CN219439528U - Mouse tail intravenous injection device - Google Patents
Mouse tail intravenous injection device Download PDFInfo
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- CN219439528U CN219439528U CN202222023146.0U CN202222023146U CN219439528U CN 219439528 U CN219439528 U CN 219439528U CN 202222023146 U CN202222023146 U CN 202222023146U CN 219439528 U CN219439528 U CN 219439528U
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Abstract
The utility model relates to a mouse tail intravenous injection device, wherein the side wall of a conical barrel at one end of a barrel body is an arc-shaped curved surface, and the side wall of the conical barrel can be effectively matched with the curved surface of the head shape of a rat, so that the respiration of the rat can be effectively ensured, the trunk of the rat can be effectively fixed, and the movement direction of the rat is changed into the forward movement in a single direction; the arc-shaped curved surface is matched with the head shape curved surface of the rat, accords with the mechanical design principle, can reduce the compression on the face of the rat when the rat struggles and avoids the injury of the rat; the fixing plate and the cylinder are clamped in the axial direction of the cylinder, so that the rat is firmly fixed in the cylinder; the fixing plate moves in the bayonet along the radial direction of the cylinder, so that the size of the position of the rat in the cylinder can be adjusted, and the rat can be conveniently controlled to enter and exit; and the cylinder body is convenient to clean; the fixing device is simple and scientific in structure, convenient to prepare, convenient to use and excellent in fixing effect, and can select a cylinder with a proper size according to the body shape of a rat, so that the fixing effect on the rat is optimized.
Description
Technical Field
The utility model relates to the technical field of medical experimental equipment, in particular to a mouse tail intravenous injection device.
Background
With the development of science and medicine, more and more drugs are used to improve human quality of life and treat human diseases. Ethical prohibits any study directly in humans that may be potentially harmful to humans, and experimental animals are therefore widely used in preclinical studies. Rats are widely used in research in the fields of foods, medicines, biological products, life research and the like due to their physiological functions similar to humans, short reproduction period and low feeding cost, wherein tail intravenous injection of rats is a common research means.
The rat tail intravenous injection fixing device can effectively improve the success rate of experiments and the speed of the experiments, and is a common device in a laboratory. The tail vein injection is characterized in that the tail of a rat is only required to be fixed, an operator clamps the tail of the rat by one hand, vein blood is driven to the tail of the rat by the other hand, vein expansion can be achieved, puncture injection can be accurately carried out, the hand clamping the tail vein is slightly loosened after needle insertion, and medicines can smoothly enter the blood circulation of the rat. By utilizing the characteristic of the sex of the rat in drilling holes and combining the cylinder body and the fixed flat plate, the aim of fixing the trunk of the rat and facilitating tail vein injection can be achieved.
However, current rat tail intravenous fixation devices have several drawbacks. For example, chinese patent publication No. CN110974472a discloses a fixing device for intravenous injection of a tail of a mouse and a method for using the same, which has the following drawbacks: the structure is too complicated, the movement and the use are inconvenient, the cost is too high, and the restriction is relatively large in the operation process. For example, chinese patent document CN210811719U discloses a rat tail intravenous injection fixator, which can firmly fix the tail of a rat, reduce tail movement, set a tail clip at the tail hole of the back cover to block tail vein blood from flowing back to the heart, and accumulate more vein blood in the tail vein, so that the vessel is dilated, the vessel is more clearly visible, and the accuracy and efficiency of needle insertion are improved; but suffer from the following drawbacks: for rats with different ages and weights, the diameters of the rat tails are different, and the rat tail clip with a single caliber cannot be suitable for all experimental rats; in addition, the tail clip is not beneficial to the central reflux of the medicine after intravenous injection while blocking tail veins.
