Acupuncture needle with plastic clamping handle
By forming a concave clamp on the plastic pipe handle of the medical acupuncture needle and clamping the needle body using high-temperature compression technology, the problem of insolid dispensing welding is solved, efficient and low-cost connection is achieved, and safety and stability.
Patent Information
- Application Number
- CN202322889661.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-26
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-10-26
AI Technical Summary
The plastic pipe handle and needle body dispensing of existing medical acupuncture needles are not strongly welded, which poses safety risks and is costly, and the connection between the needle body and needle handle is uneven, resulting in insufficient fixity.
By pressing the wall of the plastic pipe handle at high temperature to form a concave clamping part, the needle body is clamped in the plastic pipe handle, and the melting characteristics of the plastic material are used to achieve a clamping-type fixed connection, avoiding the use of dispensing and reducing the use of glue The friction coefficient and clamping force are improved through local processing.
It realizes a firm connection between the needle body and the plastic pipe handle, improves safety and stability, reduces production costs, and avoids the pollution problem of dispensing, and has a wide range of applications.
Smart Images
Figure CN222130583U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical instruments, in particular to an acupuncture needle with a plastic clamp handle. Background Art
[0002] At present, acupuncture needles used in traditional Chinese medicine are miniature medical devices, with the diameter of the needle body as small as 0.10mm and the diameter of the needle handle being about 2mm. Therefore, the firmness of the connection between the needle body and the needle handle has always restricted the safe operation of the industry. The conventional method is to bend the end of the needle body, and use strong force to pull the bent part of the needle body into the needle handle, so that the needle body is fixed in the needle handle to achieve a certain firmness index. Although the needle body is inserted into the needle handle, because the inner diameter of the needle handle is larger than the diameter of the needle body, there is a gap and a notch at the end, and there is a lack of effective connection between the needle body and the needle handle, which poses many safety hazards. Moreover, since the thinner needle body is not strong enough after being bent and inserted, this method can only be used for thicker needle bodies, and in order to ensure firmness, the thicker needle body is bent more, resulting in some bending of the plastic handle after insertion, and problems such as tilting of the needle body.
[0003] Originally, the needle body and the needle handle could be assembled and connected by dispensing UV light-curing glue. However, since this UV light-curing glue needs to have a certain viscosity, its fluidity is limited. There are problems of unevenness in the amount of glue dispensed from the plastic tube handle and the depth of glue penetration into the plastic tube handle, which leads to unevenness in the firmness of the needle body inside after the glue is cured. At the same time, the dispensing of glue itself will cause glue to overflow from the outside of the plastic tube handle, causing pollution. It is often found that the glue does not cure and dry thoroughly, and there is adhesion between the plastic tube handles during the production process. In addition, this UV light glue is usually more expensive. Utility Model Content
[0004] 1. Technical problems to be solved by the utility model
[0005] In view of the problem that the plastic tube handle and the needle body of the existing Chinese medical acupuncture needle with a plastic handle are not firmly welded, the utility model provides an acupuncture needle with a plastic clamp handle. A concave clamping part is formed on the wall of the plastic tube handle by high-temperature pressing. The concave clamping part clamps the needle body in the plastic tube handle. The manufacturing process is simple and the cost is low.
[0006] 2. Technical solution
[0007] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:
[0008] An acupuncture needle with a plastic clamp handle comprises a needle body and a plastic tube handle. The wall of the plastic tube handle is compressed at high temperature to form a concave clamp portion, and the concave clamp portion clamps the needle body in the plastic tube handle, making full use of the relatively easy-to-position melt-softened plastic material of the plastic tube handle itself, thereby achieving clamping and fixing the needle body without the need for glue dispensing, thereby reducing the production cost. The production method of the plastic tube handle is not limited to extrusion and injection molding processes, and has a wide range of applications.
