CN204428123U - A kind of new type nerve blockage puncture pin - Google Patents

Abstract

The utility model discloses a kind of new type nerve blockage puncture pin, comprise needle tubing (1), needle point (2), square needle stand (3) and built-in nook closing member (4), needle point (2) is in coniform, and needle point (2) outer wall is distributed with 6 side openings (5); Needle tubing (1) is provided with cuff (7), needle tubing (1) sidewall is provided with a logical gas/liquid pipe (8), cuff (7) communicates with logical gas/liquid pipe (8), cuff (7) is made up of at least two folliculus, the upper position corresponding with each folliculus of needle tubing (1) is provided with and passes gas/liquid hole (14), and folliculus communicates with biography gas/liquid hole (14); The end of needle tubing (1) is connected with PVC extension tube (10).This utility model is convenient to hold, passivity is tissue instead of sharp keen incision separately, reduces neural probability of stabbing cut-out in inserting needle process, and medicinal liquid can be made evenly to inject, puncture needle and surrounding tissue can also be made to fit tightly, be conducive to fixing needle body not easily transformed depth and angle.

Description

A new type of nerve block puncture needle

technical field

The utility model relates to the technical field of medical supplies, in particular to a novel nerve block puncture needle.

Background technique

Puncture injection technology is widely used clinically, but in denser muscle or tumor tissue, a single-hole puncture needle generally has a small injection range, high resistance, and uneven injection. When the puncture needle with a thick needle body is operated, the tissue will block the needle cavity, which will affect the injection and cause more pain to the patient.

Utility model content

In order to overcome the shortage of unsafe factors in the existing working environment of respiratory doctors, the utility model provides a novel nerve block puncture needle.

In order to achieve the above object, the utility model adopts the following technical solutions:

A new type of nerve block puncture needle, including a needle tube, a needle point, a square needle seat and a built-in needle core. The six sides formed by dividing, and the six side holes are alternately arranged at intervals; the needle tube and the square needle seat are integrally formed, and the square needle seat is provided with a square needle seat groove; the needle tube is provided with a cuff, and the side wall of the needle tube is provided with a The ventilation/liquid tube, the cuff communicates with the ventilation/liquid tube, and the tail of the ventilation/liquid tube is provided with a one-way valve; the new nerve block puncture needle also includes a square needle cap, and the bottom of the square needle cap is provided with a The needle cap protrusion matches the seat groove.

Further, the tip of the built-in needle core is conical and fits closely with the needle tip.

Further, the cuff is composed of at least two small sacs, and air/liquid holes are provided on the needle tube corresponding to each small sac, each air/liquid hole is independent of each other, and the small sac communicates with the air/liquid hole.

Further, it also includes a PVC extension tube, one end of the PVC extension tube communicates with the end of the needle tube, and the other end is provided with an interface connected to the syringe.

The diameter of the needle tube is 0.5 mm.

Further, the length of the needle tip is 5 mm.

Further, the length of the PVC extension pipe is 10cm.

Further, the front end of the cuff is 3 cm away from the needle tip, and the rear end is 2 cm away from the tail of the needle tube.

The new nerve block puncture needle of the utility model is easy to hold, bluntly separates the tissue instead of sharply cutting, reduces the possibility of nerve stabbing and cutting during the needle insertion process, and can make the medicine liquid evenly injected, and can also make the puncture needle and the surrounding The tissue fits closely, which is conducive to fixing the needle body and making it difficult to change the depth and angle.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail:

Fig. 1 is a structural schematic diagram of an embodiment of the nerve block puncture needle of the present invention.

Fig. 2 is a schematic structural view of the needle tip of the nerve block puncture needle of the present invention.

Fig. 3 is a structural schematic diagram of an embodiment of the nerve block puncture needle of the present invention.

Fig. 4 is a schematic structural view of the needle tube wall in the nerve block puncture needle of the present invention.

Fig. 5 is a schematic structural view of the cuff in the nerve block puncture needle of the present invention.

Fig. 6 is a schematic structural view of the cuff in the nerve block puncture needle of the present invention.

In the figure: 1, needle tube; 2, needle tip; 3, square needle seat; 4, built-in needle core; 5, side hole; 6, square needle seat groove; 7, cuff; 8, ventilation/liquid tube; 9, One-way valve; 10: PVC extension tube; 11: interface; 12: square needle cap; 13: raised needle cap; 14: air/liquid hole.

Detailed ways

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Example 1:

Fig. 1, Fig. 2 and Fig. 3 schematically show an embodiment of the new nerve block puncture needle of the present invention. As shown in Figure 1 and Figure 2, it includes a needle tube 1, a needle tip 2, a square needle base 3 and a built-in needle core 4, the needle tube 1 and the square needle base 3 are integrally formed; the square needle base 3 is easy to hold. As shown in Figure 2, the needle tip 2 is conical, so that the puncture needle can bluntly separate the tissue instead of sharply cutting, reducing the possibility of nerve stabbing and cutting during the needle insertion process; there are 6 side holes 5 distributed on the outer wall of the needle tip 2 , the six side holes 5 are respectively distributed on the six surfaces formed by dividing the cone bottom into six equal parts, and the six side holes 5 are arranged alternately at intervals to facilitate the injection and uniform distribution of the medicinal solution.

