CN206103101U - A T type pipe for $expanding tracheal stenosis - Google Patents

Abstract

The utility model discloses a T-shaped tube for dilating tracheal stenosis, which comprises a horizontal tube and a vertical tube connected to each other and integrated, and N air bags are evenly distributed on the outside of the vertical tube; wherein, N is an even number. The T-shaped tube for expanding tracheal stenosis expands the air bag by pressurizing the air bag, and adjusts the width of the T-shaped tube through the degree of expansion of the air bag, so that the T-shaped tube of the same specification can meet the trachea with different narrow inner diameters, which is conducive to mass production. In addition, the airbags distributed on the outside of the standpipe are divided into two groups, and the airbags arranged at intervals form a group, and the two pairs are connected in a staggered manner. Each group can be pressurized and inflated by a one-way inflation valve at the same time. Sustained pressure, so as to avoid mucous membrane necrosis due to pressure ischemia.

Description

A T-shaped tube for dilating tracheal stenosis

technical field

The utility model relates to a T-shaped tube, in particular to a T-shaped tube for expanding trachea stenosis, which belongs to the technical field of medical instruments.

Background technique

Laryngeal and tracheal stenosis is the narrowing of the laryngotracheal cavity caused by the defect of the larynx and trachea or the hyperplasia of scar tissue caused by various reasons. Laryngotracheal stenosis can affect breathing and vocalization, leading to dyspnea and, in severe cases, cyanosis or suffocation.

For general laryngotracheal stenosis, tracheal balloon dilation or tracheal stent placement is often used clinically to enlarge the stenosis. Tracheal balloon dilation needs to completely block the air. In order to ensure the ventilation of the patient's lungs, the time of each expansion can generally be controlled within more than ten seconds, and the front end of the balloon dilator currently used to penetrate into the trachea is closed. Yes, during treatment, the balloon dilator is introduced into the narrowed part of the trachea, and then high-pressure normal saline is pumped in to expand the balloon. At this time, the expanded balloon will completely block the trachea, resulting in hypoxia and mechanical asphyxia of the patient. , There is a great risk; after this temporary expansion, once the stent is removed, stenosis will soon occur again.

Laryngotracheal stent placement is generally done by endotracheal T-tube placement. Endotracheal T-tube placement is a common surgical method to solve laryngotracheal stenosis. Select the corresponding type of T-tube and place it into the Into the lumen of the larynx and trachea to support the dilated trachea and solve dyspnea.

However, the existing T-tubes mainly have the following disadvantages:

1) The shape of the T tube is fixed, and personalized and real-time treatment cannot be achieved. In fact, different individuals have different tracheal diameters and different degrees of stenosis. Even for the same person, the degree of stenosis is also different during the treatment process. During the operation, choose the corresponding type of T tube. Generally, the doctor needs to make judgments based on experience. The diameter of the T tube should not be too thick, otherwise it will be difficult to place; the diameter of the T tube should not be too thin, otherwise it will not be able to expand . Therefore, it is often necessary to reserve multiple T-tubes of different specifications before the operation, so that they can be selected for use during the operation. Due to differences in doctors' experience levels and subjective judgments, it may be necessary to try multiple T-tubes with different diameters during the operation to find a suitable T-tube to complete the operation. However, repeated T-tube placement also caused unnecessary pain and trauma to the patient, which virtually increased the risk of surgery. In addition, for different stages of the treatment of the same patient, the traditional T-tube needs to be replaced and adjusted differently, which also brings pain and inconvenience to the patient.

2) The material of the existing T-tube is silica gel. The inner diameter of the T-tube made of silica gel is almost the same as that of the trachea. Continuous compression of the trachea may lead to ischemia of the tracheal mucosa, which in turn leads to mucosal scarring, and the T-tube directly contacts the mucous membrane of the trachea for a long time. May stimulate granulation growth. After the T-tube is removed after the operation, the scar contracture of the inner wall of the trachea will lead to restenosis of the laryngeal cavity, which will make it difficult to extubate. In addition, the continuous compression of traditional hard silicone is easy to form new scars, and the incidence of restenosis after extubation is high.

