Visual double-lumen bronchial tube with quick-connect tubing

Abstract

The utility model relates to medical instrument technical field discloses a visual double -cavity bronchial cannula of quick -witted connecting pipeline, including main pipe body, the main pipe body outer wall one side is provided with tracheal cuff, the main pipe body inside is close to tracheal cuff one side and is provided with LED camera, the main pipe body outer wall is close to LED camera one side and is fixedly connected with bronchial cuff, the main pipe body inside is provided with bronchial one -way valve, the main pipe body inside is close to bronchial one -way valve one side and is provided with tracheal one -way valve, the main pipe body inside is close to tracheal one -way valve one side and is provided with camera interface, in the utility model, realize pipeline quick plug -in through taper connecting sleeve, when inserting pipeline, the taper boss of inside extrude its outer wall in the inner wall of connecting sleeve, form friction self -locking, this design does not need tool, push in just connect, pull out just divide, greatly simplified operation process, saved clinical time, improved medical efficiency and practicality.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a visual double-lumen endotracheal tube that can be quickly connected to tubing. Background Technology

[0002] Double-lumen endotracheal intubation is a crucial medical device essential for anesthesiology and thoracic surgery when performing one-lung ventilation. By inserting a tube with two independent lumens into the patient's trachea, with its distal ends positioned in the main trachea and one main bronchus respectively, it is possible to ventilate, isolate, or collapse both lungs separately or simultaneously. This provides the necessary surgical field and a static surgical area for procedures such as thoracoscopic surgery, lobectomy, and esophageal surgery, and is one of the core techniques of modern thoracic anesthesia.

[0003] In current clinical practice, after successful insertion of a double-lumen endotracheal tube, its proximal connector needs to be connected to the ventilation circuit of the anesthesia machine or ventilator. This connection typically uses an internationally standardized (ISO) 15mm or 22mm tapered connector. The procedure involves the anesthesiologist aligning the two ports on the Y-shaped connector at the proximal end of the tube (corresponding to the tracheal and bronchial lumens respectively) with the corresponding connector at the end of the ventilation circuit. Then, by forcefully pushing in and slightly rotating, the connection and seal are achieved through friction between the tapered surfaces. The establishment of the entire ventilation circuit depends entirely on the insertion and removal of this standard tapered connector. During surgery, these connectors often need to be repeatedly disconnected and reconnected for suctioning or other procedures.

[0004] However, the commonly used standard conical connector has inherent limitations in terms of ease of connection and timeliness. Although standardized, this connection method relies entirely on the friction generated by the manual pushing and rotating force applied by the operator for fixation, making the connection and disconnection process relatively cumbersome. In the time-sensitive surgical environment or emergency situations, the operator needs to use both hands to accurately align the connector, forcefully insert it, and tighten it to ensure a secure and leak-free connection. This operation is particularly inefficient when frequent disconnection and reconnection are required (such as repeated suctioning). Furthermore, insufficient insertion force or slight deviation in angle can easily lead to loosening or leakage, affecting ventilation; while excessive tightening can make removal difficult, increasing the complexity and time consumption of the operation. Therefore, a visual double-lumen endotracheal tube that can quickly connect tubing is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this invention provides a visual dual-lumen endotracheal tube that allows for quick connection of tubing. It aims to improve upon existing standard conical connectors that rely on manual pushing and twisting friction for fixation, resulting in cumbersome connection and disconnection operations. In emergency situations such as surgery, this method is inefficient and prone to leakage or difficulty in extubation due to improper force, increasing operational complexity and time consumption.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a visual dual-lumen endotracheal cannula that can be quickly connected to a tubing, comprising a main body, a tracheal cuff disposed on one side of the outer wall of the main body, an LED camera disposed inside the main body near the tracheal cuff, a bronchial cuff fixedly connected to the outer wall of the main body near the LED camera, a bronchial one-way valve disposed inside the main body, a tracheal one-way valve disposed inside the main body near the bronchial one-way valve, a camera interface disposed inside the main body near the tracheal one-way valve, a cleaning chamber tubing disposed inside the main body near the camera interface, a tubing connector disposed at one end of the main body, and a connecting component disposed on one side of the tubing connector. The connecting assembly includes a connecting pipe, one end of which is fixedly connected to the inside of the pipe connector. A tapered connecting sleeve is fitted on the outer wall of the connecting pipe. A fixing block is provided inside the tapered connecting sleeve, and a tapered protrusion is fixedly connected to one side of the outer wall of the fixing block.

[0007] As a further description of the above technical solution: One end of the tapered connecting sleeve is fixedly connected to an internally threaded tube, and the internally threaded tube is internally connected to an externally threaded tube.

