Extensible double-cavity balloon tracheal catheter

Abstract

The utility model belongs to the field of medical supplies, and particularly relates to an extensible double-cavity balloon tracheal catheter. The catheter comprises a catheter body, and the two ends of the catheter body are an inserting end and a connecting end respectively. A far-end balloon and a near-end balloon are arranged at the insertion end of the catheter body; and an extension tube is connected to the connecting end of the catheter body. Before the tracheal catheter is connected with the extension tube, the tracheal catheter ensures lung ventilation of a patient like a traditional tracheal catheter through the cooperation of the catheter body and the far-end balloon. In the operation process, when airway hemorrhage occurs, the length of the catheter is increased through the extension tube, and the far-end balloon prevents blood from flowing to double lungs, so that the influence on ventilation of the lungs of a patient is reduced; the near-end balloon prevents blood from flowing out of the oral cavity of the patient, it is ensured that the surgery operation scene is clear, rescue opportunity delay is avoided, and the life of the patient is saved in time.

Description

Technical Field

[0001] The utility model belongs to the field of medical supplies, and in particular relates to an extendable double-lumen balloon tracheal catheter. Background Art

[0002] The tracheal tube is mainly used to maintain the patient's breathing. When in use, the tracheal tube is inserted into the patient's airway, which can effectively prevent airway blockage and keep the airway open; when necessary, the tracheal tube can be connected to a ventilator or other auxiliary ventilation equipment to assist the patient's breathing by delivering oxygen and adjusting the gas flow. Existing tracheal tubes are equipped with a single-chamber balloon, which is used to fix the tracheal tube in the airway and ensure that the patient's lungs are ventilated during assisted breathing.

[0003] During the operation, the doctor chooses the length of the endotracheal tube to ensure that it can be properly located in the patient's airway after intubation, thereby ensuring the patient's ventilation and treatment effects. Generally, the most appropriate length is determined by referring to the tracheal entrance of the patient. However, in airway interventional diagnosis and treatment surgery, if massive airway bleeding occurs, the endotracheal tube can only use a single-lumen balloon to prevent blood from flowing out of the patient's mouth to ensure a clear surgical operation scene. However, the single-lumen balloon cannot reach the healthy airway to prevent blood from flowing to the patient's lungs, causing problems with the patient's lung ventilation, which is extremely likely to delay rescue.

[0004] In order to prevent massive airway bleeding during airway interventional diagnostic and treatment surgery, doctors sometimes choose to use a longer endotracheal tube for surgery. This ensures that the endotracheal tube is positioned deeper into the healthy airway, so that in the event of bleeding, blood can be prevented from flowing to the patient's lungs, thereby reducing the impact on the patient's lung ventilation. However, an endotracheal tube that is too long may result in too deep insertion, damage to the airway structure, or cause other complications; and an endotracheal tube that is too long will not only cause inconvenience during insertion, but will also interfere with subsequent surgical operations.

[0005] During surgery, even if a longer endotracheal tube is used, it is ensured to be positioned deeper into the healthy airway to prevent blood from flowing into the patient's lungs and reduce the impact on the patient's lung ventilation. However, a single-chamber balloon can only select the airway or the healthy airway, and cannot simultaneously prevent blood from flowing out of the patient's mouth and preventing blood from flowing into the patient's lungs. Therefore, the rescue time may be delayed during surgery, thus endangering the patient's life.

[0006] In summary, the above-mentioned prior art has the following problems: when facing massive airway bleeding during surgery, the existing tracheal tube cannot simultaneously prevent blood from flowing out of the patient's mouth and prevent blood from flowing into the patient's lungs. Utility Model Content

[0007] In view of this, the purpose of the utility model is to provide an extendable double-lumen balloon endotracheal catheter to solve the problems existing in the above-mentioned background technology.

[0008] In order to solve the above technical problems, the technical solution of the utility model is an extendable double-lumen balloon endotracheal catheter, which includes a catheter body, wherein the two ends of the catheter body are respectively an insertion end and a connecting end; a distal balloon and a proximal balloon are provided on the insertion end of the catheter body; both the distal balloon and the proximal balloon are connected to a connecting tube, one end of the connecting tube is located at the insertion end and connected to the distal balloon or the proximal balloon, and the other end of the connecting tube is located at the connecting end and is provided with an indicator balloon; an extension tube is connected to the connecting end of the catheter body.

