Mouse intravenous injection fixing device

Abstract

This invention belongs to the field of laboratory rat tail vein injection technology, and in particular, a mouse intravenous injection fixation device. The invention includes an operating table with a container on the table large enough to hold one mouse. One end of the container has a slot for the mouse's tail to pass through. A first limiting structure for fixing the mouse's tail is installed on the side of the operating table near the slot, with a limiting groove on the first limiting structure aligned with the slot. A second limiting structure for positioning the mouse is provided on the container. This invention utilizes multiple limiting structures to confine mice of different sizes within the container, providing good compatibility with mice of varying sizes.

Description

Technical Field

[0001] This invention belongs to the field of experimental rat tail vein injection technology, and particularly relates to a mouse intravenous injection fixation device. Background Technology

[0002] Laboratory mice are currently the most widely used experimental animals, playing a vital role in exploring the basic functions of genes, the pathogenesis of diseases, and the development and preclinical screening of innovative drugs. Tail vein injection is a common method of drug administration for laboratory mice, in which liquid substances such as anesthetics, therapeutic drugs, and cell suspensions are injected into the mice through the tail vein to achieve the planned experimental effect.

[0003] Chinese Patent Publication No. CN202920404U discloses a mouse tail vein injection fixation device, including: an operating table, a beaker containing a mouse, and a spring clip disposed outside the cage to fix the mouse's tail extending from the cage. Two opposing slots are provided on the working surface of the operating table to limit the left and right sides of the beaker. This invention allows for mouse tail vein injection by a single person, making it very convenient and easy to learn. Furthermore, the operating table is mainly made of a small wooden stool, resulting in a simple structure and low cost. The design concept prioritizes practicality and operability in experiments, making it highly suitable for mouse tail vein injection.

[0004] Although the device has many beneficial effects, it still has the following problems: Since the mice cannot be fixed in the beaker, they are prone to scratching inside the beaker. After long-term use, scratch marks will appear on the inner wall. The mice are also prone to injury when they touch these damaged surfaces. In addition, the size of the beaker is fixed and limited to a certain extent, which can only accommodate mice of different sizes. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this invention provides a mouse intravenous injection fixation device. This invention utilizes multiple limiting structures to confine mice of different sizes within a container, exhibiting good compatibility with mice of varying sizes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mouse intravenous injection fixation device includes an operating table, a container that can accommodate a mouse on the operating table, a slot for the mouse's tail to pass through at one end of the container, a first limiting structure for fixing the mouse's tail installed on the side of the operating table near the slot, the limiting groove on the first limiting structure being on the same straight line as the slot; and a second limiting structure for limiting the position of the mouse on the container.

[0008] Preferably, the second limiting structure includes a limiting block that can slide along the inner wall of the container, and the gap between the limiting block and the container is smaller than the volume of the mouse. The top of the limiting block is threaded with a fastener, and a groove is provided on the top wall of the container along its length for the rod of the fastener to slide.

[0009] Preferably, the container is a rectangular transparent structure, and the container has several ventilation holes.

[0010] Preferably, the first limiting structure includes a fixing member and a cap. The fixing member has a limiting groove along the extension line of the through groove. The inner wall of the limiting groove is filled with rubber blocks. The cap is also provided with rubber blocks at the position corresponding to the limiting groove. The cap is connected to a rotating rod, and the rotating rod is connected to a motor through a rotating shaft.

[0011] Preferably, the operating table surface is symmetrically provided with mounting blocks along the length of the container, and the mounting blocks are provided with a number of slots at intervals along the length of the container. Both sides of the container near the end of the slot are provided with locking blocks, which engage with the slots.

[0012] Preferably, the operating table is provided with an observation component for observing the blood vessels in the tail of a mouse. The observation component includes an observation block arranged along the extension line of the limiting groove. An observation groove is opened in the middle of the observation block. The observation groove and the limiting groove are located on the same straight line. Blood vessel lamps are installed on the inner walls on both sides of the observation groove.

