Nerve block needle
By introducing a adjusting screw and limiting block system into the nerve block needle, ensuring the accuracy of the puncture position and depth, the problem of uncertain puncture force in the prior art is solved, and a safer and more flexible nerve block operation is achieved.
Patent Information
- Application Number
- CN202420711401.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-08
AI Technical Summary
The existing nerve block needles are difficult to ensure the optimal puncture strength during the puncture process, resulting in uncertainty in the depth of the puncture, which may cause nerve damage or secondary damage, and the operation is not accurate enough, affecting the effective injection of the drug.
A nerve block needle including a built-in mechanism, an outer penetration mechanism and an outer connection mechanism is designed to ensure the accuracy and depth of the puncture position by adjusting the screw and limit block system, combining the wrapping head and push block to improve operational flexibility and safety sex.
Effectively prevent excessive puncture damage, reduce patient pain, improve the accuracy and safety of drug injections, and provide flexible transfer and use methods when the operating space is limited.
Smart Images
Figure CN222285581U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nerve injection, in particular to a nerve blocking needle. Background Art
[0002] Continuous nerve block technology refers to the precise placement of a catheter near the target nerve, and the injection of local anesthetics through the catheter opening near the target nerve to achieve the purpose of anesthesia and pain treatment. The medical devices used in continuous nerve block technology face two conflicting issues: safety and precision. Safety mainly refers to the possibility that the puncture needle may accidentally pierce the target nerve during the operation and cause nerve damage. Precision requires that the catheter opening be as close to or even touch the target nerve as possible, which is conducive to the precise flow of drugs to the target nerve to exert its efficacy. Among them, the nerve block needle is a medical instrument designed using the principle of continuous nerve block technology.
[0003] For example, a nerve block needle disclosed in the authorization announcement number CN209032563U includes an injection part for performing skin-breaking injection at the patient's nerve position and a fixing part for fixing the injection part position, the injection part includes a skin-breaking needle and a drug-applying needle, the drug-applying needle is movably arranged in the skin-breaking needle, one end of the drug-applying needle is provided with a tough part, the top of the tough part is round and blunt, one side of the tough part is provided with a drug injection hole, and one end of the skin-breaking needle is provided with at least two beveled surfaces, and the at least two beveled surfaces cooperate to form a sharp part. The utility model has the following beneficial effects: this nerve block needle can avoid damaging nerves, and at the same time can reduce the difficulty of puncture and reduce the pain of patients.
[0004] Most of the currently available blocking needles are manually punctured, and the puncture force cannot be guaranteed to reach the optimal level during puncture, so the puncture depth will be affected. If the puncture depth is too deep, it will cause secondary damage to the patient. Utility Model Content
[0005] The purpose of the utility model is to provide a nerve blocking needle to solve the problems raised in the above background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A nerve blocking needle comprises an internal mechanism, an external penetration mechanism and an external connection mechanism, wherein the external connection mechanism is located at one side of the internal mechanism, the external penetration mechanism is located at the outside of the internal mechanism, and the external connection mechanism is located at the top of the external penetration mechanism. The internal mechanism comprises an internal needle, a first wrapping head is fixedly mounted on the top of the internal needle, a pulling block is fixedly mounted on the top of the first wrapping head, and a first needle tip is fixedly mounted on the bottom of the internal needle.
[0008] Preferably, the external connection mechanism comprises an external tube, a first limit block is fixedly mounted on the front end of the external tube, a connector is fixedly mounted on the bottom end of the first limit block, and a second limit block is fixedly mounted on the rear end of the external tube.
[0009] Preferably, the external penetration mechanism comprises a vision plate, an adjusting screw is movably mounted on one end of the vision plate, a slide groove is provided in the middle of the vision plate, and an external needle is movably mounted in the slide groove.
[0010] Preferably, a sight line is fixedly installed on the outside of the external needle, a second needle tip is fixedly installed on the bottom end of the external needle, and a needle groove is provided on the needle tip.
[0011] Preferably, a second wrapping head is fixedly mounted on the top of the external needle, a limiting plate is fixedly mounted on the top of the second wrapping head, and a pushing block is fixedly mounted on the top of the limiting plate.
