CN208243887U - Ventilation is controllable, can reduce the double-cavity bronchial cannula of strong side intrapulmonary airway pressure - Google Patents

Abstract

The utility model discloses a double-lumen bronchial intubation tube with controllable ventilation and capable of reducing the airway pressure in the healthy side lung, which comprises a double-lumen tube inserted into the patient's airway, an air bag arranged on the double-lumen tube, and a tube connected to the double-lumen tube. The three-way connecting tube at the far end of the tube; the double-lumen tube is composed of a double-lumen tube main ventilation tube and a double-lumen tube secondary ventilation tube, and the inner diameters of the double-lumen tube main ventilation tube and the double-lumen tube secondary ventilation tube are different; The end is provided with a sealing cap. The utility model is novel and reasonable in design, high in safety, and simple in use, and can effectively perform bronchial intubation on patients. By designing the inner diameter of the ventilation tube on the healthy lung side of the double-cavity tube to be larger than the tube on the diseased lung side, it can reduce the The airway pressure of the healthy side lung during ventilation, implement protective lung ventilation on the healthy side lung; by setting the ventilation control valve on the side tube of the three-way connection tube, the doctor can close the three-way connection tube on the non-ventilation side through the ventilation control valve The side tube can effectively stop the breathing action of the non-ventilated side lung, which has high reliability and strong practicability.

Description

Double-lumen bronchial intubation with controlled ventilation and reduced airway pressure in the uninjured lung

technical field

The utility model belongs to the technical field of medical devices, in particular to a double-cavity bronchial intubation tube with controllable ventilation and capable of reducing the airway pressure in the healthy side lung.

Background technique

In the existing thoracic surgery, in order to provide the operator with a good view and other conditions, it is necessary to use a double-lumen bronchial intubation to perform single-lung controlled ventilation. The double-lumen bronchial intubation tube currently on the market is connected with a breathing tube through a Y-shaped three-way tube, and mechanically controlled ventilation is performed through an anesthesia ventilator. During the operation, use surgical forceps to clamp the connecting tube on the surgical side as needed, thereby blocking the breathing of the lung on the surgical side, and maintaining normal ventilation of the lung on the non-operative side to meet the ventilation function of the patient's body.

At present, the double-lumen bronchial intubation provided in the market can only be intubated with a tracheal intubation laryngoscope through the oral cavity, and there are still the following problems: 1. For special difficult airways, such as small mouth opening, difficulty in head and neck movement, etc. Patients who are difficult to insert the laryngoscope or whose glottis is difficult to expose after insertion cannot insert a double-lumen bronchial tube for one-lung ventilation; if a light stick is used to guide the intubation, the distal end of the double-lumen bronchial tube is too long to The commercially available optical rod is not long enough to perform endotracheal intubation, and the excessively long tube increases unnecessary mechanical dead space; When the healthy side lung is ventilated during one-lung ventilation surgery, the airway pressure will be relatively high, and the affected lung often does not need to be ventilated or high-frequency ventilation is performed, compared with the affected lung. In general, the healthy side lung needs a larger lumen to reduce the airway pressure and perform protective ventilation on the healthy side lung; 3. The Y-shaped tee tube is too long, which increases the amount of mechanical dead space; 4. Single lung During ventilation, surgical forceps are needed to clamp the lumen, which is inconvenient to operate. 5. The body of the double-lumen bronchial intubation tube is separated from the body of the Y-shaped three-way tube, which is complicated to operate and easy to fall off, posing certain safety hazards.

Therefore, there is a lack of a novel and reasonable design, simple structure, high safety, and simple method of use, which can effectively perform bronchial intubation on patients, by designing the ventilation pipeline diameter of the healthy lung side of the double-lumen tube to be larger than that of the diseased patient. The lung side tube can reduce the airway pressure of the healthy side lung during ventilation, and implement protective lung ventilation on the healthy side lung; the two side tubes of the Y-shaped three-way tube are fixedly connected to the double-lumen tube On the one hand, it can ensure the stability of the connection between the Y-shaped three-way tube and the double-lumen tube, and avoid endangering the life of the patient after the Y-shaped three-way tube falls off accidentally; by setting the ventilation control valve on the side tube of the three-way connecting tube, the doctor can The ventilation control valve closes the tee connection tube side tube on the non-ventilated side, thereby effectively stopping the breathing action of the non-ventilated side lung.

