Device for establishing animal blood vessel pulling injury

By designing a device with a support section, a force-applying section, and a clamping section, the problem of high labor costs in simulating animal blood vessel traction injuries was solved, achieving the effect of single-person operation and flexible control of the traction force.

CN223746495UActive Publication Date: 2026-01-02CHINESE PEOPLES LIBERATION ARMY NAVAL SPECIALTY MEDICAL CENT
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Patent Information

Application Number
CN202422878178.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2024-01-23
Filing Date
2024-11-23
Publication Date
2026-01-02
Estimated Expiration
2034-11-23

AI Technical Summary

Technical Problem

The process of simulating vascular traction injury in animals requires at least two operators to fix the injury and apply the traction force, resulting in high labor costs.

Method used

Design a device that includes a support part, a force-applying part, and a clamping part. The animal blood vessel is clamped at different positions by force-receiving clamps and fixing clamps respectively. The force-applying part applies force towards the force-receiving clamp. Only one operator is needed to complete the simulation process.

Benefits of technology

It enables the simulation of animal blood vessel traction injury under single-person operation, reducing labor costs, and through the design of limiting grooves and elastic components, it can flexibly control the applied traction force.

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Abstract

The utility model relates to the technical field of simulation of traction strain, in particular to a device for establishing animal blood vessel traction strain, which comprises a supporting part, a force application part and a clamping part, the supporting part is used for supporting the force application part and the clamping part, the clamping part is arranged on the side wall of the force application part, and the force application part applies force towards the clamping part; the clamping part comprises a fixing clamp and a stress clamp, and the fixing clamp and the stress clamp are used for clamping different positions of animal blood vessels; the fixing clamp is fixedly connected to the side wall of the force application part, the stress clamp is slidably connected to the side wall of the force application part, the force application part applies force towards the stress clamp, and the stress clamp slides on the side wall of the force application part after being stressed. The method has the effect of effectively reducing the labor cost.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of simulating a traction injury, in particular to an apparatus for establishing a traction injury of an animal blood vessel. BACKGROUND

[0002] Traumatic cerebrovascular injury (TCVI) is a brain vascular injury secondary to head and neck trauma, with a high mortality and disability rate. If not intervened in time after the injury, it may lead to serious complications such as cerebral infarction, cerebral hemorrhage, and local hematoma formation, affecting the prognosis of patients. The injury modes of TCVI include impact, traction (traction injury), cutting and other modes, and the pathological mechanism is complex and has not been fully elucidated. By establishing a reliable animal model, mechanism research can be carried out, thereby reducing the mortality and disability rate of TCVI patients.

[0003] In the actual process of simulating a traction injury of an animal blood vessel, since it is necessary to fix the animal and apply a traction force to the animal blood vessel at the same time, if manual operation is adopted, at least 2 operators are required, and the labor cost is high. CONTENT OF THE UTILITY MODEL

[0004] In order to reduce the labor cost, the present application provides a device for establishing a traction injury of an animal blood vessel.

[0005] The device for establishing a traction injury of an animal blood vessel provided by the present application adopts the following technical solution:

[0006] The device for establishing a traction injury of an animal blood vessel comprises a supporting part, a force applying part and a clamping part, the supporting part is used for supporting the force applying part and the clamping part, the clamping part is arranged on the side wall of the force applying part, and the force applying part applies a force towards the clamping part.

[0007] The clamping part comprises a fixed clamp and a force receiving clamp, the fixed clamp and the force receiving clamp clamp different positions of the animal blood vessel; the fixed clamp is fixedly connected to the side wall of the force applying part, the force receiving clamp is slidingly connected to the side wall of the force applying part, and the force applying part applies a force towards the force receiving clamp, and the force receiving clamp slides on the side wall of the force applying part after receiving the force.

[0008] By adopting the above technical solution, the force receiving clamp and the fixed clamp clamp different positions of the animal blood vessel respectively, and then the force applying part can apply a force towards the force receiving clamp, so that the condition that the animal blood vessel is subjected to a traction force can be simulated. In this process, the operator only needs to clamp the animal blood vessel by the force receiving clamp and the fixed clamp, and then apply a force by the force applying part. Only one operator is required to complete the above process, thereby effectively reducing the labor cost.

[0009] Preferably, the fixed clamp and the force receiving clamp are arranged in the same way, the fixed clamp comprises two clamping jaws and a limiting rotary rod, one end of the limiting rotary rod abuts against one of the clamping jaws and is rotationally connected to the clamping jaw, and the other end of the limiting rotary rod is threadedly connected to the other clamping jaw.

