Adjustable fundus injection experiment table

Abstract

The invention discloses an adjustable fundus injection experiment table which comprises an experiment table body, a headrest is arranged on the experiment table body, a first driving mechanism is arranged between the headrest and the experiment table body, and the headrest is driven by the first driving mechanism to horizontally move in the length direction of the experiment table body. A first air bag is arranged on the headrest, and when the first air bag is inflated or deflated, the inclination angle of the headrest can be changed along with the first air bag; the headrest is further provided with a head fixing mechanism used for automatically clamping and fixing the head of the mouse. According to the invention, the experiment table body is provided with the first driving mechanism for controlling the horizontal position of the headrest, and is also provided with the first air bag and the third air bag which can change the inclination angle of the headrest, and the movement of the parts can be controlled through the external pedal control panel. The position of the head of the mouse can still be automatically adjusted under the condition that both hands of an experimenter are occupied, the operation is convenient, and the injection accuracy can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of experimental equipment, and in particular to an adjustable fundus injection experimental table. Background Art

[0002] In biomedical research, especially in experiments involving mouse eye injections, the design and function of the laboratory bench are crucial to the success of the experiment. The laboratory bench in the prior art usually requires manual adjustment of the position and tilt angle of the mouse head to ensure the accuracy of the injection. However, when performing the injection, especially when operating under a microscope, the experimenter needs to hold the experimental equipment with both hands, which makes it difficult and inconvenient to adjust the position of the mouse head if there is an angle deviation during the injection process. Summary of the invention

[0003] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide an adjustable fundus injection experimental table, which can automatically adjust the position and angle of the mouse head through the equipped foot control panel, thereby facilitating the operation of the experimenter and improving the accuracy of the injection.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: providing an adjustable fundus injection experimental platform, including an experimental platform body, a headrest for raising the head of a mouse is arranged on the experimental platform body, a first driving mechanism is arranged between the headrest and the experimental platform body, the headrest moves horizontally along the length direction of the experimental platform body under the drive of the first driving mechanism, a first airbag is arranged on the headrest, and the inclination angle of the headrest can change accordingly when the first airbag is inflated or deflated; the headrest is also provided with a head fixing mechanism for automatically clamping and fixing the head of the mouse.

[0005] Furthermore, the headrest includes a lower section and an upper section, the lower section is horizontally arranged at the upper end of the test bench body, the upper section is arranged at the upper end of the lower section and the front side of the upper section is rotatably connected to the lower section, the first airbag is arranged between the lower section and the upper section, and when the first airbag is inflated, the upper section rotates with the connection point between itself and the lower section as the center, thereby changing the inclination angle of the upper section.

[0006] Furthermore, the first driving mechanism includes a motor, a screw and a slider, a first inner groove is opened inside the laboratory bench body at a position corresponding to the headrest, the screw is rotatably arranged in the first inner groove along the length direction of the laboratory bench body, a second inner groove is also opened inside the laboratory bench body at a position corresponding to one end of the first inner groove, the motor is installed in the second inner groove and the output shaft of the motor extends into the first inner groove and is drivingly connected to the screw, the slider matches the first inner groove and is screwed onto the screw, and the slider is connected to the headrest through a first connecting rod.

[0007] Furthermore, the head fixing mechanism includes two clamping blocks and a second driving mechanism arranged between the two clamping blocks, the two clamping blocks are arranged on two lateral sides above the headrest, and the two clamping blocks move toward or away from each other under the drive of the second driving mechanism to clamp or relax the head of the mouse.

[0008] Furthermore, the second driving mechanism includes a second airbag, two second connecting rods, two third connecting rods and two air passages, the second airbag is arranged on the upper part of the headrest, the two second connecting rods are respectively arranged on the lateral sides of the headrest, and the two second connecting rods are each provided with a cavity, the two third connecting rods are respectively horizontally sealed and slidably connected in the two cavities, the two clamping blocks are respectively arranged at one end of the two third connecting rods extending out of the cavity, the two air passages respectively connect the two cavities with the second airbag, the gas in the second airbag can be pressed into the cavity through the air passage, thereby pushing the third connecting rod out, and causing the two clamping blocks to move toward each other to clamp the mouse head.

