Laboratory animal fixing device

Abstract

A laboratory animal fixing device comprises a base and an inclined support, a fixing cylinder and a tail cushion block are sequentially arranged at the upper end of the support from top to bottom, an adjustable conical cover is arranged at the upper end in the fixing cylinder, an adjustable bottom baffle is fixed in the lower end of the fixing cylinder, and a tail containing groove parallel to the axis of the fixing cylinder is formed in the center of the tail cushion block. The fixing cylinder and the bottom baffle can clamp the mouse conveniently, the body of the mouse is effectively prevented from shaking, the adjustable conical cover and the bottom baffle are adjustable in position and can adapt to experimental mice of different body types conveniently, and the tail extends out of the fixing cylinder after being fixed and passes through the tail containing groove in the center of the tail cushion block, so that the mouse can be fixed conveniently. Wherein one hand can fix the tail and fix the whole fixing device at the same time, the tail of the mouse is effectively prevented from moving, the other hand can be used in cooperation with an injector, and injection or blood sampling can be conveniently conducted on the tail of the fixed mouse.

Description

Technical Field

[0001] The utility model relates to laboratory supplies, in particular to a laboratory animal fixing device. Background Art

[0002] When conducting pharmaceutical trials on animals in laboratories, especially mice, the most commonly used species, blood draws or drug injections are necessary. Traditionally, manual manipulation of the mouse is difficult due to its mobility, necessitating the use of a fixation device. The utility model patent (CN220898876U) discloses a mouse tail vein injection fixture. The head fixation mechanism is located within a fixed barrel, which has an adjustment slot. The head fixation mechanism includes a fixed head cap with a locking bolt threadedly connected to its upper portion. A tail clamping mechanism is located on one side of the fixed barrel. The tail clamping mechanism includes a limiting top cover connected to a support rail on the side away from the fixed barrel. The support rails contain a pair of clamping mounts, each with a pair of arc-shaped clamping members located above it. By providing this tail clamping mechanism, the mouse tail vein injection fixture can clamp and secure the mouse's tail. However, when using the above-mentioned fixer, one hand is still needed to hold the fixing tube, which is still inconvenient to operate. In particular, the cylindrical fixing tube is easy to move during operation, and it will also cause a certain degree of shaking, which makes it difficult to completely solve the problem of shaking during operation. Utility Model Content

[0003] In order to solve the above problems, the purpose of the present utility model is to provide a laboratory animal fixing device.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is: a laboratory animal fixation device, comprising a base and an inclined bracket, wherein a fixing cylinder and a tail pad are sequentially arranged on the upper end of the bracket from top to bottom, an adjustable conical cover is arranged on the upper end of the fixing cylinder, an adjustable bottom baffle is fixed on the lower end of the fixing cylinder, and a tail placement groove parallel to the axis of the fixing cylinder is arranged at the center of the tail pad.

[0005] Furthermore, the fixing cylinder and the tail pad are fixed on the operating plate on the top of the bracket, and a downward-bent operating support plate is provided at the lower end of the operating plate.

[0006] Furthermore, both sides of the lower end of the fixing tube are respectively provided with leg fixing openings with an L-shaped cross section, and the inner ends of the leg fixing openings are circular and vertically downward.

[0007] Furthermore, a horizontal connecting plate is fixed to the bottom of the bracket, and the outer end of the connecting plate is bent obliquely upward to form an inclined tightening plate.

[0008] Furthermore, a long strip-shaped adjustment hole is provided on the fixing cylinder above the adjustable conical cover, and the adjustment bolt and nut fixed on the outer wall of the adjustable conical cover pass through the adjustment hole, and the bolt head of the adjustment bolt and nut is clamped and fixed on the side walls on both sides of the adjustment hole.

[0009] Furthermore, a long strip fixing hole is provided on the side wall of the fixing cylinder above the bottom baffle, which extends downward to the lower end of the fixing cylinder. The bottom baffle forms an acute angle with the axis of the fixing cylinder, and a fixing bolt and nut are fixed on the upper surface of the bottom baffle. The bolt head of the fixing bolt and nut is clamped and fixed to the side walls on both sides of the fixing hole.

[0010] Furthermore, the side walls on both sides of the middle part of the fixing cylinder are respectively provided with long strip-shaped front claw outlet holes parallel to the axis of the fixing cylinder.

[0011] Furthermore, a plurality of rubber pads are fixed to the bottom of the base.

[0012] Furthermore, the fixed tube and the adjustable conical cover are made of transparent plastic, and the tail pad is made of sponge or rubber.

[0013] The fixing tube and the bottom baffle of the utility model can clamp the mouse conveniently and tightly, and can stably limit and fix the body and head of the experimental mouse, effectively preventing the mouse body from shaking; the adjustable conical cover and the bottom baffle can adjust their positions, which is convenient for adapting to experimental mice of different sizes; after being fixed, the tail is extended out of the fixing tube, and the tail is placed in a groove in the center of the tail pad; one hand can fix the tail and the entire fixing device at the same time, effectively preventing the mouse tail from moving around, and the other hand can be used to cooperate with the operation of the syringe, which is convenient for injection or blood collection from the fixed mouse tail. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 4 It is a three-dimensional structural diagram of the fixed cylinder part of the utility model. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0020] The present embodiment is described in detail below with reference to the accompanying drawings:

[0021] This embodiment provides a laboratory animal fixation device. Please refer to the accompanying drawings in the specification. Figure 1-3 .