Therefore, there is an urgent need for a T-shaped tube for dilating tracheal stenosis that is easy to be placed in the trachea and can effectively compress without causing ischemia and necrosis of the tracheal mucosa.

Contents of the invention

Aiming at the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a T-shaped tube for dilating tracheal stenosis.

To achieve the above object, the utility model adopts the following technical solutions:

A T-shaped tube for dilating tracheal stenosis, comprising a horizontal tube and a vertical tube interconnected and integrated, and N airbags are evenly distributed on the outside of the vertical tube; wherein, N is an even number.

Wherein preferably, the airbags are arranged in vertical strips along the direction of the vertical pipe.

Preferably, the T-shaped tube for dilating tracheal stenosis further includes a first inflation tube, a first one-way inflation valve, a second inflation tube, and a second one-way inflation valve;

The first one-way inflation valve is arranged at the upper end of the first inflation tube;

The second one-way inflation valve is arranged at the upper end of the second inflation tube.

Preferably, the airbags distributed outside the standpipe are divided into two groups, and the airbags arranged at intervals form a group, which are connected to the one-way inflation valve through an inflation tube, and the airbags are connected to the one-way inflation valve through the one-way inflation valve The airbags arranged at intervals are inflated simultaneously.

Preferably, the two groups of airbags are alternately inflated through the one-way inflation valve.

Preferably, the airbag is made of silicone material, and a layer of nanomaterials is attached to the outer surface of the airbag.

Preferably, the horizontal tube is located at a position about 1/3 from the top of the vertical tube to the top of the vertical tube.

Wherein preferably, both the horizontal pipe and the vertical pipe are hollow cylinders.

Wherein preferably, a reinforcing pipe is arranged inside the vertical pipe.

Wherein preferably, the reinforcing pipe inside the vertical pipe adopts a steel wire threaded pipe.

The utility model provides a T-shaped tube for dilating tracheal stenosis. A plurality of airbags are respectively arranged around the standpipe, and the airbags are expanded by pressurizing the airbags. The T-shaped tubes of the specifications meet the requirements of air tubes with different narrow inner diameters within a certain range, which is conducive to mass production. In the case of deflation of the balloon of the T-tube, it is easier to put the T-tube into the trachea, and it can also reduce the pain and trauma to the patient caused by repeated surgical operations. In addition, multiple airbags are connected in pairs, and each group can be pressurized and inflated by a one-way inflation valve at the same time. Alternate pressurization can prevent the same part of the mucous membrane from being continuously compressed, thereby avoiding ischemia and necrosis of the mucous membrane due to compression.

Description of drawings

Fig. 1 is the structural representation of the T-shaped tube used for expanding tracheal stenosis provided by the utility model;

Fig. 2 is a structural schematic diagram of a top view of a T-shaped tube for dilating tracheal stenosis provided by the present invention.

detailed description

The technical content of the present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, the T-shaped tube used to expand the stenosis of the trachea provided by the utility model includes a horizontal tube 1 and a vertical tube 2 that are interconnected and integrated. The horizontal tube 1 is located at the top of the vertical tube 2 and is about 1 At the position of /3, both the horizontal tube 1 and the vertical tube 2 are hollow cylinders, and the inner diameters of the horizontal tube 1 and the vertical tube 2 are the same. A reinforcing tube that withstands collapse under external pressure is provided on the inner side of the standpipe 2 to prevent deformation and collapse of the T-tube under pressure, so as to keep the inner cavity of the T-tube well ventilated. In the embodiment provided by the utility model, the reinforcing tube inside the standpipe 2 adopts a steel wire threaded tube. The standpipe 2 adopts very strong latex to keep the inner wall from deforming under pressure and ensure the air flow of the T-tube.

N airbags are evenly distributed outside the standpipe 2, wherein N is an even number, and N is preferably 2-6. The airbag is arranged in a vertical strip along the direction of the vertical pipe 2 .

