Animal living body model auxiliary operation equipment and spinal cord injury animal model preparation method

Abstract

The invention relates to the technical field of veterinary surgical instruments, and discloses animal living body model auxiliary operation equipment and a spinal cord injury animal model preparation method. An animal is placed on the platform, the animal is fixedly limited on the platform, the platform is moved, the animal is carried by the platform to move, the spinal cord segment, needing to be operated, of the animal is moved to the position under the metal sleeve, then the impact hammer is placed into the metal sleeve from the upper portion, and the impact hammer falls down along the metal sleeve. The impact hammer falls to the position of the spinal cord segment, needing to be operated, of the animal, so that preparation of the animal model is completed, the animals are different in size, the platform can be moved freely in the horizontal plane according to the treatment positions obtained according to the sizes of the animals, and the platform can position the treatment positions of the animals of any size; therefore, the animal does not need to be placed and fixed again when the spinal cord segment position of the animal is selected every time, the adjusting capacity of equipment is improved through horizontal plane movement of the platform, and the animal model preparation efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of veterinary surgical instruments, in particular to an animal live model auxiliary operation device and a spinal cord injury animal model preparation method. BACKGROUND

[0002] In animal model preparation, live animals are often needed to assist in the performance of experiments, such as the experiments performed in Chinese patent CN111408051B, which are relatively mature animal experiment methods. In the preparation of an animal model of spinal cord injury, animals are also needed to assist in experimental operation, so as to achieve the preparation of an animal model and facilitate observation of the specific conditions of the animal body reaction.

[0003] In the existing animal live model auxiliary operation device, such as Chinese patent application CN119344907A, the space inside the placement table can be adjusted by the placement table, the extension table, the movable clamping jaw and the automatic expansion adaptation assembly, so as to adapt to experiments on some animals with larger body sizes. When some animals with larger body sizes are placed, the clamping mechanism can be automatically adjusted, so that it can automatically adapt to the body size of the animal, making it suitable for experiments on a variety of animal species, and no longer limited to a specific body size or species, increasing the flexibility of the experiment and avoiding the problem of inconsistent clamping force and position under manual adjustment. By setting the movable plate, the moving plate, the impact head, the electric push rod and the force adaptation adjustment assembly, when experiments are performed on animals with different body sizes, the initial position of the moving plate can be adjusted according to the body size of the experimental animal, and the impact force of the initial state can be changed. By adjusting the impact force, the force applied can be suitable for a specific animal, avoiding the problem of excessive damage to the spine due to excessive force, or the problem of being unable to cause damage to the spine due to small impact force. Automatic adjustment of the impact force can ensure that the force and position applied in each experiment are consistent, reduce the influence of human factors, and improve the consistency and repeatability of experimental data.

[0004] However, there are still the following problems: the sizes of animals are different, and the spinal cord segment position of the selected animal needs to be repositioned and fixed each time, and the adjustment ability of the device is low, which reduces the efficiency of animal model preparation. SUMMARY

[0005] In view of the deficiencies of the prior art, the animal live model auxiliary operation device has the advantages that the animal live model auxiliary operation device can be used to fix animals of different sizes without repositioning the animals each time the spinal segment position of the animals is selected, the adjustment capacity of the device is improved by moving the horizontal plane of the platform, and the efficiency of animal model preparation is effectively improved.

[0006] To achieve the above object, the animal live model auxiliary operation device provided by the present application comprises a table body, a preparation mechanism arranged on the table body, and an auxiliary mechanism arranged on the table body. The auxiliary mechanism comprises a platform, the table body is provided with the platform, the platform is below the metal sleeve, and the platform moves on a horizontal plane.

[0007] Preferably, the preparation mechanism further comprises a base, the base is fixedly installed on the table body, a first sliding channel is formed in one side of the base, the length of the first sliding channel is matched with the width of the base, a vertical rod is movably arranged on one side of the base, and the bottom end of the vertical rod is in sliding fit with the first sliding channel.