Utility model content

The technical problem to be solved by the utility model is to provide a double-lumen bronchial intubation tube with controllable ventilation and lower airway pressure in the uninjured lung, which has novel and reasonable design, simple structure and safety It is highly reliable and easy to use, and can effectively intubate the patient's bronchus. By designing the diameter of the ventilation pipeline on the healthy lung side of the double-lumen tube to be larger than the pipeline on the diseased lung side, the airway during ventilation of the healthy lung can be reduced. Protective lung ventilation for the uninjured lung; by fixing the two side tubes of the Y-shaped three-way tube to the double-lumen tube, the connection between the Y-shaped three-way tube and the double-lumen tube can be ensured. Stability, avoiding the accidental fall of the Y-shaped three-way tube and endangering the patient's life; by setting the ventilation control valve on the side tube of the three-way connection tube, the doctor can close the side tube of the three-way connection tube on the non-ventilation side through the ventilation control valve, Therefore, the breathing action of the non-ventilated side lung is effectively stopped, the reliability is high, the practicability is strong, and it is convenient to popularize and use.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a double-lumen bronchial intubation tube with controllable ventilation and can reduce the airway pressure in the healthy side lung, which is characterized in that: it includes a double-lumen tube inserted into the airway of the patient, and The air bag on the double-lumen tube and the three-way connection tube connected to the distal end of the double-lumen tube; The inner diameters of the main ventilation tube of the tube and the secondary ventilation tube of the double-lumen tube are different; The main bronchial air bag is connected with a main bronchial air bag inflation valve, and the main airway air bag is connected with a main airway air bag inflation valve, and the main bronchial air bag inflation valve and the main airway air bag inflation valve are both arranged on The outer side of the far end; the three-way connecting pipe is a Y-shaped three-way pipe, and the Y-shaped three-way pipe includes a three-way connecting pipe main pipe, two three-way connecting pipe sides fixedly connected to the distal side of the double-lumen tube The side tube of the three-way connection tube is provided with a ventilation control valve, and the distal end of the double-lumen tube is provided with a sealing cap.

The above-mentioned double-lumen bronchial intubation tube with controllable ventilation and capable of reducing airway pressure in the uninjured lung is characterized in that: the double-lumen tube and the three-way connecting tube are designed as one body and connected internally.

The above-mentioned double-lumen bronchial intubation tube with controllable ventilation and capable of reducing airway pressure in the uninjured lung is characterized in that: the length of the side tube of the three-way connecting tube is 1 cm to 1.5 cm.

The above-mentioned double-lumen bronchial intubation with controllable ventilation and capable of reducing the airway pressure in the uninjured lung is characterized in that: the part of the double-lumen main ventilator and the double-lumen auxiliary ventilator inserted into the airway is designed as one, so The distal part of the double-lumen tube main ventilation tube and the double-lumen tube secondary ventilation tube located outside the oral cavity are two separate connecting tubes, and the length of the connecting tubes is 1 cm to 1.2 cm.

Compared with the prior art, the utility model has the following advantages:

1. The utility model designs two types of double-lumen tubes. In the first type of double-lumen tube, the inner diameter of the main ventilation tube of the double-lumen tube is larger than the inner diameter of the secondary ventilation tube of the double-lumen tube, and is used on the side of the main ventilation tube of the double-lumen tube. When the lung is a healthy side lung, the inner diameter of the main ventilation tube of the double-lumen tube in the second type of double-lumen tube is smaller than the inner diameter of the secondary ventilation tube of the double-lumen tube. Such a design can reduce the airway pressure during ventilation of the healthy side lung, and can perform protective lung ventilation on the healthy side lung. The principle is simple, and it is easy to popularize and use.

2. The utility model fixedly connects the side pipes of the two three-way connecting pipes of the Y-shaped three-way pipe to the side of the distal end of the double-lumen pipe. This design can ensure the stability of the connection between the Y-shaped three-way pipe and the double-lumen pipe. It effectively prevents the potential safety hazard caused by the Y-shaped three-way tube falling off on the double-lumen tube, and avoids endangering the life of the patient after the Y-shaped three-way tube accidentally falls off. It is reliable and stable, and has a good use effect.

3. The design of the utility model is novel and reasonable. By setting the ventilation control valve on the side tube of the three-way connection tube, when the patient needs to perform one-lung ventilation during the operation, the doctor can close the three-way connection tube on the non-ventilation side through the ventilation control valve. The side tube can effectively stop the breathing action of the non-ventilated side lung, which is convenient for doctors to implement the operation, and has high operation safety, simple method of use, strong practicability, and is convenient for popularization and use.

