Animal brain glioma tissue extraction device
By designing an extraction needle with protective components, the problem of sample contamination caused by needle exposure in the prior art is solved, and effective wrapping of the needle and preventing sample contamination are achieved.
Patent Information
- Application Number
- CN202420813470.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-04-18
AI Technical Summary
Existing brain glioma tissue extraction devices cannot effectively protect the needle, resulting in the needle being exposed to the outside after sampling and contacting the air, which can easily cause sample contamination.
A device including an extraction needle is designed, and the surface of the extraction needle is provided with a protective component, which includes an arc cross slider, a semicircular sleeve, a semicircular cylinder and a magnet piece, through the sliding of the arc cross slider and the spring force of the spring. , drive the semi-cylinder and semi-circular cover to close, wrap the needle to avoid contact with air.
It effectively avoids contact with air after sampling, prevents sample contamination, and magnetic adsorption through the magnet sheet, ensuring better closing of the semi-cylinder and prevents gaps from appearing.
Smart Images
Figure CN222487459U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a device for extracting animal brain glioma tissue. Background Art
[0002] Glioma tissue is a tumor that occurs in neuroectodermal glial cells. Glioma originates from glial cells in the brain and spinal cord, which are usually responsible for supporting and protecting neural tissue. When glial cells become cancerous, they begin to grow and divide uncontrollably, forming tumors. Glioma can be divided into many types, including astrocytoma, oligodendroglioma, medulloblastoma, colloid cyst, etc. Different types of glioma have different biological behaviors and treatment options.
[0003] After searching the patent number CN214342420U, it is specifically a device for extracting the core of a brain glioma pathological tissue, which can maintain the original tissue structure of the extracted sample and facilitate the distinction between partial and whole tissues. However, the above patent cannot protect the needle after extracting the sample, causing the sampling needle to be exposed to the outside, which is easy to cause sample contamination after contact with the air. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides an animal brain glioma tissue extraction device, which solves the problem that after the sample is extracted, the needle cannot be protected, resulting in the sampling needle being exposed to the outside and easily causing sample contamination after contact with the air.
[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an animal brain glioma tissue extraction device, including an extraction needle, a protective component is arranged on the surface of the extraction needle, the extraction needle includes a needle tube, and an arc-shaped cross groove is opened on the surface of the needle tube.
[0006] The protection component includes an arc-shaped cross slider and two semicircular sleeve blocks, and the arc-shaped cross slider is slidably sleeved in the inner cavity of the arc-shaped cross slide groove, and the top of the arc-shaped cross slider is symmetrically fixedly connected with a spring, the bottom of the semicircular sleeve block is fixedly connected with a semi-cylinder, the surface of the semi-cylinder is fixedly connected with a connecting piece, and a steel wire rope is fixedly sleeved between the connecting piece and the arc-shaped cross slider, and a magnet sheet is provided on the inner wall of the semi-cylinder relative to the lower end.
[0007] Preferably, a baffle is fixedly connected to the top of the needle tube, and a needle is provided at the bottom of the needle tube.
[0008] Preferably, a piston is slidably sleeved in the inner cavity of the needle tube, the piston is fixedly connected to a piston rod, and a push piece is provided on the top of the piston rod and is located outside the top of the needle tube.
[0009] Preferably, the top of the spring is fixedly connected to the top of the inner cavity of the arc-shaped cross slide groove.
[0010] Preferably, the semicircular sleeve block is rotatably connected to the bottom of the needle tube through a hinge, and the semi-cylinder is wrapped around the outside of the needle and fits each other.
[0011] Preferably, the diameters of both ends of the steel wire rope are larger than the diameter of the inner cavity where the arc-shaped cross slider and the connecting piece are sleeved.
[0012] Beneficial Effects
[0013] The utility model provides an animal brain glioma tissue extraction device. Compared with the prior art, it has the following beneficial effects:
[0014] 1. The animal brain glioma tissue extraction device inserts the needle into the position where sampling is required and achieves sampling, then releases the arc-shaped cross slider, and under the elastic force of the spring, the arc-shaped cross slider is driven to reset, and under the dead weight of the semi-cylinder and the semi-circular sleeve block, the semi-cylinder and the semi-circular sleeve block are moved downward and closed, and the semi-cylinders on both sides are made to fit and wrap the needle, thereby avoiding contact with the air after sampling, which may cause the sample to be easily contaminated.
[0015] 2. The animal brain glioma tissue extraction device uses magnetic adsorption of magnet sheets to make the semi-cylinders close better and prevent the problem of gaps between the semi-cylinders. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure extraction needle of the utility model;
[0018] Figure 3 This is a schematic diagram of the structural protection component of the utility model;
[0019] Figure 4 The utility model structure Figure 3 A partial enlarged schematic diagram in the middle;
[0020] Figure 5 It is a schematic diagram of the semi-circular cylinder and the semi-circular sleeve block of the utility model structure.
[0021] In the figure: 1. extraction needle; 11. needle tube; 12. baffle; 13. arc-shaped cross slide; 14. needle; 15. piston rod; 16. piston; 2. protection component; 21. arc-shaped cross slide; 22. spring; 23. semicircular sleeve block; 24. hinge; 25. semicircular cylinder; 26. wire rope; 27. connecting plate; 28. magnet sheet. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1 The utility model provides a technical solution: an animal brain glioma tissue extraction device, comprising an extraction needle 1, and a protective component 2 is arranged on the surface of the extraction needle 1.