Disclosure of Invention
Aiming at the problems, the utility model aims to provide the mouse tail intravenous injection device, which has simple and scientific structure, can be prepared manually, avoids damage to rats, is convenient for fixing the trunk of the rats, does not influence tail intravenous injection, and reduces the cost.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a tail vein injection device for a mouse, comprising:
the two ends of the cylinder body are opened, one end of the cylinder body is a conical cylinder, the side wall of the conical cylinder body is an arc-shaped curved surface, and the side wall of the other end of the cylinder body is provided with a bayonet;
the fixing plate is provided with a clamping groove corresponding to the bayonet, and the bayonet is clamped in the clamping groove.
Preferably, the conical barrel is a conical barrel.
Preferably, the other end of the cylinder is a cylinder.
Preferably, the ratio of the conical barrel tip diameter to the barrel diameter is 1:8.
preferably, the ratio of the diameter of the bottom end of the conical cylinder to the diameter of the cylinder is 1:2.
preferably, the fixing plate is a flat plate.
Preferably, the central axis of the cylinder is perpendicular to the fixing plate.
Preferably, the clamping groove is a rectangular groove.
Preferably, the number of the bayonets is two, and the bayonets are respectively arranged on the side walls of the two sides of the cylinder.
Preferably, both said bayonets are symmetrical.
Due to the adoption of the technical scheme, the utility model has the following advantages:
the mouse tail intravenous injection device provided by the utility model has the advantages of simple and scientific structure, convenience in preparation, convenience in use and excellent fixing effect, and can select a cylinder with a proper size according to the body shape of a rat, so that the fixing effect on the rat is optimized.
According to the mouse tail intravenous injection device provided by the utility model, the side wall of the conical barrel at one end of the barrel is an arc-shaped curved surface, so that the side wall of the conical barrel can be effectively matched with the curved surface of the head shape of a rat, the respiration of the rat can be effectively ensured, the trunk of the rat can be effectively fixed, and the movement direction of the rat is changed into the single-direction forward movement; in addition, the arc curved surface is matched with the head shape curved surface of the rat, so that the mechanical design principle is met, the compression on the face of the rat when the rat struggles can be reduced, and the rat is prevented from being injured.
According to the mouse tail intravenous injection device provided by the utility model, the fixing plate and the cylinder body are clamped in the axial direction of the cylinder body, so that a rat is firmly fixed in the cylinder body; in addition, the fixing plate moves in the bayonet along the radial direction of the cylinder, and the size of the position of the rat in the cylinder can be adjusted, so that the rat can be conveniently controlled to enter and exit; in addition, the cylinder body is convenient to clean.
The ratio of the diameter of the top end of the conical cylinder to the diameter of the cylinder body of the mouse tail intravenous injection device provided by the utility model can be 1:8, the ratio of the diameter of the bottom end of the conical cylinder to the diameter of the cylinder body can be 1:2, in a proper area in the conical cylinder, the legs of the rat are just in a state of being capable of contacting the cylinder body but not being stressed well, so that struggling of the rat is reduced; meanwhile, the surface of the cylinder body can be smoothly treated, so that the friction force between the rat and the cylinder body is effectively reduced, and the rat is restrained from struggling.
Drawings
Fig. 1 is a schematic structural view of a barrel of a mouse tail intravenous injection device according to an embodiment of the present utility model;
fig. 2 is a schematic structural view of a fixing plate of the mouse tail vein injection device according to the embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a mouse tail vein injection device according to the embodiment of the present utility model.
The reference numerals in the drawings:
1 is a cylinder, 101 is an arc-shaped curved surface, 102 is a bayonet, 2 is a fixed plate, and 201 is a clamping groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "front", "rear", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Aiming at the problems that the rat tail intravenous injection fixing device in the prior art is complex in structure, inconvenient to operate, high in cost, easy to hurt rats, affects tail intravenous injection, cannot be suitable for rats with different sizes and the like, the cylinder body and the fixing plate are connected in a clamping way through the bayonet and the clamping groove, so that the structure can be simplified, the manual preparation is convenient, and the cost is reduced; through setting up barrel one end to the toper section of thick bamboo of arc curved surface lateral wall, can avoid causing the injury to the rat, be convenient for fix rat truck itself, and do not influence tail intravenous route.
