Inclined surface positioning device for needle point of myoelectric needle

Abstract

The utility model discloses a myoelectric needle tip inclined plane positioning device which comprises a needle body fixing plate used for fixing a plurality of needle bodies, when each needle body is fixed on the needle body fixing plate, the inclined plane of the needle tip of the needle body is always kept upward, and an inclined plane fixing plate is fixed on the surface of the end, close to the needle tip, of the needle body fixing plate. The inclined plane positioning plate abuts against the inclined plane of the needle point, the end, away from the needle point, of the needle body fixing plate is provided with an elastic piece fixing plate used for fixing elastic pieces matched with the needle bodies one to one, each elastic piece is provided with an elastic piece welding part and an elastic piece slotting part, and when the elastic pieces are fixed to the elastic piece fixing plate, the elastic piece slotting parts are always kept upward. The elastic sheet fixing plate is in butt joint with the needle body fixing plate, so that the needle body penetrates through the center of the corresponding elastic sheet and is located on the same axis with the center of the corresponding elastic sheet.

Description

Technical Field

[0001] The utility model relates to the technical field of electromyographic needles, in particular to a device for positioning the bevel of an electromyographic needle tip. Background Art

[0002] The bevel of the needle tip of the existing electromyography needle cannot be positioned, which makes it impossible for the doctor to determine the direction of the bevel of the needle tip during operation, resulting in aggravated pain for the patient; the needle body of the existing electromyography needle is connected to the conductor by crimping. Before crimping, the insulating coating of the needle core needs to be scraped off with a blade, which is time-consuming and labor-intensive, and will not only damage the needle core, but may also cause the connection to be broken due to insufficient scraping; the needle body will be subjected to force during crimping, and there will be the following risks: 1. Damage to the needle body, causing short circuit or break; 2. The needle body will tilt when subjected to force, resulting in it being not on the same axis as the conductor; 3. The unstable and uneven pressure received by the crimping makes the connection firmness uncontrollable, affecting use; and the crimping process is complicated to operate, and the efficiency of crimping one needle at a time is slow, which is not suitable for mass production. Utility Model Content

[0003] The utility model aims at the problems and shortcomings of the prior art and provides a device for positioning the bevel of an electromyography needle tip.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] The utility model provides a device for positioning the bevel of the needle tip of an electromyography needle, characterized in that it includes a needle body fixing plate for fixing multiple needle bodies, when each needle body is fixed on the needle body fixing plate, the bevel of the needle tip of the needle body always remains facing upward, a bevel fixing plate is fixed on the end surface of the needle body fixing plate close to the needle tip, the bevel positioning plate is in conflict with the bevel of the needle tip, and the end of the needle body fixing plate away from the needle tip is provided with a spring clip fixing plate for fixing spring clips that match the needle bodies one by one, the spring clips are provided with a spring clip welding portion and a spring clip slot portion, when the spring clip is fixed on the spring clip fixing plate, the spring clip slot portion always remains facing upward, so that the bevel of the needle tip and the spring clip slot portion are in the same direction to identify the bevel direction, the spring clip fixing plate is docked with the needle body fixing plate, so that the needle body passes through the center of the corresponding spring clip and is on the same axis with it.

[0006] Specifically, the needle body fixing plate is provided with a plurality of needle body slots spaced apart in the longitudinal direction, the needle body slots are arranged transversely and parallel to each other, a needle body is embedded and fixed in each of the needle body slots, and the inclined surface of the needle tip is always kept facing upwards;

[0007] Symmetrical L-shaped fixing seats are fixed on the left and right sides of the end surface of the needle body fixing plate close to the needle tip, the left end of the inclined surface fixing plate is placed in the L-shaped fixing seat on the left side and fixed to the left end of the inclined surface fixing plate by bolts passing through the top, and the right end is placed in the L-shaped fixing seat on the right side and fixed to the right end of the inclined surface fixing plate by bolts passing through the top;

[0008] The spring-piece fixing plate is provided with spring-piece slots corresponding to the needle body slots at intervals along the longitudinal direction, and the axis of each needle body slot corresponds to the axis of the corresponding spring-piece slot. The spring-piece slots are arranged transversely and parallel to each other, and a spring piece is embedded and fixed in each spring piece slot, and the inclined surface of the spring piece slot portion is always kept upward;

[0009] The left and right ends of the needle body fixing plate away from the needle tip are fixed with positioning seats, the positioning seats extend out of the needle body fixing plate, the spring sheet fixing plate is connected to the needle body fixing plate, the spring sheet fixing plate is limited between the two positioning seats, and the top of the spring sheet fixing plate is flush with the top of the needle body fixing plate.

