Nerve block puncture needle

Abstract

The utility model relates to the technical field of medical instruments, in particular to a nerve block puncture needle which comprises a puncture needle body, the middle position of the top of the puncture needle body is communicated with a connecting pipe body, a combined flaring is sleeved outside the connecting pipe body, the bottom of the combined flaring is fixedly connected with a threaded lantern ring, and the threaded lantern ring is fixedly connected with the connecting pipe body. According to the nerve block puncture needle, through the arrangement of the combined flaring, the threaded lantern ring, the outer protruding ring, the anti-skid ring groove and the rubber block, the nerve block puncture needle can conveniently conduct displacement adjustment on the auxiliary flaring structure before an injector is connected into the connecting pipe body according to the medical scheme requirement, and therefore the nerve block puncture needle is convenient to use. The puncture needle is provided with the expansion tube opening, so that an injector can be conveniently and quickly connected into the puncture needle for use under the auxiliary action of the expansion tube opening subsequently, and the arrangement can overcome the inconvenience caused by small caliber when the injector is connected into the puncture needle to a certain extent, and is also beneficial to realizing one-time in-place connection of the injector.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a nerve block puncture needle. Background Technique

[0002] When performing nerve block treatment on a patient, a nerve block puncture needle is a medical device used for nerve block surgery. It is mainly applicable to nerve block surgery, can improve the success rate of the surgery and the safety of the patient. At the same time, the puncture needle usually consists of a puncture needle body and a connecting tube;

[0003] The puncture needle body is the main part, with a sharp cutting edge and an appropriate length. The connecting tube is used to connect the puncture needle and other instruments, such as a syringe, etc.;

[0004] In the prior art, when using a nerve block puncture needle to treat a patient and inserting this instrument into the patient's body in advance, it is generally necessary to connect a syringe through a connecting tube to facilitate subsequent liquid extraction or injection operations. However, considering that the nozzle diameter of the connecting tube of most puncture needles is set to be relatively small, this setting often leads to problems such as the inability to connect properly in one attempt and the need for multiple connections during the actual connection of the syringe. Furthermore, it is not conducive to the quick connection of the puncture needle and the syringe for coordinated use. Therefore, a nerve block puncture needle is proposed for the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a nerve block puncture needle to solve the problem of inconvenient connection when the existing nerve block puncture needle is connected to a syringe as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A nerve block puncture needle includes a puncture needle body. A connecting tube body is connected to the middle position at the top of the puncture needle body. A combined flared opening is sleeved outside the connecting tube body. A threaded sleeve ring is fixedly connected to the bottom of the combined flared opening. An outer convex ring is sleeved outside the threaded sleeve ring. An anti-slip ring groove is formed on the outer surface of the outer convex ring. Rubber blocks are respectively arranged on both sides of the connecting tube body. Support columns are arranged on both sides at the top of the connecting tube body.

[0008] Preferably, a pointed needle end is arranged at the bottom of the puncture needle body, and a scale line is arranged on the outer surface of the pointed needle end.

[0009] Preferably, a connecting nozzle is formed inside the connecting tube body. An injection socket body is arranged directly above the connecting tube body. A syringe body is arranged above the injection socket body. The inner end of the connecting nozzle and the outer end of the injection socket body are adapted in size.

[0010] Preferably, the supporting columns are symmetrically arranged along the vertical central axis of the connecting pipe body, and the supporting columns and the combined flaring are adjacent to each other in the vertical direction.

[0011] Preferably, an external thread structure threadedly connected to the threaded collar is provided on the outside of the connecting pipe body. A clamping groove for clamping and connecting with the rubber block is formed inside the threaded collar. The outer shape of the rubber block is arranged in a hemispherical structure. The combined flaring is arranged to gradually recess from the edge position towards the center. The inner end of the combined flaring is arranged to match the shape of the lower part of the syringe body.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, through the arranged combined flaring, threaded collar, convex ring, anti-slip ring groove and rubber block, it is convenient for the nerve block puncture needle to displace and adjust the auxiliary flaring structure composed of the combined flaring, threaded collar, convex ring, anti-slip ring groove and rubber block before connecting the syringe to the connecting pipe body according to the requirements of the medical plan. So that subsequently, with the assistance of the expanded pipe orifice, the syringe can be conveniently and quickly connected to the puncture needle for use. Different from the previous operation method of directly connecting the syringe, the guiding and auxiliary use of the auxiliary flaring structure can, to a certain extent, overcome the inconvenience caused by the relatively small diameter when connecting the syringe, and at the same time, it is also beneficial for the syringe to be connected in place at one time, reducing the number of connection operations that need to be carried out multiple times and accelerating the progress of the combined use of the syringe and the puncture needle. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the upward movement structure of the combined flaring of the present utility model;

[0016] Figure 3 It is a schematic diagram of the semi-sectioned structure of the combined flaring of the present utility model.

[0017] In the figure: 1, puncture needle body; 2, connecting pipe body; 3, combined flaring; 4, threaded collar; 5, convex ring; 6, anti-slip ring groove; 7, rubber block; 8, supporting column; 9, adapter orifice; 10, injection socket body; 11, syringe body; 12, tip needle end; 13, scale line. Detailed Embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-3 , the present utility model provides a technical solution:

[0020] A nerve block puncture needle includes a puncture needle body 1. A connecting pipe body 2 is connected to the middle position at the top of the puncture needle body 1. A combined flaring 3 is sleeved outside the connecting pipe body 2. A threaded collar 4 is fixedly connected to the bottom of the combined flaring 3. An outer convex ring 5 is sleeved outside the threaded collar 4. An anti-slip ring groove 6 is formed on the outer surface of the outer convex ring 5. Rubber blocks 7 are respectively arranged on both sides of the connecting pipe body 2. Support columns 8 are arranged on both sides at the top of the connecting pipe body 2.

