Laboratory spinal cord injury modeling device convenient to position

Abstract

The utility model provides a laboratory spinal cord injury modeling device convenient to position. The laboratory spinal cord injury modeling device convenient to position comprises a bottom plate platform, an animal placing area is arranged on the top face of the bottom plate platform, a positioning ruler is arranged on the bottom plate platform, scales are arranged on the positioning ruler, and the two ends of the positioning ruler are erected above the animal placing area through positioning rods. The bottom plate platform is further provided with a beating assembly, the beating assembly comprises a vertical telescopic rod, a transverse supporting rod and a beating part, the fixed end of the vertical telescopic rod is installed on the bottom plate platform in a sliding mode through a beating sliding block, and a first locking piece for preventing sliding is arranged at the joint of the beating sliding block and the bottom plate platform; a transverse supporting rod is arranged at the telescopic end of the vertical telescopic rod in a sliding mode, a second locking piece for preventing the transverse supporting rod from sliding is arranged at the sliding connection position, scales are also arranged on the transverse supporting rod, and one end of the transverse supporting rod extends to the animal containing area and is provided with a beating part used for beating. The molding device is convenient for a tester to quickly adjust and position, and is accurate in positioning and good in effect.

Description

Technical Field

[0001] The utility model relates to the field of medical experimental auxiliary equipment, in particular to a laboratory spinal cord injury modeler which is easy to position. Background Art

[0002] The laboratory spinal cord injury modeler uses the method of heavy object falling to replicate the spinal cord contusion model. Most of the existing spinal cord injury modelers have the disadvantage of inaccurate positioning, which makes the impact injury effect less than ideal. Although the rat spinal cord injury modeler provided by the Chinese utility model patent with application number CN201921914619.8 and the striking device for animal spinal cord injury modeling provided by the Chinese utility model patent with application number CN202121592502.X both provide the use of laser transmitters for positioning adjustment to achieve precise positioning, which is conducive to ensuring the position accuracy of the striking part in maintaining the spinal cord injury of the rat, thereby solving the problem of insufficient position accuracy of the existing spinal cord injury modeler in spinal cord injury. Although the laser positioning method can accurately position, in the process of operating the striking part to move, it is necessary to slowly adjust the positioning to position the striking part to the desired position. This adjustment method is time-consuming and laborious, and is not conducive to the experimenter to quickly adjust the positioning. Utility Model Content

[0003] In view of the above, it is necessary to provide a laboratory spinal cord injury modeler that is easy to position, which is convenient for the experimenter to quickly adjust the positioning, and has accurate positioning and good effect.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0005] A laboratory spinal cord injury modeler that is easy to position, comprising a base platform, an animal placement area is arranged on the top surface of the base platform, the four corners of the animal placement area have fixing columns for fixing animals, a positioning ruler is arranged on the base platform, a scale is arranged on the positioning ruler, and the two ends of the positioning ruler in the length direction are mounted above the animal placement area through positioning rods, the positioning rods are arranged on the opposite sides of the animal placement area, each positioning rod is slidably mounted on the base platform through a positioning slider, and a first slide rail for sliding the positioning slider is arranged on the base platform; a striking assembly is also arranged on the base platform, and the striking assembly includes a vertical telescopic rod, a transverse support rod, and a striking part, the The fixed end of the vertical telescopic rod is slidably installed on the base platform through a striking slider, and the sliding direction is parallel to the sliding direction of the positioning slider. The positioning slider is arranged between the striking slider and the animal placement area, and a first locking piece to prevent sliding is arranged at the connection between the striking slider and the base platform. A transverse support rod is slidably arranged at the telescopic end of the vertical telescopic rod, and the sliding direction is parallel to the length direction of the positioning ruler, and a second locking piece to prevent sliding of the transverse support rod is arranged at the sliding connection. A scale is also arranged on the transverse support rod, and its length direction is parallel to the positioning ruler. One end of the transverse support rod extends to the animal placement area, and a striking part for striking is arranged on the one end.