In the embodiment provided by the present invention, 4 is taken as an example for illustration. As shown in FIG. 2 , the first airbag 3 , the second airbag 4 , the third airbag 5 and the fourth airbag 6 are evenly distributed outside the standpipe 2 . The first airbag 3, the second airbag 4, the third airbag 5, and the fourth airbag 6 are arranged in vertical strips along the direction of the vertical tube 2, and the airbags are arranged in vertical strips at intervals, which can not completely block the endotracheal mucosa blood backflow. Wherein, the first air bag 3 and the third air bag 5 are a group, connected with the second one-way inflation valve 7 provided on the top of the first inflation tube through the first inflation tube (not shown in the figure), and through the first one-way inflation The valve 7 inflates the first airbag 3 and the third airbag 5 simultaneously to expand the first airbag 3 and the third airbag 5 to meet the required width of the T tube. The second airbag 4 and the fourth airbag 6 are a group, connected with the second one-way inflation valve 8 provided on the top of the second inflation tube through the second inflation tube (not shown in the figure), and the second one-way inflation valve 8 Inflate the second airbag 4 and the fourth airbag 6 simultaneously to expand the second airbag 4 and the fourth airbag 6, and adjust the width of the T-shaped tube by the degree of expansion of the airbag to meet the required width of the T-tube. The 4 airbags are divided into two groups, each pair of which is staggered and communicated with each other. Each group can be pressurized and inflated by a one-way inflation valve at the same time. Alternate pressurization can prevent the same part of the mucous membrane from being continuously oppressed, thereby avoiding ischemia and necrosis of the mucous membrane due to oppression. The first airbag 3 , the second airbag 4 , the third airbag 5 and the fourth airbag 6 all use silicone material, and a layer of nanometer material is attached to the outer surface of the airbag. The silicone material has good toughness and strength, which can make the airbag reach the required width of the trachea after the airbag is inflated, and ensure that the airbag will not be broken by the inflated gas. The outer surface of the airbag can be attached with nanomaterials, such as nano-silver, etc.; to increase the smoothness of the airbag and reduce the adsorption of sputum scab. In addition, when the airbag is inflated, the one-way inflation valve can be used to adjust the pressure, realize intermittent inflation, and achieve individualized and timely treatment for different patients or different disease stages of the same patient.

According to the needs of the operation and the diameter of the standpipe 2, 2 or 6 airbags can be provided. When there are 2 airbags, the two airbags are evenly distributed on the outside of the standpipe 2 and arranged along the direction of the standpipe 2. into vertical strips. Each airbag is connected to the one-way inflation valve set on the upper part of the inflation tube through an inflatable tube, and the two airbags are alternately inflated through the one-way inflation valve, and the two airbags are intermittently expanded to eliminate mucosal ischemia and necrosis after continuous pressure , causing scar hyperplasia and restenosis.

When there are 6 airbags, the 6 airbags are evenly distributed on the outside of the standpipe 2 and arranged in vertical strips along the direction of the standpipe 2 . A group of three airbags arranged at intervals is connected to the one-way inflation valve set on the upper part of the inflation tube through an inflation tube, and the two groups of airbags are alternately inflated through the one-way inflation valve, and the two groups of airbags are intermittently expanded to eliminate continuous Mucosa ischemic necrosis after compression, causing scar hyperplasia and restenosis.

The following is a detailed description of the use of the T-tube used to dilate the tracheal stenosis during the operation.

When the T-shaped tube is put into the trachea, the air bag of the T-shaped tube is fully deflated, so that the diameter of the T-shaped tube is smaller and the deflation of the trachea is easier. After putting into the trachea, according to the diameter of the trachea, the first one-way inflation valve 7 inflates the first airbag 3 and the third airbag 5 through the first inflation tube to expand the first airbag 3 and the third airbag 5 . The first airbag 3 and the third airbag 5 jointly make the diameter of the T-shaped tube meet the diameter required by the trachea. Since the airbags are arranged in vertical strips at intervals, the blood return of the mucous membrane in the trachea can not be completely blocked. After the working time threshold, the second one-way inflation valve 8 inflates the second airbag 4 and the fourth airbag 6 through the second inflation tube, so that the second airbag 4 and the fourth airbag 6 are inflated, and the second airbag 4 and the fourth airbag 6 are inflated. When the degree of expansion of the first air bag 3 and the third air bag 5 are the same, the pressurization is stopped. At the same time, the first airbag 3 and the third airbag 5 are deflated. After the working time threshold, the first airbag 3 and the third airbag 5 are inflated, the second airbag 4 and the fourth airbag 6 are deflated, and pressurized alternately until the end of the operation. It can prevent the mucous membrane of the same part from being continuously oppressed, so as to avoid ischemia and necrosis of the mucous membrane due to oppression. Wherein, the time threshold can be set according to the needs of the operation.

