CN220046014U - Portable cricothyroid membrane puncture needle - Google Patents

Abstract

The utility model relates to the technical field of puncture needles, in particular to a portable cricothyroid membrane puncture needle which comprises a needle head and a needle cylinder, wherein the needle cylinder comprises a needle seat and a piston rod is arranged in the needle cylinder; the needle comprises a needle seat which is in butt joint with the needle seat, the outer end part of the piston rod is provided with a channel which extends inwards in the axial direction and is used for accommodating the needle, the outer end of the channel is flared outwards in the radial direction to form a positioning hole, and in a packaging state, the needle seat is detachably arranged in the positioning hole so as to enable the needle to be kept in the channel; the needle is accommodated in the channel, so that the piston rod is equivalent to a needle sleeve of the needle at the moment, the needle can be shielded to prevent the needle from penetrating through a package or stabbing a person, and the needle sleeve is not required to be additionally arranged for the needle; therefore, compared with the prior art, the scheme is more convenient to package and carry.

Description

Portable cricothyroid membrane puncture needle

Technical Field

The utility model relates to the technical field of puncture needles, in particular to a portable cricothyroid membrane puncture needle.

Background

The cricothyroid membrane puncture is used as a common first-aid technology in otorhinolaryngology, and has wide clinical application; in the case of acute laryngeal obstruction, the artificial respiratory tract can be established in time, and oxygen, sputum suction, or intratracheal therapeutic medication and the like can be carried out through the tract.

In the cricothyroid membrane puncture, a common apparatus is a cricothyroid membrane puncture needle, which is generally composed of a syringe with a piston and a needle, and when in use, the needle is used for puncturing the cricothyroid membrane and then is communicated with a trachea, and then the piston is pushed to ventilate the trachea, or a breathing machine is communicated with the syringe to supply air for a patient.

In the related art, in order to conveniently carry the cricothyroid membrane puncture needle, the common needle head and the needle cylinder are in a split state under the non-use state, and the common needle head and the needle cylinder can be assembled for use when in use, so that the common needle head and the needle cylinder are packaged and carried as two parts, and in order to avoid the needle head penetrating through a package and stabbing a person, the needle head also needs to be packaged and carried for being equipped with a pillowcase, and therefore, the improvement is still needed.

Disclosure of Invention

In order to solve at least one technical problem mentioned in the background art, an object of the present utility model is to provide a portable cricothyroid membrane puncture needle.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the portable cricothyroid membrane puncture needle comprises a needle head and a needle cylinder, wherein the needle cylinder comprises a needle seat and a piston rod is arranged in the needle cylinder; the needle comprises a needle seat which is in butt joint with the needle seat, the outer end part of the piston rod is provided with a channel which extends inwards in the axial direction and is used for accommodating the needle, the outer end of the channel is flared outwards in the radial direction to form a positioning hole, and in a packaging state, the needle seat is detachably arranged in the positioning hole so as to enable the needle to be kept in the channel.

Compared with the prior art, the scheme has the advantages that:

in the scheme, the channel is arranged on the piston rod, and the positioning hole is arranged, so that the needle head can be inserted into the channel and the needle head seat is fixed in the positioning hole when in packaging, and the needle head is correspondingly contained in the piston rod at the moment, so that the needle head and the needle cylinder form a whole without packaging the needle head and the needle cylinder respectively; in addition, because the needle is accommodated in the channel, the piston rod is equivalent to a needle sleeve of the needle at the moment, the needle can be shielded, and the needle is prevented from penetrating through a package or stabbing a person, so that the needle does not need to be additionally provided with the needle sleeve; therefore, compared with the prior art, the scheme is more convenient to package and carry.

Preferably, the needle seat is in interference fit with the positioning hole, or the needle seat is in threaded fit with the positioning hole.

Preferably, the positioning hole is a screw hole, a thread matched with the screw hole is arranged on the peripheral wall of the needle head seat, and the needle head seat penetrates into the screw hole and is in threaded fit with the screw hole through the thread.

Preferably, in the packaged state, the needle seat at least partially extends out of the positioning hole to form an extension section, and one or more wing parts are arranged on the extension section.

Preferably, the puncture needle further comprises a flexible locating piece, a perforation for the needle head to penetrate is arranged in the middle of the locating piece, and in a use state, the locating piece is arranged on the needle head in a penetrating mode through the perforation and is in interference fit with the needle head.

Preferably, in the packaged state, the positioning sheet is detachably mounted on the needle mount.

