CN216876711U

CN216876711U - Experimental mouse fixer

Info

Publication number: CN216876711U
Application number: CN202123338506.8U
Authority: CN
Inventors: 魏凌; 王东; 张晓�; 周敬文
Original assignee: Jinan Municipal Center For Disease Control & Prevention
Current assignee: Jinan Municipal Center For Disease Control & Prevention
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-07-05
Anticipated expiration: 2031-12-29

Abstract

The utility model provides an experimental mouse fixer which can enable the abdomen of an experimental mouse to face downwards, is convenient to fix the experimental mouse and reduces the stress reaction of the experimental mouse, and comprises a suspension plate, a support frame and a dirt collecting tray, wherein the front and the back of the bottom surface of the suspension plate are respectively provided with a hoop for binding the armpit and the groin of the experimental mouse; the left side and the right side of the suspension plate are respectively and rotatably connected with a semicircular cylinder cover, the two cylinder covers can be combined into a whole circle, and the side wall of each cylinder cover is provided with a plurality of meshes for mosquitoes to pass through; the two cylinder covers are combined into a whole circle and then placed on the upper portion of the supporting frame, and the dirt collecting disc is placed on the lower portion of the supporting frame.

Description

Experimental mouse fixer

Technical Field

The utility model relates to the field of mosquito breeding research, in particular to the field of laboratory mice used for mosquito breeding, and specifically relates to a laboratory mouse fixer.

Background

When the mosquitoes are raised, the mosquitoes need to be fed with blood by the experimental mice after a few days of mating, and the ovaries can grow and mature after the female mosquitoes suck the blood, so that the female mosquitoes can lay eggs. In this process, a mouse or a rat is generally used as a feeder, and the laboratory mouse is placed in a cage overnight, and the mouse needs to be fixed by a fixing device in order to facilitate feeding of the female mosquito.

However, no specific laboratory mouse fixer exists at present, and the laboratory mouse dissecting table is often used for fixing in the process of raising and feeding blood, namely, the four limbs of the laboratory mouse are fixed on a flat dissecting table, so that the laboratory mouse is in a large shape on the dissecting table, the abdomen of the laboratory mouse is upward, the laboratory mouse is extremely uncomfortable and is in a waking state, the stress reaction is large, the laboratory mouse is easy to be injured or die in the struggling process, and the rearing cage can be polluted by stress defecation and urination.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an experimental mouse fixer which can enable the abdomen of an experimental mouse to face downwards, is convenient to fix the experimental mouse and reduces the stress reaction of the experimental mouse.

The utility model is realized by the following technical scheme:

an experimental mouse fixer comprises a suspension plate, a support frame and a sewage collecting plate, wherein the front and the back of the bottom surface of the suspension plate are respectively provided with a hoop for binding the armpit and the groin of an experimental mouse;

the left side and the right side of the suspension plate are respectively and rotatably connected with a semicircular cylinder cover, the two cylinder covers can be combined into a whole circle, and the side wall of each cylinder cover is provided with a plurality of meshes for mosquitoes to pass through;

the two cylinder covers are combined into a whole circle and then placed on the upper portion of the supporting frame, and the dirt collecting disc is placed on the lower portion of the supporting frame.

Furthermore, be equipped with the elongated groove along front and back length direction on the face of hang plate, the upper end of every ferrule is fixed with the spliced pole of vertical orientation, the lower part of spliced pole is equipped with can the slider that the elongated groove fit for removing, the upper portion of spliced pole is equipped with the screw thread and cooperates there is lock nut, lock nut when screwing up, the spliced pole with hang plate relatively fixed.

Further, a pin shaft is detachably mounted between the front end and the rear end of the left side and the right side of the suspension plate, and a sleeve capable of being sleeved on the pin shaft is arranged at the upper end of the cylinder cover along the front-rear direction.

Furthermore, the hoop comprises two flexible bridles, and the upper end of two flexible bridles is fixed the bottom of spliced pole, and the lower extreme of two flexible bridles passes through the magic and pastes bonding as an organic wholely.

Furthermore, the lower part of the support frame is a support leg, and the upper part of the support frame is a semi-arc-shaped placing frame.

Compared with the prior art, the utility model has the following beneficial effects:

1. the armpit and the groin of the laboratory mouse are bound through the front hoop and the rear hoop respectively, the laboratory mouse is hung on the suspension plate, the abdomen of the laboratory mouse is ensured to be downward, the two cylinder covers are closed to limit the four limbs of the laboratory mouse, the laboratory mouse is in a narrow space, when the laboratory mouse is in the narrow space, the laboratory mouse is in a calm state, and female mosquitoes enter the laboratory mouse through meshes to take blood and eat;

the utility model can ensure that the abdomen of the experimental mouse faces downwards to facilitate the female mosquito to take food, and the experimental mouse is fixed by the hoop and the cover cylinder, thereby reducing the stress reaction of the experimental mouse;

2. the locking nut is loosened, the relative position of the connecting column in the long groove can be adjusted, the relative distance between the two hoops is further changed, and the fixing device is suitable for fixing experimental mice with different lengths;

3. the hoop is formed by bonding two flexible bridles into a whole through a magic tape, so that the diameter of the hoop can be conveniently adjusted, and a laboratory mouse can be conveniently fixed; the dirt collecting disc is arranged below the cylinder cover and used for carrying normal excretion of the laboratory mouse, and pollution to the feeding cage is avoided.

