CN117854365A - Appliance and method for establishing animal blood vessel traction injury - Google Patents

Abstract

The application relates to an apparatus and a method for establishing animal blood vessel traction injury, and relates to the technical field of traction injury simulation, wherein the apparatus comprises a clamping part and a force application part, and the clamping part is used for clamping animal blood vessels; the force application part comprises an elastic piece and a pressure measurement sensor, the pressure measurement sensor is arranged at one end of the clamping part, the elastic force provided by the elastic piece is used for applying force to the animal blood vessel, and the elastic piece applies force to the pressure measurement sensor. The application has the effects of reducing labor cost and accurately applying the pulling force.

Description

Appliance and method for establishing animal blood vessel traction injury

Technical Field

The application relates to the technical field of simulated traction injury, in particular to an instrument and a method for establishing animal blood vessel traction injury.

Background

Traumatic cerebrovascular disease (traumatic cerebrovascular injury, TCVI) is a cerebrovascular injury secondary to head and neck trauma, with a high mortality and disability rate. If the intervention is not timely carried out after occurrence, serious complications such as cerebral infarction, cerebral hemorrhage, local hematoma formation and the like can be caused, and the prognosis of a patient is affected. The traumatizing modes of TCVI include various modes such as impact, traction (traction injury), cutting and the like, and the pathological mechanism is complex and has not been completely elucidated. By establishing a reliable animal model, the mechanism research is facilitated, so that the mortality and disability rate of TCVI patients are reduced.

In the process of actually simulating animal blood vessel pulling and pulling, as the animal is required to be fixed and pulling force is applied to the animal blood vessel, if manual work is adopted, at least 2 operators are required, the labor cost is high, and the pulling force is not easy to be applied accurately.

Disclosure of Invention

In order to reduce labor costs and accurately apply a pulling force, the present application provides an apparatus and method for creating a pulling wound of an animal vessel.

In a first aspect, the present application provides an apparatus for creating a vascular traction injury in an animal, which adopts the following technical scheme:

the device for establishing the animal blood vessel traction injury comprises a clamping part and a force application part, wherein the clamping part is used for clamping the animal blood vessel; the force application part comprises an elastic piece and a pressure measurement sensor, the pressure measurement sensor is arranged at one end of the clamping part, the elastic force provided by the elastic piece is used for applying force to the animal blood vessel, and the elastic piece applies force to the pressure measurement sensor.

Through adopting above-mentioned technical scheme, through the application of force portion towards the clamping part application of force at pressure sensor place, the clamping part can drive animal blood vessel and remove, simulate animal blood vessel traction injury, can detect the pressure that current applied simultaneously through pressure sensor, under the different traction forces of follow-up contrast of being convenient for, animal blood vessel receives the influence, realizes the purpose of simulation animal blood vessel traction injury. By the scheme, the participation of manpower is reduced, so that the labor cost is reduced; meanwhile, the force can be accurately applied to the animal blood vessel through the cooperation of the force application part and the clamping part, so that the aim of accurately applying the pulling force is fulfilled.

Preferably, the clamping part comprises a fixing clamp and a stress clamp, the fixing clamp clamps and fixes the animal blood vessel at a set position, and the stress clamp clamps the animal blood vessel and receives the elastic force applied by the elastic piece.

Through adopting above-mentioned technical scheme, through fixation clamp and atress clamp centre gripping animal blood vessel simultaneously, and the fixation clamp position is unchangeable, the atress clamp can take place the displacement after receiving elasticity to realize the purpose of simulation animal blood vessel traction injury.

Preferably, the fixing clamp and the stress clamp are arranged in the same mode, the fixing clamp comprises two clamping jaws and a limiting knob, the limiting knob penetrates through the two clamping jaws, the limiting knob is in threaded connection with one clamping jaw, and the limiting knob is in rotary connection with the other clamping jaw.

Through adopting above-mentioned technical scheme, can change the space between two clamping jaws through the relative position that changes spacing knob and one of them clamping jaw to can be applicable to more size animal blood vessels, can ensure simultaneously that two clamping jaws stably centre gripping animal blood vessels, improve the accuracy of simulation animal blood vessel traction injury.