[0012] Preferably, a connecting tube is fixedly installed on the top of the pushing and pulling block, and a first wrapping head and a connecting head are movably installed in the connecting tube.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. This kind of nerve block needle can slide in the slide groove on the visual position plate and slide to the visual position line by rotating the adjustment screw, so as to determine the puncture position and limit the puncture, so as to prevent the patient from being injured due to excessive puncture.
[0015] 2. This kind of nerve blocking needle has a first wrapped head movably installed in a connecting tube, so that the blocking needle can be directly used in conjunction with a syringe. A connecting head is movably installed in the connecting tube, so that when the operating space at the puncture position is small, it can be switched for use through an external tube, and the operation and use are more flexible. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the connection between the built-in mechanism and the external mechanism of the utility model;
[0018] Figure 3 It is a schematic diagram of the connection between the external connection mechanism and the external penetration mechanism of the utility model;
[0019] Figure 4 For this utility model Figure 1 A magnified schematic diagram of center A.
[0020] In the figure: 101, built-in mechanism; 102, external penetration mechanism; 103, external mechanism; 104, built-in needle; 105, first wrapping head; 106, pulling block; 201, first needle tip; 202, external tube; 203, first limit block; 204, connector; 205, second limit block; 206, sight plate; 301, adjusting screw; 302, slide groove; 303, external needle; 304, sight line; 305, second needle tip; 306, needle groove; 401, second wrapping head; 402, limit plate; 403, push block; 404, connecting tube. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:
[0023] A nerve blocking needle comprises a built-in mechanism 101, an external penetration mechanism 102 and an external mechanism 103, wherein the external mechanism 103 is located at one side of the built-in mechanism 101, the external penetration mechanism 102 is located at the outside of the built-in mechanism 101, and the external mechanism 103 is located at the top of the external penetration mechanism 102. The built-in mechanism 101 comprises a built-in needle 104, a first wrapping head 105 is fixedly mounted on the top of the built-in needle 104, a pulling block 106 is fixedly mounted on the top of the first wrapping head 105, and a first needle tip 201 is fixedly mounted on the bottom of the built-in needle 104.
[0024] Through the above scheme, the built-in needle and the needle tip at the bottom can ensure that there is no excessive obstruction during puncture, reduce the patient's tingling sensation, fix the built-in needle and the pulling block through the first wrapping head, and at the same time, the external needle and the built-in needle can be connected and clamped through the first wrapping head. The blocking needle can be used in conjunction with the sight plate and the sight line to determine the puncture position and limit the puncture, prevent the puncture from being too deep and causing damage to the patient's body. At the same time, the blocking needle can be used directly in conjunction with the syringe, and can also be transferred and used through an external tube, which is more flexible in operation.
[0025] In this embodiment, preferably, the external mechanism 103 includes an external tube 202, a first limit block 203 is fixedly installed on the front end of the external tube 202, a connector 204 is fixedly installed on the bottom end of the first limit block 203, and a second limit block 205 is fixedly installed on the rear end of the external tube 202.
[0026] Through the above scheme, when the operating space at the puncture position is small and it is inconvenient to inject directly through the external tube, a transfer injection can be performed, and the first limit block can be used to limit the external tube and the connecting tube when they are connected and installed, and the second limit block can be used to limit the syringe when it is installed.
[0027] In this embodiment, preferably, the external penetration mechanism 102 includes a visual position plate 206 , an adjusting screw 301 is movably installed at one end of the visual position plate 206 , a slide groove 302 is opened in the middle of the visual position plate 206 , and an external needle 303 is movably installed in the slide groove 302 .
[0028] According to the above scheme, the external needle can slide in the slide groove on the sight plate and slide to the sight line by rotating the adjusting screw, so as to determine the puncture position and limit the puncture, so as to prevent the patient from being injured due to excessive puncture.
[0029] In this embodiment, preferably, a visual line 304 is fixedly installed on the outer side of the external needle 303, and a second needle tip 305 is fixedly installed on the bottom end of the external needle 303, and a needle groove 306 is opened on the needle tip.
