A new nerve block needle

Abstract

The utility model relates to nerve block needle technical field, concretely relates to a novel nerve block needle, including the connecting piece of connecting injection pipe, the bottom of connecting piece is provided with fixed block, the middle position of fixed block is provided with needle tube, the lower part of fixed block is provided with stabilizing block, stabilizing block slidingly arranged in the upper portion of needle tube, the lateral wall of needle tube is provided with scale line, improved the accuracy and security of operation, reduced the dependence on the doctor's operation level.

Description

Technical Field

[0001] This utility model relates to the field of nerve block needle technology, specifically to a novel nerve block needle. Background Technology

[0002] In the medical field, there are many scenarios that require the application of puncture to puncture human tissues, such as intravenous infusion, peripheral nerve block, soft tissue puncture biopsy, spinal canal puncture, etc. Nerve block is an injection that blocks the transmission of nerve function and belongs to the category of nerve block injections. This medical technique is mainly used to break the vicious cycle of pain and improve blood circulation, and it is commonly used in clinical practice.

[0003] Nerve block injections typically involve injecting anesthetic drugs around nerve trunks, plexuses, or ganglia to block the connection between the nerves and the pain receptors in the brain, thus anesthetizing the affected area and paralyzing the nerve. Nerve block injections not only block sensory nerves but also relieve muscle spasms caused by pain and improve the local vicious cycle. For some patients with diffuse congestion and edema, nerve block injections can also reduce edema and promote inflammation absorption. However, current nerve block injection techniques rely heavily on the doctor's experience to determine the insertion depth, and the injection depth can change during administration because the needle is not fixed in place, requiring a high level of skill from the doctor. Therefore, this proposed improvement aims to address this issue. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies where the insertion depth of nerve block needles is difficult to determine and easy to misoperate during drug administration, and to provide a new type of nerve block needle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel nerve block needle, comprising a connector for connecting an injection tube, a fixing block at the bottom of the connector, a needle tube at the middle position of the fixing block, a stabilizing block at the lower part of the fixing block, the stabilizing block being slidably disposed on the upper part of the needle tube, and graduation lines on the side wall of the needle tube.

[0006] Furthermore, the stabilizer block is provided with a backflow prevention device, which includes a backflow prevention ring that abuts against the outer wall of the needle tube.

[0007] Furthermore, the bottom of the check ring is annular and connected to the stabilizing block, and the upper part of the check ring is provided with multiple check teeth, with a gap between the upper part of the check teeth and the inner wall of the stabilizing block.

[0008] Furthermore, the top of the check tooth abuts against the outer wall of the syringe, and a gap is provided between the bottom of the check tooth and the outer wall of the syringe.

[0009] Furthermore, the needle head of the needle tube is conical, and multiple through holes are provided on the upper part of the needle head of the needle tube, with the scale line located above the through holes.

[0010] The beneficial effects of this utility model embodiment are as follows: The needle tube is carefully marked with graduation lines on its side wall, allowing doctors to clearly read the depth of needle insertion into the tissue, thereby precisely controlling the insertion depth and avoiding affecting the treatment effect due to excessive or shallow insertion. This greatly improves the accuracy and safety of the operation. During use, when the needle is inserted to the designated depth, the stabilizing block slides downwards to contact the patient's skin. This ensures that the stabilizing block firmly fixes the needle after insertion, preventing it from moving due to external forces during drug administration, thus ensuring the stability of the drug administration depth and reducing the skill requirements for doctors. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an enlarged structural diagram of point A in this utility model; Figure 3 This is a schematic diagram of the internal structure of the stabilizer block of this utility model; In the diagram: 1. Connector; 2. Fixing block; 3. Stabilizing block; 301. Check tooth; 4. Needle tube; 401. Through hole; 5. Scale line. Detailed Implementation

