CN221383585U - Myoelectric needle capable of reducing puncture resistance - Google Patents
Myoelectric needle capable of reducing puncture resistance Download PDFInfo
- Publication number
- CN221383585U CN221383585U CN202420204531.1U CN202420204531U CN221383585U CN 221383585 U CN221383585 U CN 221383585U CN 202420204531 U CN202420204531 U CN 202420204531U CN 221383585 U CN221383585 U CN 221383585U
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- China
- Prior art keywords
- needle
- guide groove
- needle body
- puncture resistance
- handle
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- 230000003183 myoelectrical effect Effects 0.000 title claims abstract description 18
- 210000001503 joint Anatomy 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 230000001050 lubricating effect Effects 0.000 claims description 5
- 230000004323 axial length Effects 0.000 claims description 4
- 229910001080 W alloy Inorganic materials 0.000 claims description 3
- 239000012790 adhesive layer Substances 0.000 claims description 3
- ZONODCCBXBRQEZ-UHFFFAOYSA-N platinum tungsten Chemical compound [W].[Pt] ZONODCCBXBRQEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an myoelectric needle for reducing puncture resistance, which comprises a needle body, a spring plate and a needle handle, wherein the spring plate comprises a cylindrical structure provided with a strip-shaped notch extending axially, and the cylindrical structure is in interference fit connection with an inner cavity of the needle handle; the elastic sheet further comprises a guide groove part for axially and slidably connecting the needle body, the guide groove part is connected with the cylindrical structure, and the guide groove part is fixedly connected with the outer wall of the needle body in a welding way; the needle handle is provided with a perforation passing through the needle body; the needle handle is provided with a containing cavity for containing the elastic sheet, the containing cavity is in butt joint and conduction with the perforation, and the inner wall of the containing cavity is provided with a guide rib for guiding the strip-shaped notch to axially slide; the central axis direction of the guide groove part, the central axis direction of the cylindrical structure and the central axis direction of the needle handle are parallel. According to the utility model, through structural optimization of the elastic sheet and the needle handle, the coaxiality of the elastic sheet, the needle handle and the needle body is ensured in the assembling process, the inclination of the needle body is prevented, and the direction of the puncture force is ensured to be parallel to the direction of the needle body.
Description
Technical Field
The utility model relates to the technical field of electric stimulation devices, in particular to an myoelectric needle.
Background
The existing myoelectric needle structure generally comprises a needle handle, a needle body, a conductive terminal and an elastic sheet, wherein the needle body is formed by bonding a needle tube and a needle core. See chinese patent publication No. CN218943358U for a disposable myoelectric needle fixing hub.
The large resistance of the needle tip causes the pain of the patient to be aggravated when the skin is inserted into muscle tissue, and the reason is that: 1. the direction of the inclined plane of the needle point cannot be identified, a doctor cannot judge the direction of the inclined plane when inserting the needle, and the puncture force is large, so that the pain of a patient is aggravated; 2. the needle tube is inclined, namely the needle body is inclined to the needle handle, the puncture force direction is not coaxial with the needle body, and the puncture force needs to be increased so that the pain of a patient is aggravated.
Disclosure of utility model
Aiming at the problems and the defects existing in the prior art, the utility model provides the myoelectric needle for reducing the puncture resistance.
The utility model solves the technical problems by the following technical proposal:
The utility model provides a myoelectric needle for reducing puncture resistance, which comprises a needle body, an elastic sheet and a needle handle, and is characterized in that the elastic sheet comprises a cylindrical structure provided with an axially extending strip-shaped notch, and the cylindrical structure is in interference fit connection with an inner cavity of the needle handle;
The elastic sheet further comprises a guide groove part which is used for axially and slidably connecting the needle body, the guide groove part is connected with the cylindrical structure, and the guide groove part is fixedly connected with the outer wall of the needle body in a welding way;
The needle handle is provided with a perforation passing through the needle body;
The needle handle is provided with a containing cavity for containing the elastic sheet, the containing cavity is in butt joint conduction with the perforation, and the inner wall of the containing cavity is provided with a guide rib for guiding the strip-shaped notch to axially slide;
The central axis direction of the guide groove part, the central axis direction of the cylindrical structure and the central axis direction of the needle handle are parallel.
According to the utility model, through optimizing the structure of the myoelectric needle and optimizing the structures of the elastic sheet and the needle handle, the coaxiality of the three parts in the assembly process is ensured, the needle body is prevented from tilting, and the direction of the puncture force is ensured to be parallel to the direction of the needle body.
Further preferably, an extension extending axially downward is connected to the cylindrical structure;
The axial length of the extension part is greater than that of the guide groove part;
the guide groove part comprises an opening ring, and two ends of the opening ring are connected with the extension part through bending connecting parts.
