A biomimetic adaptive dual-lumen endotracheal cannula

Abstract

This invention discloses a biomimetic adaptive dual-lumen endotracheal cannula, including a main tube, a dual-lumen accessory mounted on the upper end of the main tube, and three inflation tubes and a temperature detection lead connected to the connection between the dual-lumen accessory and the main tube. A suction block is fitted on the surface of the main tube below the dual-lumen accessory, with a suction tube connected to the upper end of the suction block. A bronchial cuff is mounted on the lower end of the main tube. This invention features a first and second cuff on the main tube, which can be used alternately to avoid bronchial mucosal ischemia and damage caused by prolonged static pressure from a single cuff on the same location. The suction block is also mounted on the main tube and can be moved along the main tube. Moving the suction block to the patient's mouth allows for the extraction of saliva and also prevents biting.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a biomimetic adaptive dual-lumen endotracheal tube. Background Technology

[0002] In thoracic surgery or certain critical care surgeries, a double-lumen endotracheal tube is typically inserted into the patient's trachea to separate the affected lung from the healthy lung. This prevents the spread of secretions and pathogens or the risk of acute airway obstruction. Simultaneously, it allows for one-lung ventilation of the healthy lung, freeing up surgical space for medical staff to operate within the pleural cavity on the affected lung side. Currently, endotracheal intubation procedures primarily utilize visual double-lumen endotracheal tubes equipped with cameras at the patient end. This allows the procedure to be performed under visual monitoring, enabling dynamic video surveillance and preventing damage to the patient's airways caused by blind intubation.

[0003] Existing biomimetic adaptive double-lumen endotracheal tubes are fixed with a cuff. Prolonged static compression of the cuff can easily cause ischemic damage to the bronchial mucosa, especially in patients undergoing prolonged surgery or with concurrent airway diseases, potentially increasing the risk of postoperative complications. Therefore, a biomimetic adaptive double-lumen endotracheal tube is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a biomimetic adaptive double-lumen endotracheal tube, which solves the problem that existing biomimetic adaptive double-lumen endotracheal tubes, which are fixed by a cuff, are prone to bronchial mucosal ischemia and damage due to prolonged static compression of the cuff, especially for patients undergoing long-term surgery or with airway lesions, potentially increasing the risk of postoperative complications.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a biomimetic adaptive dual-lumen endotracheal cannula, including a main tube, a dual-lumen accessory installed at the upper end of the main tube, three inflation tubes and a temperature detection lead wire connected at the connection between the dual-lumen accessory and the main tube, a liquid aspiration block sleeved on the surface of the main tube and below the dual-lumen accessory, a liquid aspiration tube connected to the upper end of the liquid aspiration block, a bronchial cuff installed at the lower end of the surface of the main tube, a first cuff and a second cuff fixedly disposed on the surface of the main tube and between the bronchial cuff and the liquid aspiration block, and a temperature measuring ring disposed between the first cuff and the second cuff.

[0008] As a further preferred embodiment of the present invention, the liquid extraction block has an inverted teardrop-shaped structure, is made of silicone material and has a hollow internal structure, and has a number of through holes evenly distributed on its surface.

[0009] As a further preferred embodiment of the present invention, an air bladder is installed inside the liquid extraction block, and the upper and lower ends of the air bladder are fixedly connected to the inner wall of the liquid extraction block. An absorbent sponge is also filled between the air bladder and the inner wall of the liquid extraction block.

[0010] As a further preferred embodiment of this utility model, the surface of the inflatable bladder is provided with a liquid extraction branch pipe, the upper end of the liquid extraction branch pipe is connected to the liquid extraction pipe, and a plurality of liquid extraction ports are evenly opened on the surface of the liquid extraction branch pipe, the positions of the liquid extraction ports corresponding to the positions of the through holes.

[0011] As a further preferred embodiment of this utility model, the temperature measuring ring is sleeved on the main guide tube, a temperature sensor is installed on the outer wall of the temperature measuring ring, a temperature detection wire is connected to the temperature sensor, a limit ring is provided on the inner wall of the temperature measuring ring, and two limit grooves are formed on the surface of the main guide tube to cooperate with the limit rings.

[0012] As a further preferred embodiment of the present invention, the first airbag, the second airbag, and the bronchial airbag are respectively connected to an inflation tube.

