CN215458923U - Rat experiment fixer - Google Patents

Abstract

The utility model provides a rat experiment fixer, which comprises a support table and a rat chamber, wherein the support table is provided with a connecting part and an operation hole, and the connecting part is used for fixedly connecting the rat chamber in a detachable connection mode; the mouse cabin comprises a head and a body, the head is provided with a head hole and a shading area, the body is provided with a locking piece, a tail hole and a belly hole, and the belly hole corresponds to the operating hole when the mouse cabin is fixedly connected to the supporting table. The rat experiment fixator provided by the utility model can reduce or even avoid mechanical damage to rats when the rats are fixed, can reduce the fear of the rats, ensures the operation safety of experimenters, and has the advantages of convenience in disassembly and assembly, easiness in adjusting the specifications of a rat bin, suitability for fixing rats with different body shapes and the like.

Description

Rat experiment fixer

Technical Field

The utility model relates to the technical field of biological experiment instruments, in particular to a rat experiment fixator.

Background

The background of the related art of the present invention will be described below, but the description does not necessarily constitute the prior art of the present invention.

In the toxicological evaluation of drugs, veterinary drugs and pesticides, and in various biological teaching and research experiments, animal experiments occupy an important position, and rats, which are one of the most important model animals of animal experiments, are often used as experimental objects for relevant teaching and research of physiology, pathophysiology, pharmacology and toxicology. The term "rat" as used herein refers to a rat of an experimental animal belonging to the order rodentia, the family muridae, the genus rats, and generally includes SD rats and wistar rats, etc. The method is different from a mouse in that the mouse belongs to rodentia, muridae and murines, the volume of the rat is far larger than that of the mouse, and a larger amount of research materials such as blood, body fluid and the like can be provided in the experimental process; it is different from guinea pigs, which belong to the order rodentia, the family ragmitidae, the genus ragus, and the volume of rats is smaller than that of guinea pigs, but guinea pigs are mainly used as pets. The experimental rat has strong aggressivity, more fierce sexual feeling, irritability and difficulty in fixing, and the rat fixing is a common basic experimental means. The experimenter is close to the rat contact in the experimental process, and if the rat is insufficiently fixed, potential safety hazards exist in the work of the experimenter. Therefore, various rat experiment fixing devices are continuously developed by people, so that various experiments related to rats can be smoothly completed on the premise of safety and feasibility.

However, in the rat experimental fixing devices currently on the market, a hard square box-shaped or iron clamp-shaped fixing device is mainly used, some of the fixing devices on the market have a fully-closed space for holding the rat, so that the operation of workers is inconvenient, some fixing devices are fixed by direct iron, the mechanical injury to the rat is large, and the safety hazard exists in the workers. In addition, the fixing devices have the problems that the size specification is relatively fixed, the requirement of individual size change in the growth process of rats cannot be met, and the like.

In order to solve the above problems, the inventor team of the present application has proposed a rat experiment fixer, which can overcome the above defects in the prior art, improve the operation safety of experimenters and simultaneously facilitate the experiment operation, and simultaneously can also reduce or even avoid the mechanical damage to the rat.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rat experiment fixer which can reduce or even avoid mechanical injury to rats, reduce fear of rats and ensure operation safety of experimenters.

According to one aspect of the utility model, a rat experiment fixer is provided, which comprises a support platform and a rat chamber, wherein the support platform is provided with a connecting part and an operation hole, and the connecting part is used for fixedly connecting the rat chamber in a detachable connection manner; the mouse cabin comprises a head and a body, the head is provided with a head hole and a shading area, the body is provided with a locking piece, a tail hole and a belly hole, and the belly hole corresponds to the operating hole when the mouse cabin is fixedly connected to the supporting table.

Preferably, the mouse chamber has a telescopic structure so as to be adjustable in length.

Preferably, a plurality of the connection portions are provided on the support table.

Preferably, the light-shielding region is coated in green or black.

Preferably, the light-shielding region is made of a green or black soft material.

Preferably, the head is provided with an ear handle.

Preferably, the head is frusto-conical.

Preferably, the body is cylindrical.

Preferably, the stoma and the handling orifice are both rectangular.

The rat experiment fixator provided by the utility model can relieve or even avoid mechanical injury when a rat is fixed, can reduce the fear of the rat, and ensures the operation safety of experimenters. Meanwhile, the rat experiment fixator is convenient to disassemble and assemble, the specification of the rat bin is easy to adjust, the rat bin fixator can be suitable for fixing rats with different body shapes, and the use efficiency is high.

Drawings

The features and advantages of the present invention will become more readily appreciated from the detailed description section provided below with reference to the drawings, in which:

FIG. 1 is a schematic top perspective view of a rat experimental fixture according to an embodiment of the present invention, showing rat wells adjusted to different lengths to fit rats of different body shapes;

FIG. 2 is a schematic perspective view of a single rat well of a rat experimental fixture according to an embodiment of the present invention;

figure 3 is a schematic bottom perspective view of a rat experimental fixture according to an embodiment of the present invention.

