Small experimental animal perfusion fixing device

Abstract

The utility model belongs to the technical field of fixing devices, particularly relates to a small experimental animal perfusion fixing device, and aims to solve the problems that an existing fixing device is not easy and convenient to operate, not good enough in adjusting effect, inconvenient to use and the like, the following scheme is provided: the small experimental animal perfusion fixing device comprises a support frame, and the support frame consists of a bottom plate, a connecting plate and a mounting plate; the connecting plate is rotationally connected to the top of the bottom plate, and the mounting plate is rotationally connected with the other end of the connecting plate; the fixing device comprises a mounting plate and further comprises a first fixing plate and a second fixing plate, the first fixing plate is fixedly mounted at the top of the mounting plate, and the second fixing plate is fixedly mounted at the top of the first fixing plate. A user can complete operation with one hand, meanwhile, the user can conveniently adjust the angle of the fixed experimental animal through the supporting frame, and the user can be conveniently matched to complete an experiment.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing devices, in particular to a small-sized experimental animal perfusion fixing device. Background Art

[0002] When an organ is removed from the body or left exposed in the body for research, continuous injection of appropriate perfusate or injection of perfusate into the blood vessel through a cannula connected to the blood vessel is called perfusion. When conducting perfusion experiments on small experimental animals, it is necessary to ensure that the small experimental animals are fully fixed, but the existing fixation devices still have the following problems when used:

[0003] When fixing small experimental animals, experimenters usually need to free one hand to clamp the experimental animals in order to reduce the disturbance caused by the experimental animals' struggles. The existing fixing devices are not simple to operate, and it is difficult for experimenters to quickly fix the experimental animals with one hand, and they are not convenient to use.

[0004] The adjustment effect of the existing small experimental animal fixing device is not good enough. The user needs to adjust his posture to complete the experimental operation, which is tiring for a long time and is not conducive to the experimental operation.

[0005] In view of the above problems, the present utility model document proposes a perfusion fixation device for small experimental animals. Utility Model Content

[0006] The utility model aims to solve the shortcomings of the prior art that the fixing device is not simple and convenient to operate, the adjustment effect is not good enough, and it is inconvenient to use, and proposes a small-scale experimental animal perfusion fixing device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A perfusion fixation device for small experimental animals, comprising:

[0009] A support frame, the support frame is composed of a bottom plate, a connecting plate, and a mounting plate. The connecting plate is rotatably connected to the top of the bottom plate, and the mounting plate is rotatably connected to the other end of the connecting plate. The support frame is used to adjust the angle of the fixed small experimental animal;

[0010] It also includes a first fixing plate and a second fixing plate, wherein the first fixing plate is fixedly mounted on the top of the mounting plate, and the second fixing plate is fixedly mounted on the top of the first fixing plate;

[0011] It also includes two sets of first fixing components, which are used to clamp and fix the two sides of the small experimental animal;

[0012] It also includes a second fixing component, which is used to tie up and fix small experimental animals.

[0013] In a possible design, the first fixing assembly includes two adjustment grooves opened on the top of the second fixing plate, and sliders are slidably connected in the two adjustment grooves. A clamping rod is fixedly installed on the top of the two sliders. A double-threaded screw is rotated and penetrated through one side of the second fixing plate, and one end of the double-threaded screw rotates and penetrates the two adjustment grooves. The two sliders are threadedly connected to the double-threaded screw, and the two sliders are respectively located on two opposite threads of the double-threaded screw. The two clamping rods cooperate to complete the clamping of small experimental animals.

[0014] In a possible design, the second fixing component includes two through holes opened on the first fixing plate, a belt is fixedly installed in one of the through holes, a fixing box is fixedly installed at the bottom of the first fixing plate, the fixing box corresponds to the other through hole, an L-shaped card plate is slidably passed through one side of the fixing box, two tension springs are fixedly installed on one side of the L-shaped card plate, the other ends of the two tension springs are fixedly connected to one side of the fixing box, one end of the belt passes through the fixing box, and one end of the L-shaped card plate cooperates with the belt.

