Animal hemorrhagic shock model making table facilitating femoral artery catheterization

Abstract

An animal hemorrhagic shock model modeling platform facilitating femoral artery catheterization comprises a modeling platform body, limb fixing columns are arranged at the four corners of a platform face of the modeling platform body, and a head fixing column is arranged in the middle of the upper portion of the modeling platform body; two groups of lower limb fixing components are also arranged on the table surface of the modeling table body; traction mechanisms are arranged on the left side and the right side of the lower portion of the modeling table body, each traction mechanism comprises two drag hook traction assemblies, the two drag hook traction assemblies are symmetrically arranged, each drag hook traction assembly comprises a fixing column, the fixing columns are fixed to the table top of the modeling table body, and penetrating sleeves are fixed to the upper ends of the fixing columns. In conclusion, the two groups of retractor traction assemblies which are symmetrically arranged are used for pulling cut skin tissue so as to expose the visual field, the two transverse tube bodies are respectively used for washing and sucking so as to clean the operation visual field and inject medicine, the magnifying glass is convenient for observation, the overall structural design is reasonable, and the success rate of intubation and the modeling efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the field of basic experimental technology, and in particular relates to an animal hemorrhagic shock model making platform which is convenient for femoral artery catheterization. Background Art

[0002] Hemorrhagic shock is a syndrome caused by a large amount of blood loss from the body due to trauma, resulting in insufficient effective circulating blood volume and peripheral circulatory failure. It can lead to hemodynamic instability, insufficient tissue perfusion, cellular hypoxia, organ damage and death. It is one of the main causes of death in patients after severe trauma. In order to simulate the pathological process of hemorrhagic shock in patients, experimental animals (rats, mice, etc.) are usually used in basic research to model, and then physiological indicators and molecular biological indicators are tested to study the pathogenesis and possible treatment methods. Therefore, the establishment of an animal hemorrhagic shock model is of great clinical significance for the study and treatment of hemorrhagic shock.

[0003] The current process of hemorrhagic shock modeling is as follows: after gas anesthesia of rats, the rats are fixed in a supine position on the experimental table, the inguinal area is prepared and disinfected, a 1 cm oblique incision is made along the groin, the soft tissue is bluntly separated, and then the lateral femoral artery, femoral vein and femoral nerve are freed, and the femoral artery is ligated from the distal end with a 5-0 surgical suture, and the femoral artery is lifted from the proximal end with another 5-0 surgical suture, and then the suture is fixed with a hemostatic forceps, and a "V"-shaped incision is cut on the femoral artery between the two sutures, and then a heparin-treated puncture tube is inserted into the femoral artery, and the puncture tube is connected to an external syringe for suction; the other side is cannulated in the same way, and an external monitor is connected to monitor arterial blood pressure, 40% of the blood is drained within 20 minutes, and the blood pressure is monitored, and then the blood vessels are ligated and the incision is sutured to complete the modeling.

[0004] Currently, it is very difficult to place an arterial catheter during modeling. Since the arteries of rats or mice are very thin, with a diameter of about 1 mm, the operation usually needs to be performed under a microscope. The surrounding small blood vessels may be damaged during the process of arterial separation and catheterization. Bleeding from small blood vessels will affect the observation of the surgical field. At the same time, lidocaine needs to be sprayed to dilate the blood vessels after the arterial sheath is stripped off. However, there is currently no special modeling table to assist in the modeling of animals with hemorrhagic shock. Utility Model Content

[0005] The utility model aims to provide an animal hemorrhagic shock model making platform which is convenient for femoral artery catheterization, and solves the technical problem that the prior art has no special model making platform for assisting hemorrhagic shock animals.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A modeling platform for an animal hemorrhagic shock model convenient for femoral artery catheterization comprises a modeling platform body, limb fixing columns are arranged at the four corners of the platform surface of the modeling platform body, a head fixing column is arranged at the middle position of the upper part of the modeling platform body; two groups of lower limb fixing components are also arranged on the platform surface of the modeling platform body;

[0008] The left and right sides of the lower part of the modeling platform are both provided with pulling mechanisms, each group of pulling mechanisms includes two hook pulling assemblies, the two hook pulling assemblies are symmetrically arranged, each hook pulling assembly includes a fixed column, the fixed column is fixed to the table surface of the modeling platform, a sleeve is fixed on the upper end of the fixed column, a long rod is inserted in the sleeve, a top pressure screw is threadedly connected to the sleeve, the end of the top pressure screw is in top pressure contact with the outer wall of the long rod, a transverse tube body is fixed to the end of the long rod, a plurality of round holes are evenly distributed on the transverse tube body, a plurality of hooks are connected to the transverse tube body, and all the hooks are arranged side by side at intervals; a liquid injection tube is connected to the transverse tube body of one of the hook pulling assemblies, and a liquid extraction tube is connected to the transverse tube body of the other hook pulling assembly;

[0009] A liquid injection pump, a pure water tank and a lidocaine tank are also provided on the modeling platform. The pure water tank is connected to the liquid inlet of the liquid injection pump through a first pipeline, and the lidocaine tank is connected to the liquid inlet of the liquid injection pump through a second pipeline. The first pipeline and the second pipeline are both provided with control valves. The liquid outlet of the liquid injection pump is connected to the liquid injection pipe, and the liquid injection pipe is provided with a liquid injection valve.

