Damage testing device and damage testing experiment system

Abstract

The utility model relates to a damage test device and a damage test experimental system.The damage test device comprises a base, a test assembly and a supporting assembly, the base is provided with a mounting surface for mounting animal fixing equipment, the mounting surface is located in a test area of the test assembly, the supporting assembly is arranged on the base, and the test assembly is located in the test area of the test assembly. The testing assembly comprises a guide structure, an impact part and a damage contact part, the guide structure is adjustably mounted above the base through the supporting assembly and extends in the length direction of the guide structure, scale marks are distributed on the side wall of the guide structure in the length direction of the guide structure, and the impact part is movably arranged in the guide structure; the damage contact part is arranged at the end, close to the base, of the guide structure, at least part of the damage contact part is located on the moving stroke of the impact part, and the other part extends out of the guide structure. The injury test device and the injury test experiment system provided by the utility model solve the problem of poor experiment reproducibility of the existing spinal cord injury and craniocerebral injury device.

Description

Technical Field

[0001] The utility model relates to the technical field of medical experimental equipment, in particular to a damage testing device and a damage testing experimental system. Background Art

[0002] Spinal cord injury will lead to sensory and motor dysfunction below the injury level. Since the spinal cord cannot regenerate after injury, research on regeneration and repair after spinal cord injury is a major challenge for neuroscientists and one of the cutting-edge topics in the field of neuroscience.

[0003] To conduct research on spinal cord injury regeneration, it is first necessary to prepare a spinal cord injury animal model. The current common spinal cord injury and craniocerebral injury devices cannot guarantee that the force exerted by the direct injury site contactor on the experimental animal is consistent in each experiment, resulting in poor experimental reproducibility. Utility Model Content

[0004] The main purpose of the utility model is to provide an injury testing device and an injury testing experimental system, aiming to solve the problem of poor experimental reproducibility of existing spinal cord injury and craniocerebral injury devices.

[0005] To achieve the above-mentioned purpose, the utility model proposes an injury testing device, including a base, a test assembly and a support assembly, the base having a mounting surface for installing an animal fixation device, the mounting surface being within the test area of ​​the test assembly, the support assembly being arranged on the base, the test assembly including a guide structure, an impact part and an injury contact part, the guide structure being adjustably mounted above the base through the support assembly, the guide structure extending along its length direction, and the side walls of the guide structure being provided with scale lines along its length direction, the impact part being movably arranged in the guide structure, the injury contact part being arranged at one end of the guide structure close to the base, the injury contact part being at least partially located on the moving stroke of the impact part, and the other part extending from the guide structure.

[0006] According to some embodiments of the present invention, a plurality of observation holes are opened on the side of the guide structure, and each of the observation holes is arranged in a one-to-one correspondence with the scale line.

[0007] According to some embodiments of the present invention, the guide structure is made of a transparent material.

[0008] According to some embodiments of the present invention, the base is provided with a slide groove along the y direction, and the support assembly is movably arranged on the slide groove.

[0009] According to some embodiments of the present invention, the support assembly includes a first connecting part and a second connecting part, the first connecting part is movably arranged on the slide groove, the guide structure is connected to the first connecting part through the second connecting part, and the guide structure is movably arranged in the z direction relative to the first connecting part.

[0010] According to some embodiments of the present invention, the second connection portion is movably mounted on the first connection portion along the z direction, and the guide structure is movably mounted on the second connection portion along the x direction.

[0011] According to some embodiments of the present invention, the guide structure is rotatably mounted on the second connecting portion, and the axis direction of the guide structure's rotation is perpendicular to the extension direction of the second connecting portion.

[0012] According to some embodiments of the present invention, the test assembly further includes a pulling rope, one end of which is connected to the guide structure, and the other end of which is connected to the impact part.

[0013] According to some embodiments of the present invention, the impact portion and the damage contact portion are both detachably connected to the guide structure.

[0014] In addition, the present invention also provides an injury testing experimental system, comprising an animal fixing device and an injury testing apparatus as described in any one of the above items, wherein the animal fixing device is detachably mounted on the base.