In summary, the utility model is novel and reasonable in design, simple in structure, high in safety, and simple in use, and can effectively perform bronchial intubation on patients. The side tube can reduce the airway pressure of the healthy side lung during ventilation, and implement protective lung ventilation on the healthy side lung; the side tube of the two three-way connecting tubes of the Y-shaped three-way tube is fixedly connected to the double-lumen tube , can ensure the stability of the connection between the Y-shaped three-way tube and the double-lumen tube, and avoid endangering the life of the patient after the Y-shaped three-way tube falls off accidentally; The control valve closes the side pipe of the three-way connection tube on the non-ventilated side, thereby effectively stopping the breathing action of the non-ventilated side lung, which has high reliability, strong practicability, and is convenient for popularization and use.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Explanation of reference signs:

1—the main pipe of the three-way connecting pipe; 2—the side pipe of the three-way connecting pipe; 4—ventilation control valve;

5—Sealing cap; 6—Connecting pipe; 7—Double-lumen main ventilation pipe;

8—double-lumen auxiliary ventilator; 9—main airway air bag; 11—main bronchial air bag;

13—main bronchial air bag inflation valve; 14—main airway air bag inflation valve.

Detailed ways

As shown in Figure 1, the utility model includes a double-lumen tube inserted into the patient's airway, an air bag arranged on the double-lumen tube, and a three-way connection tube connected to the distal end of the double-lumen tube; the double-lumen tube It consists of a double-lumen tube main ventilation tube 7 and a double-lumen tube secondary ventilation tube 8. The inner diameters of the double-lumen tube main ventilation tube 7 and the double-lumen tube secondary ventilation tube 8 are different; The main bronchial air bag 11 on the trachea 7 and the main airway air bag 9 arranged on the double-lumen tube auxiliary ventilation tube 8 are composed, the main bronchial air bag 11 is communicated with the main bronchial air bag inflation valve 13, and the main airway air bag 9 is communicated with There is a main airway air bag inflation valve 14, and the main bronchus air bag inflation valve 13 and the main airway air bag inflation valve 14 are all arranged on the far-end outside of the double-lumen tube; the three-way connecting pipe is a Y-shaped three-way pipe , the Y-shaped three-way pipe includes a three-way connecting pipe main pipe 1, two three-way connecting pipe side pipes 2 fixedly connected to the side of the distal end of the double-lumen pipe, and the three-way connecting pipe side pipe 2 is provided with Ventilation control valve 4, the distal end of the double lumen tube is provided with a sealing cap 5.

In actual use, the double-lumen tube is of two types. In the first type of double-lumen tube, the inner diameter of the dual-lumen tube main ventilation tube 7 is larger than the inner diameter of the double-lumen tube auxiliary ventilation tube 8, which is used for the double-lumen tube main ventilation tube. In the case that the 7th lung is a healthy side lung, the inner diameter of the double-lumen tube main ventilation tube 7 in the second type of double-lumen tube is smaller than the inner diameter of the double-lumen tube secondary ventilation tube 8, and the 8-side lung of the double-lumen tube secondary ventilation tube is healthy In the case of the side lung, such a design can reduce the airway pressure during ventilation of the healthy side lung, and can implement protective lung ventilation to the healthy side lung; Fixedly connected to the side of the distal end of the double-lumen tube, such a design can ensure the stability of the connection between the Y-shaped three-way tube and the double-lumen tube, effectively preventing the Y-shaped three-way tube from The potential safety hazard caused by falling off on the cavity tube avoids endangering the life of the patient due to the accidental fall off of the Y-shaped three-way pipe; by setting the ventilation control valve 4 on the side pipe 2 of the three-way connecting pipe, the patient needs to When performing one-lung ventilation, the doctor can close the three-way connection tube side tube 2 on the non-ventilated side through the ventilation control valve 4, thereby effectively stopping the breathing action of the non-ventilated side lung, which is convenient for the doctor to perform the operation, and the operation safety is high , easy to use.

As shown in FIG. 1 , in this embodiment, the double-lumen tube and the three-way connecting tube are designed as one body and connected internally.

In actual use, by designing the double-lumen tube and the three-way connecting tube as one, the safety hazard caused by the three-way connecting tube falling off on the double-lumen tube is effectively prevented, and the safety hazard caused by the three-way connecting tube is avoided. The above-mentioned three-way connecting pipe falls off accidentally and endangers the life of the patient.

As shown in FIG. 1 , in this embodiment, the length of the side pipe 2 of the tee connection pipe is 1 cm to 1.5 cm.