[0015] In one possible design, a groove is provided on one side of the belt, and a plurality of triangular ridges are fixedly installed on the inner wall of the groove. The plurality of triangular ridges are evenly arranged and located near the movable end of the belt. An inclined surface is provided at one end of the L-shaped card plate, and the L-shaped card plate engages with the triangular ridges to further lock the belt.

[0016] In a possible design, the outer wall of the clamping rod is provided with a buffer layer of soft rubber material to reduce damage to small animals.

[0017] In a possible design, the distance between the two through holes is greater than the width of the second fixing plate, so as to prevent the second fixing plate from blocking the through holes after installation.

[0018] In a possible design, the inclined sides of the plurality of triangular ridges are all oriented toward the movable end of the belt, and the inclined surface of the L-shaped clamping plate is oriented upward, so as to achieve rapid fixing of the belt.

[0019] In the present application, before use, the user can complete the installation of the support frame, the first fixing plate and the second fixing plate in sequence according to the installation holes opened on the first fixing plate and the second fixing plate. When in use, the user can adjust the angles of the first fixing plate and the second fixing plate through the support frame; when in use, the user can place the small experimental animal to be tested on the top of the second fixing plate, and then the user can fix the experimental animal with one hand and rotate and adjust the two double-threaded screws with the other hand to make the two clamping rods approach each other, clamp and fix the head, body or limb joints of the experimental animal, and preliminarily complete the activity restriction of the experimental animal; then, the user can pick up the belt and wrap it around the experimental animal. The belt is tightened by pulling one end of the belt from the bottom of the first fixing plate, and the fixation of small experimental animals can be completed quickly and conveniently. When the belt is tightened, the multiple triangular ridges on the belt will slide close to one end of the L-shaped pallet, and due to the shape restriction of the triangular ridges, the belt will not be greatly hindered when moving in the tightening direction, but the belt will be unable to move in the loosening direction due to the engagement of the L-shaped pallet, so the tightening effect of the belt can be guaranteed at this time. When the belt needs to be released, the user only needs to push the L-shaped pallet outward, and the L-shaped pallet will be separated from the closely attached triangular ridges to release the fixation of the belt.

[0020] In the utility model, the small experimental animal perfusion fixing device can fix the small experimental animal in the horizontal direction and the vertical direction through the first fixing component and the second fixing component, and the operation is simple and fast, and the user can complete the operation with one hand, which can reduce the possibility of injury to the user and is convenient for use;

[0021] In the utility model, the small experimental animal perfusion fixation device can conveniently adjust the angle of the fixed experimental animal through the support frame, which is convenient for the user to complete the experiment, can reduce the physical exertion in the experiment, and is conducive to the conduct of the experiment;

[0022] In the utility model, the fixing device can fix small experimental animals in the horizontal and vertical directions, and the operation is simple and fast. The user can complete the operation with one hand, which can reduce the possibility of injury to the user and is easy to use. At the same time, through the support frame, the user can easily adjust the angle of the fixed experimental animal, which is convenient for the user to complete the experiment, can reduce physical exertion in the experiment, and is conducive to the conduct of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional structural schematic diagram of a small experimental animal perfusion fixation device proposed by the utility model;

[0024] Figure 2This is a schematic diagram of the disassembled structure of a small experimental animal perfusion fixation device proposed by the utility model;

[0025] Figure 3 This is a schematic structural diagram of a first fixing component of a small experimental animal perfusion fixing device proposed by the utility model;

[0026] Figure 4 This is a schematic cross-sectional structure diagram of a second fixing component of a small experimental animal perfusion fixing device proposed by the utility model;

[0027] Figure 5 This is a schematic diagram of the enlarged structure of part A of a small experimental animal perfusion fixation device proposed by the utility model;

[0028] Figure 6 The utility model provides a schematic diagram of the belt end structure of a small experimental animal perfusion fixation device.