[0006] Preferably, the positioning rod is a telescopic structure.

[0007] Preferably, a scale is provided on one side of the first slide rail, and a positioning indicator needle is provided on the side of the positioning slider facing the scale.

[0008] Preferably, the scale on one side of the first slide rail is arranged between the positioning slider and the striking slider, and a positioning indicator needle is also arranged on the side of the striking slider facing the side where the scale is located.

[0009] Preferably, the positioning slide block is slidably mounted on a second slide rail, and the second slide rail is parallel to the first slide rail.

[0010] Preferably, the first locking member is installed on the positioning slide block and is a locking screw structure.

[0011] Preferably, a positioning ring is provided at the telescopic end of the vertical telescopic rod, the transverse support rod slides through the positioning ring, and the second locking member is mounted on the positioning ring.

[0012] Preferably, the striking part includes a vertical sleeve, a weight, a striking rod and a lap plate. The vertical sleeve is connected to the transverse support rod and is arranged in parallel with the vertical telescopic rod. A weight is movably installed in the vertical sleeve. A connecting rope is arranged on the top of the weight. The connecting rope extends out of the vertical sleeve through the upper end port of the vertical sleeve. A striking rod is movably arranged at the lower end port of the vertical sleeve. The striking rod is arranged directly below the weight, with its upper end located in the vertical sleeve and its lower end extending to the outside of the vertical sleeve. The shaft of the striking rod A limit plate is arranged on the top, and the limit plate is arranged outside the vertical sleeve, and is spaced apart from the lower end of the striking rod. The lap plate is arranged at the lower end of the vertical sleeve, and is in an "L"-shaped structure. The L-shaped vertical side of the lap plate is connected to the side wall of the vertical sleeve, and the L-shaped horizontal side is rotatably connected to the L-shaped vertical side. The rotation axis is perpendicular to the length direction of the vertical sleeve, and a torsion spring is arranged at the rotation connection. One end of the L-shaped horizontal side of the lap plate that is not connected to the L-shaped vertical side faces the center line of the vertical sleeve, and the limit plate is detachably lapped on the L-shaped horizontal side of the lap plate.

[0013] Preferably, an observation port is provided on the vertical sleeve, and the observation port is arranged above the striking rod, and a scale is provided on one side of the observation port.

[0014] Preferably, a striking piece is provided on the top of the striking rod, and the outer contour size of the striking piece is larger than the opening size of the pipe opening at the lower end of the vertical sleeve.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model places the animal to be tested in the animal placing area, and slides and positions it through the positioning ruler which can slide above the animal placing area, so that the striking component is conveniently positioned to the lateral position of the location of the mark to be struck on the animal to be tested, and the distance between the mark to be struck on the animal to be tested and one end of the striking component connected to the bottom plate platform positioned at the lateral position can be quickly known through the scale on the positioning ruler, so that the distance between one end of the striking part of the lateral support rod where the striking part is arranged and the vertical telescopic rod can be adjusted according to the measured distance, and then the longitudinal position of the location of the mark to be struck on the animal to be tested is positioned, so that the striking part is located directly above the location of the mark to be struck on the animal to be tested, thereby achieving the purpose of fast positioning of the striking part, improving the efficiency and accuracy of the adjustment and positioning, simplifying the operation process, saving time and labor, and having a good effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the utility model.

[0018] Figure 2 It is a three-dimensional diagram of the utility model, in which the positioning ruler is in a positioning state.

[0019] Figure 3It is a three-dimensional diagram of the utility model, in which the striking assembly moves to a position after being positioned by the positioning ruler.

[0020] Figure 4 It is a three-dimensional diagram of the utility model, in which the positioning ruler moves to one side before the striking assembly strikes.

[0021] Figure 5 It is a schematic diagram of the striking part of the utility model.