Preferably, one end of the fixing clip extends to form a first connecting part, and the connecting part is fixedly connected with a limiting pipe which is arranged in a hollow mode; the end part of the stress clamp extends to form a second connecting part, the pressure measuring sensor is arranged on the second connecting part, and the stress clamp can slide along the axial direction of the limiting pipe; the elastic piece is positioned in the limiting pipe, the elastic piece is sleeved with a force application rod, two ends of the elastic piece are abutted to the force application rod, the force application rod can slide along the limiting pipe, and one end of the force application rod positioned in the limiting pipe is applied with force towards the second connecting part.

Through adopting above-mentioned technical scheme, the different positions of fixation clamp and atress clamp centre gripping animal blood vessel, then pulling application of force pole, can drive the elastic component simultaneously and hold the power, then loosen application of force pole, the elastic component drives application of force pole and removes and apply force towards the direction that is close to second connecting portion to simulate animal blood vessel traction injury, and can measure the pulling force that animal blood vessel received by pressure measurement sensor on the second connecting portion.

Preferably, the limiting pipe inner side wall inwards extends to form a limiting protrusion, one side of the force application rod, which is close to the limiting protrusion, is provided with a plurality of teeth, and one of the teeth is clamped with the limiting protrusion.

Through adopting above-mentioned technical scheme, through the spacing arch of tooth joint, can realize restricting the purpose of application of force pole and elastic component position, the staff of being convenient for can be according to the size of this application of force of preliminary judgement of tooth with spacing protruding joint simultaneously to be convenient for accomplish the simulation experiment more high-efficiently.

Preferably, the limit pipe is inserted through a trigger, one end of the trigger is inserted into the force application rod, and the other end of the trigger is abutted to the outer side wall of the limit pipe.

Through adopting above-mentioned technical scheme, can restrict the position of application of force pole through the trigger for the application of force pole is all kept in fixed position in non-experimental condition, reduces the influence of application of force pole to animal blood vessel when non-experimental condition.

Preferably, a limiter is arranged at one end of the limiting tube, which is far away from the force application rod, and the limiter is abutted to the animal body or the experiment table.

Through adopting above-mentioned technical scheme, in actual experiment, the limiter can be in the article of animal health, laboratory bench or other fixed positions on the laboratory bench, can restrict the position of establishing animal blood vessel traction and traumatize's utensil to can obtain more accurate experimental result.

Preferably, the one end that the spacing pipe is close to the application of force pole can be dismantled and be connected with the mount pad, the mount pad is connected with the support frame, the mount pad can be followed the direction of height of support frame removes.

Through adopting above-mentioned technical scheme, through changing the high position of mount pad for the support frame, can be applicable to different animals for establish the application scope of animal blood vessel traction and traumatism's utensil more extensive.

In a second aspect, the present application provides a method for creating a vascular traction injury in an animal, which adopts the following technical scheme:

a method of creating a vascular traction injury in an animal comprising the steps of:

determining the position of an animal blood vessel to which a pulling force is to be applied, and clamping the position of the animal blood vessel to which a 21 pulling force is to be applied through a clamping part;

the elastic piece applies force to the clamping part, the clamping part drives the animal blood vessel to move after being stressed, and the pressure sensor measures and outputs the force received by the clamping part.

Through adopting above-mentioned technical scheme, confirm the atress position of animal blood vessel through clamping part, apply force towards animal blood vessel through the elastic component, simultaneously the pressure measurement sensor accepts and exports the power that animal blood vessel received, then operating personnel can obtain the pulling force that animal blood vessel received clearly to and the influence that animal blood vessel received this moment, realize the purpose of simulation animal blood vessel pulling.

Preferably, the animal blood vessel is clamped and fixed by the fixing clamp, and the animal blood vessel is clamped by the stress clamp and receives the elastic force applied by the elastic piece.

