A medical experimental mouse tail vein injection auxiliary device

Abstract

This utility model discloses an auxiliary device for tail vein injection in medical experimental mice. Relating to the technical field of medical experimental equipment, the device includes a base with a fixing frame installed near the edge of the top. A fixing component is provided on the top of the base, and an observation component is provided on one outer wall of the fixing frame. The fixing component includes a lower fixing plate and an upper fixing plate, with the upper fixing plate positioned above the lower fixing plate. This auxiliary device for tail vein injection in medical experimental mice allows the upper fixing plate to move upward a certain distance by pulling a lever, overcoming the spring's thrust, and completely separating the upper and lower arc-shaped plates. The mouse is then placed on the lower arc-shaped plate. Releasing the lever causes the upper arc-shaped plate to move downward under the spring's thrust, thus securing the mouse and effectively avoiding the problem of mice being difficult to stabilize due to their active and restless nature.

Description

Technical Field

[0001] This utility model relates to the field of medical experimental equipment technology, specifically to an auxiliary device for tail vein injection in medical experimental mice. Background Technology

[0002] In medical experiments, tail vein injection in mice is a common experimental procedure used to inject drugs, reagents, etc. into mice to study drug efficacy, establish disease models, etc.

[0003] Currently, when performing tail vein injection in mice, the mice are naturally active and difficult to keep stable during the injection process. This makes it difficult for operators to accurately locate the tail vein and perform the injection, which not only increases the difficulty of the operation but also easily causes multiple punctures, resulting in unnecessary harm to the mice and affecting the accuracy of experimental results. Therefore, this utility model provides an auxiliary device for tail vein injection in medical experimental mice. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an auxiliary device for tail vein injection in medical experimental mice, which solves the problems of difficulty in fixing mice and inconvenience in operation during tail vein injection in existing technologies.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a medical experimental mouse tail vein injection auxiliary device, comprising a base, a fixing frame installed near the edge of the top of the base, a fixing component on the top of the base, and an observation component on one outer wall of the fixing frame; the fixing component includes a lower fixing plate and an upper fixing plate, the upper fixing plate being positioned above the lower fixing plate, a spring being installed on the top surface of the upper fixing plate, the top end of the spring being fixedly connected to the inner top surface of the fixing frame, and the spring being able to generate a downward thrust on the upper fixing plate; the lower fixing plate being fixedly installed on the top surface of the base, multiple straight plates being fixedly connected at equal intervals on the top of the lower fixing plate, a lower arc-shaped plate being fixedly connected to one side of the straight plates, multiple L-shaped plates being fixedly connected at equal intervals on the bottom of the upper fixing plate, multiple upper arc-shaped plates being fixedly connected to one side of the L-shaped plates, each upper arc-shaped plate being staggered from each lower arc-shaped plate, and being able to pass through the gap between two adjacent lower arc-shaped plates.

[0006] Preferably, a sliding column is also installed on the top of the upper fixing plate. The sliding column slides through the inner top surface of the fixing frame and extends upward. A pull block is fixedly connected to the top of the sliding column.

[0007] Preferably, suction cups are provided at the four corners of the bottom surface of the base, and a U-shaped frame is installed on the outer surface of the fixing frame away from the fixing component.

[0008] Preferably, the observation component includes a slide rod slidably disposed inside the U-shaped frame, a connecting block is mounted on the side surface of the slide rod facing the fixing component, a ring frame is mounted on the side surface of the connecting block, a magnifying glass is mounted on the inner wall of the ring frame, and multiple LED lights are mounted on the bottom of the ring frame.

[0009] Preferably, the top of the connecting block has a battery slot, inside which is a lithium battery electrically connected to the LED light. The battery slot has a cover, and the top of the connecting block also has a switch button electrically connected to the lithium battery.

[0010] Preferably, the slide bar has a straight groove on the side surface facing away from the fixed frame, and a locking screw is threaded through one side surface of the U-shaped frame, with one end of the locking screw abutting against the straight groove.

