A detachable double-lumen chest drainage tube driven by an air bag and a working method thereof

Abstract

The application discloses a detachable double-cavity chest drainage tube driven by an air bag and a working method thereof, which comprises a thick tube body, a groove being arranged on the side of the thick tube body along the length direction, a thin tube body, the diameter of the thin tube body being matched with the diameter of the groove, the thin tube body being embedded in the groove, a separation system, the separation system comprising an air sleeve and an inflation assembly, the air sleeve being installed on the inner wall of the groove, and a hard guide wire, the hard guide wire being arranged in the thick tube body, wherein, a conical implantation head is installed at the front end of the thick tube body, a plurality of side holes are formed in the conical implantation head, a drainage connector is installed at the rear end of the thick tube body, and a luer lock connector is installed at the rear end of the thin tube body. The detachable double-cavity chest drainage tube driven by an air bag adopts a groove embedding structure, combines two cavities into one, realizes the double-channel function, maximally reduces the overall diameter during tube implantation, and reduces the puncture trauma and the pain of the patient.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a balloon-driven separable double-lumen chest drainage tube and its working method. Background Technology

[0002] Closed thoracic drainage is an indispensable core method in the clinical treatment of thoracic diseases. It drains the effusion and gas accumulated in the thoracic cavity through a thoracic drainage tube, restores negative pressure in the thoracic cavity to promote lung tissue re-expansion, and can be used in conjunction with auxiliary treatments such as thoracic irrigation, local drug administration, and pressure monitoring. The structure and performance of the drainage tube directly determine the clinical treatment effect and the patient's treatment experience.

[0003] Currently, routinely used chest drainage tubes in clinical practice are mainly divided into two categories: one is the traditional single-lumen drainage tube, which only has a single drainage channel and can only perform basic functions such as drainage of effusion and pneumothorax. When clinical procedures such as pleural lavage and drug administration are required, a new channel must be established by puncture, or the existing drainage line must be repeatedly punctured. This not only increases the workload of medical staff, but also significantly increases the risk of pleural infection and secondary trauma to patients, thus having obvious limitations in clinical application.

[0004] Secondly, there is the integrated double-lumen chest drainage tube. This type of drainage tube integrates drainage and auxiliary treatment functions through a fixed integrated structure of "tube within a tube" or parallel double lumens, solving the problem of multiple operations required for single-lumen tubes. However, it still has significant technical drawbacks: On the one hand, the integrated double-lumen structure results in a larger overall diameter of the drainage tube, with the commonly used clinical specifications having an outer diameter of more than 8mm. This causes greater trauma to the patient's chest wall tissue during tube placement, exacerbating the patient's pain and postoperative discomfort. On the other hand, the existing double-lumen tubes have a fixed and non-separable design, lacking a rapid separation mechanism under aseptic conditions. When a small-diameter tube needs to be placed separately, it must be manually peeled off or separated with the help of external instruments. This operation is cumbersome and prone to introducing exogenous contamination. It cannot balance the convenience of tube placement with the flexibility of functional switching during treatment, making it difficult to meet the diverse treatment needs in clinical practice. Summary of the Invention

[0005] The purpose of this invention is to provide a balloon-driven separable dual-lumen chest drainage tube and its working method to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a balloon-driven detachable dual-lumen chest drainage tube, comprising: The thick tube body has a groove on its side along the length direction, and the cross-section of the groove is C-shaped. A thin tube body, the diameter of which matches the diameter of the groove, is embedded in the groove; A separation system, comprising an air bladder and an inflation assembly, wherein the air bladder is mounted on the inner wall of the groove and abuts against the thin tube body, and the inflation assembly is connected to the air inlet end of the air bladder; A rigid guide wire is inserted inside the thick tube body; The front end of the thick tube body is equipped with a conical implant head, and the conical implant head has several side holes. The rear end of the thick tube body is equipped with a drainage connector. The rear end of the thin tube body is fitted with a Luer lock connector.

[0007] The airbag-driven separable dual-lumen chest drainage tube provided by the present invention has an outer diameter of no more than 8 mm for the main body of the thick tube.

[0008] According to the airbag-driven separable dual-lumen chest drainage tube provided by the present invention, the length of the groove is two-thirds of the length of the main body of the thick tube.

[0009] According to the airbag-driven separable dual-lumen chest drainage tube provided by the present invention, the outer diameter of the thin tube body is no greater than 2mm, and a gap is provided between the front end of the thin tube body and the front end of the groove.