[0021] As Figure 1 shown, a pointed needle end 12 is arranged at the bottom of the puncture needle body 1. Scale lines 13 are arranged on the outer surface of the pointed needle end 12. The setting with scales on the pointed needle end 12 can facilitate medical staff to observe and control the insertion depth of the puncture needle.

[0022] As Figure 1 and Figure 2 shown, a transfer pipe opening 9 is formed inside the connecting pipe body 2. An injection socket body 10 is arranged directly above the connecting pipe body 2. A syringe body 11 is arranged above the injection socket body 10. The inner end of the transfer pipe opening 9 and the outer end of the injection socket body 10 are set to be dimensionally adapted. With this dimensionally adapted setting, the connection between the connecting pipe body 2 and the injection socket body 10 will be more fitting and tight.

[0023] As Figure 1 , Figure 2 and Figure 3As shown, the supporting columns 8 are symmetrically arranged along the vertical central axis of the connecting pipe body 2. The supporting columns 8 and the combined flaring 3 are adjacent to each other vertically. When the auxiliary flaring structure is not adjusted, a group of supporting columns 8 mainly play a role in supporting the auxiliary flaring structure. An external thread structure that is threadedly connected to the threaded collar 4 is provided on the outside of the connecting pipe body 2. A clamping groove that is snap-connected to the rubber block 7 is provided inside the threaded collar 4. The outer shape of the rubber block 7 is arranged in a hemispherical structure. The combined flaring 3 is arranged to gradually recess from the edge position towards the center. The inner end of the combined flaring 3 is arranged to match the shape of the lower part of the syringe body 11. When the auxiliary flaring structure is adjusted in place, the rubber block 7 will fit into the clamping groove reserved inside the threaded collar 4 to limit the position of the auxiliary flaring structure after the adjustment operation is completed.

[0024] Working process: When it is necessary to use this nerve block puncture needle to perform nerve block treatment on a patient, as the medical staff tilt at 15 - 30 degrees, the puncture needle is inserted into the patient's body. First, the plug blocking the connecting pipe body 2 is removed, and after the needle core penetrating the inner part of the tip needle end 12 is withdrawn, after the combined flaring 3 is screwed and adjusted in place, under the auxiliary expansion effect of the combined flaring 3, in a convenient insertion manner, the injection socket body 10 can be quickly inserted into the inside of the adapter nozzle 9, so that the syringe body 11 and the puncture needle body 1 are quickly connected, so as to perform corresponding operations such as liquid extraction or drug injection according to the treatment plan subsequently. Before specifically connecting the syringe body 11, under the anti-slip auxiliary effect of the anti-slip ring groove 6, the threaded collar 4 can be screwed clockwise through the outer convex ring 5, so that while it can drive the combined flaring 3 to shift upward from bottom to top, after the threaded collar 4 moves in place, it can use the clamping connection between the groove opened inside itself and the rubber block 7 to limit the position. At this time, the combined flaring 3 will be adjusted to the state outside the first end of the connecting pipe body 2, so as to be used as an auxiliary flaring structure to enable the syringe to be conveniently and quickly inserted into the puncture needle.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nerve block puncture needle, comprising a puncture needle body (1), characterized in that: The middle position of the top of the puncture needle body (1) is connected to a connecting tube body (2), the outer part of the connecting tube body (2) is provided with a combined flare (3), the bottom of the combined flare (3) is fixedly connected with a threaded collar (4), the outer part of the threaded collar (4) is provided with an outer convex ring (5), the outer surface of the outer convex ring (5) is provided with an anti-slip ring groove (6), rubber blocks (7) are respectively provided at both sides of the connecting tube body (2), and supporting columns (8) are provided at both sides of the top of the connecting tube body (2).

2. A nerve block puncture needle according to claim 1, characterized in that: A sharp needle end (12) is provided at the bottom of the puncture needle body (1), and a scale line (13) is provided on the outer surface of the sharp needle end (12).

3. A nerve block puncture needle according to claim 1, characterized in that: An adapter tube port (9) is provided on the inner side of the connecting tube body (2), an injection socket body (10) is provided directly above the connecting tube body (2), a syringe body (11) is provided above the injection socket body (10), and the inner end of the adapter tube port (9) and the outer end of the injection socket body (10) are adapted in size.

4. A nerve block puncture needle according to claim 1, characterized in that: The support column (8) is symmetrically arranged along the vertical center axis of the connecting pipe body (2), and the support column (8) and the combined expansion opening (3) are adjacent to each other in upper and lower positions.

5. A nerve block puncture needle according to claim 1, characterized in that: The outside of the connecting tube body (2) is provided with an external thread structure which is threadedly connected to the threaded collar (4); the inside of the threaded collar (4) is provided with a slot which is snap-fitted and connected to the rubber block (7); the outer shape of the rubber block (7) is a hemispherical structure; the combined flare (3) is gradually recessed from the edge position to the center; the inner end of the combined flare (3) is arranged to match the shape of the lower part of the syringe body (11).

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