[0008] Preferably, a first sliding member is in sliding fit with the vertical rod, the first sliding member is sleeved on the vertical rod, the movement track of the first sliding member is located on the upper half of the vertical rod, a first fixing member is movably installed on the first sliding member, the first fixing member penetrates through the first sliding member, the first fixing member limits the movement of the first sliding member when the first fixing member abuts against the vertical rod, a suspension rod is fixedly installed on the first sliding member, and the suspension rod extends above the platform.

[0009] Preferably, a second sliding member is in sliding fit with the suspension rod, the second sliding member is sleeved on the suspension rod, the movement track of the second sliding member is located on one side of the suspension rod, the movement track of the second sliding member is adjacent to the end of the suspension rod away from the first sliding member, a second fixing member is movably installed on the second sliding member, the second fixing member penetrates through the second sliding member, and the second fixing member limits the movement of the second sliding member when the second fixing member abuts against the suspension rod.

[0010] Preferably, the second sliding piece is movably mounted with the metal sleeve, the metal sleeve is vertically arranged, the metal sleeve penetrates the second sliding piece, the metal sleeve is a hollow structure, the top end and the bottom end of the metal sleeve are open ends, the second sliding piece is movably mounted with a third fixing piece, the third fixing piece penetrates the second sliding piece, when the third fixing piece abuts against the metal sleeve, the third fixing piece limits the movement of the metal sleeve, the impact hammer is arranged in the metal sleeve at the top end, and the cross-sectional size of the impact hammer is matched with the internal cross-sectional size of the metal sleeve.

[0011] Preferably, the auxiliary mechanism further comprises a second sliding channel, the other side of the base is provided with the second sliding channel, the length of the second sliding channel is matched with the width of the base, a longitudinal moving piece is slidably arranged in the second sliding channel, the top end of the longitudinal moving piece extends above the second sliding channel, a cross rail is fixedly mounted on the top end of the longitudinal moving piece, the cross rail is perpendicular to the longitudinal moving piece, and the platform is slidably arranged on the cross rail and located above the cross rail.

[0012] Preferably, the base is provided with a positioning rod, the positioning rod is vertically arranged and penetrates the base, the positioning rod penetrates the top surface of the table body and is located below the platform, a bevel gear is rotatably arranged on the base, the bevel gear is sleeved on the positioning rod and threadedly connected with the positioning rod, and a rotating rod is rotatably arranged on the base and penetrates the base, and the rotating rod is engaged with the bevel gear.

[0013] Preferably, a first side frame is rotatably arranged on one side of the platform, a telescopic movable limiting piece is movably mounted on the first side frame, the telescopic movable limiting piece is used for fixing and limiting the body part of the animal, a second side frame is rotatably arranged on one side of the other side of the platform, a head limiting piece is movably mounted on the second side frame, the head limiting piece is used for fixing and limiting the head of the animal, and a third side frame is rotatably arranged on the other side of the other side of the platform, a tail limiting piece is movably mounted on the third side frame, and the tail limiting piece is used for fixing and limiting the tail of the animal.

[0014] Preferably, the first side frame, the second side frame and the third side frame are all provided with a positioning button, and the positioning button is used for limiting the rotation of the first side frame, the second side frame and the third side frame after being pressed.

[0015] A spinal cord injury animal model preparation method uses the animal live model auxiliary operation device.

[0016] Compared with the prior art, the animal live model auxiliary operation device has the following beneficial effects: 1. The animal live model auxiliary operation device, by placing the animal on the platform and fixing the animal on the platform, moving the platform, the platform carrying the animal moves, the position of the spinal segment of the animal needing to be operated is moved to the position directly below the metal sleeve, the impact hammer is placed into the metal sleeve from above, the impact hammer falls along the metal sleeve, the impact hammer falls on the position of the spinal segment of the animal needing to be operated, and thus the preparation of the animal model is completed.

[0017] 2. The animal live model auxiliary operation device, by the setting of the first sliding member and the second sliding member, the setting position and height of the metal sleeve can be adjusted at will, the applicability of the device is improved, the metal sleeve is prevented from being too low to abut against and touch the animal, and the quality of the prepared animal model is improved.

