CN218589092U

CN218589092U - Cricothyroid membrane stent

Info

Publication number: CN218589092U
Application number: CN202221943742.4U
Authority: CN
Inventors: 唐正一; 马利贤; 韦干观; 陆升; 胡丽珊; 林文彪; 席婷; 陈安; 陈雷
Original assignee: 923th Hospital of the Joint Logistics Support Force of PLA
Current assignee: 923th Hospital of the Joint Logistics Support Force of PLA
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-03-10
Anticipated expiration: 2032-07-26

Abstract

The utility model relates to the technical field of medical apparatus, in particular to a cricothyroid membrane expansion stent, which comprises a stent body, an air bag and a puncture guide needle; the air bag is arranged in the bracket body so as to expand the inner diameter of the bracket body after inflation, and a needle tube is fixedly inserted in the air bag; the puncture guide needle penetrates through the needle tube and is inserted into the needle tube, the puncture cricothyroid membrane and the guide support body are arranged in the puncture hole, one end of the puncture guide needle is a tip, and a limiting structure which can be abutted to the needle tube is arranged on the tip so that the air bag can be drawn out in the process of pulling out the puncture guide needle. The utility model discloses a simple operation can expand the internal diameter that is used for the support body of ventilating, establishes the artifical air flue that the air output is sufficient rapidly, makes the patient breathe smoothly.

Description

Cricothyroid membrane stent

Technical Field

The utility model relates to the technical field of medical equipment, in particular to panonychomycosis expansion support.

Background

The cricothyroid membrane is located between the cricoid cartilage and the thyroid cartilage, is a conical elastic fibrous connective tissue membrane, and is a part of the elastic cone in front of the elastic diaphragm of the larynx. The laryngeal elastic membrane is located on the deep surface of the mucous membrane of the laryngeal cavity, belongs to a connective tissue membrane containing elastic fibers, is divided into an upper part and a lower part by a laryngeal chamber, the upper part is a square membrane, the lower part is an elastic cone, and the elastic cone starts from the lower part of the inner surface of the horn of the thyroid cartilage and is downwards attached to the inner side of the upper edge of the cricoid cartilage in a fan shape. The anterior middle part of the elastic cone is attached between the lower edge of the thyroid cartilage and the upper edge of the cricoid cartilage arch and is called the cricothyroid membrane, the thickened part at the center is called the middle ligament of the cricothyroid membrane, and when the cricothyroid membrane incision or puncture is performed, the cricothyroid membrane and the middle ligament of the cricothyroid membrane are mainly incised. Thyrocricocentesis or incision is a commonly used first-aid technique in otolaryngology and is widely applied clinically; when acute laryngeal obstruction occurs, it can establish an artificial respiration channel in time and supply oxygen, suck phlegm or intratracheal therapeutic drugs and the like through the channel.

At present, a common cricothyroid membrane puncture is commonly used for treating acute upper respiratory obstruction in emergency, a non-professional person commonly uses a common cricothyroid membrane puncture needle which is easy to master, the ventilation pipeline is thin, and the condition of insufficient ventilation exists. The thyrocricoid puncture device with a thick pipeline is difficult to master by non-professionals. The field of acute upper airway obstruction can directly lead to rapid death of the patient if professional medical personnel are not available.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the artificial airway ventilation volume is difficult to guarantee when having non professional to carry out the cricothyroid membrane puncture art among the prior art, providing a non professional can master the cricothyroid membrane expansion support that uses, use this cricothyroid membrane expansion support can expand the internal diameter that is used for the support body of ventilating through simple operation, establish the artificial airway that the ventilation volume is sufficient rapidly, make the patient breathe smoothly.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the cricothyroid membrane dilatation stent comprises a stent body, an air bag and a puncture guide needle; the air bag is arranged in the bracket body to expand the inner diameter of the bracket body after inflation, and a needle tube is fixedly inserted in the air bag; the puncture guide needle penetrates through the needle tube and is inserted into the needle tube and used for puncturing the cricothyroid membrane and guiding the support body to be arranged in the puncture hole, one end of the puncture guide needle is a tip, and a limiting structure which can be abutted to the needle tube is arranged on the tip so that the air bag can be drawn out in the process of pulling out the puncture guide needle.

