A nerve stimulation needle
By incorporating a sharp anesthetic needle and button control within the neurostimulation needle, the problem of difficult puncture with existing neurostimulation needles is solved, enabling single-needle injection of anesthetic and precise puncture, reducing patient discomfort and tissue damage.
Patent Information
- Application Number
- CN202520602420.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Existing nerve stimulation needles are difficult to puncture thick or loose skin, requiring an assistant, which causes discomfort and pain to the patient. Furthermore, repeated punctures and injections of local anesthetic are required before needle insertion to create two needle marks.
Design a nerve stimulation needle with a built-in sharp anesthetic needle. The extension and retraction of the anesthetic needle are controlled by a button. The anesthetic is injected after puncture to reduce tissue damage. It is protected by an insulating layer and combined with a Y-shaped tail design to achieve precise puncture and drug delivery.
It achieves successful single-needle puncture, reduces patient discomfort, simplifies the operation, reduces needle marks, and improves puncture efficiency and comfort.
Smart Images
Figure CN224671944U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, specifically relating to a nerve stimulation needle. Background Technology
[0002] Currently used nerve stimulation needles generally have blunt tips to minimize nerve damage, but this makes them difficult to pierce the skin. For patients with thick or loose skin, especially those with needles longer than 5 cm, puncture is challenging, requiring an assistant and often taking a considerable amount of time, causing significant discomfort and pain for the patient. Furthermore, the need to inject local anesthetic with a fine needle tip before insertion often creates two puncture sites, essentially requiring repeated punctures, which is also inconvenient. Utility Model Content
[0003] The purpose of this invention is to provide a nerve stimulation needle to solve the problems existing in the background art.
[0004] To achieve the above objectives, this application employs the following technical solution:
[0005] A nerve stimulation needle includes a puncture needle and a mounting portion disposed at the tail end of the puncture needle. An anesthetic needle is disposed within the lumen of the puncture needle, the sharpness of the tip of the anesthetic needle being greater than the sharpness of the tip of the puncture needle.
[0006] Furthermore, a rubber cap is provided at the rear end of the mounting section, the front end of the anesthetic needle passes through the rubber cap, and the tail end of the anesthetic needle is connected to an anesthetic delivery tubing.
[0007] Furthermore, the tail end of the anesthetic needle is provided with a telescopic part, which is assembled on the mounting part and is slidably disposed relative to the mounting part.
[0008] Furthermore, the telescopic part includes a tailstock, a spring, and a button. The tailstock is fixedly connected to the tail end of the anesthetic needle, the spring is disposed between the tailstock and the button, and the tail end of the anesthetic needle is connected to an anesthetic delivery tubing.
[0009] Furthermore, after pressing the button, the tip of the anesthetic needle protrudes 1-2 mm from the tip of the puncture needle. After pressing the button again, the anesthetic needle retracts back into the lumen of the puncture needle, and the tip of the anesthetic needle is located at least 10 mm behind the tip of the puncture needle.
[0010] Furthermore, a drug delivery tubing is connected to the end of the puncture needle.
[0011] Furthermore, the tail end of the puncture needle is Y-shaped, with a drug delivery tubing connected to one side and a nerve stimulation electrode connected to the other side.
[0012] Furthermore, the button is slidably connected to the mounting part, allowing the button to slide between two positions within the mounting part.
[0013] Furthermore, a scale is provided on the outer surface of the button to display the length of the anesthetic needle extending from the puncture needle.
[0014] Furthermore, an insulating layer and / or an insulating sleeve are provided on the outer wall of the puncture needle. If an insulating sleeve is included, the upper end of the insulating sleeve is close to the lower end of the mounting portion.
[0015] The beneficial effects of this utility model are:
[0016] The nerve stimulation needle in this technical solution adds a thin cavity to the existing puncture needle, allowing a thin anesthetic needle to pass through, which facilitates puncture and reduces tissue damage caused by the existing nerve stimulation needle. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a nerve stimulation needle in its unused state.