Preferably, the side wall of at least one side of the positioning piece is axially protruded to form a convex part, and in a packaging state, the convex part is in interference fit with the open end of the needle seat.

Preferably, the positioning piece extends out of the lateral side of the needle seat at least partially in the radial direction.

Additional advantages and effects of the utility model are set forth in part in the detailed description.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model in a packaged state;

FIG. 2 is an exploded view of the piston rod and needle of the present utility model;

FIG. 3 is an axial cross-sectional view of the present utility model at the outer end of the piston rod in the packaged condition;

fig. 4 is an axial cross-sectional view of the needle position of the present utility model in use.

Detailed Description

The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.

In the following description, directional or positional relationships such as the terms "inner", "outer", "upper", "lower", "left", "right", etc., are presented for convenience in describing the embodiments and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Referring to fig. 1-4, the present embodiment provides a portable cricothyroid membrane puncture needle, which comprises a needle head 1 and a needle cylinder 2, wherein the needle cylinder 2 comprises a needle seat 21, a piston rod 3 is arranged in the needle cylinder 2, specifically, a piston (view reason is not shown in the figure) is arranged at the inner end part of the piston rod 3, and the piston can axially move under the pushing of the piston rod 3 in the needle cylinder 2 to realize air blowing; in addition, the peripheral wall of the needle cylinder 2 may be provided with a nozzle 22 communicated with the interior of the needle cylinder 2, and after the puncture is completed, the nozzle 22 is connected with a breathing machine so as to ventilate the trachea of a human body, and the needle cylinder 2 with the nozzle 22 has specific description and application in the existing cricothyroid membrane puncture needle, so that redundant description is not made here.

For convenience of description, in this embodiment, the assembled state of the needle 1 and the syringe 2 is used to divide the puncture needle into a use state and a packaging state, and the use state can be understood as a state in which the needle 1 is assembled on the syringe 2 for performing a normal puncture operation, and specifically, reference may be made to the state shown in fig. 4; while the packaged state, it is understood that the needle 1 and barrel 2 are in an unactivated state, and reference is specifically made to the state shown in fig. 1.

The needle 1 includes a needle seat 11 that is abutted against the needle seat 21, in a use state, as shown in fig. 4, the needle 1 may be assembled to the needle seat 21 by means of a threaded fit or an interference fit of the needle seat 11, and for both of these two matching modes, the conventional matching modes of the needle 1 and the needle cylinder 2 are the conventional matching modes at present, so that redundant description is omitted herein.

As shown in fig. 2 and 3, the outer end of the piston rod 3 (i.e. the end remote from the piston) is provided with an axially inwardly extending channel 31 for receiving the needle 1, the length of the channel 31 being at least greater than the length of the needle 1 to ensure that the needle 1 can be received therein.

The outer end of the channel 31 flares radially outwardly to form a locating hole 32, the locating hole 32 being primarily intended to cooperate with the needle holder 11, said needle holder 11 being removably mounted in the locating hole 32 to retain the needle 1 in the channel 31 in the packaged condition as shown in figures 1 and 3.

Thus, during packaging, the needle 1 can be inserted into the channel 31 and the needle seat 11 is fixed in the positioning hole 32, and the needle 1 is contained in the piston rod 3, so that the needle 1 and the syringe 2 form a whole without packaging the needle 1 and the syringe 2 separately; in addition, since the needle 1 is accommodated in the channel 31, the piston rod 3 is equivalent to the needle sleeve of the needle 1 at this time, and the needle 1 can be shielded to prevent the needle 1 from puncturing the package or injuring a person, so that no needle sleeve is required to be additionally arranged for the needle 1; it can be seen that the present embodiment is more convenient to package and carry than the prior art.

The specific matching mode of the needle seat 11 and the positioning hole 32 is as follows: the needle seat 11 is in threaded fit with the positioning hole 32, specifically, the positioning hole 32 is a screw hole, and the positioning hole 32 can be used for the needle seat 11 to enter; the outer peripheral wall of the needle head seat 11 is provided with threads 111 which are matched with the screw holes, and the needle head seat 11 penetrates into the screw holes and is in threaded fit with the screw holes through the threads 111. Thus, when the needle 1 needs to be started, the needle seat 11 can be rotated so that the needle seat 11 can be screwed out of the positioning hole 32, and the needle 1 can be pulled out.

Of course, in other alternative embodiments, needle hub 11 may be an interference fit with locating hole 32, such that needle hub 11 is expanded within locating hole 32 to secure needle hub 11.

