CN106110462A - Single cavity double sac bronchial cannula - Google Patents

Abstract

A single-lumen double-balloon bronchial intubation tube belongs to the technical field of medical device tracheal intubation, including a tracheal tube, a catheter connector, a tracheal cuff, a bronchial tube, a bronchial cuff, and a tracheal cuff inflation valve. The tracheal cuff and the bronchial cuff One side of the endotracheal tube between them is provided with a side hole for the endotracheal tube, the bronchial tube in the bronchial cuff is provided with a side hole for the bronchial tube, and the side hole of the bronchial tube is provided with an elastic membrane, and the elastic membrane is placed in the bronchial cuff When inflated, it can be indented inwardly against the inner wall of the bronchial tube, thereby sealing the bronchial tube. The advantage is: using single-chamber double-bags to achieve the lung isolation effect of single-chamber three-bags, the inner diameter can be made into different specifications such as 3.0-10.0mm, which not only effectively reduces the harm to patients caused by intubation, but also greatly reduces the difficulty of production. It can be used not only for unilateral ventilation, but also for bilateral ventilation. The most important thing is that it can be used for single-lung ventilation in adult and infant surgery at the same time, which greatly improves the general performance.

Description

Single-lumen double-bag bronchial intubation

technical field

The invention belongs to medical appliances, in particular to a bronchial insert, which is mainly used for one-lung ventilation required for lung isolation in thoracic surgery for adults and children.

Background technique

Due to the rapid development of minimally invasive techniques, more and more thoracic surgeries require unilateral lung ventilation. At present, single-lung ventilation is usually isolated with a double-lumen bronchial catheter. The diameter of the double-lumen tracheal intubation tube is relatively large, so it is difficult to operate. It is easy to cause respiratory complications. In addition, for infants and young children, because the trachea for breathing is relatively thin, thicker intubation tubes cannot be inserted. There are also single-lumen bronchial tubes in current products, but this single-lumen bronchial tube requires both To achieve two-way ventilation and one-way ventilation, an air bag must be added in the bronchi to block the bronchi to achieve one-way ventilation. At present, the inner diameter of this kind of intubation tube is greater than 6.5mm, and the air bag cannot be installed in the tube smaller than 6.5mm Therefore, it is impossible to produce, which eventually leads to no available tubes for infants and young children; it cannot meet the clinical needs, so it is necessary to develop a simple and easy operation, easy to manufacture, less clinical complications, and can meet the needs of patients of different ages for one-lung ventilation. endotracheal intubation.

Contents of the invention

The problem to be solved by the present invention is to provide a bronchial intubation tube capable of both lung ventilation and single-lung ventilation, with catheter inner diameters ranging from 3.0 mm to 10.0 mm, which can be used by adults and infants at the same time.

In order to solve the above problems, the technical solution adopted in the present invention is: a single-lumen double-balloon bronchial intubation tube, including a tracheal catheter, a catheter connector, a tracheal cuff, a bronchial catheter, a bronchial cuff, a tracheal cuff inflation valve, and a bronchial cuff inflation valve , the endotracheal tube is provided with a scale, one side of the endotracheal tube between the endotracheal cuff and the bronchial cuff is provided with a side hole for the endotracheal tube, the endotracheal tube in the bronchial cuff is provided with a side hole for the endotracheal tube, the bronchial tube An elastic film is provided on the side hole of the catheter, and the elastic film can be inwardly depressed to be close to the inner wall of the bronchial catheter when the bronchial cuff is inflated, thereby closing the bronchial catheter, and the tracheal cuff communicates with the inflatable tube of the tracheal cuff, The bronchial cuff communicates with the bronchial cuff inflation tube.

Further, the inner diameter of the endotracheal tube is 3.0-10.0 mm. Since the current single-lumen bronchial tube is provided with a balloon in the tube lumen, a side hole is designed on the tube wall in the main bronchial cuff and sealed with an elastic membrane. Therefore, the bronchi can be made thinner, and it is difficult to use the current single-lumen bronchial intubation when the inner diameter is less than 6mm.

Furthermore, the side hole in the main bronchial cuff is elliptical or circular, which is more conducive to the elastic membrane sinking into the catheter when the main bronchial cuff is inflated, effectively blocking the distal end of the catheter.

The advantages of the present invention are: since the existing single-lumen bronchial intubation tube is equipped with a balloon into a structure in which the side hole of the catheter in the balloon is covered with a fixed elastic membrane, the difficulty of manufacture is reduced, and single-lumen and double-bag are used to achieve single-lumen three The lung isolation effect of the capsule can make the intubation tube into different specifications such as 3.0mm-10.0mm, which can meet the needs of single-lung ventilation for patients of different ages. It can not only effectively reduce the harm of intubation to the patient, but also greatly reduce production. Difficulty, the present invention can be used for both unilateral ventilation and bilateral ventilation, and the most important thing is that it can be used for single-lung ventilation in thoracic surgery for adults and infants at the same time, greatly improving the general performance.

Description of drawings

Figure 1 is a schematic diagram of a single-lumen double-balloon bronchial intubation when the bronchial cuff is not inflated.

Figure 2 is a schematic diagram of a single-lumen double-balloon bronchial intubation after the bronchial cuff is inflated.

Fig. 3 is a structural schematic diagram of a single-lumen double-balloon bronchial intubation scheme using an elastic sleeve.