[0029] In the figure: 1. support frame; 2. first fixing plate; 3. second fixing plate; 4. bottom plate; 5. connecting plate; 6. mounting plate; 7. adjusting groove; 8. double-threaded screw; 9. slider; 10. clamping rod; 11. belt; 12. through hole; 13. fixing box; 14. tension spring; 15. L-shaped card plate; 16. triangular ridge; 17. groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] Example 1

[0032] Reference Figure 1-6 , a fixing device, comprising:

[0033] Support frame 1, which is composed of a bottom plate 4, a connecting plate 5, and a mounting plate 6. The connecting plate 5 is rotatably connected to the top of the bottom plate 4, and the mounting plate 6 is rotatably connected to the other end of the connecting plate 5. The support frame 1 is used to adjust the angle of the fixed small experimental animal;

[0034] It also includes a first fixing plate 2 and a second fixing plate 3, and the first fixing plate 2 and the second fixing plate 3 are both provided with corresponding mounting holes. The first fixing plate 2 is fixedly mounted on the top of the mounting plate 6, and the second fixing plate 3 is fixedly mounted on the top of the first fixing plate 2. The first fixing plate 2 and the second fixing plate 3 can be equipped with corresponding baffles using the mounting holes according to actual needs, so as to provide support for the experimental animal after adjusting the angle;

[0035] It also includes two groups of first fixing components, the first fixing components include two adjustment grooves 7 opened on the top of the second fixing plate 3, the two adjustment grooves 7 are slidably connected with sliders 9, the tops of the two sliders 9 are fixedly installed with clamping rods 10, one side of the second fixing plate 3 is rotatably penetrated by a double-threaded screw 8, one end of the double-threaded screw 8 is rotatably penetrated by the two adjustment grooves 7, the two sliders 9 are threadedly connected with the double-threaded screw 8, and the two sliders 9 are respectively located on two opposite threads of the double-threaded screw 8, the two clamping rods 10 cooperate to complete the clamping of small experimental animals, and the two groups of first fixing components are used to clamp and fix the two sides of the small experimental animals;

[0036] It also includes a second fixing component, which includes two through holes 12 opened on the first fixing plate 2, wherein a belt 11 is fixedly installed in one of the through holes 12, a fixing box 13 is fixedly installed at the bottom of the first fixing plate 2, the fixing box 13 corresponds to the other through hole 12, an L-shaped card plate 15 is slidably penetrated on one side of the fixing box 13, two tension springs 14 are fixedly installed on one side of the L-shaped card plate 15, the other ends of the two tension springs 14 are fixedly connected to one side of the fixing box 13, one end of the belt 11 penetrates the fixing box 13, and one end of the L-shaped card plate 15 cooperates with the belt 11, and the second fixing component is used to tie up and fix small experimental animals;

[0037] Furthermore, in this embodiment, a groove 17 is opened on one side of the belt 11, and a plurality of triangular ridges 16 are fixedly installed on the inner wall of the groove 17. The plurality of triangular ridges 16 are evenly arranged and the plurality of triangular ridges 16 are located near the movable end of the belt 11. An inclined surface is provided at one end of the L-shaped card plate 15, and the L-shaped card plate 15 is engaged with the triangular ridges 16 to further lock the belt 11.

[0038] In this embodiment, the outer wall of the clamping rod 10 is provided with a buffer layer of soft rubber material to reduce the damage caused to small animals.

[0039] In this embodiment, the distance between the two through holes 12 is greater than the width of the second fixing plate 3 , so as to prevent the second fixing plate 3 from blocking the through holes 12 after installation.

[0040] In this embodiment, the inclined surfaces of the plurality of triangular ridges 16 are all oriented toward the movable end of the belt 11 , and the inclined surface of the L-shaped clamping plate 15 is oriented upward, so as to realize the rapid fixation of the belt 11 .

[0041] The present application can be used in the field of perfusion technology for small experimental animals, and can also be used in other fields applicable to the present application.

[0042] Example 2

[0043] refer to Figure 1 , 35. Improved on the basis of Example 1: a small experimental animal perfusion fixation device, which is applied to the field of small experimental animal perfusion technology;

[0044] In this embodiment, a plurality of holes are formed on the bottom plate 4 for facilitating fixation to the placement plane.