[0009] Preferably, the two ends of the extension tube are respectively a docking end and an external connection end, the docking end of the extension tube is connected to the insertion end of the catheter body, and the docking end of the extension tube and the insertion end of the catheter body are connected by a first docking joint; a second docking joint is provided on the external connection end of the extension tube.

[0010] Furthermore, the first docking joint is a sleeve, which is arranged on the extension tube or the catheter body, and the docking end of the extension tube and the insertion end of the catheter body are plugged into each other.

[0011] Preferably, the distal balloon is close to the port at the insertion end of the catheter body, and the proximal balloon is far from the port at the insertion end of the catheter body; the proximal balloon and the catheter body are detachably connected, and an annular limiting rubber band is provided on the inner side of the proximal balloon, and annular limiting grooves are equidistantly provided on the catheter body, and the limiting rubber band is located in the limiting grooves.

[0012] Preferably, the distal balloon and the catheter body are detachably connected.

[0013] The technical effects of the utility model are mainly reflected in the following aspects: before the tracheal tube is connected to the extension tube, the tracheal tube ensures the patient's lung ventilation through the cooperation of the tube body and the distal balloon, just like the traditional tracheal tube. The setting of the extension tube allows the length of the tube to be extended in time when facing massive airway bleeding, without the need to select a longer tracheal tube to prevent this situation, thereby avoiding the inconvenience that may be caused by the insertion of an overly long tube and interference with subsequent surgical operations. During the operation, when massive airway bleeding occurs, the length of the tube is extended by the extension tube, and the distal balloon prevents blood from flowing to the lungs, reducing the impact on the patient's lung ventilation; the proximal balloon prevents blood from flowing out of the patient's mouth, ensuring a clear surgical operation scene, avoiding delays in rescue opportunities, and saving the patient's life in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1This is a conventional structural diagram of an extendable double-lumen balloon endotracheal catheter of the utility model;

[0015] Figure 2 This is a structural explosion diagram of an extendable double-lumen balloon endotracheal catheter of the utility model;

[0016] Figure 3 The middle is a partial structural cross-sectional view of an extendable double-lumen balloon endotracheal catheter of the utility model;

[0017] In the figure: 1. catheter body, 11. insertion end, 12. connection end; 2. distal balloon; 3. proximal balloon, 31. limiting rubber band, 32. limiting groove; 4. connecting tube; 5. extension tube, 51. docking end, 52. external connection end; 53. first docking joint, 54. second docking joint. DETAILED DESCRIPTION

[0018] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0019] In this embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left end", "above", "back", "middle", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, in this specific embodiment, if the connection or fixing method between components is not specifically described, the connection or fixing method can be through bolt fixing or pin fixing, or pin shaft connection and the like commonly used in the prior art, and therefore, it is not described in detail in this embodiment.

[0021] Description of the lung trachea structure:

[0022] Trachea: The trachea is a flexible but rigid tube-like structure located between the neck and chest.

[0023] Bronchus: also called the healthy airway, can be divided into the left bronchus and the right bronchus; after the trachea enters the chest cavity, it branches into these two bronchi.

[0024] Embodiment 1

[0025] See also Figure 1A tracheal catheter comprises a catheter body 1, wherein the two ends of the catheter body 1 are respectively an insertion end 11 and a connection end 12; a distal balloon 2 is provided on the insertion end 11 of the catheter body 1, and a second docking joint 54 is provided on the connection end 12 of the catheter body 1; the second docking joint 54 is the same as the external joint provided at the end of a traditional tracheal catheter. A connecting tube 4 is connected to the distal balloon 2, one end of the connecting tube 4 is located at the insertion end 11, connected to the distal balloon 2 or the proximal balloon 3, and the other end of the connecting tube 4 is located at the connection end 12, and is provided with an indicator balloon. Specifically, an independent sealing structure is formed between the distal balloon 2, the connecting tube 4 and the indicator balloon, and the distal balloon 2 is inflated or injected with liquid through the connecting tube 4 and the indicator balloon to expand the distal balloon 2, thereby playing a blocking role. The second docking connector 54 is a component for connecting the tracheal tube and other equipment or accessories, and is used to connect a ventilator, an oxygen supply system or other auxiliary equipment to achieve gas transmission and connection; it can also connect other accessories, such as a suction tube, an air bag, etc., to achieve additional functions, such as suction, air bag inflation, etc., to meet the special needs of patients. The structure of the above-mentioned tracheal tube is roughly the same as that of a traditional tracheal tube, and no further description will be given;