[0011] Beneficial effects

[0012] This invention provides an auxiliary device for tail vein injection in medical laboratory mice. Compared with the prior art, it has the following advantages:

[0013] 1. This medical experimental mouse tail vein injection auxiliary device, by pulling the lever, overcomes the spring's thrust, causing the upper fixing plate to move the upper arc-shaped plate upward a certain distance, and the upper arc-shaped plate and the lower arc-shaped plate to completely separate. At this time, the mouse is placed on the lower arc-shaped plate, and then the lever is released. Under the action of the spring's thrust, the upper arc-shaped plate moves downward, which, together with the lower arc-shaped plate, can fix the mouse, effectively avoiding the problem of mice being difficult to stabilize due to their lively and active nature.

[0014] 2. This medical experimental mouse tail vein injection auxiliary device illuminates the mouse's tail with an LED light when the switch is turned on, providing better lighting conditions for operators to locate veins. At the same time, a magnifying glass can magnify a portion of the mouse's tail, making previously thin and difficult-to-see veins more clearly visible, thereby improving the success rate of injection and reducing unnecessary harm to the mice. Attached Figure Description

[0015] Figure 1 This is a three-dimensional appearance schematic diagram of the present utility model;

[0016] Figure 2 This is a three-dimensional view of the appearance of this utility model from another perspective;

[0017] Figure 3 This is a three-dimensional appearance diagram of the U-shaped frame of this utility model;

[0018] Figure 4 This is an exploded view of the fixing component of this utility model;

[0019] Figure 5This is a three-dimensional appearance diagram of the observation component of this utility model.

[0020] In the diagram: 1. Base; 11. Suction cup; 12. Fixing bracket; 13. U-shaped bracket; 2. Fixing assembly; 21. Lower fixing plate; 22. Straight plate; 23. Lower arc-shaped plate; 24. Upper fixing plate; 25. L-shaped plate; 26. Upper arc-shaped plate; 27. Sliding column; 28. Spring; 29. ​​Pull block; 3. Observation assembly; 31. Sliding rod; 32. Straight slot; 33. Connecting block; 34. Battery slot; 35. Lithium battery; 36. Cover; 37. Switch button; 38. Ring frame; 39. Magnifying glass; 310. LED light; 4. Locking screw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides two technical solutions:

[0023] Figures 1-5 The first embodiment is shown: a medical experimental mouse tail vein injection auxiliary device, including a base 1, a fixing frame 12 installed near the edge of the top of the base 1, a fixing component 2 provided on the top of the base 1, and an observation component 3 provided on one side of the outer wall of the fixing frame 12; the fixing component 2 includes a lower fixing plate 21 and an upper fixing plate 24, the upper fixing plate 24 is disposed above the lower fixing plate 21, a spring 28 is installed on the top surface of the upper fixing plate 24, the top end of the spring 28 is fixedly connected to the inner top surface of the fixing frame 12, and the spring 28 can generate a downward pushing force on the upper fixing plate 24; the lower fixing plate 21 is fixedly installed on the top surface of the base 1, a plurality of straight plates 22 are fixedly connected at equal intervals on the top of the lower fixing plate 21, a lower arc-shaped plate 23 is fixedly connected to one side of the straight plate 22, a plurality of L-shaped plates 25 are fixedly connected at equal intervals on the bottom of the upper fixing plate 24, a plurality of upper arc-shaped plates 26 are fixedly connected to one side of the L-shaped plates 25, each upper arc-shaped plate 26 is staggered with each lower arc-shaped plate 23, and can pass through the gap between two adjacent lower arc-shaped plates 23. A sliding column 27 is also installed on the top of the upper fixed plate 24. The sliding column 27 slides through the inner top surface of the fixed frame 12 and extends upward. A pull block 29 is fixedly connected to the top of the sliding column 27.