[0009] Furthermore, a fourth link is horizontally slidably provided in each of the third links, an end of the fourth link close to the second link extends into the third link, and an end of the fourth link away from the second link extends outward from the third link, the clamping block is fixed to the end of the fourth link extending from the third link, and an elastic member is provided between the end of the fourth link extending into the third link and the third link.

[0010] Furthermore, the headrest is removably provided with fixing blocks on both lateral sides, the lower end of the second connecting rod is connected to the corresponding fixing block, the second airbag is connected to the two fixing blocks via two rotating rods, and each end of the rotating rod away from the second airbag is rotatably connected to the fixing block. When the inclination angle of the headrest changes, the rotating rod rotates relative to the fixing block so that the second airbag is always in close contact with the front side of the headrest, and the airway passes through the rotating rod, the fixing block and the second connecting rod in sequence.

[0011] Furthermore, the upper end surface of the headrest is concavely provided with a groove, and the groove is an arc surface.

[0012] Furthermore, third airbags are provided inside the headrest at positions corresponding to both sides of the groove, and when the third airbags are inflated, the corresponding positions of the headrest are raised to change the deflection angle of the mouse's head.

[0013] Furthermore, it also includes a foot control panel, and the foot control panel is signal-connected to the first airbag and the first driving mechanism to control the working status of the first airbag and the first driving mechanism.

[0014] The adjustable fundus injection experimental platform of the present invention has at least the following beneficial effects: a first driving mechanism for controlling the horizontal position of a headrest is arranged on the experimental platform body, and a first airbag and a third airbag capable of changing the tilt angle of the headrest are also arranged, and the movement of these components can be controlled by an external foot pedal control panel, so that the experimenter can still automatically adjust the position of the mouse head when both hands are occupied, which is easy to operate and can improve the accuracy of injection; such automated adjustment saves the experimenter from having to put down the tools in his hands to adjust the position of the mouse, thereby improving the experimental efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 It is a structural schematic diagram of an embodiment of an adjustable fundus injection experimental platform of the present invention;

[0017] Figure 2 It is a schematic diagram of structures such as a headrest, a first airbag, and a slider in one embodiment of an adjustable fundus injection experimental platform of the present invention;

[0018] Figure 3 It is a schematic diagram of structures such as a laboratory table body, a headrest, and a head fixing mechanism in one embodiment of an adjustable fundus injection laboratory table of the present invention;

[0019] Figure 4 A partial cross-sectional view of the experimental platform body in one embodiment of an adjustable fundus injection experimental platform of the present invention Figure 1 ;

[0020] Figure 5 A partial cross-sectional view of the experimental platform body in one embodiment of an adjustable fundus injection experimental platform of the present invention Figure 2 ;

[0021] Figure 6It is a structural schematic diagram of a head fixing mechanism in one embodiment of an adjustable fundus injection experimental platform of the present invention;

[0022] Figure 7 It is a partial cross-sectional view of a head fixing mechanism in one embodiment of an adjustable fundus injection experimental platform of the present invention;

[0023] Figure 8 It is a partial cross-sectional view of a headrest in one embodiment of an adjustable fundus injection test platform of the present invention.

[0024] The meanings of the symbols in the accompanying drawings are:

[0025] The experimental table body 1, the baffle 11, the first inner groove 12, the second inner groove 13, the headrest 2, the lower subdivision 21, the upper subdivision 22, the groove 23, the first driving mechanism 3, the motor 31, the screw 32, the slider 33, the first connecting rod 34, the first airbag 4, the head fixing mechanism 5, the clamping block 51, the second driving mechanism 52, the second airbag 521, the second connecting rod 522, the third connecting rod 523, the airway 524, the rotating rod 525, the fourth connecting rod 526, the elastic member 527, the fixing block 6, the slide groove 61, the card block 62, the third airbag 7, the pedal control panel 8, the first placement groove 81, the first button 811, the second button 812, the third button 813, the fourth button 814, the second placement groove 82, the fifth button 821, the sixth button 822, the seventh button 823, the eighth button 824. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Please refer to Figure 1 and Figure 2 An adjustable fundus injection experimental platform of the present invention comprises an experimental platform body 1 and a headrest 2. The experimental platform body 1 is used to place mice, and the headrest 2 is used to raise the head of the mouse to facilitate the experimenter to perform the injection operation. A first driving mechanism 3 is arranged between the headrest 2 and the experimental platform body 1, and the headrest 2 moves horizontally along the length direction of the experimental platform body 1 under the drive of the first driving mechanism 3. A first airbag 4 is arranged on the headrest 2, and the headrest 2 can change its inclination angle when the first airbag 4 is inflated or deflated; the headrest 2 is also provided with a head fixing mechanism 5 for automatically clamping and fixing the head of the mouse.

