Appliance for establishing animal blood vessel pulling injury

Abstract

The utility model relates to an appliance for establishing animal blood vessel traction strain, and relates to the technical field of simulation of traction strain, the appliance comprises a supporting part, a force application part and a clamping part, one end of a threaded column force application part is installed on the threaded column supporting part, the other end of the threaded column force application part is detachably connected with a gear device, and the threaded column gear device abuts against an animal; the threaded column clamping part is arranged on one side of the force application part and used for clamping animal blood vessels, and the threaded column force application part applies force towards the threaded column clamping part. The method has the effect of effectively reducing the labor cost.

Description

Technical Field

[0001] This application relates to the technical field of simulating traction injuries, and in particular to an apparatus for creating vascular traction injuries in animals. Background Technology

[0002] Traumatic cerebrovascular injury (TCVI) is a cerebrovascular injury secondary to head and neck trauma, with high mortality and disability rates. If not treated promptly, it can lead to serious complications such as cerebral infarction, cerebral hemorrhage, and local hematoma formation, significantly impacting patient prognosis. TCVI is caused by various mechanisms including impact, traction (traction injury), and cutting, and its pathological mechanisms are complex and not yet fully understood. Establishing reliable animal models facilitates mechanistic research, thereby reducing mortality and disability rates in TCVI patients.

[0003] In the actual simulation of animal blood vessel traction injury, since it is necessary to fix the animal and apply traction force to the animal blood vessels at the same time, if manual operation is used, at least 2 operators are required, which results in high labor costs. Utility Model Content

[0004] To reduce labor costs, this application provides an apparatus for creating vascular traction injuries in animals.

[0005] This application provides an apparatus for creating vascular traction injuries in animals, employing the following technical solution:

[0006] An instrument for tracing vascular traction injuries in animals includes a support part, a force-applying part, and a clamping part. One end of the force-applying part is installed on the support part, and the other end of the force-applying part is detachably connected to a stop device, which abuts against the animal. The clamping part is located on one side of the force-applying part and is used to clamp the animal's blood vessel, with the force-applying part applying force toward the clamping part.

[0007] By adopting the above technical solution, the operator installs the force-applying part on the support part and makes the stopper abut against the animal's body. Then, the force-applying part applies force towards the clamping part, causing the clamping part to move the animal's blood vessel, simulating the situation where the animal's blood vessel is subjected to a tensile force. Before applying force in the experiment, the stopper abuts against the animal's body, which can effectively restrict the animal's position and make it easier for the operator to clamp the blood vessel. After removing the stopper, it does not hinder the animal's movement or shaking after being subjected to force during the experiment. Moreover, only one operator is needed to complete the above process, which effectively reduces labor costs.

[0008] Preferably, a threaded post is fixedly connected to one side of the stop, and a nut is threadedly connected to the threaded post after it is inserted into the force-applying part.

[0009] By adopting the above technical solution, on the one hand, the position of the stopper relative to the force-applying part can be limited by the threaded engagement of the threaded column and the nut; on the other hand, the operator can change the position of the stopper relative to the force-applying part according to the animal or object being contacted, thus making it applicable to more experimental situations.

[0010] Preferably, one side of the stop is provided with multiple limiting protrusions, which abut against the animal.

[0011] By adopting the above technical solution, the friction between the stopper and the animal is increased by the limiting convex pattern, which can effectively increase the stability of the stopper.

[0012] Preferably, the force-applying part includes a limiting tube, an elastic element, and a force-applying rod. The stop device is installed at one end of the limiting tube, the elastic element is disposed at the end of the limiting tube away from the stop device, one end of the force-applying rod extends into the limiting tube and passes through the elastic element, and the other end of the force-applying rod extends out of the limiting tube.

[0013] The end of the limiting tube near the force-applying rod is installed on the support part, the clamping part is disposed on the side wall of the limiting tube, and the end of the force-applying rod extending into the limiting tube applies force toward the clamping part.