[0010] By adopting the technical scheme, the operator adjusts the space between the two clamping jaws according to the size of the animal blood vessel to be clamped, so that the two clamping jaws can firmly clamp the animal blood vessel.

[0011] Preferably, one end of the limiting rotary rod threadedly connected to the other clamping jaw is fixed with a hand-held disc, and the diameter of the limiting rotary rod is smaller than the diameter of the hand-held disc.

[0012] By adopting the technical scheme, the operator can rotate the limiting rotary rod through the hand-held disc, and the operation is convenient.

[0013] Preferably, the force applying part comprises a limiting tube, an elastic member and a force applying rod, the elastic member is arranged at one end of the limiting tube, one end of the force applying rod extends into the limiting tube and penetrates the elastic member, and the other end of the force applying rod extends out of the limiting tube.

[0014] The limiting tube is installed on the supporting part at the end close to the force applying rod, the clamping part is arranged on the side wall of the limiting tube, and the end of the force applying rod extending into the limiting tube applies force to the clamping part.

[0015] By adopting the technical scheme, the operator can store force in the elastic member by pulling the force applying rod, and then apply force to the clamping part, so as to simulate the situation of manually pulling the animal blood vessel.

[0016] Preferably, the end of the limiting tube away from the force applying rod is provided with a stopper, and the stopper abuts against the animal or the experimental table.

[0017] By adopting the technical scheme, the stopper abuts against the animal during the experiment, so as to effectively limit the position of the animal before the experiment, and the stopper is removed during the experiment, so as to facilitate the operator to apply force to the blood vessel.

[0018] Preferably, a trigger is arranged through one side of the limiting tube, and the trigger is inserted into the limiting tube and is connected to the force applying rod.

[0019] By adopting the technical scheme, the force applying rod is connected to the force applying rod through the trigger inserted into the limiting tube, so as to effectively limit the position of the force applying rod relative to the limiting tube.

[0020] Preferably, the force applying rod is provided with a plurality of limiting grooves, and the trigger is connected to one of the limiting grooves.

[0021] By adopting the technical scheme, the operator can insert the force applying rod into different limiting grooves to accumulate different forces, and then release the trigger to make the force applying rod directly apply force to the clamping part.

[0022] Preferably, the supporting part comprises a supporting frame and a mounting seat, the mounting seat is mounted on the supporting frame, and the force applying part is mounted on the mounting seat.

[0023] By adopting the technical scheme, the position of the force applying part relative to the supporting frame is limited by the mounting seat, so that the height of the force applying part can be raised by the supporting frame, facilitating the establishment of a pulling injury of the animal blood vessel to simulate the situation that the animal blood vessel is subjected to a pulling injury.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. The force receiving clamp and the fixing clamp clamp different positions of the animal blood vessel respectively, and then the force applying part can apply force to the force receiving clamp, so that the situation that the animal blood vessel is subjected to a pulling injury can be simulated. In this process, the operator only needs to clamp the animal blood vessel by the force receiving clamp and the fixing clamp, and then apply force by the force applying part. Only one operator is needed to complete the above process, which effectively reduces the labor cost.

[0026] 2. The operator can insert the force applying rod into different limiting grooves to accumulate different forces, and then release the trigger to make the force applying rod directly apply force to the clamping part. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is Figure 1 is a structural view of an animal blood vessel pulling injury establishment device according to an embodiment of the present application;

[0028] Figure 2 is Figure 1 a sectional view along A-A in FIG. 1;

[0029] Figure 3 is Figure 1 a sectional view along B-B in FIG. 1;

[0030] Figure 4 is Figure 1 a sectional view along C-C in FIG. 1.

[0031] Fig. 1 is a support part; 11 is a support frame; 111 is a base; 112 is a vertical rod; 12 is a mounting seat; 2 is a force applying part; 21 is a limiting tube; 211 is a sliding groove; 22 is an elastic member; 23 is a force applying rod; 231 is a limiting groove; 24 is a trigger; 3 is a clamping part; 31 is a fixed clamp; 311 is a clamping jaw; 312 is a limiting rotary rod; 3121 is a hand holding disc; 313 is a first connecting part; 32 is a force receiving clamp; 321 is a second connecting part; 4 is a position limiter. DETAILED DESCRIPTION

[0032] The following will be described in detail with reference to the accompanying drawings Figure 4 The application is further described in detail.

[0033] The application discloses a device for establishing a vascular stretch injury of an animal.