Preferably, the limiting structure is an annular flange with an outer diameter larger than the inner diameter of the needle tube, and the annular flange surrounds the outer peripheral surface of the tip of the needle tube and is connected with the surrounding needle tube in an integrated forming mode.

Preferably, the stent body is a stent graft, and the length of the stent graft is greater than that of the balloon.

Preferably, the air bag is of an annular column structure, and the needle tube penetrates through and is fixedly inserted into an inner hole of the air bag.

Preferably, the outer peripheral surface of the stent body is adhered with a hemostatic drug.

Preferably, the other end of the puncture guiding needle is detachably connected with a handle rod.

Since the technical scheme is used, the utility model discloses following beneficial effect has:

the utility model provides a cricothyroid membrane expansion bracket, which adopts the puncture guide needle to puncture the cricothyroid membrane, and can drive the bracket body to be inserted into the cricothyroid membrane along with the puncture guide needle through the expanded air bag; then expanding the stent body to a proper inner diameter by further expanding the balloon; finally, the air bag drawing puncture guide needle is reduced, and the air bag is driven to be separated from the bracket body through the limit structure which is abutted against the needle tube, so that the bracket body forms an artificial air passage with sufficient ventilation capacity; compared with the prior art, the utility model is simple in operation convenient, also can guarantee that artifical air flue air output is sufficient to non professional on handling acute upper respiratory tract obstruction for the patient breathes smoothly, improves the success rate of rescuing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an overall schematic view of the present invention;

fig. 2 is an exploded schematic view of fig. 1.

In the attached drawings, 1, a bracket body; 2. an air bag; 21. a gas valve core; 3. a puncture guide needle; 4. a needle tube; 5. a limiting structure; 6. a handle rod.

Detailed Description

The core of the utility model is to provide a first membrane expansion support, this first membrane expansion support accessible simple operation can expand the internal diameter that is used for the support body of ventilating, establishes the sufficient artifical air flue of air output rapidly, makes the patient breathe smoothly. In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 and 2, in an embodiment, the present invention provides a cricothyroid membrane stent, which includes a stent body 1, a balloon 2 and a puncture guide needle 3:

the stent body 1 is preferably configured as a stent graft, and the stent graft (CS) refers to a stent formed by coating a metal stent with a special membranous material (polytetrafluoroethylene, dacron, polyester, polyurethane, etc.), which retains the function of the metal stent and has the characteristics of the membranous material. The whole covered stent is cylindrical, the covered stent before operation is arranged in a conveyor, and the conveyor conveys the covered stent to the position of arterial lesion and then releases the covered stent, thereby achieving the purpose of treatment. The covered stent is a special stent and is different from a metal bare stent mainly in the membranous structure. The bare metal stent is mainly used for supporting, while the covered stent can isolate blood vessels and blood, and is mainly used for isolating.

In addition, the air bag 2 is of an annular column structure and is arranged in the covered stent, the end surfaces of the two ends of the air bag 2 are arc-shaped, and the whole length is smaller than that of the covered stent, so that the air bag can be completely contained in the covered stent, and the air bag 2 can expand outwards along the radial direction after being inflated to expand the inner diameter of the stent body 1; the needle tube 4 is fixedly inserted into the inner hole of the air sac 2, and the length of the needle tube 4 is slightly longer than that of the air sac 2, preferably the same as that of the covered stent.