[0028] The experimental table body 1 is provided with a baffle 11 , and the baffle 11 is arranged around the edge of the experimental table body 1 to surround the experimental table body 1 and form an accommodating space for placing mice therein.

[0029] The headrest 2 is arranged at a position where the upper end surface of the experimental table body 1 is located in the accommodating space. Specifically, the headrest 2 is located at one end of the length direction of the experimental table body 1 to match the position of the mouse's head. The headrest 2 includes a lower subdivision 21 and an upper subdivision 22. The lower subdivision 21 is arranged at the upper end of the experimental table body 1 in a horizontal state, and the lower subdivision 21 can slide relative to the experimental table body 1. The upper subdivision 22 is arranged at the upper end of the lower subdivision 21 and the front side of the upper subdivision 22 is rotatably connected to the lower subdivision 21. The rotation axis of the upper subdivision 22 relative to the lower subdivision 21 is horizontally arranged along the width direction of the experimental table body 1. When the upper subdivision 22 rotates relative to the lower subdivision 21, the inclination angle of the upper subdivision 22 changes. The upper end surface of the upper subdivision 22 is concavely provided with a groove 23, and the groove 23 is an arc surface so that it can fit the head of the mouse, so that the head of the mouse is placed more stably and comfortably. The first airbag 4 is disposed between the lower sub-section 21 and the upper sub-section 22. When the first airbag 4 is inflated, the upper sub-section 22 rotates relative to the lower sub-section 21 so that the inclination angle of the upper sub-section 22 changes. A first air pump (not shown in the figure) connected to the first airbag 4 is disposed in the experimental platform body 1. The first air pump is used to inflate or deflate the first airbag 4 to control the state of the first airbag 4.

[0030] Please refer to Figure 3 , Figure 4 and Figure 5 , the first driving mechanism 3 includes a motor 31, a screw 32 and a slider 33. A first inner groove 12 is provided inside the experimental table body 1 at a position corresponding to the headrest 2. The first inner groove 12 is provided along the length direction of the experimental table body 1. The first inner groove 12 penetrates the experimental table body 1 along the width direction of the experimental table body 1. The screw 32 is rotatably arranged in the first inner groove 12 along the length direction of the first inner groove 12. A second inner groove 13 is also provided inside the experimental table body 1 at a position corresponding to one end of the first inner groove 12. The motor 31 is installed in the second inner groove 13 and the output shaft of the motor 31 extends into the first inner groove 12 and is coaxially fixedly connected with the screw 32. The shape of the slider 33 matches the cross section of the first inner groove 12 and is screwed to the screw 32. When the screw 32 rotates, the slider 33 slides inside the first inner groove 12 along the length direction of the first inner groove 12. The slider 33 is connected to the headrest 2 via two first connecting rods 34. The two first connecting rods 34 are symmetrically arranged on both sides of the slider 33. Specifically, Figure 2As shown, the first connecting rod 34 is C-shaped, one end of the first connecting rod 34 is fixedly connected to a side wall of the slider 33, and the other end extends upward from the outside of the experimental table body 1 to the upper end surface of the experimental table body 1 and extends toward the lower subdivision 21 and is fixedly connected to the lower subdivision 21. Figure 3 As shown, the two side surfaces in the width direction of the laboratory table body 1 are respectively provided with notches for accommodating the sliding of the first connecting rod 34, and the first connecting rod 34 is located at the notch and is slidably connected to the side wall of the laboratory table body 1. In order to increase the comfort of the mice and reduce the probability of unnecessary stress reactions in the mice during the injection process, the experimenters usually lay a cushion on the laboratory table body 1. In order to lay the cushion more flatly and neatly, the first connecting rod 34 passes through the laboratory table body 1 at the edge, that is, at the position where the laboratory table body 1 is connected to the baffle 11.

