CN219231083U - Tracheal cannula - Google Patents

Abstract

The utility model discloses an endotracheal intubation, which comprises a tube body, wherein two mutually symmetrical concave surfaces are arranged on the outer wall of one end, close to the trachea, of the tube body, and the cross sections of the two concave surfaces and the tube body are conical. According to the tracheal intubation, the two mutually symmetrical concave surfaces are arranged on the outer wall of one end, close to the trachea, of the tracheal intubation, and the two concave surfaces are conical with the section of the tracheal intubation, so that the appearance of the tracheal intubation is matched with that of a glottic structure, compression of a pipeline on a vocal cord is avoided in the intubation process and after the intubation, and the probability of occurrence of vocal cord injury after the tracheal intubation is reduced.

Description

Tracheal cannula

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an endotracheal intubation.

Background

The tracheal catheter is a common clinical medical instrument, can provide a channel for the gas circulation between the respiratory system and the outside of a patient for the symptoms of sudden cardiac respiratory arrest, acute respiratory failure, paralysis of a breathing machine, respiratory tract obstruction and the like, and also can protect the lung from being polluted by gastric contents and nasopharyngeal materials, thereby ensuring the normal progress of breathing and providing support for the life maintenance of the patient. The application of the tracheal catheter requires the operation of an endotracheal tube, wherein the endotracheal tube is put into the trachea through the oral cavity or nasal cavity route and then through the glottis under the anesthesia condition. Complications after tracheal intubation extubation are lesions of the larynx and vocal cords and abnormal glottis functions, manifested by hoarseness and voice dysfunction, which often occur in female patients (female glottis size is smaller than that of male) and those who use large-size tracheal catheters.

The causes of vocal cord injury after tracheal intubation are various, such as operator factors including unskilled operation, repeated intubation, rough operation, etc.; also factors of the tracheal catheter such as the size, length, shape, curvature, material, balloon pressure, etc. The traditional tracheal catheter has a circular cross section, is not matched with the conical glottis inlet, and is capable of continuously pressing the vocal cords after the intubation, so that the vocal cords and peripheral nerve injuries during and after the intubation are easily caused.

Disclosure of Invention

In order to solve the above problems in the prior art, an object of the present utility model is to provide an endotracheal tube, which reduces the occurrence of vocal cord and peripheral nerve injuries during and after intubation.

In order to solve the technical problems, the utility model adopts the following technical scheme: an endotracheal tube comprising:

the pipe body, be provided with two concave surfaces that are symmetrical each other on the pipe body is close to the intraductal one end outer wall of inserting, and two the concave surface is the toper with the cross-section of pipe body.

As a further improvement of the utility model, the joint of the two concave surfaces and the pipe body is provided with an arc chamfer.

As a further improvement of the present utility model, the taper has an angle a of 90 to 160 degrees and an angle b of 45 to 80 degrees.

As a further improvement of the present utility model, two of the concave surfaces are provided along the length direction of the pipe body, and the length of the concave surface is 2-5CM.

As a further improvement of the utility model, the distance between the end face of the pipe body near the end inserted into the trachea and the nearest section of the concave surface is 4 CM to 6CM.

As a further improvement of the utility model, the end of the tube body near the insertion into the trachea is coated with a silicone coating.

As a further improvement of the utility model, the end face of one end of the pipe body inserted into the trachea is an inclined plane, and a Murphy hole is arranged on the outer wall of the inclined plane pipe body.

As a further improvement of the utility model, scale marks are arranged on the outer side wall of the pipe body.

As a further improvement of the utility model, one end of the pipe body is provided with a joint communicated with the pipe body, the outer wall of the other end of the pipe body is provided with an air bag, the outer wall of one end of the pipe body is provided with an inflation pipe, one end of the inflation pipe penetrates through the outer wall of the pipe body and then extends into the pipe body to be communicated with the air bag, the other end of the inflation pipe is provided with a pressing bag for inflating the air bag, and the other end of the pressing bag is connected with a cap plug.

As a further improvement of the utility model, the pipe diameter of the air charging pipe is smaller than that of the pipe body.