[0010] A collecting syringe is also arranged on the modeling platform, and an injection connector of the collecting syringe is connected with an arterial cannula.

[0011] Furthermore, the two groups of lower limb fixation assemblies are symmetrically arranged on the left and right, and each group of lower limb fixation assemblies includes an arc-shaped clamping plate, one end of which is hingedly mounted on the modeling platform, and a buckle structure is correspondingly arranged between the other end of the arc-shaped clamping plate and the modeling platform, and an operating handle is arranged on the arc-shaped clamping plate.

[0012] Furthermore, the inner arc of the arc-shaped clamping plate is provided with a soft protective layer.

[0013] Furthermore, magnifying glasses are fixed on the two limb fixing columns located at the lower part of the modeling platform.

[0014] Furthermore, light screens are provided on the left and right sides of the lower part of the modeling platform.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model uses two sets of symmetrically arranged retractor traction components to pull the incised skin tissue to expose the field of view; the two horizontal tubes are used for flushing and suction respectively to clear the surgical field of view and inject medicine; the magnifying glass facilitates observation; the overall structural design is reasonable, thereby improving the intubation success rate and modeling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic structural diagram of a modeling platform for animal hemorrhagic shock model that is convenient for femoral artery catheterization according to the utility model;

[0018] Figure 2 It is a structural schematic diagram of the pulling mechanism. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The present invention is further described in detail below in conjunction with the embodiments.

[0021] like Figure 1 and Figure 2 As shown, a specific embodiment of an animal hemorrhagic shock model making platform for convenient femoral artery catheterization provided by the utility model is as follows:

[0022] A modeling platform for an animal hemorrhagic shock model convenient for femoral artery catheterization, comprising a modeling platform body 1, limb fixing columns 2 are arranged at the four corners of the platform surface of the modeling platform body 1, and a head fixing column 3 is arranged at the middle position of the upper part of the modeling platform body 1; two groups of lower limb fixing components are also arranged on the platform surface of the modeling platform body 1;

[0023] A pulling mechanism 4 is provided on the left and right sides of the lower part of the modeling platform body 1. Each group of pulling mechanisms 4 includes two hook pulling assemblies. The two hook pulling assemblies are symmetrically arranged. Each hook pulling assembly includes a fixed column 5. The fixed column 5 is fixed to the table surface of the modeling platform body 1. A sleeve 6 is fixed to the upper end of the fixed column 5. A long rod 7 is inserted in the sleeve 6. A top pressure screw 8 is threadedly connected to the sleeve 6. The end of the top pressure screw 8 is in top pressure contact with the outer wall of the long rod 7. A transverse tube body 9 is fixed to the end of the long rod 7. A plurality of round holes 10 are evenly distributed on the transverse tube body 9. A plurality of hooks 11 are connected to the transverse tube body 9. All the hooks 11 are arranged side by side at intervals. The transverse tube body 9 of one hook pulling assembly is connected to a liquid injection tube 12, and the transverse tube body 9 of another hook pulling assembly is connected to a liquid extraction tube 13.

[0024] A liquid injection pump 14, a pure water tank 15 and a lidocaine tank 16 are also provided on the modeling platform 1. The pure water tank 15 contains water, and the lidocaine tank 16 contains lidocaine solution. The pure water tank 15 is connected to the liquid inlet of the liquid injection pump 14 through a first pipeline 17, and the lidocaine tank 16 is connected to the liquid inlet of the liquid injection pump 14 through a second pipeline 18. The first pipeline 17 and the second pipeline 18 are both provided with a control valve 19. The liquid outlet of the liquid injection pump 14 is connected to the liquid injection pipe 12, and the liquid injection pipe 12 is provided with a liquid injection valve 20.

[0025] A collecting syringe 21 is also provided on the modeling platform 1 , and an arterial cannula 22 is connected to the injection connector of the collecting syringe 21 .

[0026] When using the animal hemorrhagic shock model modeling platform for femoral artery catheterization of the present embodiment, the four limbs of the mouse are first fixed to the limb fixing columns 52 at the four corners by tethers, and then the teeth of the mouse are fixed to the head fixing column 53 by using rubber bands or thin ropes; then two sets of lower limb fixing components are used to fix the legs of the mouse to prevent shaking during puncture from affecting the operation, and the lower limb fixing component 25 includes an arc-shaped clamping plate 26, one end of which is hingedly mounted on the modeling platform body 1, and a buckle is correspondingly arranged between the other end of the arc-shaped clamping plate 26 and the modeling platform body 1. Structure 27, an operating handle 28 is provided on the arc-shaped clamping plate 26. When fixing the mouse's legs, the mouse's legs are located under the arc-shaped clamping plate 26, and then the arc-shaped clamping plate 26 is rotated around the hinge point. The other end of the arc-shaped clamping plate 26 is connected to the modeling platform body 1 through the buckle structure 27. The mouse's legs are pressed and fixed on the modeling platform body 1 through the arc-shaped clamping plate 26. In order to improve the comfort of the contact between the arc-shaped clamping plate 26 and the legs and prevent the mouse from shaking due to discomfort caused by pressing, a soft protective layer can be provided on the inner arc of the arc-shaped clamping plate 26. The soft protective layer can be rubber or sponge, etc.

