Naked mouse caudal vein indwelling needle
By designing a tail vein indwelling needle of nude mice that includes transparent plastic tubes and fixators, the problem of frequent search for injection points of nude mice is solved, the long-term effectiveness and stability of indwelling needles are achieved, and the efficiency and safety of drug injection is improved. sex.
Patent Information
- Application Number
- CN202420681986.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-03
AI Technical Summary
Nude mice need to frequently refining the injection points when administering the drug, resulting in inefficiency and harm to the animals.
A nude mouse tail vein indwelling needle including transparent plastic tube, fixer, butt thread, knob cover, thin needle tube and anti-reflux clip was designed. The fixation of butt thread and knob cover, injection of thin needle tube and anti-reflux The clamping of the clamp achieves stable fixation of the indwelling needle, reducing the damage to the animal and the time to find the injection point.
It effectively improves the working efficiency of drug injection in large batches of nude mice, reduces damage to animals, simplifies the operation process, and improves the stability of injection.
Smart Images
Figure CN222238469U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical experimental instruments, in particular to a nude mouse tail vein indwelling needle. Background Art
[0002] After searching the Chinese patent document with the existing announcement number CN217119042U, a retention needle fixing device for mouse tail vein injection is disclosed, including a first fixing block and a second fixing block; the bottom surface of the first fixing block is provided with a first fixing groove, the middle part of the bottom surface of the first fixing block is provided with a retention needle clamping groove, and one side of the bottom surface of the first fixing block is also provided with a buckle; the top surface of the second fixing block is provided with a second fixing groove, the top surface of the second fixing block is affixed to the bottom surface of the first fixing block and the first fixing groove and the second fixing groove are combined to form a through hole, and the top surface of the second fixing block is provided with a clamping groove at a position corresponding to the buckle; the first fixing block and the second fixing block are detachably linked by the buckle and the clamping groove, and the device is fixed by mutually buckling the first fixing block and the second fixing block at the puncture position of the mouse tail, and the retention needle is clamped in the retention needle clamping groove, so as to fix the retention needle, and the mouse tail part is fixed by the two and cannot swing, so as to further prevent the retention needle from falling off when the mouse tail is swung.
[0003] Currently, when nude mice are given drugs through tail vein injections, the syringe is used multiple times directly, and the injection point needs to be re-found each time the drug is administered. The nude mouse's tail is thin, and repeated injections can easily cause damage to the nude mouse. It takes a longer time to re-find the injection point, which is not conducive to drug injection operations for a large number of nude mice, resulting in poor efficiency of intravenous injections in nude mice. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a nude mouse tail vein indwelling needle, aiming to solve the technical problem of needing to find the injection point again each time a nude mouse drug is injected.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0006] The utility model discloses a nude mouse tail vein indwelling needle, comprising a transparent plastic tube and a fixer, wherein a butt thread is arranged at the end of one side surface of the transparent plastic tube, a knob cover is arranged at one end of the butt thread, a fine needle tube is arranged at one end surface of the transparent plastic tube, and an anti-reflux clamp is arranged at one side surface of the transparent plastic tube.
[0007] As a further description of the above technical solution:
[0008] The transparent plastic tube has a circular hole in the middle, the butt end of the transparent plastic tube and the knob cover is a cylindrical tube, and the other end is a thin hose.
[0009] As a further description of the above technical solution:
[0010] The transparent plastic tube and the knob cover are connected and fixed by a butt thread, and the inner surface of the knob cover is provided with a thread corresponding to the butt thread.
[0011] As a further description of the above technical solution:
[0012] The transparent plastic tube and the fine needle tube are fixedly connected, and the transparent plastic tube and the anti-reflux clamp are movably connected, and the end of the anti-reflux clamp is arranged in a hook shape.
[0013] As a further description of the above technical solution:
[0014] The fixer is in the shape of a rectangular parallelepiped, divided into an upper layer and a lower layer, and can be opened and closed for use. A circular and 8-shaped hollow holes are arranged in the middle of the fixer.
[0015] The utility model has the following beneficial effects:
[0016] In the utility model, by ensuring the long-term effectiveness of the indwelling needle on the mouse tail, there is no need to re-find the injection point many times, which reduces the damage to the nude mice caused by repeated injections. The utility model can effectively perform drug injection operations on a large number of nude mice, and the operation process is simple, which saves time and effectively improves the efficiency of intravenous injection of nude mice. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the split structure of the fixer of the utility model;
[0020] In the picture: 1. Transparent plastic tube; 2. Fixer; 3. Docking thread; 4. Knob cover; 5. Fine needle tube; 6. Anti-reflux clamp. DETAILED DESCRIPTION
[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0022] In the drawings, the same reference numerals all refer to the same components.