Further preferably, the opening direction of the opening ring is opposite to the strip-shaped notch.
Further preferably, a gap exists between the guide groove portion and the cylindrical structure.
Further preferably, the end part of the needle body is provided with a needle tip, and the position of the inclined plane of the needle tip in the circumferential direction of the needle body is matched with the position of the strip-shaped notch in the circumferential direction of the elastic sheet;
The outer wall of the needle handle is provided with a positioning mark for marking the position of the needle tip inclined plane of the needle body;
The guide rib and the positioning mark are respectively positioned at the inner side and the outer side of the same area in the circumferential direction of the needle handle.
The identification of the needle tip inclined plane position of the needle body is convenient to realize.
Further preferably, the outer wall of the needle handle is provided with a concave groove, and an interval angle is reserved between the concave groove and the positioning mark, and is smaller than 180 degrees.
Further preferably, the notch of the groove is elliptical.
Further preferably, the needle body comprises a needle core and a needle tube which are arranged inside and outside, and the needle core is connected with the needle tube through an adhesive layer;
the needle tube is made of stainless steel, and the needle core is made of platinum-tungsten alloy.
The strength is convenient to be improved.
Further preferably, the outer surface of the region of the needle body outside the needle handle is coated with a transparent lubricating coating.
Further preferably, the transparent lubricating coating is a polyvinyl chloride coating.
On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the utility model.
The utility model has the positive progress effects that:
1) The needle tip direction can be identified by observing the positioning mark on the needle handle when a doctor uses the needle tip.
2) The surface of the needle tube is coated with a lubricating coating, so that the puncture friction force is reduced.
3) The concentricity of the needle body and the needle handle can be ensured, the needle body is prevented from tilting, the puncture direction is convenient to control, and the puncture resistance is reduced.
Drawings
FIG. 1 is an exploded view of embodiment 1 of the present utility model;
FIG. 2 is a cross-sectional view of embodiment 1 of the present utility model;
FIG. 3 is a schematic view showing a structure of a handle according to embodiment 1 of the present utility model;
FIG. 4 is a schematic structural view of a spring plate according to embodiment 1 of the present utility model;
Fig. 5 is a schematic view of a spring sheet according to another embodiment 1 of the present utility model under another view.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 3, in embodiment 1, an myoelectric needle for reducing puncture resistance includes a needle body 3, a spring 1 and a needle handle 2, wherein the spring 1 includes a cylindrical structure 102 provided with an axially extending strip-shaped notch 101, and the cylindrical structure 102 is in interference fit connection with an inner cavity of the needle handle 2; the elastic sheet 1 further comprises a guide groove part 103 for axially and slidably connecting the needle body 3, the guide groove part 103 is connected with the cylindrical structure 102, and the guide groove part 103 is fixedly connected with the outer wall of the needle body 3 by welding; the needle handle 2 is provided with a perforation passing through the needle body 3; the needle handle 2 is provided with a containing cavity for containing the elastic sheet 1, the containing cavity is in butt joint conduction with the perforation, and the inner wall of the containing cavity is provided with a guide rib 201 for guiding the strip-shaped notch 101 to axially slide; the direction of the central axis of the guide groove 103, the direction of the central axis of the cylindrical structure 102, and the direction of the central axis of the needle shaft 2 are parallel. According to the utility model, through optimizing the structure of the myoelectric needle and optimizing the structures of the elastic sheet 1 and the needle handle 2, the coaxiality of the three parts in the assembly process is ensured, the needle body 3 is prevented from tilting, and the direction of the puncture force is ensured to be parallel to the direction of the needle body 3. The guide groove 103, the cylindrical structure 102 and the needle shaft 2 are coaxial.
The accommodating cavity is cylindrical. The holding cavity is in butt joint and conduction with the perforation through a conical structure with a wide upper part and a narrow lower part.
The cylindrical structure 102 has an extension connected thereto that extends axially downward; the axial length of the extension part is greater than that of the guide groove part; the guide groove 103 includes a split ring, and both ends of the split ring are connected to the extension portion through a bent connection portion. The opening direction of the opening ring is opposite to the strip-shaped notch 101. A gap exists between the guide groove 103 and the cylindrical structure 102. The gap width of the strip-shaped notch 101 is 1-3 mm. The elastic sheet 1 can be fixed inside the needle handle 2 by extrusion and shrinkage. The axial length of the guide groove part is 2-5 mm. The inner diameter of the guide groove is larger than the diameter of the needle body 3. To ensure that the needle body 3 is coaxial with the needle shaft 2.