Through adopting above-mentioned technical scheme, through fixation clamp and atress clamp centre gripping animal blood vessel simultaneously, and the fixation clamp position is unchangeable, the atress clamp can take place the displacement after receiving elasticity to realize the purpose of simulation animal blood vessel traction injury.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the force application part applies force to the clamping part where the pressure measuring sensor is located, the clamping part can drive the animal blood vessel to move so as to simulate the animal blood vessel traction injury, meanwhile, the pressure applied at present can be detected through the pressure measuring sensor, the influence on the animal blood vessel under different traction injury forces can be conveniently compared subsequently, and the aim of simulating the animal blood vessel traction injury is fulfilled; by the scheme, the participation of manpower is reduced, so that the labor cost is reduced; meanwhile, the force can be accurately applied to the animal blood vessel through the cooperation of the force application part and the clamping part, so that the aim of accurately applying the pulling force is fulfilled;

2. the animal blood vessel is clamped by the fixing clamp and the stress clamp at the same time, the position of the fixing clamp is unchanged, and the stress clamp can displace after being subjected to elastic force, so that the aim of simulating the animal blood vessel traction injury is fulfilled;

3. the gear is clamped with the limiting bulge, so that the purposes of limiting the positions of the force application rod and the elastic piece can be achieved, and meanwhile, a worker can judge the magnitude of the force application according to the gear clamped with the limiting bulge, so that the simulation experiment can be completed more efficiently;

4. the space between the two clamping jaws can be changed by changing the relative position of the limiting knob and one clamping jaw, so that the device is applicable to animal blood vessels with more sizes, and meanwhile, the two clamping jaws can be ensured to stably clamp the animal blood vessels, and the accuracy of simulating animal blood vessel traction injuries is improved.

Drawings

FIG. 1 is a block diagram of an apparatus for creating a vascular traction injury in an animal in accordance with an embodiment of the present application;

FIG. 2 is a cross-sectional view taken along the A-A plane in FIG. 1;

FIG. 3 is a cross-sectional view taken along the B-B plane in FIG. 1;

FIG. 4 is a cross-sectional view taken along the plane C-C in FIG. 1;

fig. 5 is a step diagram of a method of creating a vascular traction injury in an animal in accordance with an embodiment of the present application.

Reference numerals: 1. a clamping part; 11. a fixing clamp; 111. a clamping jaw; 112. a limit knob; 113. a first connection portion; 12. a stress clamp; 121. a second connecting portion; 1211. a limit groove; 2. a force application part; 21. an elastic member; 22. a pressure sensor; 23. a force application rod; 231. a circular plate; 232. teeth; 31. a support frame; 32. a mounting base; 4. a limiting tube; 41. a slip groove; 42. a limiter; 43. a limit protrusion; 5. a trigger.

Detailed Description

The present application is described in further detail below in conjunction with fig. 1-5.

The embodiment of the application discloses an appliance for establishing animal blood vessel traction injury.

Referring to fig. 1, an apparatus for creating a pulling wound of an animal blood vessel mainly includes a clamping portion 1 and a force application portion 2, wherein the clamping portion 1 is used for limiting a position of the animal blood vessel, and the force application portion 2 is used for applying force to the animal blood vessel so as to achieve the purpose of simulating the pulling force of the animal blood vessel.

In detail, referring to fig. 2, the force applying part 2 includes an elastic member 21 and a pressure sensor 22, the pressure sensor 22 is mounted and fixed to an end of the clamping part 1, and the elastic member 21 is used to provide elastic force; in the practical simulation experiment, the elasticity of the elastic piece 21 is applied to the position of the clamping part 1 where the pressure measuring sensor 22 is installed, and then the clamping part 1 drives the animal blood vessel to move under the condition of being stressed, so that the purpose of simulating the tensile force of the animal blood vessel is realized.

In this embodiment, the signal output end of the pressure measurement sensor 22 may be provided with a signal connection port, so that the pressure measurement sensor 22 transmits the detected pressure signal to a screen capable of displaying the signal. Further, since the output signal of the pressure sensor 22 is usually an analog signal, an analog-to-digital converter may be connected to the signal to convert the output signal of the pressure sensor 22 into a digital signal for the operator to check. The above-mentioned techniques are conventional data conversion and display in the related art, and therefore will not be described in detail.