[0018] 3. The animal live model auxiliary operation device, by the setting of the positioning rod, the bevel gear and the rotating rod, the rotating rod drives the bevel gear to rotate, the bevel gear drives the positioning rod to rotate, the positioning rod is turned upward to abut against the bottom surface of the platform, the positioning rod limits the movement of the platform, the overall limiting movement of the horizontal movement of the platform is completed by the convenient structure, the positioning limitation is conveniently and quickly completed, and the stability of the device is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the auxiliary operation device of the present application. Figure 2 It is a preparation mechanism structure schematic view of the present application. Figure 3 It is a base structure distribution schematic view of the present application. Figure 4 It is a suspension rod structure distribution schematic view of the present application. Figure 5 It is a metal sleeve structure distribution schematic view of the present application. Figure 6 It is an auxiliary mechanism structure schematic view of the present application. Figure 7 It is a first side frame structure distribution schematic view of the present application. Figure 8 It is a platform structure distribution schematic view of the present application. Figure 9It is a structure distribution schematic diagram of the second slide of the application. Figure 10 It is a structure distribution schematic diagram of the bevel gear of the application. Figure 11 It is a structure distribution schematic diagram of the second side frame of the application. Figure 12 It is a structure distribution schematic diagram of the tail limiting piece of the application.

[0020] In the figure: 1, table body; 2, preparation mechanism; 21, base; 22, first slide; 23, vertical rod; 24, first sliding piece; 25, first fixing piece; 26, suspension rod; 27, second sliding piece; 28, second fixing piece; 29, metal sleeve; 210, third fixing piece; 211, impact hammer; 3, auxiliary mechanism; 31, second slide; 32, longitudinal moving piece; 33, cross rail; 34, platform; 35, positioning rod; 36, bevel gear; 37, rotating rod; 38, first side frame; 39, telescopic movable limiting piece; 310, second side frame; 311, head limiting piece; 312, third side frame; 313, tail limiting piece. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0022] As introduced in the background, there are deficiencies in the prior art. In order to solve the above technical problems, the animal live model auxiliary operation device and the spinal cord injury animal model preparation method are provided.

[0023] In a typical embodiment of the application, as shown in Figure 1 the animal live model auxiliary operation device includes a table body 1, a preparation mechanism 2 arranged on the table body 1, and an auxiliary mechanism 3 arranged on the table body 1. The preparation mechanism 2 includes a metal sleeve 29 and an impact hammer 211. The metal sleeve 29 is arranged on the table body 1 and is arranged vertically. The impact hammer 211 is arranged on the table body 1 and is matched with the metal sleeve 29. The impact hammer 211 vertically falls through the metal sleeve 29 to prepare and process the animal. The auxiliary mechanism 3 includes a platform 34. The platform 34 is arranged on the table body 1 and is below the metal sleeve 29. The platform 34 moves on a horizontal plane. The platform 34 carries the animal to move the position to be processed to be directly below the metal sleeve 29.

[0024] When the application is used: The animal is placed on the platform 34 and fixed on the platform 34, the platform 34 is moved, the platform 34 carries the animal to move, the position of the spinal segment of the animal to be operated is moved to the position directly below the metal sleeve 29, the impact hammer 211 is placed in the metal sleeve 29 from above, the impact hammer 211 falls along the metal sleeve 29, and the impact hammer 211 falls on the position of the spinal segment of the animal to be operated, so as to complete the preparation of the animal model. The size of the animal is different, and the treatment position obtained according to the size of the animal can be moved arbitrarily in the horizontal plane. The platform 34 can position the treatment position of the animal of any size, so that the position of the spinal segment of the animal is selected each time without repositioning and fixing the animal. The horizontal plane movement of the platform 34 improves the adjustment ability of the equipment and effectively improves the efficiency of the animal model preparation.