[0022] Figure 6 This is a flow chart of the striking process of the striking rod of the utility model. In the figure, (a) is a schematic diagram of the striking rod pushing away the L-shaped rod during the downward movement process, (b) is a schematic diagram of the striking rod striking after being separated from the L-shaped rod, and (c) is a schematic diagram of the striking rod pushing away the L-shaped rod when it is reset after the striking is completed.

[0023] Main component symbols

[0024] In the figure: bottom platform 1, animal placement area 1.1, fixed column 2, positioning ruler 3, positioning rod 4, positioning slide block 5, first slide rail 6, second slide rail 7, striking slide block 8, vertical telescopic rod 9, transverse support rod 10, striking part 11, vertical sleeve 11.1, heavy hammer 11.2, connecting rope 11.3, striking rod 11.4, limit plate 11.5, striking sheet 11.6, overlapping plate 11.7, positioning indicator needle 12, scale 13, first locking member 14.

[0025] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0026] See also Figure 1-6 In a preferred embodiment of the utility model, a laboratory spinal cord injury modeler that is easy to position includes a base platform 1, and the top surface of the base platform 1 is provided with an animal placement area 1.1. The four corners of the animal placement area 1.1 have fixing columns 2 for fixing the animal. After the animal's limbs are fixed with rope straps, the rope straps are tied to the fixing columns 2, so that the animal is fixed in the animal placement area 1.1.

[0027] The bottom plate platform 1 is provided with a positioning ruler 3, and the positioning ruler 3 is provided with a scale 13. The two ends of the positioning ruler 3 in the length direction are erected above the animal placement area 1.1 through positioning rods 4. The positioning rods 4 are arranged on opposite sides of the animal placement area 1.1. Each positioning rod 4 is slidably installed on the bottom plate platform 1 through a positioning slider 5. The bottom plate platform 1 is provided with a first slide rail 6 for the positioning slider 5 to slide. The positioning ruler 3 can slide back and forth on the animal placement area 1.1 by sliding the positioning slider 5 on the first slide rail 6, so as to move to the top of the animal to be tested placed in the animal placement area 1.1 by sliding, and can quickly locate to the location of the mark to be struck on the animal to be tested, and then the lateral position of the mark to be struck on the animal to be tested is known, and the scale 13 value displayed by the scale 13 on the positioning ruler 3 is used to know the longitudinal position of the mark to be struck on the animal to be tested, that is, the horizontal plane X direction and Y direction of the mark to be struck on the animal to be tested at the location, which lays a foundation for the subsequent positioning of the striking part 11 of the striking component. In this embodiment, taking into account that the experimental animals vary in weight, the positioning rod 4 is a telescopic structure, and the telescopic direction is the vertical direction. The height direction of the positioning ruler 3 can be adjusted by telescoping, so that the positioning ruler 3 can contact the experimental animal, and after positioning is completed, it can rise and slide away from the experimental animal to avoid affecting the striking operation of the striking component.

[0028] The bottom plate platform 1 is also provided with a striking assembly, which includes a vertical telescopic rod 9, a transverse support rod 10, and a striking portion 11. The fixed end of the vertical telescopic rod 9 is slidably mounted on the bottom plate platform 1 through a striking slider 8, and the sliding direction is parallel to the sliding direction of the positioning slider 5. Specifically, the positioning slider 5 is slidably mounted on the second slide rail 7, and the second slide rail 7 is parallel to the first slide rail 6. The positioning slider 5 is arranged between the striking slider 8 and the animal placement area 1.1 to prevent the positioning ruler 3 from interfering with the sliding of the striking assembly. A first locking piece 14 is arranged at the connection between the striking slider 8 and the base platform 1 to prevent sliding. A transverse support rod 10 is slidingly arranged at the telescopic end of the vertical telescopic rod 9, and the sliding direction is parallel to the length direction of the positioning ruler 3. A second locking piece is arranged at the sliding connection to prevent the transverse support rod 10 from sliding. A scale 13 is also arranged on the transverse support rod 10, and its length direction is parallel to the positioning ruler 3. One end of the transverse support rod 10 extends to the animal placement area 1.1, and a striking part 11 for striking is arranged on the one end.