[0014] By adopting the above technical solution, the operator can pull the force-applying rod to store force in the elastic element and then apply force towards the clamping part, which can simulate the situation of traction injury to animal blood vessels. During the above process, the stop device is always in contact with the animal, which can effectively limit the position of the device for creating traction injury to animal blood vessels.

[0015] Preferably, the limiting tube has multiple limiting holes at one end near the stop, and the threaded post is inserted into one of the limiting holes.

[0016] By adopting the above technical solution, the operator can insert the threaded post into the appropriate position of the limiting hole according to the animal or item to be approached, adjust the angle of the stopper relative to the limiting tube, and then tighten the nut to achieve the purpose of fixing the stopper.

[0017] Preferably, the inner wall of the limiting tube is provided with a limiting protrusion, and the force rod is provided with a plurality of teeth on one side corresponding to the limiting protrusion, one of the teeth being engaged with the limiting protrusion.

[0018] By adopting the above technical solution, the position of the force-applying rod relative to the limiting tube can be effectively limited through the snap-fit ​​engagement of the toothed limiting protrusion, thereby reducing the probability that the force-applying rod will apply force toward the clamping part when not in an experimental state.

[0019] Preferably, the clamping part includes a force-receiving clamp and a fixing clamp, the force-receiving clamp and the fixing clamp are identically configured, the fixing clamp is fixedly connected to the limiting tube, one end of the force-receiving clamp extends into the limiting tube, and the force-receiving clamp can move along the limiting tube.

[0020] By adopting the above technical solution, the animal blood vessel is clamped by both a fixing clamp and a force clamp. The fixing clamp is fixed in position on the animal blood vessel, and the force clamp moves the clamped animal blood vessel after being subjected to force, thereby simulating the situation where the animal blood vessel is subjected to a tensile force.

[0021] Preferably, the support includes a support frame and a mounting base, the mounting base is mounted on the support frame, and the force-applying part is mounted on the mounting base.

[0022] By adopting the above technical solution, the position of the force-applying part relative to the support frame is restricted by the mounting seat, thereby raising the height of the force-applying part by the support frame, which facilitates the establishment of traction injury on animal blood vessels and achieves the purpose of simulating the traction force on animal blood vessels.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The operator installs the force-applying part on the support part and makes the stopper abut against the animal's body. Then, the force-applying part applies force towards the clamping part, causing the clamping part to move the animal's blood vessels, simulating the situation where the animal's blood vessels are subjected to a strain. Before the experiment, the stopper abuts against the animal's body, which effectively restricts the animal's position. The stopper is then removed, and the animal's movement is not hindered during the experiment after the force is applied. Moreover, only one operator is needed to complete the above process, effectively reducing labor costs.

[0025] 2. On the one hand, the threaded engagement of the threaded column and nut allows the position of the stopper relative to the force-applying part to be adjusted; on the other hand, the operator can change the angle of the stopper relative to the force-applying part according to the animal or object being contacted, thus making it suitable for more experimental environments.

[0026] 3. The operator can insert the threaded post into the appropriate position of the limiting hole according to the animal to be stopped, adjust the angle of the stopper relative to the limiting tube, and then tighten the nut to fix the stopper. Attached Figure Description

[0027] Figure 1 yes Figure 1 This is a structural diagram of the device for treating animal blood vessel traction injuries according to an embodiment of this application;

[0028] Figure 2 It is along Figure 1 A cross-sectional view of the AA plane;

[0029] Figure 3 It is along Figure 1 A cross-sectional view of the BB plane;

[0030] Figure 4 It is along Figure 1 A cross-sectional view of the C-plane.