[0008] As a further description of the above technical solution: One end of the externally threaded pipe is fixedly connected to an external connecting pipe, and the internally threaded pipe and the tapered connecting sleeve are integrally formed.

[0009] As a further description of the above technical solution: A connecting block is fixedly connected to one side of the outer wall of the fixed block, and the outer wall of the connecting block is fixedly connected to one side of the inner wall of the tapered connecting sleeve.

[0010] As a further description of the above technical solution: The conical connecting sleeve is internally fixed with reinforcing ribs, which are arranged in a crisscrossing conical shape.

[0011] As a further description of the above technical solution: Both the connecting block and the fixing block have through holes inside, and the diameter of the through holes inside the connecting block and the fixing block is the same.

[0012] As a further description of the above technical solution: The tapered protrusions are arranged in a linear array of multiple units, and the inner wall of the connecting pipe is slidably connected to the outer wall of the tapered protrusions.

[0013] As a further description of the above technical solution: The outer wall of the connecting pipe, near the conical protrusion, abuts against the inner wall of the conical connecting sleeve. The conical protrusion is used to press the connecting pipe against the inner wall of the conical connecting sleeve to prevent it from falling off.

[0014] This utility model has the following beneficial effects: 1. This utility model achieves rapid, tool-free connection and disconnection of pipelines by incorporating an innovative connection component at the pipe connector. When connecting external pipelines, the operator simply inserts the connecting pipe into the conical connecting sleeve. During insertion, the inner wall of the connecting pipe contacts and slides against multiple conical protrusions on the fixing block. Due to the conical structure of the protrusions, a radial expansion force is generated, tightly pressing the outer wall of the connecting pipe against the inner wall of the conical connecting sleeve, forming a strong frictional self-locking mechanism. This connection method requires no rotation or tools; a simple insertion action is all that's needed. When replacing the pipeline, the operator simply pulls the conical connecting sleeve axially out of the connecting pipe to quickly release the lock. This design greatly simplifies the operation process, saves valuable clinical time, and improves medical efficiency.

[0015] 2. In this invention, an LED camera is built into the distal end of the tube, and real-time images can be transmitted to an external display device via the camera interface. This allows the operator to clearly observe the anatomical structures of the trachea, carina, and bronchi during intubation, thereby enabling precise guidance of the intubation depth and position. This ensures that the tracheal cuff and bronchial cuff are placed in the correct positions, effectively avoiding complications such as tissue damage, accidental entry into the esophagus, or improper positioning that may result from blind intubation. Furthermore, an independent cleaning cavity is provided inside the tube. If the camera's view is obstructed by secretions during the procedure, it can be flushed through this cavity, restoring a clear view without removing the tube. This ensures the continuous visualization of the entire procedure, greatly enhancing the safety and success rate of the surgery. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a visual dual-lumen endotracheal cannula that can be quickly connected to tubing, as proposed in this utility model. Figure 2 This is a schematic diagram of the tube connector portion of a visual dual-lumen endotracheal cannula that allows for quick connection of tubing, as proposed in this utility model. Figure 3This is a schematic diagram of the conical connecting sleeve portion of a visual dual-lumen endotracheal cannula that allows for quick connection of tubing, as proposed in this utility model. Figure 4 This is a schematic diagram of the reinforcing rib of a visual dual-lumen endotracheal cannula that can be quickly connected to a pipeline, as proposed in this utility model.