[0030] Through the above scheme, the puncture depth can be determined in advance through the visual line, and a second needle tip is fixedly installed at the bottom of the external needle, and a needle groove is opened on the needle tip, so that the external needle can be quickly punctured through the second needle tip, reducing obstacles and reducing the patient's pain. The medicine can be injected into the human body through the needle groove.
[0031] In this embodiment, preferably, a second wrapping head 401 is fixedly installed on the top of the external needle 303 , a limiting plate 402 is fixedly installed on the top of the second wrapping head 401 , and a push-pull block 403 is fixedly installed on the top of the limiting plate 402 .
[0032] Through the above scheme, the external needle and the push-pull block can be fixed by the second wrapping head, and the finger of the user can be limited and supported by the limiting plate when the user performs puncture through the push-pull block, thereby facilitating the user to exert force.
[0033] In this embodiment, preferably, a connecting tube 404 is fixedly installed on the top of the pushing block 403, and the first wrapping head 105 and the connecting head 204 are movably installed in the connecting tube 404.
[0034] Through the above scheme, the first wrapping head and the connecting head are movably installed in the connecting tube, so that the blocking needle can be used directly with the syringe, and can also be used through an external tube.
[0035] When a nerve block needle of this embodiment is used, the user rotates the adjusting screw 301 to make the external needle 303 slide in the slide groove 302 on the visual position plate 206 and slide to the visual position line 304. Then the user pushes the external needle 303 into the patient's body through the push-pull block 403, and pushes the external needle 303 into place according to the position of the limit plate 402. When the operating space at the puncture position is small and it is inconvenient to inject directly, the internal needle 104 is pulled out by pulling the pull-pull block 106, and the connector 204 is inserted into the connecting tube 404 after being pulled out, so that the connecting tube 404 and the external needle 303 are connected. 03, and then install the syringe filled with medicine at the bottom of the second limit block 205, and inject the medicine by pushing the syringe. After the injection is completed, pull out the connector 204 from the connector 204, and after pulling out, drive the internal needle 104 through the pulling block 106 to push it into the external needle 303, so that the first wrapped head 105 is stuck in the connecting tube 404, and then pull out the external needle 303 through the pushing block 403. After pulling out, the overall injection work is completed. When the operating space of the puncture position is large, the syringe can be directly plugged in and out of the connecting tube 404 to complete the injection.
[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A nerve block needle, characterized in that: The invention comprises a built-in mechanism (101), an external penetration mechanism (102) and an external connection mechanism (103), wherein the external connection mechanism (103) is located at one side of the built-in mechanism (101), the external penetration mechanism (102) is located at the outside of the built-in mechanism (101), and the external connection mechanism (103) is located at the top of the external penetration mechanism (102). The built-in mechanism (101) comprises a built-in needle (104), a first wrapping head (105) is fixedly mounted on the top of the built-in needle (104), a pulling block (106) is fixedly mounted on the top of the first wrapping head (105), a first needle tip (201) is fixedly mounted on the bottom of the built-in needle (104), and the external connection mechanism (103) comprises an external tube (202), and the external tube ( 202) is fixedly installed with a first limit block (203) at the front end, a connector (204) is fixedly installed at the bottom end of the first limit block (203), a second limit block (205) is fixedly installed at the rear end of the external tube (202), the external penetration mechanism (102) comprises a visual position plate (206), an adjusting screw (301) is movably installed at one end of the visual position plate (206), a slide groove (302) is provided in the middle of the visual position plate (206), an external needle (303) is movably installed in the slide groove (302), a visual position line (304) is fixedly installed on the outside of the external needle (303), a second needle tip (305) is fixedly installed at the bottom end of the external needle (303), and a needle groove (306) is provided on the needle tip.
2. A nerve block needle according to claim 1, characterized in that: A second wrapping head (401) is fixedly mounted on the top of the external needle (303), a limiting plate (402) is fixedly mounted on the top of the second wrapping head (401), and a pushing block (403) is fixedly mounted on the top of the limiting plate (402).
3. A nerve block needle according to claim 2, characterized in that: A connecting pipe (404) is fixedly installed on the top of the pushing and pulling block (403), and a first wrapping head (105) and a connecting head (204) are movably installed in the connecting pipe (404).