[0031] Reference numerals: 1. Support part; 11. Support frame; 111. Base; 112. Vertical rod; 12. Mounting seat; 2. Force application part; 21. Limiting tube; 211. Limiting protrusion; 212. Sliding groove; 213. Limiting hole; 22. Elastic element; 23. Force application rod; 231. Tooth; 24. Trigger; 3. Clamping part; 31. Fixing clamp; 311. Grip; 312. First connecting part; 32. Force-receiving clamp; 321. Second connecting part; 41. Stopper; 411. Limiting protrusion; 42. Threaded post; 43. Nut. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail.

[0033] This application discloses an apparatus for creating vascular traction injuries in animals.

[0034] Reference Figure 1 An apparatus for creating a traction injury on an animal blood vessel includes a support part 1, a force-applying part 2, and a clamping part 3. The support part 1 supports the force-applying part 2 and the clamping part 3 to a set height to facilitate application to different animals; the force-applying part 2 applies force toward the animal blood vessel to simulate a traction injury; and the clamping part 3 clamps the animal blood vessel and receives the force applied by the force-applying part 2.

[0035] The support part 1 includes a support frame 11 and a mounting seat 12 disposed on the support frame 11. The support frame 11 includes a base 111 and a vertical rod 112. The base 111 is plate-shaped, and the vertical rod 112 is fixed and perpendicular to the base 111. The mounting seat 12 can be installed at different heights on the support frame 11, thus making it suitable for different animal simulation experiments. In the embodiments of this application, the mounting seat 12 and the support frame 11 can be connected by threads or by a pin through which the mounting seat 12 and the support frame 11 are positioned, as long as the position of the mounting seat 12 and the support frame 11 can be restricted and the position of the mounting seat 12 relative to the support frame 11 can be changed.

[0036] Reference Figure 1 and Figure 2The force-applying part 2 includes a limiting tube 21, an elastic element 22, and a force-applying rod 23. The limiting tube 21 is snapped into the mounting base 12. The elastic element 22 provides elastic force and is installed inside the limiting tube 21. The force-applying rod 23 passes through the elastic element 22, with one end of the force-applying rod 23 extending out of the end of the limiting tube 21, and the other end of the force-applying rod 23 applying force towards the clamping part 3. In the actual simulation experiment, the operator pulls the force-applying rod 23, thereby causing the elastic element 22 to store force, and then releases the force-applying rod 23, causing one end of the force-applying rod 23 to move towards the elastic element 22. Then, the clamping part 3, under the force, moves the animal blood vessel, achieving the purpose of simulating the strain force on the animal blood vessel.

[0037] In this embodiment, the limiting tube 21 can rotate relative to the mounting base 12, thereby adjusting the angle of the clamping part 3 relative to the experimental animal, making it easier for the operator to clamp blood vessels at different positions of the experimental animal.

[0038] The two ends of the force-applying rod 23 extend radially, thereby reducing the probability of the elastic element 22 detaching from the force-applying rod 23. In actual production, the force-applying rod 23 can be made into two short sections that are snap-fitted, plugged in, or threaded together, so that it can be inserted into the elastic element 22.

[0039] Furthermore, a plurality of teeth 231 are provided on one side of the force-applying rod 23, and springs extend from the teeth 231; a limiting protrusion 211 extends inward from the inner wall of the limiting tube 21 near the teeth 231, and one of the teeth 231 engages with the limiting protrusion 211, at which time the elastic element 22 is in a contracted state. In this embodiment, the cross-section of the teeth 231 is arranged in a right-angled triangle, and the inclined surface of the teeth 231 faces the side of the force-applying rod 23 near the mounting base 12, which facilitates the operator to pull the force-applying rod 23 towards the side near the mounting base 12 to store force.

[0040] In this embodiment of the application, in a non-simulated experimental state, the position of the force-applying rod 23 can be limited by the engagement of the teeth 231 with the limiting protrusion 211 and the retractable elastic element 22; the operator can also preliminarily determine the current range of force based on the teeth 231 engaged with the limiting protrusion 211, which is convenient for conducting simulation experiments.