[0022] like Figure 1-4 As shown, a laboratory animal fixation device includes a base 1 and an inclined bracket 2. The upper end of the bracket 2 is provided with a fixing cylinder 3 and a tail pad 4 in order from top to bottom. The upper end of the fixing cylinder 3 is provided with an adjustable conical cover 5. The tip of the conical cover 5 is a cylindrical breathable structure to facilitate ventilation when the mouse is fixed. The fixing cylinder 3 and the adjustable conical cover 5 are made of transparent plastic, and the tail pad 4 is made of sponge or rubber. An adjustable bottom baffle 6 is fixed to the lower end of the fixing cylinder 3. The adjustable structure is specifically as follows:

[0023] The fixing cylinder 3 above the adjustable conical cover 5 is provided with a long strip-shaped adjustment hole 13. The adjustment bolt and nut 14 fixed to the outer wall of the adjustable conical cover 5 passes through the adjustment hole 13, and the bolt head of the adjustment bolt and nut 14 is clamped and fixed to the side walls on both sides of the adjustment hole 13.

[0024] The side wall of the fixing cylinder 3 above the bottom baffle 6 is provided with an elongated fixing hole 15 extending downward to the lower end of the fixing cylinder 3. The bottom baffle 6 forms an acute angle with the axis of the fixing cylinder 3, and a fixing bolt and nut 16 is fixed to the upper surface of the bottom baffle 6. The bolt head and nut of the fixing bolt and nut 16 are clamped and fixed to the side walls on both sides of the fixing hole 15, thus forming a fixing structure that can be movably adjusted through the elongated hole, which is not only convenient for adjustment and fixation, but also simple in structure and easy to implement.

[0025] A tail placement groove 7 parallel to the axis of the fixed cylinder 3 is provided in the center of the tail pad 4. The fixed cylinder 3 and the tail pad 4 are fixed on the operating plate 8 on the top of the bracket 2. The lower end of the operating plate 8 is provided with a downwardly bent operating support plate 9. The lower end of the fixed cylinder 3 is respectively provided with a leg fixing opening 10 with an L-shaped cross-section. The inner end of the leg fixing opening 10 is circular and vertically downward.

[0026] A horizontal connecting plate 11 is fixed to the bottom of the bracket 2, and the outer end of the connecting plate 11 is bent obliquely upward to form an inclined tightening plate 12. The side walls on both sides of the middle part of the fixing tube 3 are respectively provided with long front claw through-holes 17 parallel to the axis of the fixing tube 3. A plurality of rubber pads 18 are fixed to the bottom of the base 1.

[0027] Working principle of this utility model:

[0028] Before use, remove the bottom baffle 6, place the mouse into the fixing tube 3 from the bottom of the fixing tube 3, then fix the bottom baffle 6, and clamp the mouse, with the tail passing through the tail placement groove 7 in the center of the tail pad 4. Use the thumb and index finger of one hand to pinch the tail passing through the bottom of the placement groove 7, and the little finger can just be placed on the base 1, or the little finger and ring finger can just clamp the top tightening plate 12 to fix the entire fixing device. Use the other hand to cooperate with the operation of the syringe to facilitate injection or blood collection from the fixed mouse tail.

[0029] Of course, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laboratory animal fixing device comprising a base (1) and an inclined bracket (2), characterized in that: The upper end of the bracket (2) is provided with a fixing cylinder (3) and a tail pad (4) in order from top to bottom. The upper end of the fixing cylinder (3) is provided with an adjustable conical cover (5). The tip of the conical cover (5) is a cylindrical air-permeable structure, which is convenient for ventilation when the mouse is fixed. The lower end of the fixing cylinder (3) is fixed with an adjustable bottom baffle (6). The center of the tail pad (4) is provided with a tail placement groove (7) parallel to the axis of the fixing cylinder (3).

2. The laboratory animal fixation device according to claim 1, characterized in that: The fixing cylinder (3) and the tail pad (4) are fixed on an operating plate (8) at the top of the bracket (2), and a downwardly bent operating support plate (9) is provided at the lower end of the operating plate (8).

3. The laboratory animal fixation device according to claim 1, characterized in that: The lower end of the fixing cylinder (3) is provided with leg fixing openings (10) with L-shaped cross sections on both sides, and the inner ends of the leg fixing openings (10) are circular and face vertically downward.

4. The laboratory animal fixation device according to claim 1, characterized in that: A horizontal connecting plate (11) is fixed to the bottom of the bracket (2), and the outer end of the connecting plate (11) is bent obliquely upward to form an inclined tightening plate (12).

5. The laboratory animal fixation device according to claim 1, characterized in that: The fixing cylinder (3) above the adjustable conical cover (5) is provided with a long strip-shaped adjustment hole (13), and an adjustment bolt nut (14) fixed to the outer wall of the adjustable conical cover (5) passes through the adjustment hole (13), and the bolt head of the adjustment bolt nut (14) and the nut are clamped and fixed at the side walls on both sides of the adjustment hole (13).

6. The laboratory animal fixation device according to claim 1, characterized in that: A long strip fixing hole (15) is provided on the side wall of the fixing cylinder (3) above the bottom baffle (6) and extends downward to the lower end of the fixing cylinder (3). The bottom baffle (6) forms an acute angle with the axis of the fixing cylinder (3), and a fixing bolt nut (16) is fixed on the upper surface of the bottom baffle (6). The bolt head of the fixing bolt nut (16) is clamped and fixed to the side walls on both sides of the fixing hole (15).

7. The laboratory animal fixation device according to claim 1, characterized in that: The side walls on both sides of the middle portion of the fixed cylinder (3) are respectively provided with long strip-shaped front claw through holes (17) parallel to the axis of the fixed cylinder (3).

8. The laboratory animal fixation device according to claim 1, characterized in that: A plurality of rubber pads (18) are fixed to the bottom of the base (1).

9. The laboratory animal fixation device according to claim 1, characterized in that: The fixed cylinder (3) and the adjustable conical cover (5) are made of transparent plastic, and the tail pad (4) is made of sponge or rubber.

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