[0029] The striking assembly of the utility model can slide on the bottom plate platform 1 through the striking slider 8, so as to move the striking part 11 to the lateral position positioned by the positioning ruler 3, and the striking part 11 is installed on the lateral support rod 10, and the lateral support rod 10 can move relative to the vertical telescopic rod 9 along the length direction of the positioning ruler 3, thereby driving the striking part 11 after the lateral positioning to move laterally along the length direction of the positioning ruler 3 again, so as to move to the position of the mark to be struck on the experimental animal indicated by the positioning ruler 3, wherein the degree of lateral movement of the striking part 11 is adjusted based on the distance displayed by the positioning ruler 3, that is, by checking the scale 13 value displayed on the positioning ruler 3, the sliding degree of the lateral support rod 10 is adjusted so that the scale 13 value on the lateral support rod 10 matches the scale 13 value displayed on the positioning ruler 3, so that the method of assisting positioning by the scale 13 value is much faster and more accurate than the blind positioning method, and the efficiency is greatly improved. After the horizontal and vertical positions are positioned, the telescopic degree of the vertical telescopic rod 9 is adjusted, thereby adjusting the height position of the striking part 11 to simulate different degrees of damage.

[0030] In this embodiment, preferably, a scale 13 is provided on one side of the first slide rail 6, and a positioning indicator needle 12 is provided on the side of the positioning slider 5 facing the scale 13, so as to accurately obtain the lateral position of the positioning ruler 3 by the indication of the positioning indicator needle 12, thereby facilitating the rapid movement of the striking assembly. Further, the scale 13 on one side of the first slide rail 6 is provided between the positioning slider 5 and the striking slider 8, and a positioning indicator needle 12 is also provided on the side of the striking slider 8 facing the scale 13, that is, when the striking assembly moves, the positioning indicator needle 12 on the striking slider 8 moves to the position indicated by the positioning indicator needle 12 on the positioning slider 5, so that the positioning is more accurate.

[0031] In the present invention, after the striking assembly is moved and positioned, it is fixed by the first locking member 14 and the second locking member to prevent slipping during the striking process and causing striking errors. In this embodiment, the first locking member 14 is installed on the positioning slider 5, which is a locking screw structure. Furthermore, a positioning ring is provided at the telescopic end of the vertical telescopic rod 9, and the transverse support rod 10 slides through the positioning ring, and the second locking member is installed on the positioning ring, which is also a locking screw structure.

[0032] In this embodiment, the striking part 11 includes a vertical sleeve 11.1, a weight 11.2, a striking rod 11.4 and a lap plate 11.7. The vertical sleeve 11.1 is connected to the transverse support rod 10, which is arranged in parallel with the vertical telescopic rod 9. The vertical sleeve 11.1 is movably installed with a weight 11.2, and the top of the weight 11.2 is provided with a connecting rope 11.3, and the connecting rope 11.3 extends out of the vertical sleeve 11.1 through the upper end port of the vertical sleeve 11.1. A striking rod 11.4 is movably provided at the lower end port of the vertical sleeve 11.1, and the striking rod 11.4 is arranged directly below the weight 11.2, and its upper end is located in the vertical sleeve 11.1, and the lower end extends to the vertical sleeve 11.1. .1, a limit plate 11.5 is arranged on the rod body of the striking rod 11.4, and the limit plate 11.5 is arranged outside the vertical sleeve 11.1, and is spaced apart from the lower end of the striking rod 11.4. The lap plate 11.7 is arranged at the lower end of the vertical sleeve 11.1, and is in an "L"-shaped structure. The L-shaped vertical side of the lap plate 11.7 is connected to the side wall of the vertical sleeve 11.1, and the L-shaped horizontal side is rotatably connected to the L-shaped vertical side, and the rotation axis is perpendicular to the length direction of the vertical sleeve 11.1, and a torsion spring is arranged at the rotation connection. The end of the L-shaped horizontal side of the lap plate 11.7 that is not connected to the L-shaped vertical side faces the center line of the vertical sleeve 11.1, and the limit plate 11.5 is detachably lapped on the L-shaped horizontal side of the lap plate 11.7.

[0033] The striking part 11 of this embodiment is a hammer 11.2 that hits the striking rod 11.4 by free fall, so that the striking rod 11.4 strikes the experimental animal in the manner of hitting the experimental animal to cause spinal cord injury, thereby forming a spinal cord contusion model.

[0034] Specifically, the vertical sleeve 11.1 of the present embodiment serves as a movable guide space for the weight 11.2 and the striking rod 11.4. The weight 11.2 is installed in the vertical sleeve 11.1 through a connecting rope 11.3. The weight 11.2 can be reset and its distance from the upper end of the striking rod 11.4 can be adjusted by pulling the connecting rope 11.3. In order to facilitate the adjustment and viewing of the position of the weight 11.2, an observation port is preferably provided on the vertical sleeve 11.1. The observation port is provided above the striking rod 11.4, and a scale 13 is provided on one side thereof. The weight 11.2 in the vertical sleeve 11.1 can be viewed through the observation port. In addition, the setting of the scale 13 facilitates the adjustment of the initial position of the weight 11.2.

[0035] The striking rod 11.4 is arranged directly below the heavy hammer 11.2 and can be struck by the heavy hammer 11.2. A part of the striking rod 11.4 is arranged in the vertical sleeve 11.1, and a part of the striking rod 11.4 is arranged outside the vertical sleeve 11.1. When struck by the heavy hammer 11.2, the striking rod 11.4 will not completely separate from the vertical sleeve 11.1, and the striking rod 11.4 has no automatic retraction restoring force, and the striking rod 11.4 will not automatically retract into the vertical sleeve 11.1, thereby not causing the blood and tissues produced by the struck animal to retract into the vertical sleeve 11.1, avoiding blood clotting in the vertical sleeve 11.1 and causing resistance, thereby reducing large errors in the modeling process caused by this. Therefore, after the striking is completed, only the part of the striking rod 11.4 located outside the vertical sleeve 11.1 needs to be cleaned, saving cleaning time and at the same time, the accuracy of the modeling is higher. In order to prevent the striking rod 11.4 from sliding out of the vertical sleeve 11.1, a striking plate 11.6 is preferably provided on the top of the striking rod 11.4, and the outer contour size of the striking plate 11.6 is larger than the opening size of the lower end pipe mouth of the vertical sleeve 11.1. The striking plate 11.6 is provided to limit the striking rod 11.4 from being set in the vertical sleeve 11.1, and facilitate the weight 11.2 to act on the striking rod 11.4.

[0036] The striking rod 11.4 of the utility model is movably arranged in the vertical sleeve 11.1. The striking rod 11.4 is initially positioned by overlapping the limiting plate 11.5 on the overlapping plate 11.7 to prevent the striking rod 11.4 from falling freely due to gravity and being unable to maintain a stable placement state. The overlapping plate 11.7 of the utility model is L-shaped, and its L-shaped horizontal side contacts the limiting plate 11.5 to support the striking rod 11.4. The striking rod 11.4 can rotate relative to the L-shaped vertical side. When the striking rod 11.4 is acted upon by the heavy hammer 11.2, the striking rod 11.4 will press down the L-shaped horizontal side, so that the L-shaped horizontal side rotates relative to the L-shaped vertical side until the limit plate 11.5 is separated from the lap plate 11.7. The lap plate 11.7 is reset under the action of the torsion spring and is not in contact with the striking rod 11.4. The striking rod 11.4 slides downward without restriction until the top of the striking rod 11.4 is restricted by the vertical sleeve 11.1. After the striking rod 11.4 is cleaned, it slides upward to reset, and the limiting plate 11.5 will push the L-shaped horizontal edge of the lap plate 11.7 to rotate upward to the edge of the limiting plate 11.5, and the limiting plate 11.5 can go over the lap plate 11.7 upward, and the L-shaped horizontal edge automatically resets after the lap plate 11.7 does not contact the limiting plate 11.5, and the striking rod 11.4 is released or moved downward, and the striking rod 11.4 can move downward until the limiting plate 11.5 overlaps the lap plate 11.7, that is, the automatic reset of the striking rod 11.4 is completed. In addition, the setting of the limiting plate 11.5 also shields the part of the striking rod 11.4 located above the limiting plate 11.5 to another extent, reducing the degree of blood and tissue adhesion to the striking rod 11.4.

