CN204394637U - A kind of single chamber dual pathways combined spinal-epidural anesthesia one puncture needle - Google Patents

Abstract

The utility model proposes a kind of single chamber dual pathways combined spinal-epidural anesthesia one puncture needle, comprise pedestal and needle tubing, described needle tubing is fixed on described pedestal, and described pedestal is provided with the passage with described needle tubing conducting; Empty to form the inner chamber making epidural catheter and/or lumbar puncture needle pass in wherein said needle tubing; Wherein, the external diameter of spinal needle is 0.45-0.55mm, and the external diameter of epidural catheter is 0.55-0.9mm.This utility model can either carry out epidural anesthesia can carry out Spina anesthesia again, can row lumbar anesthesia and insert epidural catheter simultaneously.

Description

A single-cavity double-channel combined spinal epidural anesthesia integrated puncture needle

technical field

The utility model relates to the technical field of medical instruments, in particular to a single-cavity double-channel lumbar epidural combined anesthesia integrated puncture needle.

Background technique

Combined spinal anesthesia has become one of the preferred anesthesia methods for various operations on the lower abdomen and lower limbs. Combined spinal anesthesia has the advantages of quick onset, good block effect, and unlimited anesthesia time. The combined spinal-epidural anesthesia puncture needle used at this stage is a needle-in-needle, which often occurs when the epidural catheter is blocked after the spinal anesthetic is injected or the epidural catheter is not placed smoothly, resulting in the inability to perform the spinal canal. Combined anesthesia.

Specifically, when using the existing combined spinal epidural anesthesia puncture needle for intraspinal combined anesthesia, the patient is placed in the lateral position, and after successful epidural puncture in the intervertebral space, a 5# fine needle is used to perform subarachnoid anesthesia. Cavity puncture, the needle core was pulled out after the typical dura mater was lost, and the local anesthetic solution was injected after the cerebrospinal fluid flowed out, and the epidural catheter was inserted after the fine spinal anesthesia puncture needle was pulled out. However, the existing spinal-epidural anesthesia puncture needle often occurs in the process of using the epidural catheter after the spinal anesthesia cannot be inserted smoothly, causing great pain to the patient.

Utility model content

Aiming at the problem that the puncture needle structure of the existing spinal canal combined anesthesia is unreasonable and the effect is not good, the utility model mainly breaks through and solves a kind of needle puncture that can perform epidural anesthesia and subarachnoid anesthesia at the same time. Combined anesthesia integrated puncture needle.

In order to achieve this purpose, the utility model provides a single-cavity double-channel spinal epidural anesthesia integrated puncture needle, including a base and a needle tube, the needle tube is fixed on the base, and the base is equipped with The channel through which the needle tube leads; wherein the needle tube is hollow to form an inner cavity for the epidural catheter and/or lumbar puncture needle to pass through; wherein, the outer diameter of the spinal anesthesia needle is 0.45-0.55mm, and the epidural The outer diameter of the catheter is 0.55-0.9 mm.

Wherein, the base is provided with a passage through the base, one end of the passage is connected to the needle tube, and the other end is formed on the base for extending the epidural catheter and the lumbar puncture needle. into the opening of the needle.

Wherein, the inner diameter of the channel at the open end is larger than the inner diameter of the end leading to the needle tube.

Wherein, the base is provided with an epidural catheter channel and a lumbar puncture needle channel through the base; wherein the epidural catheter channel is connected to the needle tube, and the other end is connected to the base An epidural catheter opening for passing the epidural catheter is formed on the seat; and the lumbar puncture needle channel is also connected to the needle tube, and the other end is formed on the base for the lumbar puncture needle Needle opening through the waist.

Wherein, the lumbar puncture channel is arranged coaxially with the inner cavity of the needle tube, and the epidural catheter channel forms an included angle with the lumbar puncture channel.

Wherein, the length of the needle tube is 8-12cm.

Wherein, the needle tube is circular with an outer diameter of 1.6-1.8mm.

Wherein, the needle tube is elliptical, and the long axis of the ellipse is 1.6-1.8 mm, and the short axis is 1.4-1.6 mm.

The beneficial effects of the utility model are: the utility model proposes a single-cavity double-channel lumbar epidural combined anesthesia integrated puncture needle, which can perform both epidural anesthesia and spinal anesthesia, and can perform spinal anesthesia and epidural anesthesia at the same time. extramembranous duct. Its advantage is that it can put the epidural catheter first and then perform spinal anesthesia, avoiding the situation that the block plane was affected by the poor catheter placement after spinal anesthesia in the past. Simultaneously, the utility model embodiment also proposes two kinds.

Description of drawings

Through the following description of a preferred embodiment of the utility model in conjunction with the accompanying drawings, the technical solution and technical effects of the utility model will become clearer and easier to understand. in:

Fig. 1 shows a schematic cross-sectional structural view of a single-cavity double-channel combined spinal-epidural anesthesia integrated puncture needle according to an embodiment of the present invention;

Fig. 2 shows a schematic cross-sectional structure diagram of a single-cavity double-channel combined spinal epidural anesthesia integrated puncture needle according to another embodiment of the present invention;

Explanation of reference signs:

1. Needle tube;

2. Waist puncture;

3. Epidural catheter;

4. Opening;

41. Epidural catheter opening;

42. Waist puncture needle opening;

5. Needle.

Detailed ways

A preferred embodiment of the present utility model will be described below in conjunction with the accompanying drawings.