[0024] Specifically, in the initial state, the spring 28 applies a downward pushing force to the upper fixing plate 24, causing the upper arc plate 26 and the lower arc plate 23 to be in a relatively close position. When it is necessary to fix the mouse, the operator pulls the pull block 29, and the sliding column 27 will drive the upper fixing plate 24 to move upward against the pushing force of the spring 28. The upper arc plate 26 also moves upward and gradually separates completely from the lower arc plate 23. At this time, enough space is formed between them for placing the mouse. After the mouse is placed on the lower arc plate 23, the operator releases the pull block 29. At this time, the spring 28 loses the external upward pulling force, restores its deformation, and continues to apply a downward pushing force to the upper fixing plate 24. The upper fixing plate 24 moves downward under the action of the spring 28, and the upper arc plate 26 also moves downward, cooperating with the lower arc plate 23 to lock the mouse's body between the two, thus fixing the mouse.

[0025] Furthermore, the upper arc-shaped plate 26 and the lower arc-shaped plate 23 are staggered mainly to avoid interference when they are close to each other. At the same time, they can fix mice of different sizes, thus improving practicality.

[0026] In this embodiment, suction cups 11 are provided at the four corners of the bottom surface of the base 1, and a U-shaped frame 13 is installed on the outer surface of the fixing frame 12 away from the fixing component 2.

[0027] Specifically, when the device is placed on the experimental table, pressing the device causes the air inside the suction cup 11 to be squeezed out, and the suction cup 11 will adhere tightly to the experimental table, thereby improving the overall stability of the device.

[0028] Figures 1-5 The second embodiment is shown. The main difference from the first embodiment is that the observation component 3 includes a slide rod 31 that is slidably disposed inside the U-shaped frame 13. A connecting block 33 is installed on the side surface of the slide rod 31 facing the fixing component 2. A ring frame 38 is installed on the side surface of the connecting block 33. A magnifying glass 39 is installed on the inner wall of the ring frame 38. Multiple LED lights 310 are installed at the bottom of the ring frame 38.

[0029] Specifically, multiple LED lights 310 installed at the bottom of the ring frame 38 are used to provide illumination. When the LED lights 310 are turned on, the light will evenly illuminate the mouse's tail, reducing the interference of shadows and making the veins more visible, making it easier for operators to identify them.

[0030] Furthermore, the magnifying glass 39 can magnify the mouse's tail, making the originally thin and difficult-to-see veins more clearly visible, thereby improving the success rate of injection and reducing unnecessary harm to the mouse.

[0031] In this embodiment, a battery slot 34 is provided on the top of the connecting block 33, and a lithium battery 35 is provided inside the battery slot 34. The lithium battery 35 is electrically connected to the LED light 310. A cover 36 is provided on the battery slot 34. A switch button 37 is also provided on the top of the connecting block 33. The switch button 37 is electrically connected to the lithium battery 35.

[0032] Specifically, the lithium battery 35 is placed in the battery slot 34 at the top of the connecting block 33. The cover 36 can prevent the lithium battery 35 from falling out or being disturbed by the outside world. The lithium battery 35 is electrically connected to the LED light 310 to provide it with the power required to emit light.

[0033] Furthermore, the switch button 37 is electrically connected to the lithium battery 35, which serves to control the on / off state of the circuit. By pressing the switch button 37, current can flow from the lithium battery 35 to the LED light 310, causing the LED light 310 to light up.

[0034] In this embodiment, a straight groove 32 is provided on the side surface of the slide bar 31 facing away from the fixed frame 12, and a locking screw 4 is threaded through one side surface of the U-shaped frame 13, with one end of the locking screw 4 abutting against the straight groove 32.