[0010] According to the airbag-driven separable dual-cavity chest drainage tube provided by the present invention, an inflation port is installed at the end of the air bag, the inflation assembly includes a miniature inflatable airbag, a one-way valve is installed at the port of the miniature inflatable airbag, and the port of the miniature inflatable airbag is connected to the inflation port.

[0011] The airbag-driven separable dual-lumen chest drainage tube provided by the present invention has a thick tube body made of medical-grade flexible silicone material.

[0012] The airbag-driven separable dual-lumen chest drainage tube provided by the present invention has a thin tube body made of silicone or polyurethane material.

[0013] A method for operating a balloon-driven detachable double-lumen chest drainage tube includes the following steps: Step 1: Confirm that the thin tube body is tightly fitted into the C-shaped groove on the side wall of the thick tube body, the air bladder is fully contracted and abuts against the thin tube body, check the air passage unobstructedness of the inflation component and the air bladder and the sealing of the one-way valve, and insert the rigid guide wire completely into the lumen of the thick tube body to provide puncture support rigidity for the tube body. Step 2: Using the conical implant head at the front end of the thick tube as a guide, the thick tube and the thin tube, which are integrated as one unit, are simultaneously percutaneously punctured and placed into the target position in the thoracic cavity. After confirming that the tube is in place, the rigid guidewire inside the thick tube is pulled out. Step 3: Through the drainage connector at the rear end of the thick tube body, and in conjunction with the side hole on the conical implant head, the drainage channel is opened to complete the drainage of pleural effusion and pneumothorax; simultaneously, through the Luer lock connector at the rear end of the thin tube body, intrapleural drug administration, irrigation, or pressure monitoring is completed through the independent channel of the thin tube body. Step 4: Operate the inflation component connected to the air bladder, and inject gas into the air bladder on the inner wall of the groove at a uniform speed, so that the air bladder expands radially and continuously pushes the thin tube body until the thin tube body is completely separated from the structural limit of the C-shaped groove, thus achieving aseptic separation of the tube body. Step 5: While maintaining the inflation of the air cuff, smoothly pull the main body of the thick tube out of the body along the puncture channel, leaving only the main body of the thin tube at the target treatment location in the thoracic cavity. Step six: Complete the subsequent indwelling treatment through the Luer lock connector at the rear end of the thin tube body. Once the treatment reaches the indication for tube removal, completely remove the thin tube body from the body to complete the entire procedure.

[0014] The present invention discloses the following technical effects: 1. This invention adopts a groove-embedded integrated structure, which realizes the dual-lumen dual-channel function while controlling the overall outer diameter of the catheter within 8mm, greatly reducing the puncture diameter, reducing the trauma to the chest wall tissue during catheter placement, alleviating the patient's discomfort during and after the operation, and adapting to the clinical needs of minimally invasive catheter placement.

[0015] 2. This invention innovatively adopts an airbag-driven separation mechanism, which only requires external operation of the inflation component to achieve rapid and aseptic separation of the in vivo tube without the need for external instruments or manual dissection, greatly simplifying the operation process. The entire process is closed and without exposure, effectively reducing the risk of exogenous contamination and pleural infection.

[0016] 3. This invention enables integrated dual-lumen coordinated operation in the early stage of catheter placement, and separate thin tubes for individual placement as needed in the later stage of treatment. It is compatible with multiple functions such as drainage, flushing, drug administration, and pressure monitoring, and can be used for multiple purposes. This avoids the drawback of having to perform multiple punctures and catheter placements due to function switching, and meets the needs of clinical treatment throughout the entire cycle. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the airbag-driven detachable dual-lumen chest drainage tube of the present invention; Figure 2This is a schematic diagram of the internal structure of the airbag-driven separable dual-lumen chest drainage tube of the present invention.

[0019] The components include: 1. a thick tube body; 2. a thin tube body; 3. a groove; 4. a rigid guide wire; and 5. an air bladder. Detailed Implementation

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

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Reference Figures 1-2 This invention provides a balloon-driven detachable dual-lumen chest drainage tube, comprising: The thick tube body 1 has a groove 3 on its side along the length direction, and the cross-section of the groove 3 is C-shaped. The thin tube body 2 has a diameter that matches the diameter of the groove 3, and the thin tube body 2 is embedded in the groove 3; The separation system includes an air bladder 5 and an inflation assembly. The air bladder 5 is installed on the inner wall of the groove 3 and abuts against the thin tube body 2. The inflation assembly is connected to the air inlet end of the air bladder 5. Rigid guide wire 4 is inserted inside the thick tube body 1; The front end of the thick tube body 1 is equipped with a conical implant head, and the conical implant head has several side holes. The rear end of the thick tube body 1 is equipped with a drainage connector. A Luer lock connector is installed at the rear end of the thin tube body 2.