In the figure: 1. catheter connector, 2. endotracheal tube, 3. tracheal cuff inflation tube, 4. pressure display ball, 5. tracheal cuff inflation valve, 6. bronchial cuff inflation valve, 7. bronchial cuff inflation tube , 8, tracheal cuff, 9, side hole of tracheal tube, 10, bronchial tube, 11, bronchial cuff, 12, side hole of bronchial tube, 13, elastic membrane, 14, elastic sleeve.

detailed description

Please refer to Fig. 1, the single lumen double-balloon bronchial intubation tube of the present invention, comprises endotracheal tube 2, catheter connector 1, endotracheal cuff 8, bronchial tube 10, bronchial cuff 11, endotracheal cuff inflation valve 5 and bronchial cuff inflation Valve 6, endotracheal tube 2 is provided with scale, one side of endotracheal tube 2 between described tracheal cuff 8 and bronchial cuff 11 is provided with an endotracheal tube side hole 8, and the bronchial tube in described bronchial cuff 11 10 is provided with a bronchial catheter side hole 12, and the bronchial catheter side hole 12 is provided with an elastic membrane 13, and the elastic membrane 13 can be inwardly recessed to be close to the inner wall of the bronchial catheter 10 when the bronchial cuff 11 is inflated, thereby sealing Bronchial catheter 10, the tracheal cuff 8 communicates with the tracheal cuff inflation tube 3, and the bronchial cuff 11 communicates with the bronchial cuff inflation tube 7; the tracheal cuff inflation tube 3 and the bronchial cuff inflation tube 7 The upper end is provided with a pressure display ball 4 and a cuff inflation valve.

The inner diameter of the endotracheal tube 2 is 3.0-10.0mm.

The side hole 12 of the bronchial catheter is oval or circular. When the bronchial cuff 11 is inflated through the bronchial cuff inflation tube 7, the air pressure of the bronchial cuff 11 pushes the lower elastic membrane 13 to protrude into the lumen of the bronchial catheter 10, Before the bronchial cuff 11 effectively seals the bronchus, the elastic mold 13 seals the lumen of the bronchial catheter 10 in advance, which is beneficial to effectively seal the bronchial catheter.

During clinical use, the intubation tube is inserted into the trachea through the mouth. When the bronchial cuff 11 reaches the appropriate position of the human bronchus, the tracheal cuff 8 is inflated through the tracheal cuff inflation tube 3 to seal the trachea, and the patient is ventilated from the tube to verify the integrity of both lungs. If there is no abnormality in the ventilation situation, then inflate the bronchial cuff 11 through the bronchial cuff inflation tube 7. As the pressure in the bronchial cuff 11 gradually increases, the elastic mold 13 gradually protrudes into the bronchial cavity, and the bronchial catheter lumen is first closed. Continue to inflate the bronchial cuff 11. When the bronchial cuff 11 effectively seals the bronchi, stop inflating to verify the breathing of both lungs. If the clinical requirements are met, the purpose of one-lung ventilation is achieved through the side hole 9 of the endotracheal tube.

When bilateral ventilation is required, the gas in the bronchial cuff 11 is evacuated through the bronchial cuff inflation valve 6, the elastic mold 13 is retracted, and the lumen of the bronchial catheter 10 is opened, thereby realizing bilateral lung ventilation.

The tube body of the present invention can produce left and right categories and tube numbers with various inner diameters of 3.0-10.0. The length can be designed according to patients of different ages, and the appropriate category can be selected according to the lung isolation requirements, and the appropriate tube number can be selected according to the age of the patient. use.

In another embodiment of the present invention, the bronchial catheter 10 in the bronchial cuff 11 is disconnected for a section, and the disconnected part is connected with an elastic sleeve 14. When the bronchial cuff 11 is not inflated, the inner diameter of the elastic sleeve 14 is close to the bronchial catheter. 10. Ventilation is possible. When the bronchial cuff 11 is inflated, the inner diameter of the elastic sleeve 14 will be compressed and reduced to 0, which can also block the bronchial tube and realize unilateral ventilation.

Claims (4)

1. single-chamber double bolloon bronchial cannula, including endotracheal tube (2), catheter adapter (1), tracheal tampon (8), bronchial catheter (10), bronchial cuff (11), tracheal tampon charge valve (5) and bronchial cuff charge valve (6), endotracheal tube (2) is provided with Scale, it is characterised in that: the side of the endotracheal tube (2) between described tracheal tampon (8) and bronchial cuff (11) is provided with one Individual endotracheal tube side opening (9), the bronchial catheter (10) in described bronchial cuff (11) is provided with bronchial catheter side opening (12), bronchial catheter side opening (12) is provided with elastica (13), and described elastica (13) is inflated at bronchial cuff (11) In the case of can cave inward and be close to the inwall of bronchial catheter (10), thus close bronchial catheter (10), described tracheal tampon (8) connecting with tracheal tampon gas tube (3), described bronchial cuff (11) connects with bronchial cuff gas tube (7).

Single-chamber double bolloon bronchial cannula the most according to claim 1, it is characterised in that: described endotracheal tube (2) interior Footpath is 3.0-10.0mm.

Single-chamber double bolloon bronchial cannula the most according to claim 1, it is characterised in that: described bronchial catheter side opening (12) it is oval or circular.

Single-chamber double bolloon bronchial cannula the most according to claim 1, it is characterised in that: in described bronchial cuff (11) Bronchial catheter (10) disconnect one section, breaking part with spring-backed quill (14) connect.