device; A support platform (300), including a supporting sub-board (310) and a connecting sub-board (320), the supporting sub-board (310) and the connecting sub-board (320) being fixedly connected, the connecting sub-board (320) also being detachably and fixedly connected to the fixture (200), such that the support platform (300) is fixed to the forehead support bracket (100) of the ophthalmic medical device; The first recess (210) forms a fit with the support platform (300), and the fixed connection between the fixture (200) and the support platform (300) can limit all or part of the relative movement of the support platform (300) relative to the forehead support bracket (100) of the ophthalmic medical device; The supporting sub-board (310) is used to support or place the animal to be tested.

2. The ophthalmic medical device accessory according to claim 1, wherein, The first recess (210) and the support platform (300) form an enclosure around all or part of the forehead support bracket (100) of the ophthalmic medical device to limit all or part of the relative movement of the support platform (300) relative to the forehead support bracket (100) of the ophthalmic medical device.

3. The ophthalmic medical device accessory according to claim 1, characterized in that The supporting sub-board (310) includes two ends with different widths, such that one end can be inserted into the forehead support bracket (100) of the ophthalmic medical device while restricting the other end from entering.

4. The ophthalmic medical device accessory according to claim 3, wherein The end of the supporting sub-board (310) close to the inner side can be inserted into the inner side of the forehead support bracket (100) of the ophthalmic medical device. When inserted, the supporting sub-board (310) is disposed on top of the fixture (200) to form a supporting or limiting relationship.

5. The ophthalmic medical device accessory according to claim 1, wherein The supporting sub-board (310) and the connecting sub-board (320) are fixedly perpendicular to each other.

6. The ophthalmic medical device accessory according to claim 1, characterized in that, The connecting sub-board (320) and the fixture (200) are connected by a fixing member (400). The connecting sub-board (320) has a connecting groove (321), and a connecting hole is provided in the connecting groove (321). The fixing member (400) fixedly connects the fixture (200) and the connecting sub-board (320) through the connecting hole.

7. The ophthalmic medical device accessory according to claim 1, wherein An identification portion (600) or a groove structure is provided on the supporting sub-board (310), and the extending direction of the identification portion (600) or the groove structure forms an angle of 30° ± 10° with the axial direction of the supporting sub-board (310), for indicating the placement position of the experimental animal or placing the animal to be tested.

8. The ophthalmic medical device accessory according to claim 1, wherein, There is also a placement module (500), the placement module (500) being detachably fixed or placed on the supporting sub-board (310). The placement module (500) includes a sliding bottom plate (510) and a V-groove structure (520) installed on the sliding bottom plate (510), and the animal to be tested is placed on the V-groove structure (520).

9. The ophthalmic medical device accessory according to claim 8, wherein The placement module (500) further includes a handle (530) provided on the sliding bottom plate (510), and the handle (530) is used to move the placement module (500).

10. The ophthalmic medical device accessory according to claim 7, characterized in that, The identification part (600) is arranged as an arrow piece, and the arrow piece is prepared by laser engraving, or the arrow piece is pasted by a sticker, or the arrow piece is prepared by screen printing; when the material of the support platform (300) is a metal material, the arrow piece is arranged as a soft magnetic arrow, and the soft magnetic arrow is magnetically attracted to the supporting sub-board (310).

11. The ophthalmic medical device accessory according to claim 7, characterized in that, The identification part (600) is arranged as a pointer protrusion, and the pointer protrusion is slidably installed on the supporting sub-board (310).

12. An ophthalmic medical device, characterized in that, It includes an ophthalmic medical device forehead support bracket (100) and an ophthalmic medical device accessory according to any one of claims 1-11.

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