To sum up, in the T-shaped tube for dilating tracheal stenosis provided by the utility model, the first air bag 3, the second air bag 4, the third air bag 5 and the fourth air bag 6 are respectively arranged around the standpipe 2, and by giving The airbag is pressurized to expand the airbag, and the width of the T-shaped tube is adjusted through the degree of expansion of the airbag. In the embodiment provided by the utility model, a T-tube of uniform specification in a larger range can be basically realized through the adjustment of the degree of expansion of the airbag. For example, it can be made into three specifications: tubes with three internal diameters suitable for children, suitable for adult men and suitable for adult women, because the adjustment of the degree of inflation of the airbag can make the T-shaped tube of the same specification meet certain requirements. Trachea with different narrow inner diameters in the range, which is conducive to mass production. Moreover, in the case of deflation of the balloon of the T-tube, it is easier to put the T-tube into the trachea, which can also reduce the pain and trauma to the patient caused by repeated surgical operations. In addition, the first airbag 3 and the third airbag 5 form a group, the second airbag 4 and the fourth airbag 6 form a group, and they communicate with each other. Each group can be pressurized and inflated by a one-way inflation valve at the same time. Pressurization can keep the same part of the mucous membrane from being continuously compressed, thereby avoiding ischemia and necrosis of the mucous membrane due to compression.

The T-shaped tube for dilating tracheal stenosis provided by the present invention has been described in detail above. For those skilled in the art, any obvious changes made to the utility model without departing from the essential spirit of the utility model will constitute an infringement of the utility model patent and will bear corresponding legal responsibilities.

Claims (10)

1. a kind of T-shaped pipe for expanding tracheal stenosises, including all-in-one-piece transverse tube and the vertical tube of being interconnected, it is characterised in that：

N number of air bag is uniformly distributed on the outside of the vertical tube；Wherein, N is even number.

2. it is used to as claimed in claim 1 expand the T-shaped pipe of tracheal stenosises, it is characterised in that：

The air bag is arranged to vertical bar shape each along the direction of the vertical tube.

3. the as claimed in claim 1 T-shaped pipe for being used to expand tracheal stenosises, it is characterised in that also including the first gas tube, the One unidirectional charge valve, the second gas tube, the second unidirectional charge valve；

The first unidirectional charge valve is arranged on the first gas tube upper end；

The second unidirectional charge valve is arranged on the second gas tube upper end.

4. it is used to as claimed in claim 3 expand the T-shaped pipe of tracheal stenosises, it is characterised in that：

The air bag that the outside of the vertical tube is distributed is divided into into two groups, spaced air bag constitutes one group, by a gas tube It is connected with unidirectional charge valve, is inflated simultaneously to the spaced air bag by the unidirectional charge valve.

5. it is used to as claimed in claim 4 expand the T-shaped pipe of tracheal stenosises, it is characterised in that：

Alternately it is inflated to two groups of air bags by unidirectional charge valve.

6. it is used to as claimed in claim 1 expand the T-shaped pipe of tracheal stenosises, it is characterised in that：

The air bag adopts silicone material, and in the outer surface of the air bag one layer of nano material is adhered to.

7. it is used to as claimed in claim 1 expand the T-shaped pipe of tracheal stenosises, it is characterised in that：

The transverse tube is located at the vertical tube top apart from the position of top about vertical tube 1/3.

8. it is used to as claimed in claim 7 expand the T-shaped pipe of tracheal stenosises, it is characterised in that：

The transverse tube and the vertical tube are hollow cylinder.

9. it is used to as claimed in claim 7 expand the T-shaped pipe of tracheal stenosises, it is characterised in that：

Reinforced pipe is provided with the inside of the vertical tube.

10. it is used to as claimed in claim 9 expand the T-shaped pipe of tracheal stenosises, it is characterised in that：

Reinforced pipe on the inside of the vertical tube adopts steel wire corrugated tubing.