[0010] The positive and progressive effects of the utility model are:

[0011] 1. The bevel of the needle tip of the electromyography needle is in the same direction as the slot of the shrapnel, so that the direction of the bevel can be identified based on the slot of the shrapnel, making it easier for doctors to determine the position of the bevel of the needle tip.

[0012] 2. There is no need to scrape the insulating coating off the needle core.

[0013] 3. The crimping process is changed to welding, and the needle body is no longer subjected to stress, which solves the problem of short circuit or open circuit caused by the needle body being subjected to stress, the needle body being tilted due to stress, and the needle body being subjected to uneven and unstable stress, resulting in uncontrollable connection firmness.

[0014] 4. Products are arranged in a row, whether it is manual welding or automated machine welding, the production efficiency can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an exploded view of the bevel positioning device for the tip of an electromyographic needle according to a preferred embodiment of the utility model.

[0016] Figure 2 This is an assembly diagram of the bevel positioning device for the tip of an electromyographic needle according to a preferred embodiment of the utility model.

[0017] Figure 3 The figure is a schematic structural diagram of a spring piece according to a preferred embodiment of the utility model.

[0018] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0019] Figure 5 for Figure 2 Enlarged view of point B in the middle. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] like Figure 1-5 As shown, this embodiment provides an electromyography needle tip bevel positioning device, including a needle body fixing plate 2 for fixing multiple needle bodies 4, a bevel fixing plate 1 for fixing the needle body bevel 401 and a spring piece fixing plate 3 for fixing the spring piece 5.

[0022] The needle fixing plate 2 is provided with a plurality of needle body slots 201 evenly spaced along the longitudinal direction. The needle body slots 201 are arranged transversely and parallel to each other. A needle body 4 is embedded and fixed in each needle body slot 201, and the inclined surface 401 of the needle tip on the needle body 4 is always kept facing upward.

[0023] Each needle body slot 201 is U-shaped, and the outer periphery of each needle body 4 protrudes from the corresponding needle body slot 201 by 0.1-0.2 mm. The slot width of each needle body slot 201 is 0.01-0.02 mm greater than the diameter of the needle body 4.

[0024] The inclined plane fixing plate 1 is fixed to the end of the needle body fixing plate 2 close to the needle tip, that is, the front end of the needle body fixing plate 2 , and the inclined plane positioning plate 1 is in conflict with the inclined plane 401 of the needle tip.

[0025] Symmetrical L-shaped fixing seats 202 are fixed on the left and right sides of the end surface of the needle body fixing plate 2 close to the needle tip. The left end of the bevel fixing plate 1 is placed in the L-shaped fixing seat 202 on the left side and fixed to the left end of the bevel fixing plate 1 by a bolt 203 passing through the top, and the right end is placed in the L-shaped fixing seat on the right side and fixed to the right end of the bevel fixing plate by a bolt passing through the top. The bevel fixing plate 1 can adjust the front and rear positions on the needle body fixing plate 2 to adapt to different needle body length models. In addition, the rear end of the L-shaped fixing seat 202 can be sealed so that the bevel fixing plate 1 will not pass over the rear end of the L-shaped fixing seat 202 when adjusting the front and rear positions on the needle body fixing plate 2.

[0026] The spring clip fixing plate 3 is fixed to the end of the needle body fixing plate 2 away from the needle tip, i.e., the rear end of the needle body fixing plate 2. Spring clip slot holes 301 corresponding to the needle body slot holes 201 are evenly spaced along the longitudinal direction on the spring clip fixing plate 3. The axis of each needle body slot hole 201 corresponds to the axis of the corresponding spring clip slot hole 301 to ensure the concentricity of their connection. The spring clip slot holes 301 are arranged horizontally and parallel to each other. A spring clip 5 is embedded and fixed in each spring clip slot hole 301. The spring clip 5 matches the needle body 4 one by one. The spring clip 5 is provided with a spring clip welding portion 501 and a spring clip slot portion 502. When the spring clip 5 is fixed on the spring clip fixing plate 3, the spring clip slot portion 502 always remains upward, so that the inclined surface 401 of the needle tip is in the same direction as the spring clip slot portion 502 so that the direction of the inclined surface 401 of the needle tip can be easily identified according to the direction of the spring clip slot portion 502. The spring sheet welding portion 501 is used for welding, so that the needle body 4 and the corresponding spring sheet 5 are welded.

[0027] A positioning seat 204 is fixed on the left and right ends of the end of the needle body fixing plate 2 away from the needle tip, and the positioning seat 204 extends out of the needle body fixing plate 2. The spring clip fixing plate 3 is connected to the needle body fixing plate 2. The spring clip fixing plate 3 is limited between the two positioning seats 204, and the top of the spring clip fixing plate 3 is flush with the top of the needle body fixing plate 2, so that the needle body 4 passes through the center of the corresponding spring clip 5 and is on the same axis with it.