[0009] A further technical solution is that a part of the needle body is roughened, frosted or flattened, and the roughened, frosted or flattened surface is generally arranged at the fixed section with the needle body to increase the connection surface and friction coefficient with the concave clamping part and improve the firmness.
[0010] According to a further technical solution, the concave clamping parts are symmetrically arranged on the plastic pipe handle, and symmetrical double-sided clamping is performed to further improve the clamping force.
[0011] According to a further technical solution, the concave clamping portion is arranged in an annular shape on the plastic tube handle and is tightened in a neck-type manner, so that the clamping force on the needle body is stronger.
[0012] According to a further technical solution, the needle body is provided with a curved section; the recessed clamping portion is clamped on the curved section, and the curved section forms a blocking position, which can prevent the needle body from escaping from the plastic tube handle.
[0013] According to a further technical solution, the curved section is wavy, zigzag or spiral, which increases the clamping surface and can form multi-level barriers.
[0014] According to a further technical solution, the concave clamping part is generated by various heating methods such as electric heating, microwave heating or friction heating, and the corresponding heating method is selected according to different plastics and tube wall thicknesses, which can reduce the corresponding production cost.
[0015] A method for making the above-mentioned acupuncture needle with a plastic clamp handle, comprising the following steps:
[0016] S1. Insert the needle into the plastic tube handle;
[0017] S2, clamping the plastic pipe handle between the welding head upper die and the welding head lower die of the welding tool, and heating the welding head upper die and the welding head lower die to the clamping part of the plastic pipe handle wall to soften and deform to form a concave clamping part;
[0018] S3. After the welding head upper mold and the welding head lower mold are loosened, the concave clamping part cools and hardens to clamp the needle body in the plastic tube handle.
[0019] 3. Beneficial effects
[0020] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:
[0021] (1) The plastic clamp handle acupuncture needle of the utility model makes full use of the relatively easy positioning of the molten plastic material of the plastic tube handle, and leaves a concave clamp portion at the welding position, which clamps the needle body in the plastic tube handle, is easy to operate, and has a strong fixed connection;
[0022] (2) When the acupuncture needle with a plastic clamp handle of the utility model is bent into a wave shape, the welding firmness can be increased;
[0023] (3) The plastic clamp handle acupuncture needle of the utility model has a partially processed roughened surface, frosted surface or flattened surface on the needle body, which can effectively improve the connection surface and friction coefficient between the needle body and the concave clamping part, and improve the connection firmness;
[0024] (4) The plastic clamp handle acupuncture needle of the utility model has low cost and can be welded without introducing other welding materials, thus saving materials and being environmentally friendly;
[0025] (5) The utility model provides an acupuncture needle with a plastic clamp handle. The manufacturing method of the plastic tube handle is not limited to extrusion molding and injection molding, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the structure of an acupuncture needle with a plastic clamp handle according to a specific embodiment;
[0027] Figure 2 It is a schematic diagram of the structure of an acupuncture needle with a plastic clamp handle according to a specific embodiment;
[0028] Figure 3 It is a schematic diagram of the structure of an acupuncture needle with a plastic clamp handle according to a specific embodiment;
[0029] Figure 4 It is a schematic diagram of the structure of an acupuncture needle with a plastic clamp handle according to a specific embodiment;
[0030] Figure 5 for Figure 4 A schematic diagram of the structure after the A part is enlarged;
[0031] Figure 6 It is a schematic diagram of the upper and lower mold structures of the welding head in a specific embodiment;
[0032] Figure 7 for Figure 6 Schematic diagram of the structure after the B part is enlarged;
[0033] Figure 8 for Figure 6 Schematic diagram of the three-dimensional structure;
[0034] Fig. 9 It is a schematic diagram of the upper and lower mold structures of the welding head in a specific embodiment;
[0035] Fig.10 for Fig. 9 Schematic diagram of the structure after the C part is enlarged.