Referring to fig. 1, in the actual simulation experiment, because the blood vessels of different animals are different in height, the apparatus for establishing animal blood vessel traction injury further comprises a support frame 31 and a mounting seat 32 arranged on the support frame 31, the support frame 31 can adopt a common base and vertical rod form, and the mounting seat 32 can be arranged on different heights of the support frame 31, so that the apparatus can be suitable for different animal simulation experiments. In this embodiment, the positioning modes such as the mounting seat 32 and the supporting frame 31 can be threaded or inserted between the mounting seat 32 and the supporting frame 31, and the positions of the mounting seat 32 and the supporting frame 31 only need to be limited, and the positions of the mounting seat 32 relative to the supporting frame 31 can be changed.

In order to facilitate the installation of the clamping part 1 and the force application part 2 on the installation seat 32, a limiting pipe 4 is further arranged, and one end of the limiting pipe 4 is clamped on the installation seat 32. One end of the elastic piece 21 is inserted into the limiting tube 4, and the other end of the elastic piece 21 extends out of the limiting tube 4; the clamping part 1 is arranged on the side wall of the limiting pipe 4.

Referring to fig. 2, the force application portion 2 further includes a force application rod 23, in this embodiment, the elastic member 21 is a spring, the force application rod 23 is disposed in the elastic member 21 in a penetrating manner, and the diameter of the force application rod 23 is smaller than that of the spring, so that the force accumulation and force application of the operator are facilitated. Specifically, the two ends of the force application rod 23 are both provided with circular plates 231, the diameter of the circular plates 231 is larger than that of the spring, the circular plates 231 positioned on the limiting tube 4 are used for applying force to the second connecting portion 121, and the circular plates 231 positioned outside the limiting tube 4 are convenient for operators to pull the force application rod 23.

Further, a plurality of teeth 232 are arranged on one side of the force application rod 23, and the teeth 232 extend out of the spring; one side of the inner side wall of the limiting tube 4, which is close to the teeth 232, is inwards extended to form a limiting protrusion 43, one of the teeth 232 is clamped to the limiting protrusion 43, and the elastic piece 21 is in a contracted state. In the embodiment of the application, in the non-simulation experiment state, the position of the force application rod 23 can be limited by the clamping connection of the tooth 232 and the limiting protrusion 43 and the contracted elastic piece 21; the operator can also preliminarily judge the current force application range according to the teeth 232 clamped with the limiting protrusions 43, so that simulation experiments can be conveniently carried out.

In order to prevent the tooth 232 from separating from the limiting protrusion 43, one side of the limiting tube 4 is inserted with a trigger 5 in a penetrating manner, the trigger 5 is approximately T-shaped, and after one section of the trigger 5 is vertically inserted into the limiting tube 4, the force application rod 23 is continuously inserted, so that the purpose of limiting the position of the force application rod 23 relative to the limiting tube 4 is realized; the other section of the trigger 5 is arranged in parallel with the limiting tube 4, so that an operator can conveniently insert or extract the trigger 5.

In another embodiment, the force applying rod 23 is marked with a plurality of force values of the pulling force along the axial direction thereof, and each force value corresponds to one tooth 232, so that the operator can intuitively determine the current pulling force.

In detail, referring to fig. 2 and 3, the clamping portion 1 includes a fixing clip 11 and a force-bearing clip 12, wherein the fixing clip 11 is fixedly connected to a side wall of the limiting tube 4, one end of the force-bearing clip 12 extends into the limiting tube 4, the force-bearing clip 12 can slide along the limiting tube 4, and the pressure measuring sensor 22 is mounted at one end of the force-bearing clip 12 extending into the limiting tube 4.

Further, the fixing clip 11 is provided in the same manner as the clamping portion 1 of the force receiving clip 12, and the fixing clip 11 will be described as an example.

Referring to fig. 3 and 4, the fixing clip 11 includes two clamping jaws 111 and a limit knob 112, one ends of the two clamping jaws 111 are extended with a first connection portion 113, the two clamping jaws 111 are connected to form a whole by the first connection portion 113, and the other ends of the two clamping jaws 111 are arranged in a smooth tip, so that the animal blood vessel can be clamped conveniently. In this embodiment, the two clamping jaws 111 of the force-bearing clamp 12 extend to form a second connecting portion 121, and the second connecting portion 121 connects the two clamping jaws 111 of the force-bearing clamp 12 into a whole. The limiting knob 112 penetrates through the two clamping jaws 111, in the embodiment of the application, the limiting knob 112 is in threaded connection with one clamping jaw 111, and meanwhile, the limiting knob 112 is in rotary connection with the other clamping jaw 111; the relative position of the two clamping jaws 111 can be changed after the limit knob 112 rotates, so that the two clamping jaws 111 can stably clamp blood vessels with different sizes; the different sizes herein refer to the diameters of the blood vessels.