In actual use, by setting the length of the side pipe 2 of the three-way connection pipe to 1 cm to 1.5 cm, the mechanical dead space of the three-way connection pipe is effectively reduced, ensuring better medical effects.

As shown in Figure 1, in this embodiment, the part of the double-lumen tube main ventilation tube 7 and the double-lumen tube secondary ventilation tube 8 inserted into the airway is designed as one, and the double-lumen tube main ventilation tube 7 and the double-lumen tube The part of the distal end of the auxiliary ventilation tube 8 outside the oral cavity is two separate connecting tubes 6, and the length of the connecting tubes 6 is 1 cm-1.2 cm.

In actual use, by setting the length of the connecting tube 6 to 1 cm to 1.2 cm, for patients with special difficult airways, such as small mouth opening, difficult head and neck movement, etc., it is difficult to insert the tracheal intubation laryngoscope or For patients whose glottis is difficult to expose, it is impossible to insert a double-lumen bronchial tube for one-lung ventilation with the help of a tracheal intubation laryngoscope; the light stick can be used to guide the intubation, and the length of the connecting tube 6 is too long, which will cause the commercially available light stick After insertion, the length is not enough to perform endotracheal intubation, and the excessively long tube will increase unnecessary mechanical dead space.

When the utility model is in use, first select the bronchial intubation of the first double-lumen tube or the second double-lumen tube according to the specific illness of the patient's lungs, when the patient's double-lumen tube main ventilation tube 7 side lungs When the healthy side lung is selected, the first double-lumen tube is selected. When the patient’s double-lumen tube auxiliary ventilation tube 8 side lung is the healthy side lung, the second double-lumen tube is selected. When using, first open the sealing cap 5 to turn off the light. The rod is inserted into the bronchial intubation tube through the double-lumen main ventilation tube 7, and then under the guidance of the light rod, the bronchial intubation tube is inserted into the airway and bronchi of the patient, and then the sealing cap 5 is tightly closed, and the air bag inflation valve of the main bronchi is passed 13 Inflate the main bronchus airbag 11, inflate the main airway airbag 9 through the main airway airbag inflation valve 14, and then connect the ventilator through the three-way connecting tube to ensure the normal respiratory function of the patient. , one-lung ventilation can be implemented only by closing the ventilation control valve 4 on the corresponding side in the normally open state until the operation is completed.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (4)

1. ventilation is controllable, can reduce the double-cavity bronchial cannula of strong side intrapulmonary airway pressure, it is characterised in that: including being inserted into patient's gas Double lumen tube in road, the air bag being arranged on the double lumen tube and the three-limb tube for being connected to the dual lumen tube distal end；It is described Double lumen tube is made of double lumen tube main channel (7) and double lumen tube auxiliary ventilating pipe (8), the double lumen tube main channel (7) and two-chamber The internal diameter of pipe auxiliary ventilating pipe (8) is different；The air bag is by the main bronchus air bag (11) that is arranged on double lumen tube main channel (7) With main airway air bag (9) composition being arranged on double lumen tube auxiliary ventilating pipe (8), the main bronchus air bag (11) is communicated with main branch Tracheal balloon charge valve (13), the main airway air bag (9) are communicated with main airway air chamber gas charging valve (14), the main bronchus gas Capsule charge valve (13) and main airway air chamber gas charging valve (14) are arranged at the distal exterior of the double lumen tube；The three-limb tube For breeches pipe, the breeches pipe includes three-limb tube supervisor (1), is fixedly connected on the dual lumen tube distal end side Two three-limb tube side pipes (2) are provided with breather valve (4) on the three-limb tube side pipe (2), the double lumen tube Distal end is provided with seal cap (5).

2. ventilation described in accordance with the claim 1 is controllable, can reduce the double-cavity bronchial cannula of strong side intrapulmonary airway pressure, feature Be: the double lumen tube is integrated with three-limb tube design and inside is connected to.

3. ventilation described in accordance with the claim 1 is controllable, can reduce the double-cavity bronchial cannula of strong side intrapulmonary airway pressure, feature Be: the length of the three-limb tube side pipe (2) is 1cm~1.5cm.

4. ventilation described in accordance with the claim 1 is controllable, can reduce the double-cavity bronchial cannula of strong side intrapulmonary airway pressure, feature Be: the part design in the double lumen tube main channel (7) and double lumen tube auxiliary ventilating pipe (8) insertion air flue is integrated, described It is two separated connecting tubes that the distal end of double lumen tube main channel (7) and double lumen tube auxiliary ventilating pipe (8), which is located at extrabuccal part, (6), the length of the connecting tube (6) is 1cm~1.2cm.