[0018] Figure 2 A schematic diagram of the structure of a nerve stimulation needle in use.
[0019] Figure 3 This is a bottom view of the nerve stimulation needle of this utility model.
[0020] Figure 4 This is a schematic diagram of another embodiment of the nerve stimulation needle of this utility model.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Puncture needle; 2. Mounting part; 3. Anesthesia needle; 4. Tailstock; 5. Spring; 6. Button; 7. Anesthetic drug delivery tubing; 8. Drug delivery tubing; 9. Insulating sleeve; 10. Puncture needle; 11. Mounting part; 20. Anesthesia needle; 30. Insulating sleeve; 40. Drug delivery tubing; 50. Anesthetic drug delivery tubing; 60. Rubber cap. Detailed Implementation
[0023] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of this utility model, and should not be construed as limiting the technical solution of this utility model.
[0024] Example 1
[0025] like Figures 1 to 3As shown, this application provides a nerve stimulation needle, including a puncture needle 1 and an mounting part 2 disposed at the tail end of the puncture needle. In the technical solution of this application, the structure of the puncture needle 1 is the structure of the existing puncture needle, the main body is cylindrical, the overall structure of the mounting part is cylindrical, and the lower end of the mounting part 2 is fixedly connected to the tail end of the puncture needle 1. The above connection method is the conventional connection method of the currently used puncture needle, which can be obtained by those skilled in the art based on conventional knowledge.
[0026] An anesthetic needle 3 is provided in the inner cavity of the puncture needle. The anesthetic needle of this application also has a conventional needle head structure, and its outer diameter is smaller than the inner diameter of the puncture needle, so that the anesthetic needle can be inserted into the puncture needle and slide along the inner cavity of the puncture needle.
[0027] The tail end of the anesthetic needle 3 is provided with a telescopic part, which is assembled on the mounting part. The telescopic part includes a tail seat 4, a spring 5, and a button 6. The tail seat is fixedly connected to the tail end of the anesthetic needle. The spring is located between the tail seat and the button. The telescopic part is slidably disposed relative to the mounting part. Specifically, the tail seat 4 and the button 6 also slide relative to each other. The movement of the anesthetic needle is achieved by the spring 5 providing downward pressure and rebound force. The tail end of the anesthetic needle is connected to an anesthetic drug delivery tubing 7. The sharpness of the tip of the anesthetic needle is greater than that of the tip of the puncture needle.
[0028] In this application, the button is slidably connected to the mounting part, and the button can slide between two positions within the mounting part. The locking groove on the button 6 engages with the locking protrusion on the mounting part 2. When the button is pressed, the anesthetic needle moves downward under the push of the spring. The button in this application can also be set with different progress. Pressing the corresponding depth as needed will synchronously drive the anesthetic needle to extend out of the puncture needle by a set length.
[0029] In this application, if Figure 2 As shown, after pressing the button, the tip of the anesthetic needle protrudes 1-2 mm from the tip of the puncture needle. Pressing the button again retracts the anesthetic needle back into the lumen of the puncture needle, with the tip of the anesthetic needle positioned at least 10 mm behind the tip of the puncture needle. Otherwise, the anesthetic needle will interfere with the puncture. Figure 1 As shown.
[0030] In this application, the tail end of the puncture needle is connected to a drug delivery tubing 8.
[0031] In this application, the tail end of the puncture needle is Y-shaped, with a drug delivery tubing 8 connected to one side and a nerve stimulation electrode connected to the other side.
[0032] In this application, the button is slidably connected to the mounting part, and the button can slide between two or more positions within the mounting part.
[0033] In this application, a scale is provided on the outer surface of the button to display the length of the anesthetic needle extending from the puncture needle.
[0034] In this application, an insulating layer and / or an insulating sleeve 9 are provided on the outer wall of the puncture needle. If the insulating sleeve is included, the upper end of the insulating sleeve is close to the lower end of the mounting part.