[0034] Referring to Figure 1 A device for establishing a vascular stretch injury of an animal includes a support part 1, a force applying part 2 and a clamping part 3. The support part 1 is used to support the force applying part 2 and the clamping part 3 to a set height, so as to be suitable for different animals; the force applying part 2 is used to apply force to the animal's blood vessels, so as to simulate the situation that the animal's blood vessels are subjected to a stretch force; and the clamping part 3 is used to clamp the position of the animal's blood vessels and receive the force applied by the force applying part 2.

[0035] The support part 1 includes a support frame 11 and a mounting seat 12 arranged on the support frame 11. The support frame 11 includes a base 111 and a vertical rod 112. The base 111 is arranged in a plate shape, and the vertical rod 112 is fixed and arranged perpendicularly to the base 111. The mounting seat 12 can be mounted at different heights of the support frame 11, so as to be suitable for different animal simulation experiments. In the application, the mounting seat 12 and the support frame 11 can be connected by threads or positioned by inserting a pin through the mounting seat 12 and the support frame 11, etc. Only the position of the mounting seat 12 and the support frame 11 needs to be limited, and the position of the mounting seat 12 relative to the support frame 11 can be changed.

[0036] Referring to Figure 2 The force applying part 2 includes a limiting tube 21, an elastic member 22 and a force applying rod 23. The limiting tube 21 is connected to the mounting seat 12, the elastic member 22 is used to provide an elastic force and is arranged in the limiting tube 21, and the force applying rod 23 passes through the elastic member 22. One end of the force applying rod 23 extends out of the end of the limiting tube 21, and the other end of the force applying rod 23 can apply force to the clamping part 3. In actual simulation experiments, an operator pulls the force applying rod 23, so as to drive the elastic member 22 to store energy, then releases the force applying rod 23, so that one end of the force applying rod 23 moves towards the elastic member 22, and then the clamping part 3 moves under the force, so as to achieve the purpose of simulating that the animal's blood vessels are subjected to a stretch force.

[0037] The two ends of the force applying rod 23 extend along the radial direction of the force applying rod 23, so that the probability of the elastic member 22 being separated from the force applying rod 23 can be reduced. In actual production, the force applying rod 23 can be a short rod connected by clamping, inserting or screwing, so as to be inserted into the elastic member 22.

[0038] The trigger 24 is inserted into the limiting tube 21 through one side of the limiting tube 21. The trigger 24 is approximately T-shaped. After one end of the trigger 24 is inserted into the limiting tube 21, the trigger 24 is continuously inserted into the force applying rod 23, so as to limit the position of the force applying rod 23 relative to the limiting tube 21. The other end of the trigger 24 is parallel to the limiting tube 21, so as to facilitate the operator to insert or pull out the trigger 24.

[0039] In the embodiment of the present application, a plurality of limiting grooves 231 are formed in the side of the force applying rod 23 close to the trigger 24. The end of the trigger 24 is inserted into one of the limiting grooves 231, so as to stably limit the position of the force applying rod 23.

[0040] In another embodiment, the end of the trigger 24 and the side wall of the limiting groove 231 can be connected by screwing, so as to more stably limit the position of the force applying rod 23.

[0041] In another embodiment, a plurality of force values of the tensile force are marked on the force applying rod 23 along the axial direction of the force applying rod 23. Each force value corresponds to a tooth, so as to facilitate the operator to intuitively determine the current tensile force value.

[0042] Referring to Figure 2 and Figure 3 , the clamping part 3 includes a fixed clamp 31 and a force receiving clamp 32. The fixed clamp 31 is fixedly connected to the outer side wall of 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 slide along the limiting tube 21.

[0043] The fixed clamp 31 includes two clamping jaws 311 and a limiting rotary rod 312. One end of the two clamping jaws 311 extends a first connecting part 313, and the first connecting part 313 connects the two clamping jaws 311 to form an integral whole. The other end is a smooth pointed end, so as to clamp the animal blood vessel. In the embodiment of the present application, referring to Figure 3 and Figure 4 , the difference between the force receiving clamp 32 and the fixed clamp 31 is that the two clamping jaws 311 of the force receiving clamp 32 extend a second connecting part 321, and the second connecting part 321 is approximately T-shaped. The second connecting part 321 connects the two clamping jaws 311 of the force receiving clamp 32 to form an integral whole.

[0044] Referring to Figure 2 and Figure 3The first connecting part 313 is fixedly connected to the side wall of the limiting tube 21, so as to realize that the fixed clamp 31 clamps the set position and is not affected by the elastic force of the elastic member 22. The set position herein is the fixed position determined by the operator, so that the force receiving clamp 32 is forced and moves the animal blood vessel, and the set position is not easily forced to move.