[0013] Preferably, the observation assembly further includes a telescopic rod, the telescopic end of which is connected to the observation block.

[0014] Preferably, a scale is provided on the operating table, and the scale is set along the extension line of the observation groove.

[0015] The advantages of this utility model are:

[0016] (1) This utility model utilizes multiple limiting structures, which can not only fix mice of different sizes in the container, but also have good compatibility with mice of different sizes, thus solving the problem of limited mouse size to a certain extent, and will not cause damage to the mice, thus protecting them; at the same time, it can restrict the tail of the mouse, which is convenient for subsequent injection work.

[0017] (2) The present invention is equipped with an observation component, which makes it easy to observe the tail condition of the mouse. The position of the container and the position of the first limiting structure are adjustable, which can further adapt to mice with different tail lengths and improve the adaptability of the whole device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a side view of the present invention.

[0020] Figure 3 This is a schematic diagram of the container structure of this utility model.

[0021] Figure 4 This is a rear view of the container of this utility model.

[0022] The meanings of the symbols marked in the figure are as follows:

[0023] 1-Operating table, 2-Container, 3-Limit block, 4-Fastener, 5-Slide groove, 6-Clocking block, 7-Ventilation hole, 8-Mounting block, 9-Clocking groove, 10-Fixing component, 11-Limiting groove, 12-Cap, 13-Rotating rod, 14-Observation block, 15-Observation slot, 16-Scale, 17-Through groove. Detailed Implementation

[0024] like Figure 1-4 As shown, a mouse intravenous injection fixation device includes a horizontally placed operating table 1. Along its length, the operating table 1 is arranged a container 2, a first limiting structure, an observation component, and a scale 16. The container 2 has a capacity to hold one mouse and is a rectangular transparent structure for easy observation of the mouse's condition. The container 2 has several ventilation holes 7. The first limiting structure is used to fix the mouse's tail. The observation component is used to observe the blood vessels in the mouse's tail. The scale 16 facilitates the measurement of the mouse's tail length.

[0025] Specifically, the first limiting structure includes a fixing member 10 and a cap 12 adapted to a limiting groove 11 on the fixing member 10. The limiting groove 11 is located in the middle of the fixing member 10, and the inner wall of the limiting groove 11 is filled with rubber blocks. Rubber blocks are also provided on the cap 12 at positions corresponding to the limiting groove 11, so that the rubber blocks on the cap 12 can press against the limiting groove 11 to limit the mouse's tail. The cap 12 is connected to a rotating rod 13, which is connected to a motor via a rotating shaft. The motor is installed in the inner cavity of the operating table 1.

[0026] Furthermore, one end of container 2 has a through-groove 17 for the mouse's tail to pass through, and the limiting groove 11 and the through-groove 17 are located on the same straight line; the second limiting structure includes a limiting block 3 that can slide along the inner wall of container 2, and the gap between the limiting block 3 and container 2 is smaller than the volume of the mouse, used to block the entrance of container 2 and prevent the mouse from escaping. The limiting block 3 has a hollow square structure, and the top of the limiting block 3 is threadedly connected to a fastener 4 (which can be a bolt). A sliding groove 5 is provided on the top wall of container 2 along its length for the rod of the fastener 4 to slide, so that when the limiting block 3 is fixed, the top wall of container 2 is located between the bolt head and the limiting block 3.

[0027] Furthermore, the operating platform 1 is symmetrically equipped with two mounting blocks 8 along the length of the container 2. Each mounting block 8 has a series of slots 9 spaced apart along the length of the container 2. Each side of the container 2 near the through groove 17 has a locking block 6 that engages with the slots 9. The observation assembly includes an observation block 14 positioned along the extension line of the limiting groove 11. An observation groove 15 is formed in the center of the observation block 14, and the observation groove 15 is aligned with the limiting groove 11. A blood vessel lamp is mounted on the inner walls of both sides of the observation groove 15. The observation assembly also includes a telescopic rod, the telescopic end of which is connected to the observation block 14. A scale 16 is positioned along the extension line of the observation groove 15.