[0036] In the figure: 1-needle body; 2-plastic clamp handle; 3-concave clamping part; 5-welding tool; 11-bending section; 55-welding head upper mold; 56-welding head lower mold. DETAILED DESCRIPTION
[0037] In order to further understand the content of the utility model, the utility model is described in detail with reference to the accompanying drawings.
[0038] Example 1
[0039] The plastic clamp handle acupuncture needle of this embodiment, such as Figure 1 As shown, it includes a needle body 1 and a plastic tube handle 2. The plastic tube handle 2 is made of plastic or resin, and the needle body 1 is generally medical stainless steel wire. The wall of the plastic tube handle 2 is compressed at high temperature to form a concave clamp 3, and the concave clamp 3 clamps the fixed end of the needle body 1 in the plastic tube handle 2. The concave clamp 3 is generated by various heating methods such as electric heating, microwave heating or friction heating. The corresponding heating method is selected according to different plastics and tube wall thicknesses to reduce the corresponding production cost. After the local tube wall of the plastic tube handle 2 is heated at a corresponding temperature according to the softening point of the corresponding plastic material of the plastic tube handle 2, the local softening can be extruded by a mold to form a concave clamp 3. The production method of the plastic tube handle 2 is not limited to extrusion and injection molding processes, and has a wide range of applications.
[0040] The manufacturing method of the acupuncture needle with a plastic clamp handle of this embodiment comprises the following steps:
[0041] S1, insert the fixed end of the needle body 1 into the plastic tube handle 2, and extend the working end out of the plastic tube handle 2;
[0042] S2, clamp the fixed end of the plastic pipe handle 2 between the welding head upper die 55 and the welding head lower die 56 of the welding tool 5, and heat the clamping part of the pipe wall of the plastic pipe handle 2 by the welding head upper die 55 and the welding head lower die 56 to soften and deform to form a concave clamping part 3;
[0043] S3, after the welding head upper mold 55 and the welding head lower mold 56 are loosened, the concave clamping part 3 is cooled, solidified and hardened to clamp the fixed end of the needle body 1 in the plastic tube handle 2.
[0044] like Figure 6 , 7 As shown, the welding tool 5 includes a welding head, and the welding head includes a welding head upper mold 55 and a welding head lower mold 56 which are arranged in cooperation.
[0045] When an electric heating welding tool is used, in step S2, the welding head upper mold 55 and the welding head lower mold 56 of the welding tool 5 generate electric heating. When the welding head upper mold 55 and the welding head lower mold 56 contact the outer wall of the plastic pipe handle 2, the welding head upper mold 55 and the welding head lower mold 56 heat the clamping part of the plastic pipe handle 2. After the temperature rises to the melting point of the plastic, soft melting occurs. The clamping part of the welding head upper mold 55 and the welding head lower mold 56 on the pipe wall of the plastic pipe handle 2 is deformed to form a concave clamping part 3.
[0046] When microwave heating, friction heating or other high temperature welding tools are used, the processing steps are the same as those for electric heating welding tools and will not be repeated.
[0047] The acupuncture needle with a plastic clamp handle in this embodiment makes full use of the relatively easy positioning of the molten plastic material of the plastic tube handle 2, leaving a concave clamp portion 3 at the welding position, which clamps the fixed end of the needle body 1 in the plastic tube handle 2, is easy to operate, and has a strong fixed connection.
[0048] Example 2
[0049] The plastic clamp handle acupuncture needle of this embodiment has the same basic structure as that of embodiment 1, with the difference and improvement being that a part of the needle body 1 has a roughened, frosted or flattened surface after being roughened, frosted or flattened. The roughened, frosted or flattened surface is generally arranged at the fixed section with the needle body 1 to increase the connection surface and friction with the recessed clamp portion 3, thereby improving the firmness of the fixed connection.