Reference numerals:

1. a support table; 10, a connecting part; an operation hole;

2. a mouse chamber; a head portion; a body portion;

211. a head hole; 212, a shading area; 213, an ear stem;

221. a lock; a tail hole 222; foramen ventralis 223.

Detailed Description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is for purposes of illustration only and is not intended to limit the utility model, its application, or uses.

FIG. 1 is a schematic top perspective view of a rat experimental fixture according to an embodiment of the present invention, showing rat wells adjusted to different lengths to fit rats of different body shapes; FIG. 2 is a schematic perspective view of a single rat well of a rat experimental fixture according to an embodiment of the present invention; figure 3 is a schematic bottom perspective view of a rat experimental fixture according to an embodiment of the present invention.

As shown in fig. 1, a rat experiment holder according to an embodiment of the present invention includes: the mouse chamber 2 can be fixedly connected to the support platform 1 in a detachable connection mode and is used for fixing a rat in an experiment. As an example, the support table 1 is provided with a connecting part 10 for connecting and fixing the mouse chamber 2; the connecting portion 10 may be, for example, a concave groove capable of accommodating a half of the mouse chamber, but is not limited thereto as long as the connecting portion is detachably and fixedly connected with the mouse chamber. Preferably, the support table 1 is provided with a plurality of connecting portions 10, as shown in fig. 3, each of which can be detachably and fixedly connected with one mouse chamber. Therefore, the number of the connecting parts on the support table 1 and the number of the mouse chambers are not limited. Preferably, the connecting portions on the support table 1 have different sizes, so that the mouse chambers with different sizes can be fixedly connected respectively, so that each mouse chamber can be used for rats with different body shapes and sizes. Preferably, the rat wells have a telescopic structure (not shown in the drawings) to enable their length to be adjusted, whereby each rat well can be used for rats of different body sizes. The example shown in fig. 1 is: four mouse chambers are fixedly connected to the support table 1, and the four mouse chambers are adjusted to different lengths, so that the mouse support table can be used for fixing rats with different sizes. However, as described above, it is understood that the number of the connection portions 10 and the number of the mouse chambers are not limited to those shown in the drawings, that is, the connection portions on the support table 1 may be provided in plural, and the mouse chambers may also be provided in plural. Therefore, the rat bin capable of fixing rats with different sizes is arranged, so that the application efficiency of the rat experiment fixer is improved.

In figure 2 is shown a single rat chamber which can be opened and closed to allow a rat to be placed therein after opening and then closed and locked. Specifically, as shown in fig. 2, the mouse chamber 2 includes a head portion 21 and a body portion 22 for accommodating a mouse head and a mouse body, respectively. As an example, the head 21 of the rat chamber 2 may be a truncated cone shape and the body 22 may be a cylindrical shape to conform to the shape of a rat. In addition, the top end of the head 21 is provided with a head hole 211 for facilitating the breathing of the rat. Further, still be provided with the shading area on the head 21 for shelter from the eyes of rat, in order to reduce the fear sense behind the rat entering rat storehouse. As an example, the light-shielding region may be colored opaque, for example, preferably green or black, but is not limited thereto, as long as any color or manner can be used to achieve the light-shielding effect. In addition, the head 21 is provided with an ear 213, which can facilitate the opening of the mouse chamber by the operator. Still by way of example, the body 22 of the rat compartment 2 comprises a lock 221 by means of which the entire rat compartment can be opened and closed locked for fixing the rat. In addition, a tail hole 222 is arranged on the rear end face of the body 22, and is used for enabling the tail of the rat to extend out of the rat chamber through the tail hole 222, so that experimenters can conveniently conduct relevant experimental operations such as tail vein injection, tail vein blood sampling, tail tenderness, tail pain scalding or electric pricking pain experiments. Further, an abdominal hole 223 is provided on the lower surface of the body 22 to be able to contact the abdomen of the rat, thereby enabling abdominal experiments on the rat. Accordingly, as a corresponding arrangement, the operation hole 11 corresponding to the abdominal hole 223 of the body 22 is also provided on the connection portion of the support table 1 for fixedly connecting the rat chamber, as shown in fig. 3, so that when the rat chamber 2 is fixedly connected to the support table 1, the abdominal hole 223 can be made to correspond to the operation hole 11, for example, the abdominal hole 223 overlaps with the operation hole 11 or the abdominal hole 223 is completely exposed, so that the abdomen of the rat can be contacted from below the support table to perform the rat abdominal experiment. Preferably, the abdominal hole 223 and the operation hole 11 are rectangular, so as to reach the abdomen of the rat in a wider range, obtain more experimental sites, and facilitate the operation requirements of various experiments.

Further, the head 21 is made of a soft material, and the body 22 is made of a soft transparent material, such as polyethylene terephthalate, to reduce the possibility of mechanical damage to the rat, and at the same time, to facilitate the experiment operator to directly observe the dynamics of the rat in the rat chamber, so as to better complete the rat experiment.