[0041] To prevent the tooth 231 from disengaging from the limiting protrusion 211, a trigger 24 is inserted through one side of the limiting tube 21. The trigger 24 is approximately T-shaped. One end of the trigger 24 is inserted vertically into the limiting tube 21 and then the force rod 23 is inserted, thereby limiting the position of the force rod 23 relative to the limiting tube 21. The other end of the trigger 24 is set parallel to the limiting tube 21, making it easy for the operator to insert or remove the trigger 24.

[0042] In another embodiment, the force bar 23 is marked with multiple tensile force values ​​along its own axial direction, and each force value corresponds to a tooth 231, so that the operator can intuitively determine the current tensile force.

[0043] Reference Figure 2 and Figure 3 The clamping part 3 includes a fixing clamp 31 and a force-receiving clamp 32. The fixing clamp 31 is fixedly connected to the outer wall of the limiting tube 21, and one end of the force-receiving clamp 32 extends into the limiting tube 21 and can slide along the limiting tube 21.

[0044] Refer to Figure 3 and Figure 4 The fixing clamp 31 includes two grippers 311, one end of which extends to a first connecting portion 312. The first connecting portion 312 connects the two grippers 311 to form a single unit. The other end of the clamp is rounded and pointed to facilitate gripping animal blood vessels. In this embodiment, the force-receiving clamp 32 differs from the fixing clamp 31 in that the two grippers 311 of the force-receiving clamp 32 extend to a second connecting portion 321, which is approximately T-shaped. The second connecting portion 321 connects the two grippers 311 of the force-receiving clamp 32 to form a single unit.

[0045] The first connecting part 312 is fixedly connected to the side wall of the limiting tube 21 so as to achieve the purpose of the fixed clamp 31 clamping the set position and not being subject to the elastic force of the elastic member 22; the set position here is a fixed position determined by the operator so that the force-bearing clamp 32 is subjected to force and drives the animal blood vessel to move, while the set position is not easily moved by force.

[0046] Reference Figure 2 The limiting tube 21 has a sliding groove 212 along its own axial direction, and the second connecting part 321 extends into the limiting tube 21 from the sliding groove 212 and abuts against the inner side wall of the limiting tube 21.

[0047] Reference Figure 1 The limiting tube 21, at the end furthest from the mounting base 12, is equipped with a plate-shaped or block-shaped stopper 41. The axial direction of the stopper 41 is parallel to the axial direction of the vertical rod 112. The stopper 41 abuts against the animal to restrict the animal's position before the experiment, making it easier for the operator to clamp the blood vessel. In the actual simulation experiment, the stopper 41 can abut against the animal's body, making the animal more stable before the experiment. During the experiment, the stopper can be removed so as not to hinder the animal's movement or shaking after being subjected to force, thus highly simulating the situation of blood vessel traction injury.

[0048] Furthermore, the limiting tube 21 has multiple limiting holes 213 arranged in a linear array, and a threaded post 42 is vertically arranged on one side of the stopper 41. The threaded post 42 passes through the limiting hole 213 and is threadedly connected to a nut 43. On the one hand, the cooperation between the nut 43 and the threaded post 42 can effectively limit the position of the stopper 41, thereby limiting the position of the device used to establish vascular traction injury in animals and reducing the probability of movement during the simulation experiment. On the other hand, since the stopper 41 can abut against the animal's body, the position of the stopper 41 relative to the limiting tube 21 can be adjusted according to the different animals or objects being clamped, so as to limit the movement more stably.

[0049] Reference Figure 1 and Figure 3 The stopper 41 has multiple limiting ridges 411 formed on the side near the base 111. These ridges increase the friction between the stopper 41 and the animal, making the stopper 41 more stably positioned. In this embodiment, the limiting ridges 411 can also be multiple protrusions, or a material with high friction, such as rubber, can be used for positioning. The operator adjusts the position of the stopper 41 relative to the limiting tube 21 until the stopper 41 is detached from the animal or removed, ensuring the stopper 41 stably contacts the experimental animal before the experiment, thus restricting the animal's position.