[0023] Further optimization of the design: the outer diameter of the main body 1 of the thick pipe is no more than 8mm.

[0024] The main body of the thick tube 1 has a wall thickness of 0.8-1.2mm, which maximizes the inner diameter while ensuring the tube's resistance to bending and collapse. Compared with traditional integrated double-lumen drainage tubes, it significantly reduces the expansion damage to chest wall tissues during puncture and reduces patient discomfort during tube placement. At the same time, this size is compatible with routine clinical thoracentesis instruments, eliminating the need for additional customized tools and ensuring the puncture support rigidity of the tube body after the rigid guidewire 4 is inserted, thus achieving minimally invasive and smooth tube placement.

[0025] The design was further optimized so that the length of the groove 3 is two-thirds of the length of the main body 1 of the thick tube.

[0026] Further optimization of the design: the outer diameter of the thin tube body 2 is no more than 2mm, and there is a gap between the front end of the thin tube body 2 and the front end of the groove 3.

[0027] The distance between the end of the groove 3 and the end of the main body 1 is 1 / 6 of the total length of the pipe body. This prevents the groove 3 from extending to the front side hole area and damaging the drainage structure, and also prevents the groove 3 from extending to the end joint area and affecting the sealing performance.

[0028] The groove 3 has rounded corner transition structures at both ends to avoid the right-angled edges scratching the tube wall and causing stress concentration and fracture of the tube body, while improving the smoothness of tube fitting and separation.

[0029] In a further optimized design, an inflation port is installed at the end of the air cuff 5. The inflation assembly includes a miniature inflatable balloon, and a one-way valve is installed at the port of the miniature inflatable balloon, which is connected to the inflation port. In this embodiment, the air cuff 5 adopts a multi-segment design, forming a corrugated structure on the outer wall, and using rigid restraints inside the concave portion to reduce secondary damage to the wound after separation.

[0030] The air inlet at the end of the air cuff 5, in conjunction with the air inlet channel pre-embedded in the wall of the thick tube, achieves a sealed connection between the cuff and the external micro-inflatable balloon. Medical staff only need to press the external inflatable balloon to inflate the air cuff 5 at a uniform speed, causing the cuff to expand and push the thin tube out of the groove 3. There is no need to open the tubing or use external instruments, and the whole process is closed and sterile. The one-way valve at the port of the micro-inflatable balloon can lock the pressure inside the cuff after inflation, preventing gas backflow that would cause the cuff to shrink back and avoid the thin tube from getting stuck back into the groove 3. This ensures the thoroughness and stability of the thin tube separation and is the core structure for achieving sterile separation in vitro.

[0031] A pressure relief branch with a pressure relief valve is added to the one-way valve. Before the thick tube is pulled out, the gas in the cuff can be released and emptied, so as to avoid the inflated cuff scraping the chest wall tissue and causing secondary damage when the tube is pulled out.

[0032] Further optimization of the design: the main body 1 of the thick tube is made of medical-grade flexible silicone material.

[0033] Further optimization of the design: the main body 2 of the thin tube is made of silicone or polyurethane material.

[0034] A method for operating a balloon-driven detachable double-lumen chest drainage tube includes the following steps: Step 1: Confirm that the thin tube body 2 is tightly fitted into the C-shaped groove 3 on the side wall of the thick tube body 1, and that the air bladder 5 is fully contracted and abuts against the thin tube body 2. Verify the air passage unobstructedness of the inflation component and the air bladder 5 and the sealing of the one-way valve. Insert the rigid guide wire 4 completely into the lumen of the thick tube body 1 to provide puncture support rigidity for the tube body. Step 2: Using the conical implant head at the front end of the thick tube body 1 as a guide, the thick tube body 1 and the thin tube body 2, which are embedded as one unit, are simultaneously percutaneously punctured and placed into the target position in the thoracic cavity. After confirming that the tube is in place, the rigid guide wire 4 inside the thick tube body 1 is pulled out. Step 3: Through the drainage connector at the rear end of the thick tube body 1, and in conjunction with the side hole on the conical implant head, the drainage channel is opened to complete the drainage of pleural effusion and pneumothorax; simultaneously, through the Luer lock connector at the rear end of the thin tube body 2, intrapleural drug administration, irrigation, or pressure monitoring is completed through the independent channel of the thin tube body 2. Step 4: Operate the inflation component connected to the air bladder 5 to inject gas into the air bladder 5 on the inner wall of the groove 3 at a uniform speed, so that the air bladder 5 expands radially and continuously pushes the thin tube body 2 until the thin tube body 2 is completely separated from the structural limit of the C-shaped groove 3, and the tube body is sterilely separated. Step 5: While keeping the air cuff 5 inflated, smoothly pull out the thick tube body 1 from the body along the puncture channel, leaving only the thin tube body 2 in the target treatment position in the thoracic cavity. Step six: Complete the subsequent indwelling treatment through the Luer lock connector at the rear end of the thin tube body 2. Once the treatment reaches the indication for tube removal, completely remove the thin tube body 2 from the body to complete the entire procedure.