[0031] Please refer to Figure 6 and Figure 7 , the head fixing mechanism 5 is detachably connected to the headrest 2 through two fixing blocks 6, and the two fixing blocks 6 are symmetrically arranged on the lateral sides of the headrest 2. Taking one of the fixing blocks 6 as an example: a groove 61 is recessed on the side of the lower subdivision 21 close to the fixing block 6, and the groove 61 is arranged along the length direction of the experimental platform body 1, and one end of the groove 61 passes through the lower subdivision 21 along the length direction of the experimental platform body 1. A block 62 matching the groove 61 is arranged on the side of the fixing block 6 facing the headrest 2, and the block 62 can slide relative to the groove 61. When the block 62 slides into the groove 61, the fixing block 6 is connected to the headrest 2. It should be emphasized that the groove 61 can be set as a dovetail groove so that the block 62 cannot move along the width direction of the experimental platform body 1, so that the block 62 located therein can be limited to prevent the block 62 from sliding out of the groove 61 laterally. The head fixing mechanism 5 includes two clamping blocks 51 and a second driving mechanism 52 disposed between the two clamping blocks 51. The two clamping blocks 51 are disposed on two lateral sides above the headrest 2, and the two clamping blocks 51 move toward or away from each other under the drive of the second driving mechanism 52 to clamp or release the head of the mouse.

[0032] The second driving mechanism 52 includes a second airbag 521, two second connecting rods 522, two third connecting rods 523 and two air passages 524. The second airbag 521 is arranged at the middle position of the upper part of the headrest 2. Specifically, the second airbag 521 is connected to the two fixing blocks 6 through two rotating rods 525. One end of each rotating rod 525 away from the second airbag 521 is rotationally connected to the fixing block 6. When the inclination angle of the headrest 2 changes, the rotating rod 525 rotates relative to the fixing block 6 so that the second airbag 521 is always in close contact with the front side of the headrest 2. The two second connecting rods 522, the two third connecting rods 523 and the two air passages 524 are symmetrically arranged on both sides of the headrest 2. The following is a detailed description of the structure of one side as an example.

[0033] The lower end of the second connecting rod 522 is connected to the corresponding fixing block 6. The second connecting rod 522 is L-shaped, and its vertical portion is connected to the fixing block 6. The horizontal portion extends from the upper end of the vertical portion to the middle part of the headrest 2. The horizontal portion of the second connecting rod 522 is provided with a cavity that passes through the second connecting rod 522 in the direction of the middle part of the headrest 2. The third connecting rod 523 is sealed and slides in the cavity in a horizontal state, and one end of the third connecting rod 523 extends outward from the cavity. A fourth connecting rod 526 is also horizontally slidable inside the third connecting rod 523. One end of the fourth connecting rod 526 close to the second connecting rod 522 extends into the third connecting rod 523, and one end of the fourth connecting rod 526 away from the second connecting rod 522 extends outward from the third connecting rod 523. An elastic member 527 is provided between one end of the fourth connecting rod 526 extending into the third connecting rod 523 and the third connecting rod 523. In the illustrated embodiment, the elastic member 527 is a coil spring, and the function of the elastic member 527 is to drive the fourth connecting rod 526 to slide horizontally and reset. Therefore, in other embodiments, the elastic member 527 can also be other elastic elements such as a spring sheet, as long as it can drive the fourth connecting rod 526 to slide and reset. The clamping block 51 is fixed to one end of the fourth connecting rod 526 extending out of the third connecting rod 523, and the clamping block 51 is in an arc shape with an opening toward the middle part of the headrest 2 to better match the head or neck curve of the mouse. The airway 524 passes through the rotating rod 525, the fixing block 6 and the second connecting rod 522 in sequence, that is, one end of the airway 524 is connected to the second airbag 521 through the rotating rod 525, and the other end of the airway 524 extends and connects the fixing block 6 and the second connecting rod 522 until the cavity, and the airway 524 is used to connect the second airbag 521 with the cavity. The air passage 524 can be implemented in many ways, such as providing a hose between the rotating rod 525, the second connecting rod 522 and the fixing block 6. Other ways are also possible as long as the above functions can be achieved.