[0028] Moreover, a needle core stopper 302 is fixed at the rear end of each spring piece slot 301, and when the spring piece fixing plate 3 is connected to the needle body fixing plate 2, the needle body 4 passes through the center of the corresponding spring piece 5 and is coaxial with it, and the end of the needle core 402 on the needle body 4 just contacts the corresponding needle core stopper 302. The setting of the needle core stopper 302 can not only position the needle body to prevent it from moving forward and backward, but also detect whether the needle tip bevel has been positioned and identified.

[0029] In this embodiment, the needle body slots 201 and the spring piece slots 301 are evenly arranged and have the same number, and can be set to multiple numbers to improve production efficiency, and generally 8 to 30 numbers can be set.

[0030] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A device for positioning the bevel of an electromyography needle tip, characterized in that: It includes a needle body fixing plate for fixing multiple needle bodies. When each needle body is fixed on the needle body fixing plate, the inclined surface of the needle tip of the needle body always remains upward. An inclined fixing plate is fixed on the end surface of the needle body fixing plate close to the needle tip, and the inclined fixing plate is in conflict with the inclined surface of the needle tip. The end of the needle body fixing plate away from the needle tip is provided with a spring clip fixing plate for fixing spring clips that match the needle bodies one by one. The spring clip is provided with a spring clip welding portion and a spring clip slot portion. When the spring clip is fixed on the spring clip fixing plate, the spring clip slot portion always remains upward, so that the inclined surface of the needle tip and the spring clip slot portion are in the same direction to identify the inclined surface direction. The spring clip fixing plate is docked with the needle body fixing plate, so that the needle body passes through the center of the corresponding spring clip and is on the same axis with it.

2. The electromyography needle tip bevel positioning device according to claim 1, characterized in that: The needle body fixing plate is provided with a plurality of needle body slots spaced apart in the longitudinal direction, the needle body slots are arranged transversely and parallel to each other, a needle body is embedded and fixed in each of the needle body slots, and the inclined surface of the needle tip is always kept facing upwards; Symmetrical L-shaped fixing seats are fixed on the left and right sides of the end surface of the needle body fixing plate close to the needle tip, the left end of the inclined surface fixing plate is placed in the L-shaped fixing seat on the left side and fixed to the left end of the inclined surface fixing plate by bolts passing through the top, and the right end is placed in the L-shaped fixing seat on the right side and fixed to the right end of the inclined surface fixing plate by bolts passing through the top; The spring-piece fixing plate is provided with spring-piece slots corresponding to the needle body slots at intervals along the longitudinal direction, and the axis of each needle body slot corresponds to the axis of the corresponding spring-piece slot. The spring-piece slots are arranged transversely and parallel to each other, and a spring piece is embedded and fixed in each spring piece slot, and the inclined surface of the spring piece slot portion is always kept upward; The left and right ends of the needle body fixing plate away from the needle tip are fixed with positioning seats, the positioning seats extend out of the needle body fixing plate, the spring sheet fixing plate is connected to the needle body fixing plate, the spring sheet fixing plate is limited between the two positioning seats, and the top of the spring sheet fixing plate is flush with the top of the needle body fixing plate.

3. The electromyography needle tip bevel positioning device according to claim 2, characterized in that: A needle core stopper is fixed at the rear end of each spring sheet slot. When the spring sheet fixing plate is connected to the needle body fixing plate, the needle body passes through the center of the corresponding spring sheet and is on the same axis with it, and the needle core on the needle body just contacts the corresponding needle core stopper.

4. The electromyography needle tip bevel positioning device according to claim 2, characterized in that: The needle body fixing plate is provided with a plurality of needle body slots evenly spaced along the longitudinal direction.

5. The electromyography needle tip bevel positioning device according to claim 2, characterized in that: The spring piece fixing plate is provided with spring piece slot holes which are evenly spaced along the longitudinal direction and correspond to the needle body slot holes one by one.

6. The electromyography needle tip bevel positioning device according to claim 2, characterized in that: Each of the needle body slots is U-shaped.

7. The device for positioning the bevel of the electromyography needle tip according to claim 6, characterized in that: The outer periphery of each needle body protrudes from the corresponding needle body slot by 0.1-0.2 mm, and the slot width of each needle body slot is 0.01-0.02 mm greater than the diameter of the needle body.

8. The electromyography needle tip bevel positioning device according to claim 2, characterized in that: The rear end of each L-shaped fixing seat is sealed.

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