[0015] The utility model has at least the following beneficial effects:

[0016] In the present invention, the base has a mounting surface for mounting an animal fixture, the mounting surface being within the testing area of ​​the test assembly. The support assembly is mounted on the base, and the test assembly includes a guide structure, a striker, and a damage contact portion. The guide structure is adjustably mounted above the base via the support assembly, the guide structure extending along its length, and the sidewalls of the guide structure are provided with graduated lines along its length. The striker is movably disposed within the guide structure, and the damage contact portion is disposed at one end of the guide structure near the base, the damage contact portion being at least partially located within the travel of the striker, and the other portion extending from the guide structure. The experimenter first secures the experimental animal to the animal fixture, then mounts the animal fixture on the base, then adjusts and moves the guide structure above the animal fixture so that the damage contact portion contacts the part to be tested of the experimental animal. Finally, the striker is raised to a specified height, and the striker falls along the guide structure and strikes the damage contact portion, causing the damage contact portion to exert a force on the part to be tested of the experimental animal. The present application provides a guide structure with scale lines and allows the impact part to fall along the guide structure, so that the height of the impact part and the impact position with the injury contact part remain consistent in each experiment, thereby ensuring that the force applied by the injury contact part to the tested part of the experimental animal is consistent. By controlling variables to quantify the damage, the experiment is guaranteed to have good reproducibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A structural schematic diagram of a damage testing device provided in an embodiment of the utility model.

[0019] Description of reference numerals:

[0020] 100-damage test device; 1-base; 2-test assembly; 21-guide structure; 211-scale line; 212-observation hole; 22-impact part; 23-damage contact part; 24-pulling rope; 3-support assembly; 31-first connecting part; 32-second connecting part. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0024] The utility model provides a damage testing device and a damage testing experimental system. Figure 1 This is a specific embodiment of a damage testing device provided by the utility model.

[0025] like Figure 1As shown, an embodiment of the present invention provides an injury testing device 100, comprising a base 1, a test assembly 2 and a support assembly 3, wherein the base 1 has a mounting surface for installing an animal fixation device, and the mounting surface is within the test area of ​​the test assembly 2, the support assembly 3 is arranged on the base 1, and the test assembly 2 comprises a guide structure 21, an impact portion 22 and an injury contact portion 23, the guide structure 21 is adjustably mounted above the base 1 through the support assembly 3, the guide structure 21 extends along its length direction, and the side wall of the guide structure 21 is provided with scale lines 211 along its length direction, the impact portion 22 is movably arranged in the guide structure 21, and the injury contact portion 23 is arranged at one end of the guide structure 21 close to the base 1, the injury contact portion 23 is at least partially located on the moving stroke of the impact portion 22, and the other part extends from the guide structure 21.

[0026] In the present utility model, the base 1 has a mounting surface for installing an animal fixation device, and the mounting surface is located in the test area of ​​the test component 2. The support component 3 is arranged on the base 1, and the test component 2 includes a guide structure 21, an impact part 22 and a damage contact part 23. The guide structure 21 can be adjustably installed above the base 1 through the support component 3. The guide structure 21 extends along its length direction, and the side wall of the guide structure 21 is provided with scale lines 211 along its length direction. The impact part 22 is movably arranged in the guide structure 21, and the damage contact part 23 is arranged at one end of the guide structure 21 close to the base 1. The damage contact part 23 is at least partially located on the moving stroke of the impact part 22, and the other part extends from the guide structure 21. The experimenter first fixes the experimental animal on the animal fixing device, then installs the animal fixing device on the base 1, and then adjusts and moves the guide structure 21 to the top of the animal fixing device, so that the damage contact part 23 contacts the part to be tested of the experimental animal, and finally lifts the impact part 22 to a specified height, so that the impact part 22 falls along the guide structure 21 and hits the damage contact part 23, so that the damage contact part 23 applies a force to the part to be tested of the experimental animal. The present application provides a guide structure 21 with scale lines 211, and allows the impact part 22 to fall along the guide structure 21, so that the height of the impact part 22 and the impact position with the damage contact part 23 remain consistent in each experiment, thereby ensuring that the force applied by the damage contact part 23 to the part to be tested of the experimental animal is consistent, and by controlling variables to quantify damage, it is ensured that the experiment has good reproducibility.