[0034] Please refer to Figure 8 Furthermore, the headrest 2 is provided with a third airbag 7. The third airbag 7 has two, and the two third airbags 7 are symmetrically arranged on both sides of the upper sub-portion 22. Specifically, the third airbag 7 is located inside the upper sub-portion 22, and the two third airbags 7 are respectively arranged at positions corresponding to both sides of the groove 23. The two third airbags 7 are respectively connected to a second air pump (not shown in the figure), and the second air pump is used to inflate or deflate the corresponding third airbag 7 to control the state of the third airbag 7.

[0035] An adjustable fundus injection experimental platform of the present invention also includes a foot control panel 8, the upper end surface of the foot control panel 8 has a first placement groove 81 for the left foot to be placed therein and a second placement groove 82 for the right foot to be placed therein. The foot control panel 8 is provided with a first button 811 and a second button 812 corresponding to the upper and lower parts of the first placement groove 81 (i.e., the positions of the first placement groove 81 corresponding to the left toe and the left heel of the left foot), respectively. The first button 811 and the second button 812 are both electrically connected to the motor 31 for controlling the forward and reverse rotation of the motor 31. The foot control panel 8 is provided with a third button 813 and a fourth button 814 corresponding to the left and right parts of the first placement groove 81, respectively. The third button 813 and the fourth button 814 are both electrically connected to the solenoid valve on the second air pump for controlling the inflation and deflation of the corresponding third airbag 7. The foot control panel 8 is provided with a fifth button 821 and a sixth button 822 at the positions corresponding to the upper and lower parts of the second placement slot 82 (i.e., the positions corresponding to the toe and the heel of the right foot of the second placement slot 82), respectively. The fifth button 821 and the sixth button 822 are electrically connected to the electromagnetic valve on the first air pump to control the inflation and deflation of the first air bag 4. The foot control panel 8 is provided with a seventh button 823 and an eighth button 824 at the positions corresponding to the left and right parts of the second placement slot 82, respectively. The seventh button 823 and the eighth button 824 are both electrically connected to the electromagnetic valve on another second air pump to control the inflation and deflation of another third air bag 7.

[0036] One embodiment of an adjustable fundus injection test bench of the present invention works as follows: when a mouse needs to be injected, the mouse is placed on the test bench body 1 so that the mouse head is located in the groove 23. At this time, the gas in the second airbag 521 is squeezed, enters the cavity through the airway 524, and pushes out the third connecting rod 523, so that the clamping block 51 contacts the mouse's head to stabilize the mouse's head. The elastic member 527 between the third connecting rod 523 and the fourth connecting rod 526 enables the fourth connecting rod 526 to be retracted toward the third connecting rod 523, so that the head fixing mechanism 5 can adapt to more different mouse head sizes.

[0037] When the horizontal position of the mouse needs to be adjusted, the left foot steps on the first button 811 or the second button 812, and the motor 31 rotates forward or reverses to drive the screw 32 to rotate forward or reverse, so that the slider 33 moves along the length direction of the screw 32, and the headrest 2 also moves with the movement of the slider 33.

[0038] When the tilt angle of the mouse head needs to be adjusted, the right foot steps on the fifth button 821 or the sixth button 822, and the first airbag 4 is inflated or deflated to drive the tilt angle of the upper subsection 22 to change, thereby changing the tilt angle of the mouse head. At this time, we can also control the inflation and deflation of the third airbag 7 by stepping on the third button 813 and the fourth button 814, or stepping on the fifth button 821 and the sixth button 822, so as to adjust the angle of the mouse head in the left and right directions.

[0039] In order to adjust the position and tilt angle of the mouse's head, the headrest 2 needs to be moved accordingly, which may cause the mouse's head to shake, especially when the headrest 2 is moved horizontally. The mouse's body may move along with the movement of the headrest 2. At this time, the fixation of the mouse's head by the head fixing mechanism 5 can make the mouse's head more stable and move accordingly with the movement of the headrest 2.

[0040] Compared with the prior art, the adjustable fundus injection experimental platform of the present invention is provided with a first driving mechanism for controlling the horizontal position of the headrest on the experimental platform body, and also with a first airbag and a third airbag capable of changing the tilt angle of the headrest. The movements of these components can be controlled by an external foot pedal control panel, so that the experimenter can still automatically adjust the position of the mouse head when both hands are occupied. The operation is convenient and the accuracy of the injection can be improved. Such automated adjustment saves the experimenter from having to put down the tools in his hands to adjust the position of the mouse, thereby improving the experimental efficiency.

