CN201643301U - An embedded multi-cavity diamond-shaped tube type endotracheal tube - Google Patents

Abstract

The utility model belongs to the field of medical devices, in particular to a tracheal catheter with embedded multi-hollow-cavity rhumbatrons, comprising an inner wall, an outer wall, an intermediate interlayer, a multi-hollow-cavity pipe passage and an air valve thereof, wherein the intermediate interlayer is arranged between the inner wall and the outer wall. The wall of the tracheal catheter is stretched by stretching the multi-hollow-cavity pipe passage to change the internal diameter and the external diameter of the tracheal catheter and the tracheal catheter can be more conveniently inserted so that the injure of an air flue can be lessened, the resistance of the air flue can be reduced and the care after an operation can be more convenient.

Description

An embedded multi-cavity diamond-shaped tube type endotracheal tube

technical field

The utility model relates to a medical device, in particular to a multi-cavity diamond-shaped tube type tracheal catheter embedded in it.

Background technique

In the hospital, inserting a tracheal tube into a patient to establish an artificial airway is an important method for ventilator support and an important technical means to protect the patient's airway. Intubation itself has certain technical difficulties and may cause mechanical damage to the patient's nasal mucosa and larynx. The larger the endotracheal tube, the more difficult it is to intubate and the greater the potential for injury. Therefore, for those patients who may have difficulty intubating, doctors tend to use a narrower endotracheal tube. However, if the diameter of the tube is too small, the direct consequences are high respiratory resistance, difficulty in suctioning sputum, easy blockage of the tube, and difficulty in postoperative airway care. From the perspective of respiratory support, it is desirable to insert the largest possible catheter into the patient.

This contradiction is particularly prominent in the following two situations: one is when performing nasal endotracheal intubation on adult patients. When the thickness of the catheter exceeds 7F, it will cause obvious nasal mucosal damage in most patients. Inserting a catheter smaller than 7F will significantly increase the respiratory resistance of the patient, which is not conducive to the patient's expectoration and airway care, and may therefore delay the patient's weaning time. Second, when the patient has tracheal stenosis caused by various reasons, such as tracheal tumors and scars, if the catheter is inserted too thick, not only may it not be possible to pass through the stenosis, but it may also cause airway mucosal damage and hemorrhage, which will seriously affect the life safety of the patient. threaten. However, if the inserted endotracheal tube is too thin, it is very unfavorable to provide ventilator support for the patient for a long time. Anesthesiologists are often in a dilemma when facing such patients.

Contents of the invention

The purpose of this utility model is to propose a structure model of a tracheal tube with variable diameter, which can reduce the difficulty of intubating the patient's trachea and airway damage, and at the same time reduce the airway resistance after intubation, and facilitate airway care.

In order to achieve the above object, the technical scheme of the utility model is as follows:

A trachea tube with variable diameter comprises an inner wall, an outer wall, an interlayer between the inner wall and the outer wall, a multi-cavity tube channel and a gas valve arranged in the interlayer.

In the aforementioned variable-diameter endotracheal tube, the cross-section of the multi-cavity tube channel is a plurality of connected rhombuses.

The aforementioned variable-diameter endotracheal tube, wherein: the folded surface of the multi-cavity tube channel is axially arranged along the inner wall.

In the aforementioned variable-diameter endotracheal tube, wherein: the middle interlayer is an elastic cavity along the circumferential direction of the inner wall, which communicates with the outside world through a small hole opened at the proximal end of the tube.

The aforementioned variable-diameter endotracheal tube, wherein: the inner wall and the outer wall are made of highly elastic materials.

The aforementioned variable-diameter endotracheal tube, wherein: the air outlet of the diamond-shaped multi-cavity tube passage is provided with an air valve.

In the aforementioned variable-diameter endotracheal tube, wherein: the cavities separated by the folded surfaces of the multi-cavity tube channel are in gas communication.

Due to the adoption of the above-mentioned technology, the utility model has a positive effect compared with the prior art: the variable-diameter endotracheal tube of the utility model makes endotracheal tube intubation easier by changing the inner and outer diameters of the endotracheal tube, reducing Airway mucosal injury, and reduce the airway resistance of postoperative ventilation, to facilitate airway care.

Description of drawings

Fig. 1 is a cross-sectional view of the variable-diameter endotracheal tube of the present invention before inflation.

Fig. 2 is a cross-sectional view of the inflated endotracheal tube with variable diameter of the present invention.