The following describes the tail vein injection device for mice according to the embodiment of the present utility model in detail with reference to the accompanying drawings.
Examples
The mouse tail intravenous injection device provided by the embodiment comprises a barrel 1 and a fixing plate 2, wherein as shown in fig. 1, two ends of the barrel 1 are opened, one end of the barrel is a conical barrel, the side wall of the conical barrel is an arc-shaped curved surface 101, and a bayonet 102 is arranged on the side wall of the other end of the conical barrel; as shown in fig. 2, the fixing plate 2 is provided with a locking groove 201, and as shown in fig. 3, the bayonet 102 is locked in the locking groove 201.
The mouse tail intravenous injection device has the advantage that the cylinder body 1 is convenient to clean. And the cylinder body 1 with proper size can be selected according to the body type of the rat, so that the device is suitable for firmly fixing rats with different body types. The side wall of the conical cylinder at one end of the cylinder body 1 is an arc-shaped curved surface 101, and the fluid curved surface of the conical cylinder can be effectively matched with the head-shaped curved surface of a rat, so that the respiration of the rat is effectively ensured, the compression on the face of the rat when the rat struggles is reduced, and the rat is prevented from being injured; but also effectively fix the trunk of the rat, and promote the forward movement of the rat in a single direction.
According to the mouse tail intravenous injection device, the fixing plate 2 and the cylinder body 1 are clamped in the axial direction of the cylinder body 1, so that a rat can be firmly fixed in the cylinder body 1.
According to the mouse tail intravenous injection device, the fixing plate 2 moves radially in the bayonet 102 along the barrel 1, so that the size of the position of the rat in the barrel can be adjusted, and the rat can be conveniently controlled to enter and exit.
Specifically, for example, referring to fig. 3, when the fixing plate 2 moves in the bayonet 102 through the slot 201 and moves in the radial direction of the barrel 1, the size of the inside diameter of the rat passing through the bayonet 102 in the barrel 1 can be adjusted, so that whether the rat passes through the position can be controlled.
Referring to fig. 1, the tapered cylinder may be a conical cylinder. The other end of the cylinder body 1 can be a cylinder, and the conical cylinder and the cylinder can be integrally connected to form the cylinder body 1 with an integral structure. The ratio of the diameter of the conical barrel tip to the diameter of the barrel may be 1:8, the ratio of the diameter of the bottom end of the conical cylinder to the diameter of the cylinder body can be 1:2, in a suitable region within the cone, for example in a ratio of cone diameter to cylinder diameter of 1: at the 4 position, the legs of the rat can be better in a state of contacting the cylinder body but not being stressed well, so that the struggling of the rat is optimally reduced.
The bayonet 102 may be a rectangular opening formed in the sidewall of the barrel. The number of the bayonets 102 can be two, the bayonets 102 are respectively arranged on the side walls of the two sides of the cylinder, and the two bayonets 102 can be symmetrical by taking the central axis of the cylinder body 1 as a symmetry axis.
Referring to fig. 2, the fixing plate 2 may be a hard flat plate, may be a rectangular plate such as a square plate, and the minimum side edge of the fixing plate 2 is longer than the outer diameter of the cylinder on the cylinder body 1. The card slot 201 may be a rectangular recess. The clamping groove 201 may be formed at the middle of one side of the fixing plate 2. The length of the side of the fixing plate 2 parallel to the depth direction of the clamping groove 201 may be greater than the depth of the clamping groove 201 and may be less than twice the depth of the clamping groove 201.
Referring to fig. 3, central axes of the cylinder 1 and the fixing plate 2 can be coincident, so that the overall balance stability of the device is improved.