Claims

1. An adjustable fundus injection test bench, comprising a test bench body, characterized in that: The experimental table body is provided with a headrest for raising the mouse's head, and a first driving mechanism is provided between the headrest and the experimental table body. The headrest moves horizontally along the length direction of the experimental table body under the drive of the first driving mechanism. The headrest is provided with a first airbag, and the headrest can change its inclination angle when the first airbag is inflated or deflated; the headrest is also provided with a head fixing mechanism for automatically clamping and fixing the mouse's head.

2. The adjustable fundus injection test platform according to claim 1, characterized in that: The headrest includes a lower section and an upper section, the lower section is horizontally arranged at the upper end of the experimental table body, the upper section is arranged at the upper end of the lower section and the front side of the upper section is rotatably connected to the lower section, the first airbag is arranged between the lower section and the upper section, and when the first airbag is inflated, the upper section rotates with the connection point between itself and the lower section as the center, so that the inclination angle of the upper section changes.

3. The adjustable fundus injection test platform according to claim 1, characterized in that: The first driving mechanism includes a motor, a screw and a slider. A first inner groove is opened inside the laboratory bench body at a position corresponding to the headrest. The screw is rotatable in the first inner groove along the length direction of the laboratory bench body. A second inner groove is also opened inside the laboratory bench body at a position corresponding to one end of the first inner groove. The motor is installed in the second inner groove and the output shaft of the motor extends into the first inner groove and is drivingly connected to the screw. The slider matches the first inner groove and is screwed onto the screw. The slider is connected to the headrest through a first connecting rod.

4. The adjustable fundus injection experimental platform as claimed in claim 1, characterized in that: The head fixing mechanism includes two clamping blocks and a second driving mechanism arranged between the two clamping blocks. The two clamping blocks are arranged on two lateral sides above the headrest. The two clamping blocks move toward or away from each other under the drive of the second driving mechanism to clamp or relax the head of the mouse.

5. The adjustable fundus injection experimental platform as claimed in claim 4, characterized in that: The second driving mechanism includes a second airbag, two second connecting rods, two third connecting rods and two air passages, the second airbag is arranged on the upper part of the headrest, the two second connecting rods are respectively arranged on the lateral sides of the headrest, and the two second connecting rods are each provided with a cavity, the two third connecting rods are respectively horizontally sealed and slidably connected in the two cavities, the two clamping blocks are respectively arranged at one end of the two third connecting rods extending out of the cavity, the two air passages respectively connect the two cavities with the second airbag, the gas in the second airbag can be pressed into the cavity through the air passage, thereby pushing out the third connecting rod, so that the two clamping blocks move toward each other to clamp the mouse head.

6. The adjustable fundus injection experimental platform as claimed in claim 5, characterized in that: A fourth link is horizontally slidably provided in each of the third links, an end of the fourth link close to the second link extends into the third link, and an end of the fourth link away from the second link extends outward from the third link, the clamping block is fixed to an end of the fourth link extending out of the third link, and an elastic member is provided between an end of the fourth link extending into the third link and the third link.

7. The adjustable fundus injection experimental platform as claimed in claim 5, characterized in that: The headrest is provided with detachable fixing blocks on both lateral sides, the lower end of the second connecting rod is connected to the corresponding fixing block, the second airbag is connected to the two fixing blocks via two rotating rods, and each end of the rotating rod away from the second airbag is rotatably connected to the fixing block. When the inclination angle of the headrest changes, the rotating rod rotates relative to the fixing block so that the second airbag is always in close contact with the front side of the headrest, and the airway passes through the rotating rod, the fixing block and the second connecting rod in sequence.

8. The adjustable fundus injection experimental platform as claimed in claim 1, characterized in that: The upper end surface of the headrest is concave downwardly provided with a groove, and the groove is an arc surface.

9. The adjustable fundus injection experimental platform as claimed in claim 8, characterized in that: The third airbags are arranged inside the headrest at positions corresponding to the two sides of the groove. When the third airbags are inflated, the corresponding positions of the headrest are raised to change the deflection angle of the mouse's head.

10. An adjustable fundus injection experimental platform according to any one of claims 1 to 9, characterized in that: It also includes a foot control panel, which is signal-connected to the first airbag and the first driving mechanism to control the working states of the first airbag and the first driving mechanism.

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