[0050] The implementation principle of this application embodiment is as follows: The operator determines the height of the mounting base 12 according to the body of the simulated experimental animal, so that the simulated experimental animal can be placed between the mounting base 12 and the base 111, and the limiting tube 21 is installed on the mounting base 12; the simulated experimental animal is placed, and the position of the animal is restricted by the stop device 41, and then the fixing clamp 31 and the force clamp 32 clamp the animal's blood vessels respectively, and then the stop device 41 is removed; the operator pulls the force application rod 23 to make the elastic element 22 store force, and pulls it to different lengths according to the needs of the current simulation experiment; then the force application rod 23 is released, so that the force application rod 23 applies force towards the force clamp 32, thereby driving the animal's blood vessels to move, achieving the purpose of establishing animal blood vessel traction injury, and only one operator is needed to complete the task, effectively reducing labor costs.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An apparatus for inducing vascular traction injury in animals, characterized in that, It includes a support part (1), a force-applying part (2) and a clamping part (3). One end of the force-applying part (2) is installed on the support part (1), and the other end of the force-applying part (2) is detachably connected to a stop (41). The stop (41) abuts against the animal. The clamping part (3) is located on one side of the force-applying part (2) and is used to clamp the animal's blood vessels. The force-applying part (2) applies force toward the clamping part (3).

2. The apparatus for establishing vascular traction injuries in animals according to claim 1, characterized in that, A threaded post (42) is fixedly connected to one side of the stop (41), and a nut (43) is threadedly connected to the threaded post (42) after it is inserted into the force-applying part (2).

3. The apparatus for establishing vascular traction injuries in animals according to claim 1 or 2, characterized in that, The stopper (41) is provided with multiple limiting ridges (411) on one side, and the limiting ridges (411) abut against the animal.

4. The apparatus for establishing vascular traction injuries in animals according to claim 2, characterized in that, The force-applying part (2) includes a limiting tube (21), an elastic element (22), and a force-applying rod (23). The stopper (41) is installed at one end of the limiting tube (21). The elastic element (22) is disposed at the end of the limiting tube (21) away from the stopper (41). One end of the force-applying rod (23) extends into the limiting tube (21) and passes through the elastic element (22). The other end of the force-applying rod (23) extends out of the limiting tube (21). The end of the limiting tube (21) near the force-applying rod (23) is installed on the support part (1), the clamping part (3) is provided on the side wall of the limiting tube (21), and the end of the force-applying rod (23) extending into the limiting tube (21) applies force toward the clamping part (3).

5. The apparatus for establishing vascular traction injuries in animals according to claim 4, characterized in that, The limiting tube (21) has multiple limiting holes at one end near the stopper (41), and the threaded post (42) is inserted into one of the limiting holes.

6. The apparatus for establishing vascular traction injuries in animals according to claim 4, characterized in that, The inner wall of the limiting tube (21) is provided with a limiting protrusion (211), and the force rod (23) is provided with a plurality of teeth (231) on one side corresponding to the limiting protrusion (211), one of the teeth (231) being engaged with the limiting protrusion (211).

7. The apparatus for establishing vascular traction injuries in animals according to claim 4, characterized in that, The clamping part (3) includes a force-receiving clamp (32) and a fixing clamp (31). The force-receiving clamp (32) and the fixing clamp (31) are identically configured. The fixing clamp (31) is fixedly connected to the limiting tube (21). One end of the force-receiving clamp (32) extends into the limiting tube (21), and the force-receiving clamp (32) can move along the limiting tube (21).

8. The apparatus for establishing vascular traction injuries in animals according to claim 1, characterized in that, The support (1) includes a support frame (11) and a mounting base (12), the mounting base (12) is mounted on the support frame (11), and the force-applying part (2) is mounted on the mounting base (12).

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