CN220344462U - Dual-channel epidural catheter and puncture fitting - Google Patents

Abstract

The utility model discloses a double-channel epidural catheter and a puncture fitting, which belong to the technical field of medical instruments, and particularly relate to a double-channel epidural catheter and a puncture fitting, wherein the double-channel epidural catheter comprises a puncture structure, the puncture structure comprises a puncture needle for puncturing a spinal canal, the bottom of the puncture needle is connected with a catheter-guiding catheter for guiding the catheter, two guiding notches are symmetrically formed on the left side and the right side of the top of the catheter, an outer catheter component comprises an outer catheter and a front semicircular split, the outer catheter is arranged in the catheter-guiding catheter, the front semicircular split extends out of the catheter-guiding catheter, the outer catheter structure is converted into a front semicircular split and an outer catheter two-way structure, when the outer catheter is placed, two guiding notches are formed at the front end of the catheter-guiding catheter, so that the catheter-guiding catheter accurately guides the epidural catheter in the upper and lower directions, namely, the two front semicircular split parts are distributed up and down from the guiding notches, a T-shaped structure is formed in the epidural cavity, and the effect of one catheter can be realized without secondary puncture operation.

Description

Dual-channel epidural catheter and puncture fitting

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a double-channel epidural catheter and a puncture fitting.

Background

In labor analgesia, due to anatomical factors, the analgesic effect is often difficult to be taken into account.

The pain can be generated in a large range: the first labor is mainly uterine contraction pain conducted by T10-L1; in the second stage, the pain is mainly pain caused by the fetal presenting compression conducted by S2 to S4.

The best blocking range for the intra-vertebral canal analgesia is the upper and lower three sections of the catheter tip, and more than six sections of T10-S4 are broken. Therefore, in theory, the analgesic effect is difficult to ensure both up and down, and only the effect of relieving the uterine pain or the birth canal pain is biased, so that a double-channel epidural catheter and a puncture fitting are designed for solving the problem.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.

Therefore, the utility model aims to provide a double-channel epidural catheter and a puncture fitting, by converting the structure of the outer catheter into two distribution structures of a semicircular split at the front end and the outer catheter, when the outer catheter is placed, two guide notches are arranged at the front end of a tube-placing guide catheter, so that the tube-placing guide catheter can accurately guide the epidural catheter in the upper and lower directions, namely, the two semicircular split at the front end are distributed up and down and extend from the guide notches, a T-shaped structure is formed in an epidural cavity, secondary puncture operation is not needed, and the effect of up and down compromise can be realized by one catheter.

In order to solve the technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

a piercing fitment, comprising:

the puncture structure comprises a puncture needle for puncturing the vertebral canal, the bottom of the puncture needle is connected with a catheter guiding tube for guiding the catheter, and two guiding gaps are symmetrically formed in the left side and the right side of the top of the guiding tube.

A dual channel epidural catheter, comprising: the lancing fitting of any one of the above claims, an outer catheter component connected to the lancing fitting.

As a preferred embodiment of the dual-channel epidural catheter of the utility model, wherein: the outer catheter component comprises an outer catheter and a front-end semicircular split integrally formed and connected to the front end of the outer catheter, the outer catheter is arranged in the catheter guiding tube, and the front-end semicircular split extends out of the catheter guiding tube.

As a preferred embodiment of the dual-channel epidural catheter of the utility model, wherein: the front end semicircle split is provided with two groups, the two groups of front end semicircle split are of a bifurcated structure and are combined into a whole in a cylindrical shape.

Compared with the prior art: through changing outer pipe structure into front end semicircle split and two distribution structures of outer pipe, when outer pipe is put into, set up two guide notch at the front end of putting the pipe guide pipe, ensure that the pipe guide pipe of putting is accurate to guide the upper and lower two directions of epidural pipe, two front end semicircle split are upper and lower distribution and extend from guide notch department, form T type structure in the epidural space, need not the secondary puncture operation, simultaneously, two front end semicircle split are upper and lower distribution, can "branch head action" after getting into the epidural space, namely, one of the binary channels walks to patient's head, one walks to the afterbody, in the use in-process, can more accurate selection head is dosed or afterbody is dosed, an effect about can be realized to one pipe.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings, which are to be understood as merely some embodiments of the present utility model, and from which other drawings can be obtained by those skilled in the art without inventive faculty. Wherein:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic elevational view of the present utility model;

FIG. 3 is a schematic view of the outer catheter part structure of the present utility model.