[0026] Embodiment 2

[0027] See also Figure 2 , an extendable double-lumen balloon endotracheal catheter, comprising a catheter body 1, wherein the two ends of the catheter body 1 are respectively an insertion end 11 and a connection end 12; a distal balloon 2 and a proximal balloon 3 are arranged on the insertion end 11 of the catheter body 1; the distal balloon 2 is close to the port of the insertion end 11 of the catheter body 1, and the proximal balloon 3 is far from the port of the insertion end 11 of the catheter body 1. The distal balloon 2 can act on the trachea and bronchus, and the proximal balloon 3 acts on the trachea. The distal balloon 2 and the proximal balloon 3 are both connected to a connecting tube 4, one end of the connecting tube 4 is located at the insertion end 11, connected to the distal balloon 2 or the proximal balloon 3, and the other end of the connecting tube 4 is located at the connection end 12 and is provided with an indicator balloon; in the traditional endotracheal catheter, the connecting tube 4 is longer than the length of the endotracheal catheter for the convenience of use, so there is no need to worry about the situation that it is difficult to inflate the distal balloon 2 or the proximal balloon 3 through the connecting tube 4 after the endotracheal catheter is extended. The distal balloon 2 and the proximal balloon 3 are both provided with corresponding connecting tubes 4 and indicating balloons, and the related structures are the same as those on the traditional tracheal tube, so no further description is given. An extension tube 5 is connected to the connecting end 12 of the catheter body 1. By adding the extension tube 5 to increase the length of the tracheal tube, in airway interventional diagnosis and treatment surgery, it is not only more convenient for doctors to perform tracheal insertion, but also when heavy airway bleeding occurs, the length of the tracheal tube can be extended to allow the balloon to reach the healthy airway and prevent blood from flowing to the patient's lungs.

[0028] Usage description: In normal use, the distal balloon 2 is inflated in the trachea, which is the same as the traditional tracheal tube. When massive airway bleeding occurs during airway interventional diagnosis and treatment surgery, if the bleeding is in the left lung, then the extension tube 5 is added, the distal balloon 2 is inflated in the right bronchus, and the proximal balloon 3 is inflated in the trachea; in this way, the blood will only flow in the left lung, which not only prevents blood from flowing out of the patient's mouth to ensure a clear surgical operation scene; it can also prevent blood from flowing to the patient's lungs, and ventilate one side of the patient's lung, meeting the purpose of ventilating the healthy lung and blocking bleeding in the bleeding lung. The hemostasis effect is simple and efficient, does not delay the rescue time, and can effectively save the patient's life.

[0029] The two ends of the extension tube 5 are respectively a docking end 51 and an external connection end 52. The docking end 51 of the extension tube 5 is connected to the insertion end 11 of the catheter body 1. The docking end 51 of the extension tube 5 and the insertion end 11 of the catheter body 1 are connected by a first docking joint 53; a second docking joint 54 is provided on the external connection end 52 of the extension tube 5. The second docking joint 54 in this embodiment has the same structure and use as the second docking joint 54 in the first embodiment, and no further description is given on this difference. The first docking joint 53 is a sleeve, which is arranged on the extension tube 5 or the catheter body 1. The docking end 51 of the extension tube 5 and the insertion end 11 of the catheter body 1 are plugged into each other; the catheter body 1 and the extension tube 5 are both hoses. Specifically, a sleeve is put on the end of one of the hoses, and then the sleeve parts of the two hoses are inserted into each other to enhance the connection strength of the hose and reduce the risk of leakage. By connecting the hoses and the sleeve to the connection, the extension tube 5 and the catheter body 1 are stably connected, while the diameter of the connection is not too large, so as to avoid the situation where the connection is too thick to enter the patient's trachea.