Compared with the prior art, the utility model has the following beneficial effects:

according to the tracheal intubation, the two mutually symmetrical concave surfaces are arranged on the outer wall of one end, close to the trachea, of the tracheal intubation, and the two concave surfaces and the section of the tracheal intubation are conical, so that the appearance of the tracheal intubation is matched with that of a glottic structure, the compression of a pipeline on a vocal cord is avoided in the intubation process and after the intubation, and the probability of occurrence of vocal cord injury after the tracheal intubation is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of an endotracheal tube according to the present utility model;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 of an endotracheal tube according to the present utility model;

fig. 3 is a schematic view showing a three-dimensional structure of an endotracheal tube according to the present utility model

In the accompanying drawings:

100. a tube body; 100-a, concave;

200. a joint;

300. an air bag;

400. an inflation tube;

500. pressing the bag; 510. a cap plug.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Fig. 1 to 3 are schematic structural views of an embodiment of an endotracheal tube according to the present utility model, the main body portion of which includes a tube body 100.

Two mutually symmetrical concave surfaces 100-a are arranged on the outer wall of one end of the pipe body 100, which is close to the inside of the inserted air pipe, and the cross sections of the two concave surfaces 100-a and the pipe body 100 are conical. The tube body 100 is preferably made of medical PC or PVC, which has certain toughness and strength. The concave surface 100-a is positioned at the glottis of human body, the concave surface 100-a is a glottis section, and the conical section and the glottis and annular back space are formedThe structure is completely anastomosed, the compression to glottis is reduced, and the damage is smaller. In this embodiment, the taper has an angle a and an angle b, the angle a is 90-160 degrees, the angle b is 45-80 degrees, wherein the angle a is the central angle of the taper, and according to the prior art, the angle a and the angle b are two parameters with a certain proportional relationship, specifically a=360-2 x (180-b), and when the angle b is 45 degrees, the angle a is 90 degrees; when the angle b is 60 degrees, the angle a is 120 degrees; when the angle b is 80 degrees, the angle a is 160 degrees. I.e. angle a is twice the angle b. Preferably, in the present embodiment, in order to make the concave surface 100-a better conform to the glottic structure, the angle b is set to 60 degrees, and the angle a is set to 120 degrees, in which case the tapered cross-sectional area occupies the cross-sectional area of the tube body 100

。

Preferably, in the present embodiment, the connection between the two concave surfaces 100-a and the pipe body 100 is provided as a circular arc chamfer. The two concave surfaces 100-a and the tube body 100 have conical cross sections and arc chamfers at the ends, so that sharp edges are further prevented from pressing the vocal cords. Preferably, in the present embodiment, two concave surfaces 100-a are disposed along the length direction of the tube body 100, and the length of the concave surface 100-a is 2 CM to 5CM, and the distance between the end surface of the tube body 100 near the end inserted into the trachea and the nearest section of the concave surface 100-a is 4 CM to 6CM. That is, the length of the vocal cord section is 2-5CM, and the distance from one end of the vocal cord section to the top end of the tube body 100 is 4-6CM, because the adult tracheal intubation is generally performed by advancing 1-2 CM (about 5CM length is entered) after the adult tracheal intubation is generally out of sight of the air bag, so that the vocal cord section can well cover the glottis position when the tracheal intubation is correctly performed. In practice, different length models can be set according to different physiological structural characteristics of adults and children. In this embodiment, in order to secure biocompatibility of a portion contacting with human tissue, a silicone coating is coated on an end of the tube body 100 near the insertion into the trachea. In addition, in order to facilitate the insertion of the tube body 100, the end face of one end of the tube body 100 inserted into the trachea can be set to be an inclined plane, and a Murphy hole is arranged on the outer wall of the inclined plane tube body 100, and the Murphy hole is arranged to prevent the inclined plane of the tube body 100 from being completely attached to the inner wall of the trachea to block the gas channel. In order to facilitate the medical staff to know the insertion depth of the tube body 100, scale marks are arranged on the outer side wall of the tube body 100.