Drawings

FIG. 1 is a schematic structural view of an experimental mouse fixer according to the present invention;

FIG. 2 is a schematic diagram of a suspension plate according to the present invention;

FIG. 3 is a schematic view of the ferrule and connecting post of the present invention in combination;

FIG. 4 is a schematic view of the engagement of the cover and ferrule of the present invention;

in the figure: 1. the device comprises a hanging plate, 2, a hoop, 3, a cylinder cover, 4, a support frame, 5, a dirt collecting disc, 6, a connecting column, 7, an elongated groove, 8, a sliding block, 9, a locking nut, 10, a pin shaft, 11 and a sleeve.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without making any creative effort belong to the protection scope of the present application.

In the description of the present invention, it is to be understood that the terms "left", "right", "front", "back", "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-4, the present embodiment discloses an experimental mouse fixer, which includes a suspension plate 1, two hoops 2, two barrel covers 3, a supporting frame 4 and a dirt collecting tray 5, wherein a long groove 7 with a length of 8cm is processed on the surface of the suspension plate 1 along the front-back length direction, a connecting column 6 facing vertically is fixed at the upper end of each hoop 2, a sliding block 8 capable of moving in the long groove 7 is arranged at the lower part of the connecting column 6, a thread is processed at the upper part of the connecting column 6 and a locking nut 9 is matched with the connecting column, when the locking nut 9 is screwed, the connecting column 6 and the suspension plate 1 are relatively fixed, and when the locking nut 9 is loosened, the connecting column 6 and the suspension plate 1 can move relatively.

Every hoop 2 comprises two flexible bridles, and the upper end of two flexible bridles is fixed in the bottom of spliced pole 6, and the lower extreme surface of a flexible bridle is equipped with the magic and pastes the hook face, and the lower extreme surface of another flexible bridle is equipped with the magic and pastes the hair side, and the lower extreme of two flexible bridles passes through the magic and pastes each other and bond a hoop of constituteing as an organic whole, and two hoops 2 are used for tying up experimental mouse armpit and inguinal position respectively.

Smooth pin shafts 10 are arranged between the front end and the rear end of the left side and the rear end of the right side of the suspension plate 1, threads are machined at the two ends of the pin shafts 10 and are matched with nuts to be fixed at the front end and the rear end of the suspension plate 1, and the pin shafts 10 are convenient to disassemble due to the design. The two cylinder covers 3 are both in a semicircular structure, and the side walls of the cylinder covers 3 are provided with meshes of 10-20 meshes, so that female mosquitoes can enter the device conveniently. The sleeve 11 is installed at the upper end edge of the barrel cover 3 along the front-back direction, and the barrel cover 3 is sleeved on the pin shaft 10 in a matching manner through the sleeve 11, so that the two barrel covers 3 are rotatably connected to the left side edge and the right side edge of the suspension plate 1, and the two barrel covers 3 can be paired to form a whole circle.

The lower part of support frame 4 is four supporting legs, upper portion and is half curved rack, forms a whole circle after two cover barrels 3 are closed after, can place on the upper portion of support frame 4, and filth catch tray 5 is put and is installed in support frame 4 lower part, guarantees that filth catch tray 5 is located cover barrels 3 under.

The experimental mouse fixer is used for fixing an experimental mouse and then placed in a feeding cage to supply female mosquitoes with blood for sucking. The experimental mouse fixer has the following specific working process:

at first will open cover for a tube 3, the relative distance through two hoops of spliced pole 6 adjustment 2 adapts to the length of laboratory mouse, tie up laboratory mouse armpit and inguinal position respectively through two hoops 2 around, make the laboratory mouse hang on hang board 1, guarantee laboratory mouse belly down, it is closed with two cover for a tube 3, the narrow space of cover for a tube 3 carries on spacingly to the four limbs of laboratory mouse, when the laboratory mouse is in narrow space, in the instinct of animal, the laboratory mouse can be in the calm state. The experimental mouse fixer is placed in the feeding cage, so that female mosquitoes enter through meshes to take blood and eat the experimental mouse. During this period, if the laboratory mouse excretes, the excrement can fall through the mesh holes into the lower dirt collecting tray 5, and the pollution to the rearing cage is avoided.

The utility model can ensure that the abdomen of the experimental mouse faces downwards to facilitate the feeding of the female mosquitoes, and the experimental mouse is fixed through the hoop and the cover cylinder, thereby reducing the stress reaction of the experimental mouse and avoiding the damage to the experimental mouse.

Claims

1. An experimental mouse fixer is characterized by comprising a suspension plate, a support frame and a dirt collecting disc, wherein the front and the back of the bottom surface of the suspension plate are respectively provided with a hoop for binding the armpit and the groin of an experimental mouse;

2. The laboratory mouse fixer according to claim 1, wherein the plate surface of the suspension plate is provided with an elongated groove along the front-rear length direction, the upper end of each hoop is fixed with a vertically oriented connecting column, the lower part of the connecting column is provided with a slide block capable of moving in the elongated groove in a matching manner, the upper part of the connecting column is provided with threads and is matched with a locking nut, and when the locking nut is screwed, the connecting column and the suspension plate are relatively fixed.

3. The laboratory mouse fixer according to claim 2, wherein a pin is detachably mounted between the front and rear ends of the left and right sides of the hanging plate, and a sleeve is disposed at an upper end of the cylinder cover along the front and rear direction and can be fitted over the pin.

4. The laboratory mouse fixer according to claim 3, wherein the hoop is composed of two flexible belts, upper ends of the two flexible belts are fixed to the bottom of the connecting column, and lower ends of the two flexible belts are adhered together by a magic tape.

5. The laboratory mouse fixer according to any one of claims 1 to 4, wherein the support frame has a support leg at a lower portion and a semi-arc-shaped rack at an upper portion.