[0017] Legend: 1. Main tube; 2. Tracheal cuff; 3. LED camera; 4. Bronchial cuff; 5. Bronchial one-way valve; 6. Tracheal one-way valve; 7. Camera interface; 8. Cleaning chamber tube; 9. Tube connector; 10. Connecting pipe; 11. Conical connecting sleeve; 12. Internally threaded pipe; 13. External connecting pipe; 14. Externally threaded pipe; 15. Connecting block; 16. Fixing block; 17. Conical protrusion; 18. Reinforcing rib. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1-4 This utility model provides an embodiment of a visual dual-lumen endotracheal cannula that can be quickly connected to a tubing system. It includes a main tube 1, which serves as the main body of the cannula and is used to establish and maintain airway access. A tracheal cuff 2 is disposed on one side of the outer wall of the main tube 1. The tracheal cuff 2, when inflated, can conform to the tracheal wall to seal the airway. An LED camera 3 is disposed inside the main tube 1 near the tracheal cuff 2, providing real-time airway images during intubation. A bronchial cuff 4 is fixedly connected to the outer wall of the main tube 1 near the LED camera 3, selectively blocking the target main bronchus. A bronchial one-way valve 5 is disposed inside the main tube 1. One-way valve 5 is used to inflate and maintain pressure on bronchial cuff 4. One-way valve 6 is provided inside the main body 1 near the bronchial one-way valve 5. One-way valve 6 is used to inflate and maintain pressure on bronchial cuff 2. One-way valve 6 is provided inside the main body 1 near the bronchial one-way valve 6. One-way valve 7 is used to connect to an external display device to transmit video signals. One-way valve 8 is provided inside the main body 1 near the camera interface 7. One-way valve 8 provides an independent flushing channel for the camera to maintain a clear field of view. One end of the main body 1 is provided with a tube connector 9. One-way valve 9 is the base for connecting the tube to external devices. One side of tube connector 9 is provided with a connecting component. The connecting assembly includes a connecting pipe 10, which serves as the external conduit to be connected. One end of the connecting pipe 10 is fixedly connected to the inside of the pipe connector 9. A tapered connecting sleeve 11 is fitted on the outer wall of the connecting pipe 10, which serves as the housing of the quick-connect structure. A fixing block 16 is provided inside the tapered connecting sleeve 11, which is used to support the locking element. A tapered protrusion 17 is fixedly connected to one side of the outer wall of the fixing block 16. The tapered protrusion 17 is a key structure for achieving frictional self-locking. Multiple tapered protrusions 17 are arranged in a linear array, which ensures the generation of uniform radial expansion force. The inner wall of the connecting pipe 10 is slidably connected to the outer wall of the tapered protrusion 17. The side of the outer wall of the connecting pipe 10 near the tapered protrusion 17 abuts against the inner wall of the tapered connecting sleeve 11. The tapered protrusion 17 is used to press the connecting pipe 10 against the inner wall of the tapered connecting sleeve 11 to prevent it from falling off.

[0020] Specifically, a unified functional design is achieved by integrating visualization, double-bag occlusion, and a quick-connect system into the main tube 1. Its distal LED camera 3, in conjunction with the cleaning cavity tube 8, ensures full visualization of the cannulation insertion process, improving positioning accuracy and safety. Its proximal connecting component utilizes multiple conical protrusions 17 on the fixing block 16. When the connecting tube 10 is inserted into the conical connecting sleeve 11, the radial expansion force generated by the conical surface effect tightly presses the outer wall of the connecting tube 10 against the inner wall of the conical connecting sleeve 11, forming a robust frictional self-locking mechanism.

[0021] Reference Figures 1-4 One end of the tapered connecting sleeve 11 is fixedly connected to an internally threaded tube 12, which provides a spare threaded connection interface. An externally threaded tube 14 is internally threaded into the internally threaded tube 12. This threaded connection structure can be used to connect non-standard or externally sourced equipment requiring stronger locking force. One end of the externally threaded tube 14 is fixedly connected to an external connecting tube 13, which serves as the final port for threaded connections. The internally threaded tube 12 and the tapered connecting sleeve 11 are integrally formed. This integral design simplifies the structure and improves overall strength and airtightness. A connecting block 15 is fixedly connected to one side of the outer wall of the fixing block 16. 5. As a supporting structure, one side of the outer wall of the connecting block 15 is fixedly connected to one side of the inner wall of the conical connecting sleeve 11. This connection method ensures the stability of the fixed block 16 inside the conical connecting sleeve 11. A reinforcing rib 18 is fixedly connected inside the conical connecting sleeve 11. This reinforcing rib 18 is used to enhance the structural rigidity of the conical connecting sleeve 11. The reinforcing rib 18 is arranged in a crisscrossing conical cylindrical shape. This structure can effectively resist radial pressure and prevent deformation of the connecting sleeve under stress. Both the connecting block 15 and the fixed block 16 have through holes inside, which ensure unobstructed ventilation or operation channels. The diameter of the through holes inside the connecting block 15 and the fixed block 16 is the same. This consistent size design avoids narrow cross-sections at the connection point, ensuring smooth fluid flow.

[0022] Specifically, the internal fixing block 16 is securely installed on the inner wall of the conical connecting sleeve 11 via the connecting block 15. Simultaneously, crisscrossing reinforcing ribs 18 are provided inside the conical connecting sleeve 11, significantly improving the structural rigidity of the connecting sleeve and ensuring that it will not deform under radial compression from the conical protrusion 17, thus guaranteeing the reliability of the quick-connect function. Furthermore, this invention also provides a backup threaded connection scheme consisting of an internally threaded tube 12, an externally threaded tube 14, and an external connecting tube 13, providing compatibility for connecting different types of medical equipment. The through-hole dimensions of the connecting block 15 and the fixing block 16 are consistent, ensuring unobstructed airflow throughout the entire pipeline.