An example of the use of the rat experimental fixture according to the present invention is described below.

Firstly, a rat chamber for placing and fixing the rat is selected or adjusted according to the body shape of the rat. The experimenter holds the neck of the rat, opens the rat chamber through the locking piece 221, puts the rat into the rat chamber 2, and closes the locking piece 221, thereby fixing the rat. The rat's head now enters the head 21 of the rat chamber 2 and the rat tail protrudes through the tail hole 222. The head 21 is provided with a head hole 211, so that the normal breathing of the rat can be ensured. In addition, the eye of the rat is in the shading area, so that the fear of the rat can be relieved, and the rat can still be in a good mental state in the experimental process. Further, as the body 22 of the rat chamber 2 is made of soft transparent material, not only can mechanical damage to the rat be avoided, but also the experimenter can be ensured to clearly observe the state of the rat. In addition, the rat tail extends out of the rat chamber through the tail hole 222, so that experiments such as tail vein injection, tail vein blood sampling and the like can be conveniently performed. Further, since the abdominal hole 223 of the body 22 is overlapped with or completely exposed from the operation hole 11 of the support table 1, the abdominal part of the rat can be easily accessed from below the support table to perform an abdominal experiment.

Therefore, the rat experiment fixator can fix the rat under the condition of reducing or even avoiding mechanical damage to the rat. In addition, the rat experiment fixer can also be used for conveniently operating the tail and the abdomen of the rat, such as tail vein injection, tail vein blood sampling, abdominal experiments and the like, so that the operation of experimenters is facilitated, and the operation safety of the experimenters is ensured. Furthermore, the rat experiment fixator provided by the utility model can ensure normal respiration of a rat, reduce fear of the rat in an experiment, and better accord with an optimization principle in a 3R principle of animal experiment science, namely, on the basis of conforming to a scientific principle, animals are treated well through improving conditions, and animal welfare is improved; or a scientific method for improving experimental procedures and improving experimental techniques and avoiding or relieving pain and tension caused to animals, which are not related to experimental purposes. The animal experiment theory of "3R" is as follows: (1) the Reduction principle (Reduction) refers to a scientific method that uses a smaller number of animals to obtain as much experimental data or a certain number of animals in the field to obtain more experimental data in scientific research; (2) the substitution principle (Replacement) refers to testing or other research subjects performed using other methods, without animals, to achieve a certain testing goal. Or a scientific method for carrying out the test by using unconscious test materials instead of the prior conscious living vertebrate; (3) the optimization principle (optimization) refers to that on the basis of meeting the scientific principle, animals are treated well and the animal welfare is improved by improving conditions: or a scientific method for improving experimental procedures and improving experimental techniques and avoiding or relieving pain and tension caused to animals, which are not related to experimental purposes.

In addition, according to the rat experiment fixer, the support table and the rat bin are designed to be fixedly connected in a detachable connection mode, and the length of the rat bin can be adjusted in a telescopic mode, so that the rat experiment fixer can adapt to rats with different body shapes, is easy to assemble and transport, is convenient to clean and disinfect, has wide adaptability, and greatly improves experiment efficiency.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the utility model is not limited to the specific embodiments described and illustrated in detail herein, and that various changes may be made therein by those skilled in the art without departing from the scope of the utility model as defined by the appended claims. Such variations are intended to fall within the scope of the utility model.

Claims (10)

1. A rat experiment fixer comprises a supporting table (1) and a rat chamber (2), and is characterized in that the supporting table (1) is provided with a connecting part (10) and an operation hole (11), and the connecting part (10) is used for fixedly connecting the rat chamber (2) in a detachable connection manner; the mouse cabin (2) comprises a head portion (21) and a body portion (22), the head portion (21) is provided with a head hole (211) and a shading area (212), the body portion (22) is provided with a locking piece (221), a tail hole (222) and a belly hole (223), and the belly hole (223) corresponds to the operation hole (11) when the mouse cabin (2) is fixedly connected to the supporting table (1).

2. The rat experimental fixture according to claim 1, characterized in that the rat chamber (2) has a telescopic structure to enable length adjustment.

3. A rat experiment fixture according to claim 1 or 2, characterized in that a plurality of said connection portions (10) are provided on said support table (1).

4. A rat experimental fixture according to claim 1 or 2, characterised in that the body (22) is made of a transparent soft material.

5. A rat experiment holder according to claim 1 or 2, characterized in that the light-shielding region (212) is coated in green or black.

6. A rat experiment holder according to claim 1 or 2, characterized in that the light-shielding zone (212) is made of a green or black soft material.

7. A rat experimental fixture as claimed in claim 1 characterised in that an ear handle (213) is provided on the head (21).

8. A rat experiment fixture according to claim 1, characterized in that the head (21) is truncated cone shaped.

9. A rat experimental fixture as claimed in claim 1 wherein the body (22) is cylindrical.

10. The rat experimental fixture of claim 1, wherein the abdominal hole (223) and the handling hole (11) are both rectangular.

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