[0037] In addition to the above-mentioned method, the striking assembly of the present invention can also be a method in which the striking rod 11.4 is fixed by the electromagnet magnetic attraction, and then the striking rod 11.4 is free to fall when the power is off to achieve striking. This is a prior art and will not be described in detail here.

[0038] The operating principle of the utility model is as follows:

[0039] The experimental animal is fixed in the animal placement area 1.1, the striking position is marked on the experimental animal, the positioning ruler 3 is pulled so that the positioning ruler 3 moves above the experimental animal to the marked position, and the positioning ruler 3 is pressed down so that the positioning ruler 3 contacts the experimental animal. After the positioning ruler 3 contacts the marked position, the position of the positioning slider 5 is the position that the striking slider 8 should reach. This position is determined by the positioning indicator needle 12. At the same time, check the scale 13 value that the mark on the positioning ruler 3 is opposite to. Then, move the striking assembly so that the positioning indicator needle 12 on the striking slider 8 reaches the position indicated by the positioning indicator needle 12 on the positioning slider 5, tighten the first locking piece 14, and slide the transverse support rod 10 so that the mark on it The scale 13 value is adapted to the scale 13 value displayed on the positioning ruler 3, and then the second locking piece is tightened. Then the positioning ruler 3 is moved away from the experimental animal, and then the longitudinal telescopic rod is adjusted so that the lower end of the striking rod 11.4 is at a distance required by the experiment from the marked position of the experimental animal. Then, the position of the heavy hammer 11.2 is adjusted so that the distance between the heavy hammer 11.2 and the top of the striking rod 11.4 is at the required height of the experiment. After the adjustment is completed, the connecting rope 11.3 is loosened, and the heavy hammer 11.2 falls freely and hits the striking piece 11.6 at the top of the striking rod 11.4. Under the action of the heavy hammer 11.2, the striking rod 11.4 overcomes the limiting effect of the lap plate 11.7 and falls to the marked position of the experimental animal to achieve injury modeling.

[0040] Finally, it should be noted that the settings of the scale values ​​13 on the positioning ruler 3 and the horizontal support rod 10 of the utility model are compatible, and the vertical telescopic rod 9 can be a manual telescopic structure or an electric telescopic structure, and the height position of the striking rod 11.4 can also be adjusted by setting the scale 13 thereon.

[0041] The above description is a detailed description of the preferred feasible embodiment of the utility model, but the embodiment is not used to limit the scope of the patent application of the utility model. All equivalent changes or modified changes completed under the technical spirit suggested by the utility model should fall within the patent scope covered by the utility model.