[0035] Specifically, when the position of the observation component needs to be adjusted, the operator first loosens the locking screw 4, allowing one end to gradually disengage from the contact state with the straight groove 32. At this time, the slide rod 31 is no longer restricted by the locking screw 4 and can slide freely within the U-shaped frame 13. The operator can then move the slide rod 31 back and forth according to actual needs, driving components such as the magnifying glass 39 and the LED light 310 to the appropriate position. After the observation component is adjusted to the ideal position, the operator rotates the locking screw 4 in the opposite direction, providing favorable conditions for accurate observation of the mouse tail vein.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0037] Working principle: When in use, by pulling the lever 29, the pushing force of the spring 28 is overcome, causing the upper fixed plate 24 to move the upper arc plate 26 upward a certain distance, and the upper arc plate 26 is completely separated from the lower arc plate 23. At this time, the mouse is placed on the lower arc plate 23, and then the lever 29 is released. Under the pushing force of the spring 28, the upper arc plate 26 moves downward, which, together with the lower arc plate 23, can fix the mouse, effectively avoiding the problem of the mouse being difficult to stabilize due to its lively and active nature, so that the mouse cannot struggle. Then, the operator straightens the mouse's tail with one hand, so that the mouse's tail is placed below the magnifying glass 39.

[0038] During injection, turning on switch button 37 illuminates the mouse tail with LED light 310, providing better lighting conditions for the operator to locate the vein. At the same time, the magnifying glass 39 allows the operator to more accurately locate the vein. Then, the other hand operates the syringe to inject the drug into the vein in the mouse tail.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medical experimental mouse tail vein injection auxiliary device, comprising a base (1), a fixing frame (12) is installed on the top of the base (1) near the edge, characterized in that: The base (1) is provided with a fixing component (2) on its top, and the fixing frame (12) is provided with an observation component (3) on one side of its outer wall; The fixing assembly (2) includes a lower fixing plate (21) and an upper fixing plate (24). The upper fixing plate (24) is disposed above the lower fixing plate (21). A spring (28) is installed on the top surface of the upper fixing plate (24). The top end of the spring (28) is fixedly connected to the inner top surface of the fixing frame (12), and the spring (28) can generate a downward thrust on the upper fixing plate (24). The lower fixing plate (21) is fixedly installed on the top surface of the base (1). The top of the fixed plate (21) is fixedly connected with multiple straight plates (22) at equal intervals. A lower arc plate (23) is fixedly connected to one side of the straight plate (22). A multiple L-shaped plates (25) are fixedly connected to the bottom of the upper fixed plate (24) at equal intervals. A multiple upper arc plate (26) is fixedly connected to one side of the L-shaped plate (25). Each upper arc plate (26) is staggered with each lower arc plate (23) and can pass through the gap between two adjacent lower arc plates (23).

2. The medical experimental mouse tail intravenous injection auxiliary device according to claim 1, characterized in that: The top of the upper fixing plate (24) is also equipped with a sliding column (27), which slides through the inner top surface of the fixing frame (12) and extends upward. A pull block (29) is fixedly connected to the top of the sliding column (27).

3. The medical laboratory mouse tail vein injection auxiliary device according to claim 1, characterized in that: The base (1) is provided with suction cups (11) at the four corners of the bottom surface, and the fixing frame (12) is provided with a U-shaped frame (13) on the outer surface of the side away from the fixing component (2).

4. The medical experimental mouse tail intravenous injection auxiliary device according to claim 3, characterized in that: The observation component (3) includes a slide rod (31) slidably disposed inside the U-shaped frame (13). A connecting block (33) is mounted on the side surface of the slide rod (31) facing the fixing component (2). A ring frame (38) is mounted on the side surface of the connecting block (33). A magnifying glass (39) is mounted on the inner wall of the ring frame (38). Multiple LED lights (310) are mounted on the bottom of the ring frame (38).

5. The medical experimental mouse tail intravenous injection auxiliary device according to claim 4, characterized in that: The top of the connecting block (33) is provided with a battery slot (34), and a lithium battery (35) is provided inside the battery slot (34). The lithium battery (35) is electrically connected to the LED light (310). A cover (36) is provided on the battery slot (34). A switch button (37) is also provided on the top of the connecting block (33), and the switch button (37) is electrically connected to the lithium battery (35).

6. The medical experimental mouse tail intravenous injection auxiliary device according to claim 4, characterized in that: The slide bar (31) has a straight groove (32) on the side surface facing away from the fixed frame (12), and a locking screw (4) is threaded through one side surface of the U-shaped frame (13), with one end of the locking screw (4) abutting against the straight groove (32).

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