[0025] Embodiment 2, as shown in Figures 2-5 The difference from the above embodiment is that the preparation mechanism 2 further comprises a base 21, the base 21 is fixedly installed on the table body 1, a first sliding groove 22 is formed on one side of the base 21, the length of the first sliding groove 22 is matched with the width of the base 21, and a vertical rod 23 is movably arranged on one side of the base 21. The bottom end of the vertical rod 23 is in sliding cooperation with the first sliding groove 22.

[0026] Further, the first sliding member 24 is in sliding cooperation with the vertical rod 23, the first sliding member 24 is sleeved on the vertical rod 23, the moving track of the first sliding member 24 is located on the upper half of the vertical rod 23, the first fixing member 25 is movably installed on the first sliding member 24, the first fixing member 25 penetrates through the first sliding member 24, and the first fixing member 25 limits the movement of the first sliding member 24 when the first fixing member 25 abuts against the vertical rod 23. The first sliding member 24 is fixedly installed with a suspension rod 26, and the suspension rod 26 extends above the platform 34.

[0027] Further, the second sliding member 27 is in sliding cooperation with the suspension rod 26, the second sliding member 27 is sleeved on the suspension rod 26, the moving track of the second sliding member 27 is located on one side of the suspension rod 26, the moving track of the second sliding member 27 is adjacent to the end of the suspension rod 26 away from the first sliding member 24, and the second fixing member 28 is movably installed on the second sliding member 27. The second fixing member 28 penetrates through the second sliding member 27, and the second fixing member 28 limits the movement of the second sliding member 27 when the second fixing member 28 abuts against the suspension rod 26.

[0028] Furthermore, a metal sleeve 29 is movably mounted on the second sliding member 27. The metal sleeve 29 is vertically arranged and penetrates the second sliding member 27. The metal sleeve 29 has a hollow structure, with both the top and bottom ends being open. A third fixing member 210 is movably mounted on the second sliding member 27. The third fixing member 210 penetrates the second sliding member 27. When the third fixing member 210 abuts against the metal sleeve 29, it restricts the movement of the metal sleeve 29. An impact hammer 211 is provided at the top end inside the metal sleeve 29. The cross-sectional dimensions of the impact hammer 211 are adapted to the internal cross-sectional dimensions of the metal sleeve 29.

[0029] In the process of preparing the animal model, firstly, the first fixing member 25 is loosened, and the first sliding member 24 is moved on the upright 23 to adjust its height. After adjusting the height of the first sliding member 24, the first fixing member 25 is tightened to restrict the movement of the first sliding member 24. The first sliding member 24 then moves the suspension rod 26, thus simultaneously adjusting its height. Next, the second fixing member 28 is loosened, and the second sliding member 27 is moved on the suspension rod 26 to adjust its lateral position. After adjusting the position of the second sliding member 27, the second fixing member 28 is tightened to restrict the movement of the second sliding member 27. 7. Move the metal sleeve 29, that is, adjust the position of the metal sleeve 29 synchronously, and then loosen the third fixing member 210 to control the metal sleeve 29 to move on the second sliding member 27 to adjust the vertical position of the metal sleeve 29. After adjusting the vertical position of the metal sleeve 29, tighten the third fixing member 210 to restrict the movement of the metal sleeve 29. Then, when preparing the spinal cord injury animal model, take an impact hammer 211 of appropriate weight, put the impact hammer 211 into the top of the metal sleeve 29, and let the impact hammer 211 fall down along the metal sleeve 29 so that the impact hammer 211 falls on the spinal cord segment of the animal that needs to be treated, thus completing the preparation of the animal model.

[0030] Example 3, as Figures 6-12 As shown, the difference from the above embodiment is that the auxiliary mechanism 3 also includes a second slide rail 31. The second slide rail 31 is provided on the other side of the base 21. The length of the second slide rail 31 is adapted to the width of the base 21. A longitudinal moving member 32 is slidably fitted in the second slide rail 31. The top end of the longitudinal moving member 32 extends above the second slide rail 31. A horizontal rail 33 is fixedly installed on the top end of the longitudinal moving member 32. The horizontal rail 33 is perpendicular to the longitudinal moving member 32. A platform 34 is slidably fitted on the horizontal rail 33. The platform 34 is located above the horizontal rail 33.