[0023] Example 1
[0024] Reference Figure 1-2The utility model provides an embodiment: a nude mouse tail vein indwelling needle, comprising a transparent plastic tube 1 and a fixer 2, a docking thread 3 is arranged at the end of one side surface of the transparent plastic tube 1, a knob cover 4 is arranged at one end of the docking thread 3, a fine needle tube 5 is arranged on the surface of one end of the transparent plastic tube 1, and an anti-reflux clip 6 is arranged on the surface of one side of the transparent plastic tube 1.
[0025] The transparent plastic tube 1 has a circular hole in the middle, and the butt end of the transparent plastic tube 1 and the knob cover 4 is a cylindrical tube, and the other end is a thin hose.
[0026] The transparent plastic tube 1 and the knob cover 4 are connected and fixed by the butt thread 3 , and the inner surface of the knob cover 4 is provided with a thread corresponding to the butt thread 3 .
[0027] The transparent plastic tube 1 and the fine needle tube 5 are fixedly connected, and the transparent plastic tube 1 and the anti-reflux clamp 6 are movably connected, and the end of the anti-reflux clamp 6 is arranged in a hook shape.
[0028] The holder 2 is in the shape of a rectangular parallelepiped, divided into an upper layer and a lower layer, and can be opened and closed for use. A circular and 8-shaped hollow holes are arranged in the middle of the holder 2 .
[0029] Specifically, the structure is composed of a transparent plastic tube 1, a fixer 2, a docking thread 3, a knob cover 4, a thin needle tube 5 and an anti-reflux clamp 6 to form a nude mouse tail vein indwelling needle. The transparent plastic tube 1' docking thread 3 and the thin needle tube 5 form an indwelling needle body, and the indwelling needle is fixed by the fixer 2. The indwelling needle is made of soft rubber material. When it is indwelled in the nude mouse tail vein, the fixer 1 is used to prevent the mouse from moving around and easily knocking the needle off. The knob cover 4 is used to dock the end of the transparent plastic tube 1 with the docking thread 3 to close the port of the transparent plastic tube 1. The thin needle tube 5 is inserted into the nude mouse tail vein for injection. The transparent plastic tube 1 is clamped by the anti-reflux clamp 6 to prevent blood from flowing out, so that the whole can form a stable nude mouse tail vein indwelling needle. Stability can be guaranteed when injecting the nude mouse tail vein, and the damage to the nude mouse caused by repeated injections can be reduced, saving time in finding the injection point.
[0030] Working principle: When in use, insert the fine needle tube 5 into the tail vein of the nude mouse, observe whether there is blood backflow in the transparent plastic tube 1, and if there is backflow, it means that the insertion is correct, and then use the fixator 2 to fix the indwelling needle on the tail. When injecting drugs, first use the anti-reflux clamp 6 to clamp the transparent plastic tube 1 to prevent blood from flowing out, then disinfect the docking thread 3 and the knob cover 4 with alcohol, and finally remove the knob cover 4, and insert the syringe into the end of the transparent plastic tube 1. After injecting the drug, use the anti-reflux clamp 6 to clamp the transparent plastic tube 1, remove the syringe, disinfect the docking thread 3 and the knob cover 4 with alcohol, cover the knob cover 4, and remove the anti-reflux clamp 6. When injecting drugs, it is necessary to remove the needle that comes with the syringe, which can effectively improve the efficiency of intravenous injection of nude mice.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A nude mouse tail vein indwelling needle, comprising a transparent plastic tube (1) and a fixator (2), characterized in that: The end of one side surface of the transparent plastic tube (1) is provided with a butt-jointed thread (3), one end of the butt-jointed thread (3) is provided with a knob cover (4), one end surface of the transparent plastic tube (1) is provided with a fine needle tube (5), and one side surface of the transparent plastic tube (1) is provided with an anti-reflux clip (6).
2. A nude mouse tail vein indwelling needle according to claim 1, characterized in that: The transparent plastic tube (1) has a circular hole in the middle, and the butt end of the transparent plastic tube (1) and the knob cover (4) is a cylindrical tube, and the other end is a thin hose.
3. A nude mouse tail vein indwelling needle according to claim 1, characterized in that: The transparent plastic tube (1) and the knob cover (4) are connected and fixed via a butt thread (3), and the inner surface of the knob cover (4) is provided with a thread corresponding to the butt thread (3).
4. The nude mouse tail vein indwelling needle according to claim 1, characterized in that: The transparent plastic tube (1) and the fine needle tube (5) are fixedly connected, and the transparent plastic tube (1) and the anti-reflux clamp (6) are movably connected, and the end of the anti-reflux clamp (6) is arranged in a hook shape.
5. The nude mouse tail vein indwelling needle according to claim 1, characterized in that: The fixer (2) is in the shape of a rectangular parallelepiped, divided into an upper layer and a lower layer, and can be opened and closed for use. The middle of the fixer (2) is provided with circular and 8-shaped hollow holes.