In addition, whether the needle head 1 is in an interference fit mode or a threaded connection mode, a certain force needs to be applied to enable the needle head seat 11 to rotate out of the positioning hole 32, so in this embodiment, the needle head seat 11 is further improved, in a packaging state, as shown in fig. 2 and 3, the needle head seat 11 at least partially extends out of the positioning hole 32 to form an extension section, one or more wing parts 12 are arranged on the extension section, at this time, the wing parts 12 can serve as a force point of a human hand, and the human hand applies force to the wing parts 12 to drive the needle head seat 11 to rotate.

In addition, in the cricothyroid membrane puncture, the needle 1 can not puncture too deeply to avoid puncturing the trachea, but no mark is arranged on the traditional needle 1, and people can only judge the puncture depth of the needle 1 by experience, so that the operation requirement on people is higher, and in order to accurately puncture the needle 1 to a set depth, in the embodiment:

the puncture needle also comprises a flexible locating piece 4, such as a locating piece 4 made of rubber; as shown in fig. 2, the middle of the positioning sheet 4 is provided with a perforation 41 for the needle 1 to penetrate, and in a use state, the positioning sheet 4 is penetrated on the needle 1 through the perforation 41 and is in interference fit with the needle 1; at this time, the positioning sheet 4 is equivalent to a positioning mark, that is, before puncturing, the position of the positioning sheet 4 on the needle 1 can be adjusted according to the required puncturing depth, as shown in fig. 4, so that the positioning sheet 4 is positioned at the required puncturing depth of the needle 1, for example, when the patient punctures later, the positioning sheet 4 is only required to reach the required puncturing depth when being close to the body of the patient, and thus the difficulty in controlling the puncturing depth is greatly reduced.

Wherein, in the packaging state, the positioning sheet 4 is detachably mounted on the needle holder 11, specifically: the axial protrusion of the side wall of at least one side of the locating piece 4 forms a convex part 42, the convex part 42 is in a cylindrical structure, the radius of the convex part is slightly larger than that of the open end of the needle seat 11, and in the packaging state, the convex part 42 is in interference fit with the open end of the needle seat 11 to fix the locating piece 4, and the fixing is equivalent to the integral packaging of the locating piece 4, the needle 1 and the needle cylinder 2.

In order to facilitate the removal of the positioning sheet 4, at least a portion of the positioning sheet 4 extends radially outwards beyond the lateral side of the needle seat 11, so that the portion of the positioning sheet 4 extending beyond the lateral side of the needle seat 11 can be used as an application point for manual force, and a person can lift the portion to pull the positioning sheet 4 out of the needle seat 11.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (8)

1. The portable cricothyroid membrane puncture needle comprises a needle head and a needle cylinder, wherein the needle cylinder comprises a needle seat and a piston rod is arranged in the needle cylinder; the needle comprises a needle seat which is in butt joint with the needle seat, and is characterized in that the outer end part of the piston rod is provided with a channel which extends inwards in the axial direction and is used for accommodating the needle, the outer end of the channel is flared outwards in the radial direction to form a positioning hole, and in a packaging state, the needle seat is detachably arranged in the positioning hole so as to enable the needle to be kept in the channel.

2. The portable cricothyroid membrane puncture needle as claimed in claim 1, wherein the needle base is in interference fit with the positioning hole or the needle base is in threaded fit with the positioning hole.

3. The portable cricothyroid membrane puncture needle according to claim 2, wherein the positioning hole is a screw hole, a thread matched with the screw hole is arranged on the peripheral wall of the needle head seat, and the needle head seat penetrates into the screw hole and is in threaded fit with the screw hole through the thread.

4. A portable cricothyroid membrane puncture needle as claimed in claim 2 or claim 3 wherein in the packaged condition the needle holder extends at least partially out of the locating aperture to form an extension, the extension being provided with one or more wings.

5. The portable cricothyroid membrane puncture needle as set forth in claim 1, further comprising a flexible positioning sheet, wherein the positioning sheet has a hole in the middle for the needle to penetrate, and in use, the positioning sheet is inserted through the hole on the needle and is in interference fit with the needle.

6. The portable cricothyroid membrane puncture needle as claimed in claim 5, wherein the positioning sheet is detachably mounted on the needle mount in a packaged state.

7. The portable cricothyroid membrane puncture needle as claimed in claim 6, wherein the sidewall of at least one side of the positioning sheet is axially protruded to form a protrusion, and in the packaged state, the protrusion is in interference fit with the open end of the needle seat.

8. The portable cricothyroid membrane puncture needle of claim 7, wherein the locating tab extends at least partially radially outward beyond the sides of the needle mount.