In the figure: 100 puncture structure, 110 puncture needle, 120 catheterization guide tube, 121 guide notch, 200 outer catheter component, 210 outer catheter, 220 front end semicircle split.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Next, the present utility model will be described in detail with reference to the drawings, wherein the sectional view of the device structure is not partially enlarged to general scale for the convenience of description, and the drawings are only examples, which should not limit the scope of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

The utility model provides a double-channel epidural catheter and a puncture fitting, which are characterized in that the structure of an outer catheter is changed into two distribution structures of a semicircular split at the front end and the outer catheter, when the outer catheter is placed, two guide notches are arranged at the front end of a tube-placing guide tube, so that the tube-placing guide tube can accurately guide the epidural catheter in the upper and lower directions, namely, the two semicircular split at the front end are distributed up and down and extend from the guide notches, a T-shaped structure is formed in an epidural cavity, the secondary puncture operation is not needed, the effect of both the upper and lower aspects of the catheter can be realized, and referring to figures 1-3, the double-channel epidural catheter comprises a puncture structure 100 and an outer catheter component 200;

1-3, the puncture structure 100 comprises a puncture needle 110 for puncturing a vertebral canal, a catheter-guiding tube 120 for guiding the catheter is connected to the bottom of the puncture needle 110, two guiding notches 121 are symmetrically formed on the left side and the right side of the top of the guiding tube 120, and in order to ensure that the catheter-guiding tube 120 accurately guides the epidural catheter 210 in the up-down direction, two guiding notches 121 are formed at the front end of the catheter-guiding tube 120 to ensure that the epidural catheter is penetrated out from the two notches through the outward tilting action which is already arranged in the original plastic process, namely, two semicircular split leaves 220 at the front end are distributed up and down and extend from the guiding notches 121, so that a T-shaped structure is formed in the epidural cavity, and secondary puncture is avoided;

with continued reference to fig. 1-3, the outer catheter component 200 includes an outer catheter 210 and a front-end semicircular split 220 integrally formed and connected to the front end of the outer catheter 210, where the front-end semicircular split 220 has two groups, and the two groups of front-end semicircular split 220 are in a bifurcated structure and are combined to form a cylinder.

Working principle: when the utility model is used, the front semicircular split 220 is pinched by hands and is sent into the tube-placing guide tube 120, two guide notches 121 are arranged at the front end of the tube-placing guide tube 120, after the front semicircular split 220 leaves the tube-placing guide tube 120, the front semicircular split 220 enters the upper and lower epidural space along the front outward warping design due to losing the direction limiting the free opening of the front semicircular split 220, and the two front semicircular split 220 extend out from the guide notches 121 in an up-down distribution manner, so that a T-shaped structure is formed in the epidural space, and secondary puncture is avoided.

Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (4)

1. A lancing fitment, comprising:

the puncture structure (100), the puncture structure (100) comprises a puncture needle (110) for puncturing the vertebral canal, the bottom of the puncture needle (110) is connected with a catheter guiding tube (120) for guiding the catheter, and two guiding gaps (121) are symmetrically formed in the left side and the right side of the top of the guiding tube (120).

2. A dual-channel epidural catheter comprising the puncture outfit of claim 1 and an outer catheter component (200) connected to the puncture outfit.

3. The dual-channel epidural catheter of claim 2, wherein the outer catheter component (200) comprises an outer catheter (210) and a front semicircular segment (220) integrally formed with the front end of the outer catheter (210), the outer catheter (210) is disposed in the catheter guide tube (120), and the front semicircular segment (220) extends out of the catheter guide tube (120).

4. A dual-channel epidural catheter according to claim 3, wherein the front-end semicircular segments (220) are provided in two groups, and the two groups of front-end semicircular segments (220) are of a bifurcated structure and are combined in a semicircular two-in-one manner to form a cylindrical shape as a whole.