Claims

1. A laboratory spinal cord injury modeler that is easy to position, comprising a base platform, the top surface of the base platform is provided with an animal placement area, and the four corners of the animal placement area are provided with fixing columns for fixing animals, characterized in that: The bottom plate platform is provided with a positioning ruler, the positioning ruler is provided with a scale, and the two ends of the positioning ruler in the length direction are mounted above the animal placement area through positioning rods, the positioning rods are arranged on opposite sides of the animal placement area, each positioning rod is slidably mounted on the bottom plate platform through a positioning slider, and the bottom plate platform is provided with a first slide rail for the positioning slider to slide; the bottom plate platform is also provided with a striking assembly, the striking assembly includes a vertical telescopic rod, a transverse support rod, and a striking part, the fixed end of the vertical telescopic rod is slidably mounted on the bottom plate platform through a striking slider, and the sliding direction is parallel to The sliding direction of the positioning slider, the positioning slider is arranged between the striking slider and the animal placement area, a first locking piece to prevent sliding is arranged at the connection between the striking slider and the bottom plate platform, a transverse support rod is slidably arranged at the telescopic end of the vertical telescopic rod, the sliding direction is parallel to the length direction of the positioning ruler, and a second locking piece to prevent sliding of the transverse support rod is arranged at the sliding connection, a scale is also arranged on the transverse support rod, and its length direction is parallel to the positioning ruler, one end of the transverse support rod extends to the animal placement area, and a striking part for striking is arranged on the one end.

2. A laboratory spinal cord injury modeler that is easy to position as claimed in claim 1, characterized in that: The positioning rod is a telescopic structure.

3. A laboratory spinal cord injury modeler that is easy to position as claimed in claim 1, characterized in that: A scale is arranged on one side of the first slide rail, and a positioning indicator needle is arranged on the side of the positioning slide block facing the scale.

4. A laboratory spinal cord injury modeler that is easy to position as claimed in claim 3, characterized in that: The scale on one side of the first slide rail is arranged between the positioning slider and the striking slider, and a positioning indicator needle is also arranged on the side of the striking slider facing the scale.

5. The laboratory spinal cord injury modeler that is easy to position as claimed in claim 1, characterized in that: The positioning slide block is slidably mounted on a second slide rail, and the second slide rail is parallel to the first slide rail.

6. The laboratory spinal cord injury modeler that is easy to position as claimed in claim 1, characterized in that: The first locking member is installed on the positioning slide block and is a locking screw structure.

7. The laboratory spinal cord injury modeler that is easy to position as claimed in claim 1, characterized in that: The telescopic end of the vertical telescopic rod is provided with a positioning ring, the transverse support rod slides through the positioning ring, and the second locking member is installed on the positioning ring.

8. The laboratory spinal cord injury modeler that is easy to position as claimed in claim 1, characterized in that: The striking part includes a vertical sleeve, a weight, a striking rod and a lap plate. The vertical sleeve is connected to the transverse support rod and is arranged in parallel with the vertical telescopic rod. A weight is movably installed in the vertical sleeve. A connecting rope is arranged on the top of the weight. The connecting rope extends out of the vertical sleeve through the upper end port of the vertical sleeve. A striking rod is movably arranged at the lower end port of the vertical sleeve. The striking rod is arranged directly below the weight, with its upper end located in the vertical sleeve and its lower end extending to the outside of the vertical sleeve. A limit plate is provided, and the limit plate is arranged outside the vertical sleeve, and is spaced apart from the lower end of the striking rod. The lap plate is arranged at the lower end of the vertical sleeve, and is in an "L"-shaped structure. The L-shaped vertical side of the lap plate is connected to the side wall of the vertical sleeve, and the L-shaped horizontal side is rotatably connected to the L-shaped vertical side. The rotation axis is perpendicular to the length direction of the vertical sleeve, and a torsion spring is provided at the rotation connection. One end of the L-shaped horizontal side of the lap plate that is not connected to the L-shaped vertical side faces the center line of the vertical sleeve, and the limit plate is detachably lapped on the L-shaped horizontal side of the lap plate.

9. A laboratory spinal cord injury modeler that is easy to position as claimed in claim 8, characterized in that: The vertical sleeve is provided with an observation port, which is arranged above the striking rod and has a scale on one side thereof.

10. The laboratory spinal cord injury modeler that is easy to position as claimed in claim 8, characterized in that: A striking piece is arranged on the top of the striking rod, and the outer contour size of the striking piece is larger than the opening size of the pipe opening at the lower end of the vertical sleeve.

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