Detailed ways

Specific embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

Please refer to FIG. 1 , a variable-diameter endotracheal tube includes an inner wall 1 , an outer wall 2 , an interlayer 3 between the inner wall 1 and the outer wall 2 , and a multi-lumen tube channel 4 disposed in the interlayer. The middle interlayer 3 is an elastic cavity, which communicates with the outside world through the small hole opened at the proximal end of the catheter. The cross-section of the multi-cavity tube passage 4 is a plurality of connected rhombuses. The folded surfaces of the multi-cavity tube passage 4 are arranged axially along the inner wall 1 . The inner wall 1 and the outer wall 2 are high elastic materials. A gas valve is arranged at the gas outlet of the multi-cavity tube channel 4 . The gas in each diamond-shaped cavity of the multi-cavity tube passage 4 communicates. It can be seen from Figure 1 that the inner and outer diameters of the endotracheal tube are small, the diamond-shaped lumen of the multi-cavity tube channel 3 is closed, and the folding surfaces are close to each other. At this time, the patient is intubated, which is not easy to cause airway mucosal damage, and reduces the risk of intubation. Regardless of difficulty.

Please refer to FIG. 2 , after inflation, the diamond-shaped lumen of the multi-cavity tube passage 4 expands, the folded surfaces of the multi-cavity tube passage 4 move away from each other, and the diameters of the inner wall 1 and the outer wall 2 both increase. The diamond-shaped lumens communicate with each other through small holes to ensure that the gas pressure in each cavity is the same after inflation. The side length of the rhombus is basically constant before and after the folding mechanism stretches. After the patient is successfully intubated, the inner diameter of the catheter can be expanded to help reduce airway resistance and facilitate airway care.

The method for manufacturing a variable-diameter endotracheal tube as described above comprises the following steps:

Step 1: Use two extruders to extrude the inner wall, outer wall and middle interlayer with high elastic material respectively.

Step 2: The inner wall, the outer wall and the multi-cavity tube channel 4 arranged in the middle interlayer are directly compounded into an endotracheal tube through the compound handpiece.

Step 3: Cut off the above-mentioned composite pipe according to the required length, and connect it with the joints at both ends.

In the initial state, the inner and outer diameters of the tracheal tube are small, which is convenient for insertion into the patient's trachea, which can reduce the difficulty of intubation and reduce the airway damage of the patient; Inject fluid to increase the inner and outer diameters of the catheter at the same time to reduce airway resistance. When the endotracheal tube needs to be pulled out, the gas or liquid in the interlayer of the tube wall is drawn out, the inner and outer diameters of the tube become smaller again, and then pulled out.

The multi-cavity diamond-shaped tube-type tracheal catheter embedded in the utility model makes tracheal intubation easier by changing the inner and outer diameters of the tracheal catheter, reduces airway mucosal damage, and is beneficial to reduce airway resistance after intubation and facilitates airway care. .

The above-mentioned specific embodiments of the utility model are only for illustrating the technical solution of the utility model, and are only enumerations of the technical solution of the utility model, and are not used to limit the technical solution of the utility model and its protection scope. The use of equivalent technical means to improve the technical solutions disclosed in the claims and description of the utility model shall not exceed the scope disclosed in the claims and description of the utility model.

Claims (7)

1. embedded many cavitys rhombus tubular type endotracheal tube, comprise inwall (1), outer wall (2) and be positioned at and inwall (1), outer wall (2) between intermediate course (3), it is characterized in that: also comprise the many cavitys pipe path (4) that is arranged in the intermediate course (3).

2. embedded many cavitys rhombus tubular type endotracheal tube as claimed in claim 1, it is characterized in that: the cross section of described many cavitys pipe path (4) is the rhombus of a plurality of mutual linkings.

3. embedded many cavitys rhombus tubular type endotracheal tube as claimed in claim 1, it is characterized in that: the fold plane of described many cavitys pipe path (4) is axial arranged along inwall (1).

4. embedded many cavitys rhombus tubular type endotracheal tube as claimed in claim 1 is characterized in that: described intermediate course (3) is that its aperture by the catheter proximal end opening communicates with the external world along the elastic cavity of the circumferencial direction of inwall (1).

5. embedded many cavitys rhombus tubular type endotracheal tube as claimed in claim 1, it is characterized in that: described inwall (1) and outer wall (2) are highly elastic materials.

6. embedded many cavitys rhombus tubular type endotracheal tube as claimed in claim 1 is characterized in that: the place, gas outlet of described many cavitys pipe path (4) is provided with gas valve.

7. embedded many cavitys rhombus tubular type endotracheal tube as claimed in claim 1 is characterized in that: each cavity inside gas communication of described many cavitys pipe path (4).

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