The end part of the needle body 3 is provided with a needle tip, and the position of the inclined plane of the needle tip in the circumferential direction of the needle body 3 is matched with the position of the strip-shaped notch 101 in the circumferential direction of the elastic sheet 1; the outer wall of the needle handle 2 is provided with a positioning mark 203 for marking the position of the needle tip inclined plane of the needle body 3; the guide rib 201 and the positioning mark 203 are respectively positioned on the inner side and the outer side of the same area in the circumferential direction of the needle handle 2. The identification of the needle tip bevel position of the needle body 3 is convenient to realize.
The outer wall of the needle handle 2 is provided with a concave groove 202, and the groove 202 and the positioning mark 203 are provided with an interval angle which is smaller than 180 degrees. The notch of the groove 202 is elliptical.
The needle body 3 comprises a needle core 303 and a needle tube 302 which are arranged inside and outside, and the needle core 303 is connected with the needle tube 302 through an adhesive layer; the needle tube 302 is made of stainless steel, and the needle core is made of platinum-tungsten alloy. The strength is convenient to be improved. The outer wall of the needle tube is fixedly connected with the elastic sheet in a welding way.
The assembly method comprises the following steps:
The top of the needle body 3 passes through the guide groove part 103 of the spring plate 1, and the needle body 3 is welded and fixed with the spring plate 1; the welded needle body 3 passes through the needle handle 2, and the elastic sheet 1 slides into the needle handle along the guide rib 201.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.
Claims (10)
1. The myoelectric needle capable of reducing puncture resistance comprises a needle body, an elastic sheet and a needle handle, and is characterized in that the elastic sheet comprises a cylindrical structure provided with an axially extending strip-shaped notch, and the cylindrical structure is in interference fit connection with an inner cavity of the needle handle;
The elastic sheet further comprises a guide groove part which is used for axially and slidably connecting the needle body, the guide groove part is connected with the cylindrical structure, and the guide groove part is fixedly connected with the outer wall of the needle body in a welding way;
The needle handle is provided with a perforation passing through the needle body;
The needle handle is provided with a containing cavity for containing the elastic sheet, the containing cavity is in butt joint conduction with the perforation, and the inner wall of the containing cavity is provided with a guide rib for guiding the strip-shaped notch to axially slide;
The central axis direction of the guide groove part, the central axis direction of the cylindrical structure and the central axis direction of the needle handle are parallel.
2. An electromyographic needle for reducing puncture resistance according to claim 1, wherein said cylindrical structure is connected with an extension extending axially downwards;
The axial length of the extension part is greater than that of the guide groove part;
the guide groove part comprises an opening ring, and two ends of the opening ring are connected with the extension part through bending connecting parts.
3. The myoelectric needle for reducing puncture resistance according to claim 2, wherein the opening direction of the opening ring is opposite to the strip-shaped notch.
4. An electromyographic needle for reducing puncture resistance according to claim 1, wherein a gap exists between said guide groove portion and said cylindrical structure.
5. The myoelectric needle for reducing puncture resistance according to claim 1, wherein a needle tip is arranged at the end of the needle body, and the position of the inclined plane of the needle tip in the circumferential direction of the needle body is matched with the position of the strip-shaped notch in the circumferential direction of the elastic sheet;
The outer wall of the needle handle is provided with a positioning mark for marking the position of the needle tip inclined plane of the needle body;
The guide rib and the positioning mark are respectively positioned at the inner side and the outer side of the same area in the circumferential direction of the needle handle.
6. The myoelectric needle for reducing puncture resistance according to claim 5, wherein the outer wall of the needle handle is provided with a concave groove, and the groove and the positioning mark are spaced by an angle less than 180 degrees.
7. The myoelectric needle for reducing puncture resistance according to claim 6, wherein the notch of the groove is elliptical.
8. The myoelectric needle for reducing puncture resistance according to claim 1, wherein the needle body comprises a needle core and a needle tube which are arranged inside and outside, and the needle core is connected with the needle tube through an adhesive layer;
the needle tube is made of stainless steel, and the needle core is made of platinum-tungsten alloy.
9. An electromyographic needle for reducing puncture resistance according to claim 1, wherein the outer surface of the needle body in the region outside the needle handle is coated with a transparent lubricating coating.
10. The myoelectric needle for reducing puncture resistance according to claim 9, wherein the transparent lubricating coating is a polyvinyl chloride coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420204531.1U CN221383585U (en) | 2024-01-29 | 2024-01-29 | Myoelectric needle capable of reducing puncture resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420204531.1U CN221383585U (en) | 2024-01-29 | 2024-01-29 | Myoelectric needle capable of reducing puncture resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221383585U true CN221383585U (en) | 2024-07-23 |
Family
ID=91939730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420204531.1U Active CN221383585U (en) | 2024-01-29 | 2024-01-29 | Myoelectric needle capable of reducing puncture resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221383585U (en) |
-
2024
- 2024-01-29 CN CN202420204531.1U patent/CN221383585U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |