Modeling device for small animal intervertebral disc degeneration model
By designing a small animal intervertebral disc degeneration model modeling device with adjustable puncture needle depth and scale marking, the problem of difficulty in precise control of puncture depth in the prior art is solved, and the effect of reducing the number of punctures and improving experimental efficiency is achieved.
Patent Information
- Application Number
- CN202420877162.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-25
AI Technical Summary
In the prior art, when establishing a small animal intervertebral disc degeneration model, the puncture depth is difficult to accurately control, resulting in an increase in the number of punctures and large experimental errors.
A small animal intervertebral disc degeneration model model modeling device is designed, including adjustable puncture needle depth and scale marking, adjust the depth of the puncture needle through the frame limiter, and improve the accuracy of the needle depth through the scale groove.
By adjusting the position of the frame limiter, the depth of the puncture needle can be accurately controlled, the number of punctures can be reduced, the experimental efficiency can be improved, and the experimental error can be reduced.
Smart Images
Figure CN222426306U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical auxiliary instruments, in particular to a model making device for intervertebral disc degeneration of small animals. Background Art
[0002] Diseases related to intervertebral disc degeneration are common diseases among middle-aged and elderly people. Due to factors such as lifestyle habits and occupational factors, the incidence of this disease has increased year by year among the middle-aged and elderly population, and even shows a trend of becoming younger, causing a huge socioeconomic burden. At present, intervertebral disc degeneration is a cutting-edge hotspot in the medical field, and there are many related studies, but its cause and pathogenesis are not yet fully understood. Therefore, it is necessary to establish an animal model that can simulate the chronic injury accumulation of human intervertebral discs as a reliable, effective and reproducible experimental carrier, and then conduct in-depth research on the mechanism of intervertebral disc degeneration.
[0003] At present, the rat tail puncture method has become the most widely used method for establishing an animal model of intervertebral disc degeneration due to its advantages of less trauma, relatively short induction time, good repeatability and relatively easy positioning. However, in the existing technology, some experimenters directly rely on their own experience to perform rat tail puncture during the puncture process, and evaluate whether the needle has entered the intervertebral space based on the feel of the needle. Such operations often increase the number of punctures and there are differences in puncture depth. These differences will affect the results and produce large experimental errors, which may ultimately lead to experimental failure. Therefore, there is an urgent need for a small animal intervertebral disc degeneration model modeling device to solve the above problems. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] In view of the shortcomings of the prior art, the utility model provides a modeling device for intervertebral disc degeneration in small animals, which has the advantages of adjustable puncture depth, etc., and solves the problem of assessing whether the level of the intervertebral space is entered based on the feel of the needle insertion. Such operation often increases the number of punctures and causes differences in puncture depth.
[0006] (II) Technical solution
[0007] The utility model provides a technical solution to the above technical problems as follows: a small animal intervertebral disc degeneration model making device, comprising a puncture needle handle and a puncture needle, the outer wall of the puncture needle handle is provided with an external thread, the external thread of the puncture needle handle is connected with a threaded sleeve, the outside of the threaded sleeve is fixedly connected to a limited frame, the top of the puncture needle is fixedly connected with a connecting sleeve, the outer wall of the connecting sleeve is provided with an internal thread, and the connecting sleeve is threadedly connected to the puncture needle handle through the internal thread.
[0008] The beneficial effects of the utility model are:
[0009] The small animal intervertebral disc degeneration model making device can adjust the puncture depth of the puncture needle by adjusting the position of the limiter, and the user can control the puncture depth through the scale mark, thereby reducing the number of punctures and improving the experimental efficiency.
[0010] On the basis of the above technical solution, the present invention can also be improved as follows.
[0011] Furthermore, an annular fastening sleeve is fixedly connected to the outside of the connecting sleeve, the fastening sleeve is in close contact with the puncture needle handle, and the diameter of the fastening sleeve is the same as the diameter of the puncture needle handle.
[0012] The beneficial effect of adopting the above further solution is that puncture needles of different diameters can be easily replaced, so that they can be suitable for a variety of animals.
[0013] Furthermore, a scale groove is provided on the outer wall of the puncture needle, and the scale markings on the scale groove are spaced at intervals of 0.2 cm.
[0014] The beneficial effect of adopting the above further solution is that the accuracy of acupuncture depth is improved through scale marking.
[0015] Furthermore, a puncture cavity connected to the puncture needle is provided inside the puncture needle handle, a retaining ring is fixedly connected to the inner wall of the puncture cavity, the connecting sleeve is in close contact with the retaining ring, and the retaining ring is funnel-shaped.
[0016] The beneficial effect of adopting the above further solution is that the sealing performance with the connecting sleeve is improved by the retaining ring.
[0017] Furthermore, the outer side wall of the needle handle is provided with friction lines.
[0018] The beneficial effect of adopting the above further solution is that the friction pattern is provided to facilitate the user to better hold the lancet handle.
[0019] Furthermore, the shelf limiter is made of a transparent material, and has an appearance of a hollow frustum that is narrow at the top and wide at the bottom.
[0020] The beneficial effect of adopting the above further solution is that the transparent limiter makes it easier for operators to observe the scale markings. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the structure of the utility model;
[0022] Figure 2 It is a structural schematic diagram of the frame limiter in the utility model;
[0023] Figure 3 It is a structural schematic diagram of the puncture needle in the utility model;
[0024] Figure 4 It is a cross-sectional view of the structure of the utility model.