[0013] (III) Beneficial Effects

[0014] This invention provides a biomimetic adaptive dual-lumen endotracheal cannulation system. It has the following beneficial effects:

[0015] This invention features a first airbag and a second airbag on the main tube. The first and second airbags can be used alternately to avoid bronchial mucosal ischemia and damage caused by prolonged static pressure of a single airbag on the same location. A suction block is also installed on the main tube. The suction block can be moved on the main tube and moved to the patient's mouth to extract saliva, while also achieving the effect of preventing biting. Attached Figure Description

[0016] Figure 1 This is a diagram showing the external structure of the biomimetic adaptive dual-lumen endotracheal cannula described in this utility model.

[0017] Figure 2 This is a diagram showing the internal structure of the liquid extraction block described in this utility model;

[0018] Figure 3 This is a diagram showing the internal structure of the temperature measuring ring described in this utility model.

[0019] In the diagram: 1. Dual-chamber accessory; 2. Suction tube; 3. Inflation tube; 4. Suction block; 5. Main tube; 6. First airbag; 7. Temperature sensor; 8. Second airbag; 9. Bronchial airbag; 10. Temperature measuring ring; 11. Temperature detection lead wire; 12. Suction branch tube; 13. Through hole; 14. Inflation bag; 15. Liquid-absorbing sponge; 16. Limiting groove; 17. Limiting ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a biomimetic adaptive dual-lumen endotracheal cannula, including a main tube 5, a dual-lumen accessory 1 installed at the upper end of the main tube 5, three inflation tubes 3 and a temperature detection lead wire 11 connected at the connection between the dual-lumen accessory 1 and the main tube 5, a liquid extraction block 4 sleeved on the surface of the main tube 5 and below the dual-lumen accessory 1, a liquid extraction tube 2 connected to the upper end of the liquid extraction block 4, a bronchial airbag 9 installed at the lower end of the surface of the main tube 5, a first airbag 6 and a second airbag 8 fixedly arranged on the surface of the main tube 5 and between the bronchial airbag 9 and the liquid extraction block 4, and a temperature measuring ring 10 arranged between the first airbag 6 and the second airbag 8 for temperature monitoring.

[0022] Further improvements include an inverted teardrop-shaped suction block 4 made of silicone material with a hollow interior. The surface of the suction block 4 has several evenly distributed through-holes 13. An inflatable bladder 14 is installed inside the suction block 4, with its upper and lower ends fixedly connected to the inner wall of the suction block 4. An absorbent sponge 15 is placed between the inflatable bladder 14 and the inner wall of the suction block 4 to absorb saliva. A suction branch tube 12 is provided on the surface of the inflatable bladder 14, with its upper end connected to the suction tube 2. Several suction ports are evenly distributed on the surface of the suction branch tube 12, their positions corresponding to the through-holes 13. The suction tube 2 is connected to a negative pressure device, allowing for the extraction of saliva from the patient's mouth and also achieving an anti-biting effect.

[0023] In a further improvement, the temperature measuring ring 10 is fitted onto the main tube 5, and a temperature sensor 7 is installed on the outer wall of the temperature measuring ring 10. A temperature detection wire 11 is connected to the temperature sensor 7. A limit ring 17 is provided on the inner wall of the temperature measuring ring 10. Two limit grooves 16 are opened on the surface of the main tube 5 to cooperate with the limit ring 17. The temperature in the patient's trachea can be monitored through the temperature sensor 7. The temperature sensor 7 is connected to the detector through the temperature detection wire 11.

[0024] In a further improvement, the first airbag 6, the second airbag 8, and the bronchial airbag 9 are respectively connected to the inflation tube 3. The inflation and deflation of the first airbag 6, the second airbag 8, and the bronchial airbag 9 can be controlled separately. The first airbag 6 and the second airbag 8 are inflated and deflated alternately, which can avoid prolonged pressure on a single position.