[0031] Further, the base 21 is provided with a positioning rod 35 vertically arranged, the positioning rod 35 penetrates the base 21, the positioning rod 35 penetrates the top surface of the table body 1, the positioning rod 35 is located below the platform 34, the base 21 is rotationally fitted with a bevel gear 36, the bevel gear 36 is sleeved on the positioning rod 35, the bevel gear 36 is threadedly fitted with the positioning rod 35, the base 21 is rotationally fitted with a rotating rod 37, the rotating rod 37 penetrates the base 21, and the rotating rod 37 is engaged with the bevel gear 36.

[0032] Further, one side of the platform 34 is rotationally fitted with a first side frame 38, the first side frame 38 is movably installed with a telescopic movable limiting piece 39, the telescopic movable limiting piece 39 is used for fixing and limiting the body part of the animal, one side of the other side of the platform 34 is rotationally fitted with a second side frame 310, the second side frame 310 is movably installed with a head limiting piece 311, the head limiting piece 311 is used for fixing and limiting the head of the animal, the other side of the other side of the platform 34 is rotationally fitted with a third side frame 312, the third side frame 312 is movably installed with a tail limiting piece 313, and the tail limiting piece 313 is used for fixing and limiting the tail of the animal.

[0033] Further, the first side frame 38, the second side frame 310, and the third side frame 312 are all provided with a positioning button, the positioning button is used for limiting the rotation of the first side frame 38, the second side frame 310, and the third side frame 312 after being pressed down.

[0034] When securing the animal, first place the animal on platform 34, deflect the first side frame 38 so that it is parallel to the animal's body, press the positioning button to restrict the deflection of the first side frame 38, control the telescopic movable limit member 39 to move on the first side frame 38, so that the telescopic movable limit member 39 is moved above the animal's body, and then control the telescopic movable limit member 39 to extend to abut against the animal's body, so that the telescopic movable limit member 39 secures and restricts the animal's body. Next, deflect the second side frame 310 so that it faces the animal's head, press the positioning button to restrict the deflection of the second side frame 310, control the head limit member 311 to extend to abut against the animal's head, so that the head limit member 311 secures and restricts the animal's head. Then deflect the third side frame 312 so that the third side frame... 312 faces the animal's tail, presses the positioning button to limit the deflection of the third side frame 312, controls the tail limiting member 313 to extend to abut against the animal's tail, so that the tail limiting member 313 fixes and restricts the animal's tail, and then controls the platform 34 to move, so that the platform 34 moves laterally on the horizontal rail 33. At the same time, the platform 34 and the horizontal rail 33 drive the longitudinal moving member 32 to move longitudinally in the second slide 31, so that the platform 34 can move arbitrarily in the plane, so that the platform 34 carries the animal to move, so as to move the spinal cord segment of the animal that needs to be treated to be directly below the metal sleeve 29. Then rotate the rotating rod 37, the rotating rod 37 drives the helical gear 36 to rotate, the helical gear 36 drives the positioning rod 35 to rotate, so that the positioning rod 35 rotates upward to abut against the bottom surface of the platform 34, so that the positioning rod 35 restricts the movement of the platform.