The first connecting part 113 is fixedly connected to the side wall of the limiting tube 4 so as to realize the clamping setting position of the fixing clamp 11 and avoid the elasticity of the elastic piece 21; the set position is a fixed position determined by an operator, so that the stress clamp 12 is stressed and drives the animal blood vessel to move, and the set position is not easy to move under stress.

Referring to fig. 1 and 2, the limiting tube 4 is provided with a sliding groove 41 along the axial direction thereof, the second connecting portion 121 is approximately T-shaped, and the second connecting portion 121 extends into the limiting tube 4 from the sliding groove 41 and abuts against the inner side wall of the limiting tube 4. The pressure sensor 22 is mounted at a position where the second connecting portion 121 is located in the stopper tube 4.

In another embodiment, referring to fig. 4, in order to make the force clip 12 move more stably, the second connecting portion 121 is provided with a limiting groove 1211 on a side wall of the sliding groove 41, and the side wall of the limiting groove 1211 is in clearance fit with the side wall of the sliding groove 41. In the process of moving the second connecting portion 121 after being stressed, the side wall of the limiting groove 1211 is always in clearance fit with the side wall of the sliding groove 41, so that the moving direction of the second connecting portion 121 is limited.

Referring to fig. 1, a limiter 42 is disposed at one end of the limiting tube 4 away from the mounting seat 32, where the limiter 42 is used to limit the position of the device for establishing animal blood vessel traction injury proposed in the application, and in practical simulation experiments, the limiter 42 may be clamped to an animal body or a laboratory table, or other relatively stable articles on the laboratory table.

The implementation principle of the embodiment of the application is as follows: the elastic piece 21 stores force and drives the force application rod 23 to apply force to the second connecting part 121, so that the animal blood vessel is entrained to move by the force application, and the situation that the animal blood vessel is subjected to a pulling force is simulated. By means of different storage forces of the elastic piece 21, the influence of animal blood vessels under different pulling forces can be simulated, and the purpose of simulating animal blood vessel pulling and pulling is achieved.

The embodiment of the application also discloses a method for establishing the animal blood vessel traction injury.

Referring to fig. 5, a method of creating a vascular traction injury in an animal comprises the steps of:

s1: the position of the animal blood vessel to which the pulling force is to be applied is determined, and the position of the animal blood vessel to which the pulling force is to be applied is clamped by the clamping part 1.

The operator needs to determine the position of the animal blood vessel to be applied with the pulling force first so that the operator can accurately apply the pulling force.

S2: the elastic piece 21 applies force to the clamping part 1, the clamping part 1 is stressed to drive the animal blood vessel to move, and then the pressure sensor 22 measures and outputs the force applied to the clamping part 1.

In detail, the elastic piece 21 applies force to the clamping part 1, so that the clamping part 1 can drive the animal blood vessel to move, thereby simulating the situation that the animal blood vessel is subjected to a pulling force; when the clamping part 1 receives the tensile force, the pressure measuring sensor 22 can detect the tensile force received by the animal blood vessel and convert the tensile force into signal output, and then an analog-to-digital converter, a display screen and the like can be connected, so that operators can conveniently observe the current tensile force intuitively.

The clamping part 1 in S1 clamps the position of the animal blood vessel to which the pulling force is to be applied, specifically can clamp the position of the animal blood vessel to which the pulling force is to be applied through the stress clamp 12, and clamps the position of the animal blood vessel near the position to which the pulling force is to be applied through the fixing clamp 11. In S2, the elastic member 21 applies elastic force toward the force-receiving clip 12, thereby simulating the animal blood vessel being subjected to a pulling force.