In addition, puncture guide needle 3 runs through to be inserted and establishes in needle tubing 4 for puncture cricothyroid membrane and guide support body 1 arrange in the puncture, puncture guide needle 3 one end is most advanced, be equipped with limit structure 5 that can with needle tubing 4 butt on this most advanced in order to extract gasbag 2 at the in-process of pulling out puncture guide needle 3, specifically, this limit structure 5 is the annular flange that the external diameter is greater than the internal diameter of needle tubing 4, the annular flange encircles the most advanced outer peripheral face of needle tubing 4 and is connected with encircleing needle tubing 4 integrated into one piece.

In addition to the above-described embodiment, the hemostatic drug may be attached to the outer circumferential surface of the stent body 1, so that the hemostatic drug can stop bleeding of the puncture wound in contact with the outer circumferential surface of the stent body 1 after the stent body 1 is inserted.

Furthermore, a handle 6 with the diameter about the outer diameter of the needle tube 4 can be arranged at the other end of the puncture guide needle 3, and the puncture guide needle 3 can be pushed to guide the bracket body 1 to puncture the cricothyroid membrane conveniently through the handle 6, or the puncture guide needle 3 can be pulled to draw out the air bag 2; it should be noted that the handle 6 is preferably detachably connected to the end of the puncture guide needle 3, for example, by screwing, so that the handle 6 can be removed first when the puncture guide needle 3 is installed, the puncture guide needle 3 is inserted into the needle tube 4, and then the handle 6 is installed again, so that the needle tube 4 can be limited to a certain extent to prevent the needle tube 4 from falling off, and the puncture guide needle 3 can be easily installed and removed.

The utility model discloses a working process and principle as follows:

fill partly gaseous messenger gasbag 2 through the case 21 of aerifing on gasbag 2 earlier and just can remove along with puncture guide needle 3 and do not break away from support body 1 to gasbag 2, then promote puncture guide needle 3 and puncture the pangolin membrane, drive support body 1 through gasbag 2 at this in-process and inject inside the pangolin membrane, it makes gasbag 2 further outwards expand to inflate in gasbag 2 to rethread case 21, so that support body 1's internal diameter expansion, expand to suitable back, emit gasbag 2 internal part gas through case 21, pull puncture guide needle 3 drives gasbag 2 through 5 limit structure with 4 looks butt of needle tubing and breaks away from support body 1 at last.

The above details are provided for the cricothyroid membrane stent provided by the present invention. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The cricothyroid membrane stent is characterized in that: comprises a bracket body (1), an air bag (2) and a puncture guide needle (3); the air bag (2) is arranged in the bracket body (1) to expand the inner diameter of the bracket body (1) after inflation, and a needle tube (4) is fixedly inserted in the air bag (2); puncture guide needle (3) run through insert establish in needle tubing (4) for puncture cricothyroid membrane and guide support body (1) arrange in the puncture, puncture guide needle (3) one end is most advanced, is equipped with limit structure (5) that can with needle tubing (4) butt on this most advanced and takes out gasbag (2) in the in-process of pulling out puncture guide needle (3).

2. The cricothyroid membrane expansion stent of claim 1, wherein: the limiting structure (5) is an annular flange with the outer diameter larger than the inner diameter of the needle tube (4), and the annular flange surrounds the outer peripheral surface of the tip of the needle tube (4) and is connected with the surrounding needle tube (4) in an integrated forming mode.

3. The cricothyroid expansion stent of claim 1, wherein: the stent body (1) is a covered stent, and the length of the covered stent is greater than that of the air bag (2).

4. The cricothyroid expansion stent of claim 1, wherein: the air bag (2) is of an annular column structure, and the needle tube (4) penetrates through and is fixedly inserted into an inner hole of the air bag (2).

5. The cricothyroid membrane expansion stent of claim 1, wherein: hemostatic drugs are attached to the outer peripheral surface of the bracket body (1).

6. The cricothyroid membrane expansion stent of claim 1, wherein: the other end of the puncture guide needle (3) is detachably connected with a handle rod (6).