Preferably, in the present embodiment, one end of the tube body 100 is provided with a connector 200 communicating with the connector 200, and the connector 200 may be connected to a ventilator or an anesthesia machine to supply oxygen or medicine to a patient, and the connector 200 is a universal connector suitable for various ventilators. Oxygen enters the tube 100 via the connector 200 and then enters the patient's trachea for purposes of control and assisted breathing. An air bag 300 is arranged on the outer wall of the other end of the tube body 100, and the air bag 300 is used for abutting against the inner wall of the human trachea after the air bag 300 is inflated after the front end of the tube body 100 is inserted into the trachea, so that the tube body 100 is fixed. The balloon 300 is sleeved on the outer wall of one end of the tube body 100 away from the joint 200. The outer wall of one end of the tube body 100 is provided with an inflation tube 400, one end of the inflation tube 400 penetrates through the outer wall of the tube body 100 and then extends into the tube body 100 to be communicated with the air bag 300, the other end of the inflation tube 400 is provided with a pressing bag 500 for inflating the air bag 300, the other end of the pressing bag 500 is connected with a cap plug 510, the pressing bag 500 is arranged at the other end of the inflation tube 400, and the air bag 300 is inflated by pressing the pressing bag 500, so that the air bag 300 is inflated. A cap 510 is connected to one end of the pressing capsule 500, and the cap 510 is used to deflate the balloon 300 after the intubation is completed, so that the end of the tube body 100 inserted into the trachea can be taken out from the trachea. Preferably, in the present embodiment, the tube diameter of the inflation tube 400 is smaller than the tube diameter of the tube body 100, so that the space of the tube body 100 is not occupied as much as possible, and the connection end of the inflation tube 400 and the tube body 100 is disposed as far as possible from the end of the tube body 100 inserted into the air tube.

Referring to fig. 1 to 3, an endotracheal tube according to the present embodiment is specifically used as follows:

when the tracheal cannula is used, one end of the tube body 100 enters from the nasal cavity or the oral cavity, one end of the tube body 100 inserted into the trachea is inserted into the trachea through the glottis, then the positions of the tube body 100 at the two concave surfaces 100-a are respectively placed at the vocal cords at the two sides, then the air bag 300 is inflated through the pressing bag 500 and the inflation tube 400, and the air bag 300 is abutted against the inner wall of the trachea of a human body after being inflated, so that the tube body 100 is fixed. The trachea cannula improves the shape of the trachea cannula, the shape of the glottis section of the tube is changed into a cone shape, the shape of the tube body is matched with the glottis structure, the compression of a pipeline on the vocal cords is avoided in the intubation process and after the intubation, and the probability of the occurrence of vocal cord injury after the trachea cannula operation is reduced.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. An endotracheal tube, comprising:

the device comprises a tube body (100), wherein two mutually symmetrical concave surfaces (100-a) are arranged on the outer wall of one end, close to the inside of an inserted trachea, of the tube body (100), and the cross sections of the two concave surfaces (100-a) and the tube body (100) are conical;

one end of the pipe body (100) is provided with a connector (200) communicated with the pipe body, an air bag (300) is arranged on the outer wall of the other end of the pipe body (100), an air charging pipe (400) is arranged on the outer wall of one end of the pipe body (100), and one end of the air charging pipe (400) penetrates through the outer wall of the pipe body (100) and then extends into the pipe body (100) to be communicated with the air bag (300).

2. An endotracheal tube according to claim 1, wherein: the joint of the two concave surfaces (100-a) and the pipe body (100) is provided with arc chamfer angles.

3. An endotracheal tube according to claim 1, wherein: the cone shape has an angle a and an angle b, the angle a is 90-160 degrees, and the angle b is 45-80 degrees.

4. An endotracheal tube according to claim 1, wherein: the two concave surfaces (100-a) are arranged along the length direction of the pipe body (100), and the length of the concave surfaces (100-a) is 2-5CM.

5. An endotracheal tube according to claim 1, wherein: the distance between the end face of the pipe body (100) close to the end inserted into the trachea and the nearest section of the concave surface (100-a) is 4 CM to 6CM.

6. An endotracheal tube according to claim 1, wherein: one end of the tube body (100) close to the air tube is coated with a silica gel coating.

7. An endotracheal tube according to claim 1, wherein: the end face of one end of the pipe body (100) inserted into the trachea is an inclined plane, and a Murphy hole is formed in the outer wall of the inclined plane pipe body (100).

8. An endotracheal tube according to claim 1, wherein: scale marks are arranged on the outer side wall of the pipe body (100).

9. An endotracheal tube as claimed in any one of claims 1 to 8, wherein: the other end of the inflation tube (400) is provided with a pressing bag (500) for inflating the air bag (300), and the other end of the pressing bag (500) is connected with a cap plug (510).

10. An endotracheal tube according to claim 9, wherein: the pipe diameter of the inflation pipe (400) is smaller than that of the pipe body (100).

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