The utility model provides a single-cavity double-channel spinal epidural anesthesia integrated puncture needle, comprising a base and a needle tube 1, the needle tube 1 is fixed on the base, and the base is provided with a 1 conduction channel. As shown in FIG. 3 , the needle tube 1 is hollow to form a lumen for the epidural catheter and/or lumbar puncture needle to pass through. As shown in Figure 1 and Figure 3, the outer diameter of the spinal anesthesia needle is 0.45-0.55 mm, and the outer diameter of the epidural catheter is 0.55-0.9 mm.

Specifically, as shown in FIG. 2 , a channel is provided on the base. One end of the channel communicates with the inner cavity of the needle tube 1 , and the other end has an opening 4 on the base. Under this structure, the epidural catheter 3 and the lumbar puncture needle 2 extend into the base through the same opening 4, and protrude from the needle head 5 after passing through the inner cavity of the needle tube 1 respectively.

As shown in Figure 2, in another embodiment of the present invention, two channels are provided on the base, through which the epidural catheter and the lumbar puncture needle pass through respectively, and different openings are provided on the base, namely Epidural catheter opening 41 and lumbar puncture needle opening 42 .

As shown in Figure 2, the base is provided with an epidural catheter channel and a lumbar puncture needle channel through the base; wherein the epidural catheter channel and the epidural of the needle tube 1 The catheter lumen is connected, and the other end forms an epidural catheter opening 41 or 42 on the base for passing the epidural catheter; and the lumbar puncture channel and the inner cavity of the needle tube 1 conduction, and the other end forms a lumbar puncture needle opening 42 or 41 on the base for passing the lumbar puncture needle. The channel of the lumbar puncture needle and the epidural catheter communicates with the inner cavity of the needle tube 1 and protrudes from the needle 5 .

As shown in Figure 1 and Figure 2, the length of the needle tube 1 is 8-12 cm. Wherein the needle tube 1 is circular with an outer diameter of 1.6-1.8 mm. Wherein, the needle tube 1 can also be elliptical, and the major axis of the ellipse is 1.6-1.8mm, and the minor axis is 1.4-1.6mm.

When using the old combined lumbar epidural puncture package, the patient takes the lateral position, and after the successful epidural puncture in the intervertebral space, the subarachnoid puncture is performed with a 5# fine needle. Pull out the needle core, inject local anesthetic solution after seeing the cerebrospinal fluid flow out, pull out the puncture needle, and insert the epidural catheter. Due to the failure of catheter placement after spinal anesthesia, it happens from time to time that the catheter cannot be inserted and combined spinal epidural anesthesia fails to cause great pain to the patient.

Aiming at the above problems, the utility model reformed the puncture needle, and developed a new single-cavity double-channel spinal-epidural combined anesthesia integrated puncture needle, which mainly includes a 0.55 to 0.9mm epidural catheter and a 0.45-0.55mm lumbar puncture needle core. , the puncture needle is single-lumen and double-channel, which can be used for spinal anesthesia and epidural catheterization at the same time. Its advantage is that it can first place an epidural catheter before performing spinal anesthesia, avoiding the situation that the previous spinal anesthesia followed by catheter placement was not smooth and affected the plane of anesthesia block.

For those skilled in the art, with the development of technology, the concept of the utility model can be realized in different ways. Embodiments of the invention are not limited to the examples described above but may vary within the scope of the claims.

Claims (8)

1. single chamber dual pathways combined spinal-epidural anesthesia one puncture needle, it is characterized in that, comprise pedestal and needle tubing, described needle tubing is fixed on described pedestal, and described pedestal is provided with the passage with described needle tubing conducting; Empty to form the inner chamber making epidural catheter and/or lumbar puncture needle pass in wherein said needle tubing; Wherein, the external diameter of spinal needle is 0.45-0.55mm, and the external diameter of epidural catheter is 0.55-0.9mm.

2. single chamber according to claim 1 dual pathways combined spinal-epidural anesthesia one puncture needle, it is characterized in that, described pedestal is provided with the passage that runs through described pedestal, described passage end and described needle tubing conducting, the other end forms the opening for making described epidural catheter and lumbar puncture needle stretch into described needle tubing on pedestal.

3. single chamber according to claim 2 dual pathways combined spinal-epidural anesthesia one puncture needle, is characterized in that, described passage is greater than internal diameter that is described and needle tubing conducting one end at the internal diameter of described opening.

4. single chamber according to claim 1 dual pathways combined spinal-epidural anesthesia one puncture needle, it is characterized in that, described pedestal is provided with the epidural catheter passage and a lumbar puncture needle passage that run through described pedestal; Wherein said epidural catheter passage and described needle tubing conducting, and the other end forms the epidural catheter opening for making epidural catheter pass on described pedestal; And described lumbar puncture needle passage also with described needle tubing conducting, and the other end forms the lumbar puncture needle opening for making lumbar puncture needle pass on described pedestal.

5. single chamber according to claim 4 dual pathways combined spinal-epidural anesthesia one puncture needle, it is characterized in that, the coaxial of described lumbar puncture needle passage and described needle tubing is arranged, and described epidural catheter passage and described lumbar puncture needle passage have angle.

6. the single chamber dual pathways combined spinal-epidural anesthesia one puncture needle according to any one of claim 1-5, it is characterized in that, the length of described needle tubing is 8-12cm.

7. the single chamber dual pathways combined spinal-epidural anesthesia one puncture needle according to any one of claim 1-5, it is characterized in that, described needle tubing is circular, and overall diameter is 1.6-1.8mm.

8. the single chamber dual pathways combined spinal-epidural anesthesia one puncture needle according to any one of claim 1-5, it is characterized in that, described needle tubing is oval, and the major axis of described ellipse is 1.6-1.8mm, and minor axis is 1.4-1.6mm.