[0050] Example 3
[0051] The basic structure of the plastic clamp handle acupuncture needle of this embodiment is the same as that of embodiment 2, except that: Figure 2 As shown, the concave clamping part 3 is symmetrically arranged on the plastic pipe handle 2, and symmetrical double-sided clamping is performed to further improve the clamping force.
[0052] The manufacturing method of the plastic clamp handle acupuncture needle of this embodiment has the same basic steps as the embodiment 1, except that: in step S2, Fig. 9 and 10 As shown, the clamping openings of the welding head upper mold 55 and the welding head lower mold 56 of the welding tool 5 are symmetrically arranged in the upper and lower parts.
[0053] Example 4
[0054] The basic structure of the plastic clamp handle acupuncture needle of this embodiment is the same as that of embodiment 2, except that: Figure 3 As shown, the concave clamping portion 3 is arranged in an annular shape on the plastic tube handle 2, and is tightened in a neck-type manner, so that the clamping force on the needle body 1 is stronger.
[0055] The manufacturing method of the plastic clamp handle acupuncture needle of this embodiment has the same basic steps as the embodiment 1, except that: in step S2, Figure 6 , 7 As shown in FIG8 , the clamping openings of the welding head upper mold 55 and the welding head lower mold 56 of the welding tool 5 are combined to form an annular clamping cavity.
[0056] Example 5
[0057] The plastic clamp handle acupuncture needle of this embodiment has the same basic structure as any one of the embodiments 1 to 4, except that: Figure 4 , 5As shown, the fixed end of the needle body 1 is provided with a curved section 11; the concave clamping portion 3 is clamped on the curved section 11, and the curved section 11 forms a blocking position, which can prevent the needle body 1 from escaping from the plastic tube handle 2. The curved section 11 is wavy, zigzag or spiral, which increases the clamping surface and can form a multi-level blocking.
[0058] The manufacturing method of the acupuncture needle with a plastic clamp handle of the present embodiment has the same basic steps as those of the first embodiment, and the difference or improvement lies in that, in step S2, after the welding head upper mold 55 and the welding head lower mold 56 deform the clamping part of the tube wall of the plastic tube handle 2 to form a concave clamping part 3, the needle body 1 is axially inserted into the plastic tube handle 2. At this time, the wavy, serrated or spiral fixed end of the needle body 1 is fully mixed with the concave clamping part 3 of the molten body, and the concave clamping part 3 is cooled, solidified and hardened to fix the needle body 1 more firmly.
[0059] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure and manufacturing steps are not limited thereto. Therefore, if a person skilled in the art is inspired by it and, without departing from the purpose of the invention, designs a structure and an implementation method similar to the technical solution without creativity, they should all fall within the protection scope of the present invention.
Claims
1. An acupuncture needle with a plastic clamp handle, comprising a needle body (1) and a plastic tube handle (2), characterized in that: The wall of the plastic tube handle (2) is compressed at high temperature to form a concave clamping portion (3), and the concave clamping portion (3) clamps the needle body (1) in the plastic tube handle (2); the needle body (1) is provided with a curved section (11); and the concave clamping portion (3) is clamped in the curved section (11).
2. The acupuncture needle with a plastic clamp handle according to claim 1, characterized in that: Part of the needle body (1) is a roughened surface, a frosted surface or a flattened surface.
3. The acupuncture needle with a plastic clamp handle according to claim 1, characterized in that: The concave clamping portion (3) is symmetrically arranged on the plastic tube handle (2).
4. The acupuncture needle with a plastic clamp handle according to claim 1, characterized in that: The concave clamping portion (3) is arranged in an annular shape on the plastic tube handle (2).
5. The acupuncture needle with a plastic clamp handle according to claim 1, characterized in that: The curved section (11) is in a wave shape, a sawtooth shape or a spiral shape.
6. An acupuncture needle with a plastic clamp handle according to any one of claims 1 to 5, characterized in that: The concave clamping portion (3) is generated by electric heating, microwave heating or friction heating.