[0012] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely for explaining the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0013] See Figures 1 to 3This utility model discloses a novel nerve block needle, mainly composed of a connector 1 connecting the injection tube, a fixing block 2, a stabilizing block 3, and a needle tube 4. The connector 1, serving as the connection hub between the entire device and the injection tube, is located at the top, with the fixing block 2 connected to its bottom. The fixing block 2 provides support and positioning in the entire structure, and its sides are provided with anti-slip textures for easy handling. The needle tube 4 is located in the middle of the fixing block 2, passing through the fixing block 2 and communicating with the connector 1, providing a channel for subsequent puncture and drug administration. The stabilizing block 3 is slidably mounted on the lower part of the fixing block 2, slidingly fitted onto the upper part of the needle tube 4, allowing the stabilizing block 3 to move flexibly downwards along the needle tube 4 to adapt to different usage needs. The stabilizing block 3 contains a check valve, which includes a check ring with its bottom facing outwards. The ring structure is tightly connected to the stabilizing block 3 to ensure its stability. Multiple check teeth 301 are evenly arranged on the upper part of the check ring. These check teeth 301 are designed with a certain gap between their upper part and the inner wall of the stabilizing block 3, providing space for the needle 4 to move in a specific direction. The top of the check teeth 301 is in close contact with the outer wall of the needle 4, forming effective frictional resistance and preventing the needle 4 from moving in the opposite direction. Simultaneously, a gap is also left between the bottom of the check teeth 301 and the outer wall of the needle 4, allowing for intuitive insertion to the designated depth. The stabilizing block 3 is then slid downwards to contact the patient's skin, ensuring that the stabilizing block 3 firmly fixes the needle 4 after insertion to the designated depth, preventing it from moving due to external forces during drug administration. This ensures the stability of the drug administration depth and reduces the skill requirements for the doctor.

[0014] To facilitate accurate measurement of the needle insertion depth by doctors, graduation lines 5 are carefully designed on the side wall of the needle 4. These graduation lines are printed or etched to reduce frictional resistance. During actual operation, doctors can clearly read the insertion depth of the needle 4 into the tissue based on the graduation lines, thereby precisely controlling the insertion depth and avoiding the impact on treatment efficacy due to excessive or shallow insertion. This greatly improves the accuracy and safety of the operation. To optimize drug delivery, six through holes 401 are provided at the needle tip of the needle 4. The through holes 401 are located at the upper part of the needle tip and are spirally arranged. The needle tip is conical and does not have an opening in the middle to reduce the risk of blockage. During use, the drug can diffuse more evenly into the surrounding tissue through the through holes 401, improving drug utilization and treatment efficacy. At the same time, the graduation lines are located above the through holes 401. This layout facilitates doctors' observation of the insertion depth without affecting the normal flow of the drug.

[0015] In practical use, the doctor first connects the injection tube to connector 1, then holds the nerve block needle and slowly inserts the needle tube 4 into the human tissue according to the patient's condition and puncture site. During insertion, the doctor can observe the scale lines on the side wall of the needle tube 4 at any time to precisely control the insertion depth. When the needle tube 4 reaches the designated depth, the stabilizing block 3 slides down to the patient's skin and automatically fixes the needle tube 4 through the anti-reverse device to prevent it from moving. At this time, the doctor can slowly inject the medication through the injection tube. The medication diffuses evenly into the surrounding tissue through the through hole 401 at the needle tip, achieving precise drug delivery, improving the accuracy and safety of the operation, reducing the dependence on the doctor's skill level, and providing strong support for the widespread application of nerve block technology in clinical practice.

[0016] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0019] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A novel nerve block needle, comprising a connector (1) for connecting an injection tube, characterized in that: A fixing block (2) is provided at the bottom of the connector (1), a needle tube (4) is provided at the middle position of the fixing block (2), a stabilizing block (3) is provided at the lower part of the fixing block (2), the stabilizing block (3) is slidably provided at the upper part of the needle tube (4), and scale lines are provided on the side wall of the needle tube (4). The stabilizing block (3) is equipped with a check valve, which includes a check ring that abuts against the outer wall of the needle tube (4). The bottom of the check ring is annular and connected to the stabilizing block (3). The upper part of the check ring is provided with multiple check teeth (301). There is a gap between the upper part of the check teeth (301) and the inner wall of the stabilizing block (3). The top of the check tooth (301) abuts against the outer wall of the needle tube (4), and a gap is provided between the bottom of the check tooth (301) and the outer wall of the needle tube (4). There is a gap between the upper part of the check tooth (301) and the inner wall of the stabilizing block (3), and the top of the check tooth (301) is in close contact with the outer wall of the syringe (4).

2. The novel nerve block needle according to claim 1, characterized in that: The needle head of the needle tube (4) is conical, and multiple through holes (401) are provided on the upper part of the needle head of the needle tube (4). The scale line is located above the through holes (401).

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