[0035] Working principle of the invention: The animal is placed on platform 34 and fixed in place. Platform 34 is moved, carrying the animal, so that the spinal cord segment to be operated on is located directly below metal sleeve 29. Then, impact hammer 211 is placed into metal sleeve 29 from above. Impact hammer 211 falls down along metal sleeve 29, landing on the spinal cord segment to be operated on, thus completing the preparation of the animal model. Since the animals are of different sizes, the platform 34 can be moved arbitrarily in the horizontal plane according to the size of the animal. Platform 34 can achieve the positioning of the treatment position for animals of any size. Therefore, the spinal cord segment position of the animal does not need to be repositioned and fixed each time. The horizontal movement of platform 34 improves the adjustment capability of the equipment and effectively improves the efficiency of animal model preparation. Wherein, when the animal model is prepared, first loosen the first fixing member 25, control the first sliding member 24 to move on the vertical rod 23 to adjust the height of the first sliding member 24, after the height of the first sliding member 24 is adjusted, tighten the first fixing member 25 to limit the movement of the first sliding member 24, the first sliding member 24 drives the suspension rod 26 to move, namely, the height of the suspension rod 26 is adjusted synchronously, then loosen the second fixing member 28, control the second sliding member 27 to move on the suspension rod 26 to adjust the lateral position of the second sliding member 27, after the position of the second sliding member 27 is adjusted, tighten the second fixing member 28 to limit the movement of the second sliding member 27, the second sliding member 27 drives the metal sleeve 29 to move, namely, the position of the metal sleeve 29 is adjusted synchronously, then loosen the third fixing member 210, control the metal sleeve 29 to move on the second sliding member 27 to adjust the up-down height position of the metal sleeve 29, after the up-down height position of the metal sleeve 29 is adjusted, tighten the third fixing member 210 to limit the movement of the metal sleeve 29, then prepare the spinal cord injury animal model, take a weight appropriate impact hammer 211, put the impact hammer 211 into the top end of the metal sleeve 29, the impact hammer 211 falls along the metal sleeve 29, the impact hammer 211 falls on the spinal cord segment of the animal to be treated, so that the preparation of the animal model is completed; When the animal is fixed, the animal is first placed on the platform 34, the first side frame 38 is deflected, the first side frame 38 is parallel to the body of the animal, the positioning button is pressed to limit the deflection of the first side frame 38, the telescopic movable limiting member 39 is controlled to move on the first side frame 38, the telescopic movable limiting member 39 is moved above the body of the animal, the telescopic movable limiting member 39 is controlled to extend to the body of the animal, so that the telescopic movable limiting member 39 fixes and limits the body of the animal, the second side frame 310 is deflected, the second side frame 310 is directed to the head of the animal, the positioning button is pressed to limit the deflection of the second side frame 310, the head limiting member 311 is controlled to extend to the head of the animal, so that the head limiting member 311 fixes and limits the head of the animal, the third side frame 312 is deflected, the third side frame 312 is directed to the tail of the animal, the positioning button is pressed to limit the deflection of the third side frame 312, the tail limiting member 313 is controlled to extend to the tail of the animal, so that the tail limiting member 313 fixes and limits the tail of the animal, then the platform 34 is controlled to move, the platform 34 moves transversely on the cross rail 33, and the platform 34 drives the longitudinal moving member 32 to move longitudinally in the second slide 31, so that the platform 34 moves arbitrarily in the plane, the platform 34 carries the animal to move, so that the position of the spinal cord segment of the animal to be treated is moved to the position directly below the metal sleeve 29, then the rotating rod 37 is rotated, the rotating rod 37 drives the bevel gear 36 to rotate, the bevel gear 36 drives the positioning rod 35 to rotate, the positioning rod 35 is turned out upward to abut against the bottom surface of the platform 34, so that the positioning rod 35 limits the movement of the platform.

[0036] A method for preparing a spinal cord injury animal model, which uses the animal live model auxiliary operation device.

[0037] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An animal live model auxiliary operation device, comprising a table body, a preparation mechanism arranged on the table body, and an auxiliary mechanism arranged on the table body, characterized in that: the preparation mechanism comprises a metal sleeve and a hammer, the metal sleeve is arranged on the table body and vertically arranged, the hammer is arranged on the table body and matched with the metal sleeve, and the hammer vertically falls through the metal sleeve to perform preparation treatment on the animal; and the auxiliary mechanism comprises a platform, the platform is arranged on the table body and below the metal sleeve, and the platform moves on a horizontal plane and carries the animal to a position to be treated and moves to directly below the metal sleeve.