[0027] It should be noted that, in some embodiments, the impact portion 22 and the injury contact portion 23 are both detachably connected to the guide structure 21. Specifically, the impact portion 22 is a weight, and the experimenter can replace the impact portion 22 with a different weight or change the height of the impact portion 22, so that the force applied to the injury contact portion 23 by the impact portion 22 is different, thereby adjusting the force applied by the injury contact portion 23 to the test part of the experimental animal. The experimenter can also replace the injury contact portion 23 with a different contact size, thereby changing the pressure of the injury contact portion 23 on the test part of the experimental animal, thereby changing the degree of injury.

[0028] In order to enable the experimenter to drive the impact part 22 to the required height more quickly, in some embodiments, as shown in FIG. Figure 1 As shown, the guide structure 21 is provided with a plurality of observation holes 212 on its side, each of which corresponds to the scale lines 211. This arrangement allows the experimenter to observe the current height of the impact part 22 through the plurality of observation holes 212 and drive the impact part 22 to the desired height, thereby improving the experimental efficiency.

[0029] Furthermore, in some embodiments, the guide structure 21 is made of a transparent material. With this configuration, the experimenter can directly observe the height of the impact portion 22 inside the transparent guide structure 21 and drive the impact portion 22 to the desired height accordingly. Furthermore, the scale lines 211 on the transparent guide structure 21 are more visible, allowing the experimenter to drive the impact portion 22 to the desired height more quickly, thereby improving experimental efficiency.

[0030] It should be noted that the above two technical features can be set either one or at the same time.

[0031] In order to expand the test area of ​​the test assembly 2 so that the injury testing device 100 can be adapted to experimental animals of more sizes, in some embodiments, such as Figure 1 As shown, the base 1 has a chute along the y-direction, and the support assembly 3 is movably mounted on the chute. With this arrangement, since the guide structure 21 is connected to the support assembly 3, the support assembly 3 movably mounted on the chute can drive the guide structure 21 to move in the y-direction, thereby expanding the testing area of ​​the test assembly 2. On the one hand, it can adapt to experimental animals of more sizes, and on the other hand, it can perform damage tests on more parts of experimental animals.

[0032] Furthermore, the specific structure of the support assembly 3 is not limited, as long as the guide structure 21 is installed on the base 1 through the support assembly 3. For example, in some embodiments, Figure 1As shown, the support assembly 3 includes a first connecting portion 31 and a second connecting portion 32. The first connecting portion 31 is movably mounted on the slide slot. The guide structure 21 is connected to the first connecting portion 31 via the second connecting portion 32. The guide structure 21 is movable relative to the first connecting portion 31 in the z-direction. This arrangement allows the guide structure 21 to accommodate experimental animals of different heights and allows injury testing to be performed on more parts of the experimental animals.

[0033] Furthermore, in some embodiments, Figure 1 As shown, the second connecting portion 32 is movably mounted on the first connecting portion 31 along the z-direction, and the guide structure 21 is movably mounted on the second connecting portion 32 along the x-direction. This arrangement allows the experimenter to adjust the position of the guide structure 21 in the x-direction, y-direction, and z-direction, greatly expanding the testing area of ​​the test assembly 2 and improving the applicability of the damage testing device 100.

[0034] Since the surface of the experimental animal is uneven, in order to ensure that the contact area of ​​the injury contact portion 23 with different parts of different experimental animals is consistent, in some embodiments, such as Figure 1 As shown, the guide structure 21 is rotatably mounted on the second connecting portion 32, with the axis of rotation of the guide structure 21 being perpendicular to the extension direction of the second connecting portion 32. With this arrangement, the experimenter can rotate the guide structure 21 to rotate the injury contact portion 23, allowing the injury contact portion 23 to conform to the injury site to be tested on the experimental animal, ensuring that the contact area is substantially consistent with the cross-sectional area of ​​the injury contact portion 23, thereby controlling variables and reducing experimental errors.