[0028] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0029] Combination Figure 1-4 The specific usage process of the mouse intravenous injection fixation device of this embodiment is as follows:

[0030] 1. Loosen the bolt (i.e., fastener 4), remove the limiting block 3 from the container 2, place the mouse in the container 2, insert the limiting block 3 from the entrance of the container 2 until the mouse's tail is against the side of the slot 17, then tighten the bolt to fix the limiting block 3, thus limiting the position of the mouse. Then pull the mouse's tail out, pass it through the slot 17 and place it in the limiting slot 11, start the motor, the motor drives the rotating rod 13 to rotate, so that the cap 12 presses against the limiting slot 11, and start the telescopic rod, so that the observation block 14 moves to the appropriate position, and the end of the mouse's tail passes through the observation slot 15 on the observation block 14. When it is necessary to observe the mouse's tail, the blood vessel lamp in the observation slot 15 can be turned on for observation.

[0031] 2. When it is necessary to adjust the position between container 2 and fastener 10, container 2 can be lifted upwards so that the locking blocks 6 on both sides of container 2 are pulled out from their corresponding slots 9, and then moved to other slots 9 to engage the locking blocks 6 with the slots 9 whose positions need to be adjusted, thereby fixing container 2 again.

[0032] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mouse intravenous injection fixation device, characterized in that, The device includes an operating table (1), on which a container (2) capable of accommodating a mouse is provided. One end of the container (2) has a slot (17) through which the mouse's tail passes. A first limiting structure for fixing the mouse's tail is installed on the side of the operating table (1) near the slot (17). The limiting groove (11) on the first limiting structure is located on the same straight line as the slot (17). A second limiting structure for limiting the position of the mouse is provided on the container (2).

2. The mouse intravenous injection fixation device according to claim 1, characterized in that: The second limiting structure includes a limiting block (3) that can slide along the inner wall of the container (2), and the gap between the limiting block (3) and the container (2) is smaller than the volume of the mouse. The top of the limiting block (3) is threaded with a fastener (4), and a groove (5) is provided on the top wall of the container (2) along its length direction for the rod of the fastener (4) to slide.

3. The mouse intravenous injection fixation device according to claim 1, characterized in that: The container (2) is a rectangular transparent structure, and several ventilation holes (7) are provided on the container (2).

4. The mouse intravenous injection fixation device according to claim 1, characterized in that: The first limiting structure includes a fixing member (10) and a cap (12). The fixing member (10) has a limiting groove (11) along the extension line of the through groove (17). The inner wall of the limiting groove (11) is filled with rubber blocks. The cap (12) is also provided with rubber blocks at the position corresponding to the limiting groove (11). The cap (12) is connected to a rotating rod (13). The rotating rod (13) is connected to a motor through a rotating shaft.

5. The mouse intravenous injection fixation device according to claim 1, characterized in that: The operating table (1) is symmetrically provided with mounting blocks (8) along the length of the container (2). The mounting blocks (8) are provided with a number of slots (9) at intervals along the length of the container (2). The container (2) is provided with a locking block (6) on both sides of the end near the through slot (17). The locking block (6) engages with the slot (9).

6. The mouse intravenous injection fixation device according to claim 4, characterized in that: The operating table (1) is provided with an observation component for observing the blood vessels in the tail of a mouse. The observation component includes an observation block (14) arranged along the extension of the limiting groove (11). An observation groove (15) is opened in the middle of the observation block (14). The observation groove (15) and the limiting groove (11) are located on the same straight line. Blood vessel lamps are installed on the inner walls on both sides of the observation groove (15).

7. The mouse intravenous injection fixation device according to claim 6, characterized in that: The observation assembly also includes a telescopic rod, the telescopic end of which is connected to the observation block (14).

8. The mouse intravenous injection fixation device according to claim 6, characterized in that: A scale (16) is provided on the operating table (1), and the scale (16) is set along the extension line of the observation groove (15).

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