[0035] Working principle:
[0036] This technical solution adds a narrow cavity to the original puncture needle, through which the sharp anesthetic needle core passes. A spring and button are added to the tail end of the needle, along with a depth indicator for the needle core. When puncture is needed, pressing the button causes the needle tip to protrude 1-2 mm from the puncture needle cavity, piercing the skin. A small amount of local anesthetic is injected. Pressing the button again retracts the needle tip at least 10 mm into the puncture needle cavity before continuing the puncture. At this point, only a blunt needle tip remains, minimizing tissue damage. After successful puncture, the appropriate volume of medication is injected through a soft tube connected to the tail end. The tail end of the needle can also be Y-shaped. The tail end of this puncture needle is also connected to a nerve stimulation electrode, which can be used to stimulate nerves and induce corresponding muscle contractions for precise puncture accuracy. It can also be used for radiofrequency ablation.
[0037] Example 2
[0038] like Figure 4 As shown, this application provides a nerve stimulation needle, including a puncture needle 10 and a mounting portion 11 disposed at the tail end of the puncture needle. A drug delivery tubing 40 is connected to the tail end of the puncture needle. In this embodiment, both the puncture needle and the mounting portion refer to Embodiment 1. Similarly, the structure of the puncture needle is that of an existing puncture needle, with the main body being cylindrical. The overall structure of the mounting portion is cylindrical, and the lower end of the mounting portion is fixedly connected to the tail end of the puncture needle. The above connection method is a conventional connection method for currently used puncture needles, which can be obtained by those skilled in the art based on conventional knowledge.
[0039] An anesthetic needle 20 is disposed within the inner cavity of the puncture needle. A rubber cap 60 is disposed at the rear end of the mounting portion. After the front end of the anesthetic needle passes through the rubber cap, the tip of the anesthetic needle is located within the inner cavity of the puncture needle. An anesthetic delivery tubing 50 is connected to the tail end of the anesthetic needle for connection to an anesthetic needle injector. The remaining structure of the puncture needle is the same as in Example 1.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the scope of the technical solution of this utility model.
Claims
1. A nerve stimulation needle, characterized in that, It includes a puncture needle and a mounting part disposed at the tail end of the puncture needle. An anesthetic needle is disposed in the inner cavity of the puncture needle, and the sharpness of the tip of the anesthetic needle is greater than that of the tip of the puncture needle. The tail end of the anesthetic needle is provided with a telescopic part, which is assembled on the mounting part and is slidably disposed relative to the mounting part; The telescopic part includes a tailstock, a spring, and a button. The tailstock is fixedly connected to the tail end of the anesthetic needle. The spring is disposed between the tailstock and the button. The tail end of the anesthetic needle is connected to an anesthetic delivery tubing. After pressing the button, the tip of the anesthetic needle protrudes 1-2mm from the tip of the puncture needle. After pressing the button again, the anesthetic needle retracts back into the lumen of the puncture needle, and the tip of the anesthetic needle is located at least 10mm behind the tip of the puncture needle.
2. The nerve stimulation needle according to claim 1, characterized in that, A rubber cap is provided at the rear end of the mounting section, the front end of the anesthetic needle passes through the rubber cap, and the tail end of the anesthetic needle is connected to an anesthetic delivery tubing.
3. The nerve stimulation needle according to claim 1, characterized in that, The end of the puncture needle is connected to a drug delivery tubing.
4. The nerve stimulation needle according to claim 3, characterized in that, The puncture needle has a Y-shaped tail end, with a drug delivery tube connected to one side and a nerve stimulation electrode connected to the other side.
5. The nerve stimulation needle according to claim 1, characterized in that, The button is slidably connected to the mounting part, allowing the button to slide between two positions within the mounting part.
6. The nerve stimulation needle according to claim 5, characterized in that, A scale is provided on the outer surface of the button to display the length of the anesthetic needle extending from the puncture needle.
7. The nerve stimulation needle according to claim 1, characterized in that, An insulating layer and / or an insulating sleeve are provided on the outer wall of the puncture needle. If an insulating sleeve is included, the upper end of the insulating sleeve is close to the lower end of the mounting part.