[0025] Working principle: The lower end of the main tube 5 is inserted into the patient's mouth and into the trachea, extending into the bronchus. The bronchial cuff 9 is inflated, followed by the first cuff 6 or the second cuff 8. The suction block 4 is then lowered into the patient's mouth, thus completing the fixation. The first cuff 6 and the second cuff 8 can be repeatedly inflated and deflated using an inflation device to avoid prolonged pressure on a single area. The absorbent sponge 15 inside the suction block 4 absorbs saliva from the mouth. After the negative pressure device is activated, negative pressure is generated, and the absorbent sponge 15 is suctioned. After the procedure, the first cuff 6, the second cuff 8, and the bronchial cuff 9 are deflated, and the main tube 5 is removed.

[0026] The components of this utility model are: 1. a dual-lumen accessory; 2. a suction tube; 3. an inflation tube; 4. a suction block; 5. a main guide tube; 6. a first airbag; 7. a temperature sensor; 8. a second airbag; 9. a bronchial airbag; 10. a temperature measuring ring; 11. a temperature detection wire; 12. a suction branch tube; 13. a through hole; 14. an inflation bag; 15. a liquid-absorbing sponge; 16. a limiting groove; and 17. a limiting ring. All components are general standard parts or parts known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this utility model is the existing biomimetic adaptive dual-lumen bronchial cannula. Using an airbag for fixation can easily cause ischemic damage to the bronchial mucosa due to prolonged static pressure, especially in patients undergoing prolonged surgery or with airway diseases, potentially increasing the risk of postoperative complications. This invention addresses this issue by combining the aforementioned components. The main tube 5 is equipped with a first airbag 6 and a second airbag 8, which can be used alternately. This avoids the ischemic damage to the bronchial mucosa caused by prolonged static pressure from a single airbag on the same location. A suction block 4 is also installed on the main tube 5. The suction block 4 can be moved along the main tube 5 and positioned in the patient's mouth to extract saliva, while also preventing biting. The above description illustrates the basic principles, main features, and advantages of this invention. It is obvious to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A biomimetic adaptive dual-lumen endotracheal cannula, comprising a main tube (5), characterized in that: The upper end of the main tube (5) is equipped with a double-cavity accessory (1). The connection between the double-cavity accessory (1) and the main tube (5) is also connected to three inflation tubes (3) and a temperature detection wire (11). A liquid extraction block (4) is sleeved on the surface of the main tube (5) and below the double-cavity accessory (1). The upper end of the liquid extraction block (4) is connected to a liquid extraction tube (2). A bronchial airbag (9) is installed on the lower end of the surface of the main tube (5). A first airbag (6) and a second airbag (8) are fixedly arranged on the surface of the main tube (5) between the bronchial airbag (9) and the liquid extraction block (4). A temperature measuring ring (10) is arranged between the first airbag (6) and the second airbag (8).

2. The biomimetic adaptive dual-lumen endotracheal cannula according to claim 1, characterized in that: The liquid extraction block (4) has an inverted teardrop-shaped structure. The liquid extraction block (4) is made of silicone material and has a hollow structure inside. Several through holes (13) are evenly opened on the surface of the liquid extraction block (4).

3. The biomimetic adaptive dual-lumen endotracheal cannula according to claim 2, characterized in that: An air bladder (14) is installed inside the liquid extraction block (4). The upper and lower ends of the air bladder (14) are fixedly connected to the inner wall of the liquid extraction block (4). An absorbent sponge (15) is also filled between the air bladder (14) and the inner wall of the liquid extraction block (4).

4. The biomimetic adaptive dual-lumen endotracheal cannula according to claim 3, characterized in that: The surface of the inflatable bladder (14) is provided with a liquid extraction branch pipe (12), the upper end of which is connected to the liquid extraction pipe (2). The surface of the liquid extraction branch pipe (12) is evenly provided with a number of liquid extraction ports, the positions of which correspond to the positions of the through holes (13).

5. The biomimetic adaptive dual-lumen endotracheal cannula according to claim 1, characterized in that: The temperature measuring ring (10) is sleeved on the main tube (5). A temperature sensor (7) is installed on the outer wall of the temperature measuring ring (10). A temperature detection wire (11) is connected to the temperature sensor (7). A limit ring (17) is provided on the inner wall of the temperature measuring ring (10). Two limit grooves (16) are opened on the surface of the main tube (5) to cooperate with the limit ring (17).

6. The biomimetic adaptive dual-lumen endotracheal cannula according to claim 1, characterized in that: The first airbag (6), the second airbag (8) and the bronchial airbag (9) are respectively connected to the inflation tube (3).

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