The implementation principle of the embodiment of the application is as follows: after the elastic piece 21 stores the force, the force is applied to the force-bearing clamp 12, so that the animal blood vessel is driven to move, and the situation that the animal blood vessel is subjected to a tensile force is simulated. By means of different storage forces of the elastic piece 21, the influence of animal blood vessels under different pulling forces can be simulated, and the purpose of simulating animal blood vessel pulling and pulling is achieved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. An appliance for establishing animal blood vessel traction injury is characterized by comprising a clamping part (1) and a force application part (2), wherein the clamping part (1) is used for clamping animal blood vessels; the force application part (2) comprises an elastic piece (21) and a pressure measurement sensor (22), the pressure measurement sensor (22) is arranged at one end of the clamping part (1), the elastic force provided by the elastic piece (21) is used for applying force towards the animal blood vessel, and the elastic piece (21) is used for applying force towards the pressure measurement sensor (22).

2. The apparatus for setting up a pulling wound of an animal blood vessel according to claim 1, wherein the holding portion (1) includes a fixing clip (11) and a force-receiving clip (12), the fixing clip (11) holding and fixing the animal blood vessel in a set position, the force-receiving clip (12) holding the animal blood vessel and receiving the elastic force applied by the elastic member (21).

3. The device for establishing a vascular traction injury of an animal according to claim 2, wherein the fixing clamp (11) is arranged in the same way as the stress clamp (12), the fixing clamp (11) comprises two clamping jaws (111) and a limit knob (112), the limit knob (112) penetrates through the two clamping jaws (111), a threaded connection is formed between the limit knob (112) and one clamping jaw (111), and a rotary connection is formed between the limit knob (112) and the other clamping jaw (111).

4. A device for establishing a vascular traction injury of animals according to claim 2 or 3, wherein a first connecting part (113) is extended at one end of the fixing clip (11), and a hollow limiting tube (4) is fixedly connected to the connecting part; the end part of the stress clamp (12) is extended to form a second connecting part (121), the pressure measuring sensor (22) is arranged on the second connecting part (121), and the stress clamp (12) can slide along the axial direction of the limiting pipe (4); the elastic piece (21) is located in the limiting pipe (4), the elastic piece (21) is sleeved with a force application rod (23), two ends of the elastic piece (21) are abutted to the force application rod (23), the force application rod (23) can slide along the limiting pipe (4), and one end of the force application rod (23) located in the limiting pipe (4) is applied with force towards the second connecting portion (121).

5. The device for establishing animal vessel traction injury according to claim 4, wherein the limiting tube (4) has a limiting protrusion (43) extending inwards, and a plurality of teeth (232) are arranged on one side of the force application rod (23) close to the limiting protrusion (43), wherein one of the teeth (232) is clamped with the limiting protrusion (43).

6. The device for establishing animal vessel traction injury according to claim 5, wherein the limit tube (4) is inserted with a trigger (5) in a penetrating manner, one end of the trigger (5) is inserted into the force application rod (23), and the other end of the trigger (5) is abutted against the outer side wall of the limit tube (4).

7. The apparatus for setting up a vascular traction injury of an animal according to claim 4, wherein the end of the limiting tube (4) remote from the force application rod (23) is provided with a limiter which abuts against the animal body or laboratory bench.

8. The device for establishing animal vessel traction injury according to claim 4, wherein one end of the limiting tube (4) close to the force application rod (23) is detachably connected with a mounting seat (32), the mounting seat (32) is connected with a supporting frame (31), and the mounting seat (32) can move along the height direction of the supporting frame (31).

9. A method of creating a vascular traction injury in an animal, comprising the steps of:

determining the position of an animal blood vessel to which the pulling force is applied, and clamping the position of the animal blood vessel to which the pulling force is applied through a clamping part (1);

the elastic piece (21) applies force to the clamping part (1), the clamping part (1) is stressed to drive the animal blood vessel to move, and then the pressure sensor (22) is used for measuring and outputting the force received by the clamping part (1).

10. Method for setting up a pulling wound of an animal blood vessel according to claim 9, characterized in that the animal blood vessel is clamped and fixed by means of a fixing clamp (11), clamped by means of a force clamp (12) and subjected to the elastic force exerted by an elastic member (21).