[0025] In the figure: 1. needle handle; 2. puncture needle; 3. external thread; 4. threaded sleeve; 5. frame limiter; 6. connecting sleeve; 7. internal thread; 8. fastening sleeve; 9. scale groove; 10. retaining ring; 11. friction pattern. DETAILED DESCRIPTION
[0026] 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.
[0027] In the embodiment, Figure 1-4 A device for making a model of intervertebral disc degeneration in small animals is provided. The utility model comprises a puncture needle handle 1 and a puncture needle 2. A friction pattern 11 is provided on the outer wall of the puncture needle handle 1. The friction pattern 11 is provided to facilitate a user to better hold the puncture needle handle 1 and prevent the puncture needle handle 1 from slipping during the puncture experiment.
[0028] The top of the puncture needle 2 is fixedly connected with a connecting sleeve 6, and an internal thread 7 is provided on the outer wall of the connecting sleeve 6. The connecting sleeve 6 is threadedly connected to the puncture needle handle 1 through the internal thread 7. The puncture needle 2 can be removed by rotating it, and the puncture needle 2 of different diameters can be easily replaced, so that it can be suitable for a variety of animals and can perform puncture experiments on a variety of animals.
[0029] A scale groove 9 is provided on the outer wall of the puncture needle 2. The scale markings on the scale groove 9 are spaced at intervals of 0.2 cm. The scale markings are used to improve the accuracy of the acupuncture depth.
[0030] The outside of the connecting sleeve 6 is fixedly connected with an annular fastening sleeve 8, which is in close contact with the puncture needle handle 1. The diameter of the fastening sleeve 8 is the same as the diameter of the puncture needle handle 1. The inside of the puncture needle handle 1 is provided with a puncture cavity connected to the puncture needle 2. A retaining ring 10 is fixedly connected to the inner wall of the puncture cavity. The connecting sleeve 6 is in close contact with the retaining ring 10, and the retaining ring 10 is funnel-shaped. The fastening sleeve 8 improves the sealing of the connection with the puncture needle handle 1, and the retaining ring 10 improves the sealing of the connection with the connecting sleeve 6.
[0031] An external thread 3 is provided on the outer wall of the puncture needle handle 1, and a threaded sleeve 4 is connected to the external thread of the puncture needle handle 1. The external part of the threaded sleeve 4 is fixedly connected to a limiter 5. The limiter 5 is made of a transparent material. The shape of the limiter 5 is a hollow frustum that is narrow at the top and wide at the bottom. The transparent limiter 5 allows the operator to better observe the scale mark. The limiter 5 is in close contact with the mouse to control the depth of the puncture needle 2. The position of the limiter 5 can be adjusted to adjust the puncture depth of the puncture needle 2, thereby improving the accuracy of the puncture experiment.
[0032] Working principle:
[0033] The limiter 5 is rotated to move on the needle handle 1, and the position of the limiter 5 is adjusted to adjust the puncture depth of the puncture needle 2. The user can better hold the needle handle 1 through the friction pattern 11, and conduct the acupuncture experiment after finding a good position. The limiter 5 is in close contact with the mouse, so that the puncture needle 2 cannot go deeper. The scale marking is convenient for the user to control the acupuncture depth and reduce the number of punctures.
[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0035] 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. A device for modeling intervertebral disc degeneration in small animals, comprising a puncture needle handle (1) and a puncture needle (2), characterized in that: The outer wall of the puncture needle handle (1) is provided with an external thread (3), the external thread of the puncture needle handle (1) is connected to a threaded sleeve (4), the outside of the threaded sleeve (4) is fixedly connected to a limiter (5), the top of the puncture needle (2) is fixedly connected to a connecting sleeve (6), the outer wall of the connecting sleeve (6) is provided with an internal thread (7), and the connecting sleeve (6) is threadedly connected to the puncture needle handle (1) via the internal thread (7).
2. The small animal intervertebral disc degeneration modeling device according to claim 1, characterized in that: An annular fastening sleeve (8) is fixedly connected to the outside of the connecting sleeve (6); the fastening sleeve (8) is in close contact with the lancet handle (1); and the diameter of the fastening sleeve (8) is the same as that of the lancet handle (1).
3. The device for making a small animal intervertebral disc degeneration model according to claim 1, characterized in that: A scale groove (9) is provided on the outer wall of the puncture needle (2), and the scale markings on the scale groove (9) are spaced at intervals of 0.2 cm.
4. The small animal intervertebral disc degeneration modeling device according to claim 1, characterized in that: The interior of the puncture needle handle (1) is provided with a puncture cavity connected to the puncture needle (2), a retaining ring (10) is fixedly connected to the inner wall of the puncture cavity, the connecting sleeve (6) is in close contact with the retaining ring (10), and the retaining ring (10) is funnel-shaped.
5. The small animal intervertebral disc degeneration model making device according to claim 1, characterized in that: The outer side wall of the needle handle (1) is provided with friction lines (11).
6. The small animal intervertebral disc degeneration model making device according to claim 1, characterized in that: The frame limiter (5) is made of a transparent material, and has an outer shape of a hollow truncated cone that is narrow at the top and wide at the bottom.