[0027] Then, a 1 cm small incision is made in the skin of the groin area of ​​the leg, and then the top pressure screw 8 is loosened, the long rod 7 is moved, and the two sides of the small incision are pulled by the hooks 11 of the two hook pulling assemblies. The hooks 11 pull the cut tissue around the artery outward, and then the top pressure screw 8 is tightened to fix the long rod 7, and the distal end of the artery is ligated. Then, the arterial sheath is peeled off with micro forceps. If bleeding occurs during the peeling process, the control valve 19 and the injection valve 20 on the first pipeline 17 can be opened, and the injection pump 14 can be started. The injection pump 14 pumps the water in the pure water tank 15 into the injection tube 12, and then the water enters the transverse tube body 9 through the injection tube 12, and is sprayed out through the circular hole 10 on the transverse tube body 9 to flush the bleeding, and the other transverse tube body 9 is connected to the negative pressure suction device through the suction tube 13, and the transverse tube body 9 absorbs the flushing liquid;

[0028] After stripping off the arterial sheath, close the control valve 19 on the first pipe 17, open the control valve 19 on the second pipe 18, and the injection pump 14 draws the lidocaine solution into the transverse tube body 9, which then flows from the transverse tube body 9 to the blood vessels, and the lidocaine solution is used to dilate the blood vessels; then use the arterial cannula 22 to insert the artery, pull the pull rod of the collecting syringe 21, and the arterial blood can be sucked, and the amount of blood drawn can be known by the scale on the collecting syringe 21.

[0029] In addition, in order to facilitate the insertion of the arterial cannula 22, a magnifying glass 23 can be set on the two limb fixing columns 52 at the bottom of the modeling platform 1, and a light screen 24 is set on the left and right sides of the bottom of the modeling platform 1 to supplement light for easy observation.

[0030] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modeling platform for animal hemorrhagic shock model convenient for femoral artery catheterization, characterized in that: It includes a modeling platform, wherein limb fixing columns are arranged at the four corners of the modeling platform, and a head fixing column is arranged at the middle position of the upper part of the modeling platform; and two groups of lower limb fixing components are also arranged on the modeling platform; The left and right sides of the lower part of the modeling platform are both provided with pulling mechanisms, each group of pulling mechanisms includes two hook pulling assemblies, the two hook pulling assemblies are symmetrically arranged, each hook pulling assembly includes a fixed column, the fixed column is fixed to the table surface of the modeling platform, a sleeve is fixed on the upper end of the fixed column, a long rod is inserted in the sleeve, a top pressure screw is threadedly connected to the sleeve, the end of the top pressure screw is in top pressure contact with the outer wall of the long rod, a transverse tube body is fixed to the end of the long rod, a plurality of round holes are evenly distributed on the transverse tube body, a plurality of hooks are connected to the transverse tube body, and all the hooks are arranged side by side at intervals; a liquid injection tube is connected to the transverse tube body of one of the hook pulling assemblies, and a liquid extraction tube is connected to the transverse tube body of the other hook pulling assembly; A liquid injection pump, a pure water tank and a lidocaine tank are also provided on the modeling platform. The pure water tank is connected to the liquid inlet of the liquid injection pump through a first pipeline, and the lidocaine tank is connected to the liquid inlet of the liquid injection pump through a second pipeline. The first pipeline and the second pipeline are both provided with control valves. The liquid outlet of the liquid injection pump is connected to the liquid injection pipe, and the liquid injection pipe is provided with a liquid injection valve. A collecting syringe is also arranged on the modeling platform, and an injection connector of the collecting syringe is connected with an arterial cannula.

2. The animal hemorrhagic shock model making platform for convenient femoral artery catheterization according to claim 1, characterized in that: The two groups of lower limb fixation components are arranged symmetrically on the left and right. Each group of lower limb fixation components includes an arc-shaped clamping plate. One end of the arc-shaped clamping plate is installed on the modeling platform body by a hinged manner. A buckle structure is correspondingly arranged between the other end of the arc-shaped clamping plate and the modeling platform body, and an operating handle is arranged on the arc-shaped clamping plate.

3. The animal hemorrhagic shock model making platform for convenient femoral artery catheterization according to claim 2, characterized in that: The inner arc of the arc-shaped pallet is provided with a soft protective layer.

4. The animal hemorrhagic shock model making platform for convenient femoral artery catheterization according to claim 3, characterized in that: Magnifying glasses are fixed on two limb fixing columns located at the lower part of the modeling platform body.

5. The animal hemorrhagic shock model making platform for convenient femoral artery catheterization according to claim 4, characterized in that: Light screens are arranged on the left and right sides of the lower part of the modeling platform.

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