The square needle seat 3 is provided with a square needle seat groove 6; the novel nerve block puncture needle also includes a square needle cap 12, and the bottom of the square needle cap 12 is provided with a needle cap protrusion matching the square needle seat groove 6. 13, the square needle cap 12 realizes the fixing of the square needle cap 12 and the square needle seat 3 by embedding the needle cap protrusion 13 into the needle seat groove 6, so that the built-in needle core 4 is placed in the needle tube 1, and the built-in needle core The tip of 4 is conical and fits closely with the needle point 2 to ensure that there is no blood or fine tissue blocking the side hole during the puncture.

The needle tube 1 is provided with a cuff 7, and the side wall of the needle tube 1 is provided with a ventilating/liquid tube 8, the cuff 7 communicates with the ventilating/liquid tube 8, and the tail of the ventilating/liquid tube 8 is provided with a one-way valve 9. As shown in FIG. 3 , the square needle base 3 can be connected to a PVC extension tube 10 through threaded connection. One end of the PVC extension tube 10 is connected to the end of the needle tube 1 , and the other end is provided with an interface 11 connected to the syringe.

When the puncture is in place, pull out the built-in needle core 4, connect the needle tube 1 to the syringe, draw back without blood and liquid, then open the one-way valve 9, and inject an appropriate amount of gas (liquid) through the ventilation/liquid tube 8, so that the cuff 7 expands, Thereby, the puncture needle is closely attached to the surrounding tissue, which is beneficial to fix the needle body and is difficult to change the depth and angle; then connect the PVC extension tube 10 and the syringe to inject the medicine.

In this embodiment, the diameter of the needle tube is 0.5 mm, the length of the needle tip is 5 mm, the length of the PVC extension tube is 10 cm, the front end of the cuff is 3 cm away from the needle tip, and the rear end is 2 cm away from the tail of the needle tube. These parameters can be designed according to actual needs, which is not limited in this embodiment.

Example 2:

As shown in Figures 4 to 6, in this embodiment, the cuff 7 is changed from the double bag in Embodiment 1 to a plurality of small bags, and the position corresponding to each small bag on the outer wall of the needle tube 1 is provided with an air transmission/ The liquid holes 14 and each air/liquid hole 14 are independent of each other, and the small sac communicates with the air/liquid hole 14, so that each small sac can be more easily adapted to the shape of the surrounding tissue after being inflated with air/liquid.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to allow those of ordinary skill in the art to understand the content of the present utility model and implement it accordingly, and cannot limit the protection scope of the present utility model with this . All equivalent changes or modifications made according to the essence of the content of the utility model shall fall within the scope of protection of the utility model.

Claims (8)

1. a new type nerve blockage puncture pin, comprise needle tubing (1), needle point (2), square needle stand (3) and built-in nook closing member (4), it is characterized in that: needle point (2) is in coniform, needle point (2) outer wall is distributed with 6 side openings (5), 6 side openings (5) are distributed on six faces being formed by conical base circle six deciles respectively, and 6 side opening (5) interleaved arrangements; Needle tubing (1) is one-body molded with square needle stand (3), and square needle stand (3) is provided with square needle stand groove (6); Needle tubing (1) is provided with cuff (7), needle tubing (1) sidewall is provided with a logical gas/liquid pipe (8), cuff (7) communicates with logical gas/liquid pipe (8), and the afterbody of logical gas/liquid pipe (8) is provided with check valve (9); Described new type nerve blockage puncture pin also comprises square needle cap (12), and the bottom of square needle cap (12) is provided with the pin cap projection (13) matched with square needle stand groove (6).

2. new type nerve blockage puncture pin according to claim 1, is characterized in that: the tip of described built-in nook closing member (4) is coniform, closely agrees with described needle point (2).

3. new type nerve blockage puncture pin according to claim 1, it is characterized in that: cuff (7) is made up of at least two folliculus, the upper position corresponding with each folliculus of needle tubing (1) is provided with and passes gas/liquid hole (14), it is separate that each passes gas/liquid hole (14), and folliculus communicates with biography gas/liquid hole (14).

4. the new type nerve blockage puncture pin according to any one of claims 1 to 3, it is characterized in that: also comprise PVC extension tube (10), PVC extension tube (10) one end is connected with needle tubing (1) end, and the other end is provided with the interface (11) be connected with syringe.

5. the new type nerve blockage puncture pin according to any one of claims 1 to 3, is characterized in that: the diameter of described needle tubing (1) is 0.5mm.

6. the new type nerve blockage puncture pin according to any one of claims 1 to 3, is characterized in that: the length of described needle point (2) is 5mm.

7. the new type nerve blockage puncture pin according to any one of claim 4, is characterized in that: the length of described PVC extension tube (10) is 10cm.

8. the new type nerve blockage puncture pin according to any one of claims 1 to 3, is characterized in that: described cuff (7) front end distance needle point (2) 3cm, rear end distance needle tubing (1) afterbody 2cm.