[0024] See also Figure 2 The extraction needle 1 includes a needle tube 11, and an arc-shaped cross groove 13 is provided on the surface of the needle tube 11. A baffle 12 is fixedly connected to the top of the needle tube 11, and a needle 14 is arranged at the bottom of the needle tube 11. A piston 16 is slidably sleeved in the inner cavity of the needle tube 11, and the piston 16 is fixedly connected to a piston rod 15. A push piece is arranged on the top of the piston rod 15 and is located outside the top of the needle tube 11. The piston rod 15 is driven to move by the push piece, so that the piston 16 is extended and retracted in the inner cavity of the needle tube 11 to extract and discharge the needle 14.
[0025] See also Figure 3-5 The protection component 2 includes an arc-shaped cross slider 21 and two semicircular sleeve blocks 23. The semicircular sleeve blocks 23 are rotatably connected to the bottom of the needle tube 11 through hinges 24. The arc-shaped cross slider 21 is slidably sleeved in the inner cavity of the arc-shaped cross slot 13. The arc-shaped cross slider 21 can be prevented from falling off from the inner cavity of the arc-shaped cross slot 13 through the cross sliding connection. The top of the arc-shaped cross slider 21 is symmetrically fixedly connected with a spring 22. The top of the spring 22 is fixedly connected to the top of the inner cavity of the arc-shaped cross slot 13. The bottom of the semicircular sleeve block 23 is fixedly connected with a semi-cylinder 25. The semi-cylinder 25 is wrapped around the outside of the needle 14, and They fit each other and the needle 14 can be wrapped by the two semi-cylinders 25. Secondly, the corresponding magnet sheets 28 can be sucked together, so that the semi-cylinder 25 can be wrapped more precisely to prevent the sampling needle 14 from contacting the air. A connecting piece 27 is fixedly connected to the surface of the semi-cylinder 25, and a steel wire rope 26 is fixedly sleeved between the connecting piece 27 and the arc-shaped cross slider 21. The diameters of both ends of the steel wire rope 26 are larger than the diameter of the inner cavity of the arc-shaped cross slider 21 and the connecting piece 27. In this way, the steel wire rope 26 will not fall off the arc-shaped cross slider 21 and the connecting piece 27. A magnet sheet 28 is provided on the inner wall relative to the lower end of the semi-cylinder 25.
[0026] When in use, when sampling is required, first push the arc-shaped cross slide block 21 to slide upward in the inner cavity of the arc-shaped cross slide groove 13, thereby driving the steel wire ropes 26 on both sides to move, and through the connection of the connecting piece 27 and the rotation of the hinge 24, drive the semi-cylinders 25 and the semi-circular sleeve blocks 23 on both sides to expand on one side, and separate the magnet sheet 28 to leak out the needle 14, and then insert the needle 14 to the position where sampling is required, and drive the piston 16 to slide in the inner cavity of the needle tube 11 through the piston rod 15, and extract the sample in the form of negative pressure, and after sampling, push the needle 14 is pulled out. After pulling out, the arc-shaped cross slider 21 is released, and under the elastic force of the spring 22, the arc-shaped cross slider 21 is driven to reset, and under the dead weight of the semi-cylinder 25 and the semi-circular sleeve block 23, the semi-cylinder 25 and the semi-circular sleeve block 23 are moved downward and closed, and the semi-cylinders 25 on both sides are made to fit and wrap the needle 14, thereby avoiding contact with the air after sampling, which makes the sample easily contaminated. Finally, through the magnetic adsorption of the magnet sheet 28, the semi-cylinder 25 is better closed to prevent the problem of gaps between the semi-cylinders 25.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An animal brain glioma tissue extraction device, comprising an extraction needle (1), characterized in that: The surface of the extraction needle (1) is provided with a protection component (2), the extraction needle (1) comprises a needle tube (11), and the surface of the needle tube (11) is provided with an arc-shaped cross groove (13); The protection component (2) comprises an arc-shaped cross slider (21) and two semicircular sleeves (23), and the arc-shaped cross slider (21) is slidably sleeved in the inner cavity of the arc-shaped cross slide groove (13), and the top of the arc-shaped cross slider (21) is symmetrically fixedly connected with a spring (22), the bottom of the semicircular sleeve (23) is fixedly connected with a semi-cylinder (25), the surface of the semi-cylinder (25) is fixedly connected with a connecting piece (27), and a steel wire rope (26) is fixedly sleeved between the connecting piece (27) and the arc-shaped cross slider (21), and a magnet sheet (28) is arranged on the inner wall of the semi-cylinder (25) relative to the lower end.
2. The device for extracting animal brain glioma tissue according to claim 1, characterized in that: A baffle (12) is fixedly connected to the top of the needle tube (11), and a needle head (14) is arranged at the bottom of the needle tube (11).
3. The device for extracting animal brain glioma tissue according to claim 2, characterized in that: The inner cavity of the needle tube (11) is slidably sleeved with a piston (16), the piston (16) is fixedly connected to a piston rod (15), and a push piece is provided on the top of the piston rod (15) and is located outside the top of the needle tube (11).
4. The device for extracting animal brain glioma tissue according to claim 1, characterized in that: The top of the spring (22) is fixedly connected to the top of the inner cavity of the arc-shaped cross slide groove (13).
5. The device for extracting animal brain glioma tissue according to claim 1, characterized in that: The semicircular sleeve (23) is rotatably connected to the bottom of the needle tube (11) via a hinge (24), and the semicircular cylinder (25) is wrapped around the outside of the needle head (14) and fits each other.
6. The device for extracting animal brain glioma tissue according to claim 1, characterized in that: The diameters of the two ends of the steel wire rope (26) are larger than the diameter of the inner cavity in which the arc-shaped cross slider (21) and the connecting piece (27) are sleeved.