[0045] One end of the limiting rotating rod 312 abuts against the side wall of one of the clamping jaws 311 away from the other clamping jaw 311, and the one end of the limiting rotating rod 312 is rotationally connected with the one clamping jaw 311. The other end of the limiting rotating rod 312 is threadedly connected with the other clamping jaw 311. When the operator needs to change the space size between the two clamping jaws 311, the operator only needs to rotate the other end of the limiting rotating rod 312.

[0046] Further, the other end of the limiting rotating rod 312 is perpendicularly fixed with a hand holding disc 3121, and the diameter of the hand holding disc 3121 is greater than the diameter of the limiting rotating rod 312, so as to facilitate the operator to rotate the limiting rotating rod 312.

[0047] The limiting tube 21 is provided with a sliding groove 211 in the axial direction of the limiting tube 21. The second connecting part 321 extends into the limiting tube 21 from the sliding groove 211 and abuts against the inner side wall of the limiting tube 21.

[0048] Referring to Figure 1 The end of the limiting tube 21 away from the mounting base 12 is threadedly connected with a stopper 4 in the form of a plate. Before the experiment, the position of the animal is limited by the stopper 4. In the actual simulation experiment, the stopper 4 is removed, so that the operator can move or shake the animal after applying force to the blood vessel. The position of the animal is stably limited before the experiment, and the movement of the animal after being forced is not hindered in the experiment, thereby highly simulating the situation of the blood vessel being pulled and injured.

[0049] The implementation principle of the embodiment of the application is as follows. The operator determines the height of the mounting base 12 according to the body of the simulation experiment animal, and installs the limiting tube 21 on the mounting base 12. The simulation experiment animal is placed, and the position of the animal is limited by the stopper 4. Then, the fixed clamp 31 and the force receiving clamp 32 clamp the blood vessel of the animal, respectively. Then, the stopper 4 is removed. The operator pulls the force applying rod 23 to store the elastic force of the elastic member 22, and pulls different lengths according to the needs of the current simulation experiment. Then, the force applying rod 23 is loosened, and the force applying rod 23 applies force to the force receiving clamp 32, so as to move the blood vessel of the animal, thereby achieving the purpose of establishing the blood vessel of the animal being pulled and injured, and only one operator is needed to complete the operation, thereby effectively reducing the labor cost.

[0050] The above are the preferred embodiments of the application, and do not limit the protection scope of the application. Therefore, equivalent changes made according to the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A device 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). The support part (1) is used to support the force-applying part (2) and the clamping part (3). The clamping part (3) is disposed on the side wall of the force-applying part (2), and the force-applying part (2) applies force toward the clamping part (3). The clamping part (3) includes a fixing clamp (31) and a force-receiving clamp (32), which clamp the animal blood vessels at different positions. The fixing clamp (31) is fixedly connected to the side wall of the force-applying part (2), and the force-receiving clamp (32) is slidably connected to the side wall of the force-applying part (2). The force-applying part (2) applies force toward the force-receiving clamp (32), and the force-receiving clamp (32) slides on the side wall of the force-applying part (2) after being subjected to force.

2. The device for establishing vascular traction injury in animals according to claim 1, characterized in that, The fixing clamp (31) and the force-bearing clamp (32) are configured in the same way. The fixing clamp (31) includes two jaws (311) and a limiting screw rod (312). One end of the limiting screw rod (312) abuts against one of the jaws (311) and is rotatably connected to one of the jaws (311). The other end of the limiting screw rod (312) is threadedly connected to the other jaw (311).

3. The device for establishing vascular traction injury in animals according to claim 2, characterized in that, The limiting screw rod (312) is threaded to one end of another gripper (311) and a hand-held disc (3121) is fixed thereon. The diameter of the limiting screw rod (312) is smaller than the diameter of the hand-held disc (3121).

4. The device for establishing vascular traction injury in animals according to claim 1, characterized in that, The force-applying part (2) includes a limiting tube (21), an elastic element (22), and a force-applying rod (23). The elastic element (22) is disposed at one end of the limiting tube (21). 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 device for establishing vascular traction injury in animals according to claim 4, characterized in that, A stopper (4) is provided at the end of the limiting tube (21) away from the force bar (23), and the stopper (4) abuts against the animal.

6. The device for establishing vascular traction injury in animals according to claim 4, characterized in that, A trigger (24) is provided through one side of the limiting tube (21), and the trigger (24) is inserted into the limiting tube (21) and then connected to the force rod (23).

7. The device for establishing vascular traction injury in animals according to claim 6, characterized in that, The force-applying rod (23) has multiple limiting slots (231), and the trigger (24) is inserted into one of the limiting slots (231).

8. The device for establishing vascular traction injury 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).