[0035] In order to facilitate the experimenter to drive the impact part 22 to the required height, in some embodiments, such as Figure 1 As shown, the test assembly 2 further includes a pull cord 24, one end of which is connected to the guide structure 21, and the other end is connected to the impact part 22. This arrangement allows the experimenter to hold the pull cord 24 to drive the impact part 22 to the desired height, thereby improving experimental efficiency. On the other hand, the pull cord 24 is connected to the guide structure 21, so that the experimenter does not need to first remove the impact part 22 from the guide structure 21 during the next experiment, and can drive the impact part 22 to the desired height more quickly, thereby improving experimental efficiency.

[0036] In addition, the utility model also provides an injury testing experimental system, including an animal fixation device and the injury testing device 100, the injury testing device 100 includes a base 1 and a test component 2, the base 1 has a mounting surface for installing the animal fixation device, and the mounting surface is within the test area of ​​the test component 2, the support component 3 is arranged on the base 1, and the test component 2 includes a guide structure 21, an impact part 22 and a damage contact part 23, the guide structure 21 can be adjustably installed above the base 1 through the support component 3, the guide structure 21 extends along its length direction, and the side wall of the guide structure 21 is provided with scale lines 211 along its length direction, the impact part 22 is movably arranged in the guide structure 21, and the damage contact part 23 is arranged at one end of the guide structure 21 close to the base 1, the damage contact part 23 is at least partially located on the moving stroke of the impact part 22, and the other part extends from the guide structure 21.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A damage testing device, characterized in that: The invention comprises a base, a test assembly and a support assembly, wherein the base has a mounting surface for installing an animal fixing device, and the mounting surface is located in a test area of ​​the test assembly. The support assembly is arranged on the base, and the test assembly comprises a guide structure, an impact part and an injury contact part. The guide structure is adjustably mounted above the base through the support assembly, the guide structure extends along its length direction, and the side wall of the guide structure is provided with scale lines along its length direction. The impact part is movably arranged in the guide structure, and the injury contact part is arranged at one end of the guide structure close to the base. The injury contact part is at least partially located on the moving stroke of the impact part, and the other part extends from the guide structure.

2. The damage testing device according to claim 1, wherein: A plurality of observation holes are provided on the side of the guide structure, and each of the observation holes is arranged in one-to-one correspondence with the scale lines.

3. The damage testing device according to claim 1, wherein: The guide structure is made of transparent material.

4. The damage testing device according to claim 1, wherein: The base is provided with a slide groove along the y direction, and the support assembly is movably arranged on the slide groove.

5. The damage testing device according to claim 4, wherein: The support assembly includes a first connecting portion and a second connecting portion, the first connecting portion is movably arranged on the slide groove, the guide structure is connected to the first connecting portion through the second connecting portion, and the guide structure is movably arranged relative to the first connecting portion in the z direction.

6. The damage testing device according to claim 5, wherein: The second connection portion is movably mounted on the first connection portion along the z direction, and the guide structure is movably mounted on the second connection portion along the x direction.

7. The damage testing device according to claim 5, wherein: The guide structure is rotatably mounted on the second connecting portion, and the axis direction of the guide structure's rotation is perpendicular to the extending direction of the second connecting portion.

8. The damage testing device according to claim 1, wherein: The test assembly further includes a pulling rope, one end of which is connected to the guide structure, and the other end of which is connected to the impact portion.

9. The damage testing device according to claim 1, wherein: The impact portion and the damage contact portion are both detachably connected to the guide structure.

10. A damage test experimental system, characterized in that: The invention comprises an animal fixing device and the injury testing device according to any one of claims 1 to 9, wherein the animal fixing device is detachably mounted on the base.

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