2. The animal live model auxiliary operation device according to claim 1, characterized in that: the preparation mechanism further comprises a base, the base is fixedly arranged on the table body, a first sliding channel is arranged on one side of the base, the length of the first sliding channel is matched with the width of the base, a vertical rod is movably arranged on one side of the base, and the bottom end of the vertical rod is slidably matched with the first sliding channel.

3. The animal live model auxiliary operation device according to claim 2, characterized in that: a first sliding piece is slidably matched with the vertical rod, the first sliding piece is sleeved on the vertical rod, the moving track of the first sliding piece is located on the upper half of the vertical rod, a first fixing piece is movably arranged on the first sliding piece, the first fixing piece penetrates through the first sliding piece, the first fixing piece limits the movement of the first sliding piece when the first fixing piece abuts against the vertical rod, a suspension rod is fixedly arranged on the first sliding piece, and the suspension rod extends above the platform.

4. The animal live model auxiliary operation device according to claim 3, characterized in that: a second sliding piece is slidably matched with the suspension rod, the second sliding piece is sleeved on the suspension rod, the moving track of the second sliding piece is located on one side of the suspension rod, the moving track of the second sliding piece is adjacent to the end of the suspension rod away from the first sliding piece, a second fixing piece is movably arranged on the second sliding piece, the second fixing piece penetrates through the second sliding piece, and the second fixing piece limits the movement of the second sliding piece when the second fixing piece abuts against the suspension rod.

5. The animal live model auxiliary operation device according to claim 4, characterized in that: the metal sleeve is movably arranged on the second sliding piece, the metal sleeve is vertically arranged and penetrates through the second sliding piece, the metal sleeve is a hollow structure, the top end and the bottom end of the metal sleeve are both open ends, a third fixing piece is movably arranged on the second sliding piece, the third fixing piece penetrates through the second sliding piece, the third fixing piece limits the movement of the metal sleeve when the third fixing piece abuts against the metal sleeve, and the hammer is arranged at the top end of the metal sleeve, and the cross-sectional size of the hammer is matched with the internal cross-sectional size of the metal sleeve. ​ ​ ​ ​ ​ ​ 6. The animal live model auxiliary operation device according to claim 5, characterized in that: The auxiliary mechanism further comprises a second sliding channel, the second sliding channel is arranged on the other side of the base, the length of the second sliding channel is matched with the width of the base, a longitudinal moving part is slidingly arranged in the second sliding channel, the top end of the longitudinal moving part extends above the second sliding channel, a cross rail is fixedly arranged on the top end of the longitudinal moving part, the cross rail is perpendicular to the longitudinal moving part, and the platform is slidingly arranged on the cross rail and above the cross rail.

7. The animal live model auxiliary operation device according to claim 6, characterized in that: The base is provided with a positioning rod, the positioning rod is vertically arranged, the positioning rod penetrates through the base and the top surface of the table body, the positioning rod is below the platform, a bevel gear is rotatably arranged on the base, the bevel gear is sleeved on the positioning rod, the bevel gear is threadedly connected with the positioning rod, and a rotating rod is rotatably arranged on the base and penetrates through the base, and the rotating rod is engaged with the bevel gear.

8. The animal live model auxiliary operation device according to claim 7, characterized in that: A first side frame is rotatably arranged on one side of the platform, a telescopic movable limiting part is movably arranged on the first side frame, the telescopic movable limiting part is used for fixing and limiting the body part of the animal, a second side frame is rotatably arranged on one side of the other side of the platform, a head limiting part is movably arranged on the second side frame, the head limiting part is used for fixing and limiting the head of the animal, a third side frame is rotatably arranged on the other side of the other side of the platform, and a tail limiting part is movably arranged on the third side frame, the tail limiting part is used for fixing and limiting the tail of the animal.

9. The animal live model auxiliary operation device according to claim 8, characterized in that: The first side frame, the second side frame and the third side frame are all provided with a positioning button, the positioning button is used for limiting the rotation of the first side frame, the second side frame and the third side frame after being pressed.

10. A spinal cord injury animal model preparation method, which uses the animal live model auxiliary operation device according to any one of claims 1-9.

Images