The mouse tail intravenous injection device of the embodiment can be prepared and used as follows: firstly, taking a cylinder body 1 with a conical cylinder at one end, and cutting two symmetrical bayonets 102 at the thicker end of the other side of the cylinder body 1; taking a hard flat plate as a fixed plate 2, and cutting a rectangular clamping groove 201 in the middle of the fixed plate 2; then put the rat into barrel 1 to pull out the rat tail and put the barrel 1 other end drum, again with the draw-in groove 201 card of fixed plate 2 go into the bayonet socket 102 of barrel 1 lateral wall for insert fixed plate 2 on the barrel 1, the rat can fix in barrel 1. When in use, the cylinder body 1 can move and rotate according to the experimental environment.
The cylinder 1 can be a common bottle which meets the requirements of the body length and the body shape of a rat, such as a mineral water bottle, a clean detergent bottle and the like, and the bottle bottom can be sawn off after removing the bottle cap when the bottle is used.
The bayonet 102 may have another shape, and the fixing plate 2 may be inserted along the bayonet 102, and the bayonet 102 may engage with the locking groove 201 of the fixing plate 2.
The fixing plate 2 may be a cardboard, a plastic plate, a wood plate, or the like. The locking groove 201 of the fixing plate 2 may be engaged with the bayonet 102 of the cylinder 1.
Therefore, the mouse tail intravenous injection device of the embodiment is common in use materials, easy to obtain, good in fixing effect, simple and convenient to operate, free of the influence of time and space, capable of quickly preparing the mouse tail intravenous injection device, free of assistance of an assistant, convenient for animal experiments and convenient for fixing the trunk of a rat. The barrel 1 material used by the mouse tail vein injection device preferably has a smooth effect, so that the movement of a rat is further limited, the movement of the rat is reduced, the injection operation of the tail vein is safer, and the risk of sharp-wound of operators is reduced.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A tail vein injection device for a mouse, comprising:
the cylinder body (1) is provided with openings at two ends, one end of the cylinder body is a conical cylinder, the side wall of the conical cylinder is an arc-shaped curved surface (101), and the side wall of the other end of the cylinder body is provided with a bayonet (102);
and a fixing plate (2) provided with a clamping groove (201) corresponding to the bayonet (102), wherein the bayonet (102) is clamped in the clamping groove (201).
2. The tail vein injection device according to claim 1, wherein said tapered barrel is a conical barrel.
3. The mouse tail vein injection device according to claim 2, wherein the other end of the cylinder (1) is a cylinder.
4. A tail vein injection device according to claim 3 wherein the ratio of the conical barrel tip diameter to the barrel (1) diameter is 1:8.
5. the tail vein injection device according to claim 4, wherein the ratio of the diameter of the bottom end of the cone to the diameter of the cylinder (1) is 1:2.
6. the tail vein injection device for mice according to claim 5, wherein said fixing plate (2) is a flat plate.
7. The mouse tail vein injection device according to claim 6, wherein a central axis of the cylinder (1) is perpendicular to the fixing plate (2).
8. The tail vein injection device according to claim 6, wherein the clamping groove (201) is a rectangular groove.
9. The mouse tail vein injection device according to claim 8, wherein the number of the bayonets (102) is two, and the bayonets are respectively arranged on two side walls of the cylinder.
10. The tail vein injection device according to claim 9, characterized in that two said bayonets (102) are symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222023146.0U CN219439528U (en) | 2022-08-02 | 2022-08-02 | Mouse tail intravenous injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222023146.0U CN219439528U (en) | 2022-08-02 | 2022-08-02 | Mouse tail intravenous injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219439528U true CN219439528U (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222023146.0U Active CN219439528U (en) | 2022-08-02 | 2022-08-02 | Mouse tail intravenous injection device |
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| CN (1) | CN219439528U (en) |
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- 2022-08-02 CN CN202222023146.0U patent/CN219439528U/en active Active
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