[0045] The working principle and use process of the present technical solution are as follows: before use, the user can install the support frame 1, the first fixing plate 2 and the second fixing plate 3 in sequence according to the installation holes opened on the first fixing plate 2 and the second fixing plate 3, and the user can adjust the angles of the first fixing plate 2 and the second fixing plate 3 through the support frame 1 when in use; when in use, the user can place the small experimental animal to be tested on the top of the second fixing plate 3, and then the user can fix the experimental animal with one hand and rotate and adjust the two double-threaded screws 8 with the other hand, so that the two clamping rods 10 can be brought close to each other, and the head, body or limb joints of the experimental animal can be clamped and fixed, thereby preliminarily completing the activity restriction of the experimental animal; then, the user can pick up the belt 11 and wrap it around the body of the experimental animal When the belt 11 needs to be released, the user only needs to push the L-shaped card plate 15 outwards, at which time the L-shaped card plate 15 is separated from the tightly attached three-sided ridged ridges 16, and the fixation of the belt 11 can be released.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A perfusion fixation device for small experimental animals, characterized in that: include: A support frame (1), the support frame (1) is composed of a bottom plate (4), a connecting plate (5), and a mounting plate (6), the connecting plate (5) is rotatably connected to the top of the bottom plate (4), the mounting plate (6) is rotatably connected to the other end of the connecting plate (5), and the support frame (1) is used to adjust the angle of a fixed small experimental animal; It also comprises a first fixing plate (2) and a second fixing plate (3), wherein the first fixing plate (2) is fixedly mounted on the top of the mounting plate (6), and the second fixing plate (3) is fixedly mounted on the top of the first fixing plate (2); It also includes two sets of first fixing components, which are used to clamp and fix the two sides of the small experimental animal; It also includes a second fixing component, which is used to tie up and fix small experimental animals.

2. A small experimental animal perfusion fixation device according to claim 1, characterized in that: The first fixing assembly comprises two adjustment grooves (7) opened on the top of the second fixing plate (3), and sliders (9) are slidably connected in the two adjustment grooves (7), and clamping rods (10) are fixedly installed on the tops of the two sliders (9). A double-threaded screw (8) is rotatably passed through one side of the second fixing plate (3), and one end of the double-threaded screw (8) is rotatably passed through the two adjustment grooves (7). The two sliders (9) are threadedly connected to the double-threaded screw (8), and the two sliders (9) are respectively located on two opposite threads of the double-threaded screw (8), and the two clamping rods (10) cooperate with each other to complete the clamping of small experimental animals.

3. A small experimental animal perfusion fixation device according to claim 1, characterized in that: The second fixing component comprises two through holes (12) opened on the first fixing plate (2), a belt (11) is fixedly installed in one of the through holes (12), a fixing box (13) is fixedly installed at the bottom of the first fixing plate (2), the fixing box (13) corresponds to the other through hole (12), an L-shaped card plate (15) is slidably passed through one side of the fixing box (13), two tension springs (14) are fixedly installed on one side of the L-shaped card plate (15), the other ends of the two tension springs (14) are fixedly connected to one side of the fixing box (13), one end of the belt (11) passes through the fixing box (13), and one end of the L-shaped card plate (15) cooperates with the belt (11).

4. A small experimental animal perfusion fixation device according to claim 3, characterized in that: A groove (17) is provided on one side of the belt (11), and a plurality of triangular ridges (16) are fixedly mounted on the inner wall of the groove (17). The plurality of triangular ridges (16) are evenly arranged and are located near a movable end of the belt (11). An inclined surface is provided at one end of the L-shaped card plate (15), and the L-shaped card plate (15) is engaged with the triangular ridges (16) to further lock the belt (11).

5. A small experimental animal perfusion fixation device according to claim 2, characterized in that: The outer wall of the clamping rod (10) is provided with a buffer layer made of soft rubber material, so as to reduce the damage caused to small animals.

6. A small experimental animal perfusion fixation device according to claim 3, characterized in that: The distance between the two through holes (12) is greater than the width of the second fixing plate (3), so as to prevent the second fixing plate (3) from blocking the through holes (12) after installation.

7. A small experimental animal perfusion fixation device according to claim 4, characterized in that: The inclined surfaces of the plurality of triangular convex strips (16) are all oriented toward the movable end of the belt (11), and the inclined surface of the L-shaped clamping plate (15) is oriented upwards, so as to realize rapid fixing of the belt (11).

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