[0023] Working principle: When this intubation tube is needed, the main tube 1 is first inserted through the patient's mouth or nose. During insertion, the operator connects to a display device via the camera interface 7 inside the main tube 1 to obtain high-definition images of the airway captured in real time by the remote LED camera 3 of the main tube 1. With clear visual guidance, the operator can accurately advance the main tube 1 to the predetermined position, ensuring that the bronchial cuff 4 enters the target main bronchus, while the tracheal cuff 2 is positioned above the tracheal carina. After positioning, the bronchial cuff 4 and tracheal cuff 2 are inflated through the corresponding tubing within the main tube 1 via the bronchial one-way valve 5 and the tracheal one-way valve 6, respectively, causing them to expand and adhere to the tube wall, achieving effective isolation of both lungs. If the view of the LED camera 3 is obstructed by secretions during operation, it can be flushed using the irrigation lumen tube 8 to maintain a clear view. After the cannula is positioned, it needs to be connected to the external ventilation equipment. This process is completed through the tube connector 9 at the end of the main tube 1 and its connecting components. Specifically, the operator aligns the external equipment's connecting tube 10 and inserts it into the tapered connecting sleeve 11 of the connecting component. During insertion, the inner wall of the connecting tube 10 comes into contact with multiple tapered protrusions 17 on the fixing block 16 fixed inside the tapered connecting sleeve 11. Because the tapered protrusions 17 are linearly arrayed and their outer diameter gradually increases, they generate a radial expansion force from the inside out on the flexible connecting tube 10. This force tightly presses the outer wall of the connecting tube 10 against the hard inner wall of the tapered connecting sleeve 11, forming a stable and reliable self-locking connection through significant friction. When disconnection is required, simply pull the connecting tube 10 out of the tapered connecting sleeve 11.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A visual dual-lumen endotracheal cannula that allows for rapid connection of tubing, characterized in that, The system includes a main tube body (1), a tracheal cuff (2) is provided on one side of the outer wall of the main tube body (1), an LED camera (3) is provided inside the main tube body (1) near the tracheal cuff (2), a bronchial cuff (4) is fixedly connected to the outer wall of the main tube body (1) near the LED camera (3), a bronchial one-way valve (5) is provided inside the main tube body (1), a tracheal one-way valve (6) is provided inside the main tube body (1) near the bronchial one-way valve (5), a camera interface (7) is provided inside the main tube body (1) near the tracheal one-way valve (6), a cleaning chamber tube body (8) is provided inside the main tube body (1) near the camera interface (7), a tube connector (9) is provided at one end of the main tube body (1), and a connecting component is provided on one side of the tube connector (9). The connecting assembly includes a connecting pipe (10), one end of which is fixedly connected to the inside of the pipe connector (9). A tapered connecting sleeve (11) is fitted on the outer wall of the connecting pipe (10), and a fixing block (16) is provided inside the tapered connecting sleeve (11). A tapered protrusion (17) is fixedly connected to one side of the outer wall of the fixing block (16).

2. The visual dual-lumen endotracheal cannula with rapid tubing connection according to claim 1, characterized in that: One end of the tapered connecting sleeve (11) is fixedly connected to an internally threaded tube (12), and the internally threaded tube (12) is internally threaded to an externally threaded tube (14).

3. The visual dual-lumen endotracheal cannula with rapid tubing connection according to claim 2, characterized in that: One end of the external threaded pipe (14) is fixedly connected to an external connecting pipe (13), and the internal threaded pipe (12) and the tapered connecting sleeve (11) are integrally formed.

4. The visual double-lumen bronchial cannula with quick-connect tubing of claim 1, wherein: A connecting block (15) is fixedly connected to one side of the outer wall of the fixing block (16), and the outer wall of the connecting block (15) is fixedly connected to one side of the inner wall of the tapered connecting sleeve (11).

5. A visual dual-lumen endotracheal cannula with rapid tubing connection according to claim 1, characterized in that: The conical connecting sleeve (11) is internally fixedly connected with reinforcing ribs (18), which are arranged in a conical cylindrical shape with crisscrossing arrangement.

6. A visual dual-lumen endotracheal cannula with rapid tubing connection according to claim 4, characterized in that: Both the connecting block (15) and the fixing block (16) have through holes inside, and the diameter of the through holes inside the connecting block (15) and the fixing block (16) is the same.

7. The visual double lumen bronchial tube with quick connecting tubes according to claim 1, characterized in that: The tapered protrusions (17) are arranged in a linear array of multiple, and the inner wall of the connecting pipe (10) is slidably connected to the outer wall of the tapered protrusions (17).

8. The visual double-lumen bronchial cannula with quick-connect tubing of claim 1, wherein: The outer wall of the connecting pipe (10) near the conical protrusion (17) abuts against the inner wall of the conical connecting sleeve (11). The conical protrusion (17) is used to squeeze the connecting pipe (10) against the inner wall of the conical connecting sleeve (11) to prevent it from falling off.

Images