[0030] Embodiment 3

[0031] See also Figure 3 , an extendable double-lumen balloon endotracheal catheter, the structure of the endotracheal catheter in this embodiment is roughly the same as that in the endotracheal catheter in the second embodiment, the difference is that the distal balloon 2 and the proximal balloon 3 on the endotracheal catheter in this embodiment are detachably connected, while the distal balloon 2 and the proximal balloon 3 on the endotracheal catheter in the second embodiment are fixedly connected.

[0032] The proximal balloon 3 and the catheter body 1 are detachably connected, and an annular limiting rubber band 31 is provided on the inner side of the proximal balloon 3. An annular limiting groove 32 is equidistantly provided on the catheter body 1, and the limiting rubber band 31 is located in the limiting groove 32. The limiting rubber band 31 is set in different limiting grooves 32 to change the position of the proximal balloon 3, so as to adjust the distance between the proximal balloon 3 and the distal balloon 2. Specifically, due to the differences in human bodies, during surgery, doctors generally refer to the tracheal entrance that can reach the patient to determine the most suitable length of the tracheal tube, so as to ensure that it can be properly located in the patient's airway after intubation, and ensure the patient's ventilation and treatment effect. In order to better prevent the occurrence of massive airway bleeding during airway interventional diagnosis and treatment surgery, the doctor can flexibly adjust the distance between the proximal balloon 3 and the distal balloon 2 according to the patient's lung CT before the operation, so that the tracheal tube can simultaneously prevent blood from flowing out of the patient's mouth and prevent blood from flowing to the patient's lungs when facing massive airway bleeding. The distal balloon 2 and the catheter body 1 are detachably connected; the distal balloon 2 is arranged in a detachable form so that the endotracheal catheter can be repeatedly used by replacing the balloon.

[0033] The technical effects of the utility model are mainly reflected in the following aspects: before the tracheal tube is connected to the extension tube 5, the tracheal tube ensures the patient's lung ventilation through the cooperation of the catheter body 1 and the distal balloon 2, just like the traditional tracheal tube. The setting of the extension tube 5 allows the catheter length to be extended in time when facing massive airway bleeding, without the need to select a longer tracheal tube to prevent this situation, thereby avoiding the inconvenience that may be caused by the insertion of an overly long catheter and interference with subsequent surgical operations. During the operation, when massive airway bleeding occurs, the catheter length is extended by the extension tube 5, and the distal balloon 2 prevents blood from flowing to the lungs, reducing the impact on the patient's lung ventilation; the proximal balloon 3 prevents blood from flowing out of the patient's mouth, ensuring a clear surgical operation scene, avoiding delays in rescue opportunities, and saving the patient's life in time.

[0034] Of course, the above are only typical examples of the present invention. In addition, the present invention can also have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. An extendable double-lumen balloon endotracheal catheter, characterized in that: It comprises a catheter body, the two ends of which are an insertion end and a connection end respectively; a distal balloon and a proximal balloon are arranged on the insertion end of the catheter body; the distal balloon and the proximal balloon are both connected to a connecting tube, one end of the connecting tube is located at the insertion end and connected to the distal balloon or the proximal balloon, and the other end of the connecting tube is located at the connection end and is provided with an indicator balloon; an extension tube is connected to the connection end of the catheter body.

2. An extendable double-lumen balloon endotracheal catheter as claimed in claim 1, characterized in that: The two ends of the extension tube are respectively a docking end and an external connection end. The docking end of the extension tube is connected to the insertion end of the catheter body. The docking end of the extension tube and the insertion end of the catheter body are connected by a first docking joint; a second docking joint is provided on the external connection end of the extension tube.

3. An extendable double-lumen balloon endotracheal catheter as claimed in claim 2, characterized in that: The first docking joint is a sleeve, which is arranged on the extension tube or the catheter body, and the docking end of the extension tube and the insertion end of the catheter body are plugged into each other.

4. An extendable double-lumen balloon endotracheal catheter as claimed in claim 1, characterized in that: The distal balloon is close to the port of the insertion end of the catheter body, and the proximal balloon is far from the port of the insertion end of the catheter body; the proximal balloon and the catheter body are detachably connected, and an annular limiting rubber band is provided on the inner side of the proximal balloon, and annular limiting grooves are equidistantly opened on the catheter body, and the limiting rubber band is located in the limiting groove.

5. The extendable double-lumen balloon endotracheal catheter according to claim 1, characterized in that: The distal balloon and the catheter body are detachably connected.

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