[0035] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0036] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A pneumatically driven, detachable double-lumen chest drainage tube, characterized in that, include: The thick tube body (1) has a groove (3) on its side along the length direction, and the cross-section of the groove (3) is a C-shaped structure. The thin tube body (2) has a diameter that matches the diameter of the groove (3) and is embedded in the groove (3); The separation system includes an air bladder (5) and an inflation assembly. The air bladder (5) is installed on the inner wall of the groove (3) and abuts against the thin tube body (2). The inflation assembly is connected to the air inlet end of the air bladder (5). A rigid guide wire (4) is inserted inside the thick tube body (1); The front end of the thick tube body (1) is equipped with a conical implant head, and the conical implant head is provided with several side holes. The rear end of the thick tube body (1) is equipped with a drainage connector. The rear end of the thin tube body (2) is fitted with a Luer lock connector.

2. The airbag-driven detachable double-lumen chest drainage tube according to claim 1, characterized in that, The outer diameter of the main body of the thick pipe (1) is no greater than 8 mm.

3. The airbag-driven detachable double-lumen chest drainage tube according to claim 1, characterized in that, The length of the groove (3) is two-thirds of the length of the thick tube body (1).

4. The airbag-driven detachable double-lumen chest drainage tube according to claim 1, characterized in that, The outer diameter of the thin tube body (2) is no greater than 2 mm, and there is a gap between the front end of the thin tube body (2) and the front end of the groove (3).

5. The airbag-driven detachable double-lumen chest drainage tube according to claim 1, characterized in that, An inflation port is installed at the end of the air bladder (5). The inflation assembly includes a miniature inflatable bladder. A one-way valve is installed at the port of the miniature inflatable bladder. The port of the miniature inflatable bladder is connected to the inflation port.

6. The airbag-driven detachable double-lumen chest drainage tube according to claim 1, characterized in that, The main body of the thick tube (1) is made of medical-grade flexible silicone material.

7. The airbag-driven detachable double-lumen chest drainage tube according to claim 1, characterized in that, The main body of the thin tube (2) is made of silicone or polyurethane material.

8. A method for operating a balloon-driven separable double-lumen chest drainage tube, based on the balloon-driven separable double-lumen chest drainage tube according to any one of claims 1-7, characterized in that, Includes the following steps: Step 1: Confirm that the thin tube body (2) is tightly fitted into the C-shaped groove (3) on the side wall of the thick tube body (1), and that the air bladder (5) is fully contracted and abuts against the thin tube body (2). Verify the air passage unobstructedness of the inflation component and the air bladder (5) and the sealing of the one-way valve. Insert the rigid guide wire (4) completely into the lumen of the thick tube body (1) to provide puncture support rigidity for the tube body. Step 2: Using the cone-shaped implant head at the front end of the thick tube body (1) as a guide, the thick tube body (1) and the thin tube body (2) are simultaneously inserted percutaneously into the target position in the thoracic cavity. After confirming that the tube body is in place, the rigid guide wire (4) inside the thick tube body (1) is pulled out. Step 3: Through the drainage connector at the rear end of the thick tube body (1), and in conjunction with the side hole on the conical implant head, the drainage channel is opened to complete the drainage of pleural effusion and pneumothorax; at the same time, through the Luer lock connector at the rear end of the thin tube body (2), the intrapleural drug administration, irrigation or pressure monitoring operation is completed through the independent channel of the thin tube body (2); Step 4: Operate the inflation component connected to the air bladder (5) and inject gas into the air bladder (5) on the inner wall of the groove (3) at a uniform speed, so that the air bladder (5) expands radially and continuously pushes the thin tube body (2) until the thin tube body (2) is completely separated from the structural limit of the C-shaped groove (3) to achieve sterile separation of the tube body. Step 5: Keep the air cuff (5) inflated and smoothly pull the thick tube body (1) out of the body along the puncture channel, leaving only the thin tube body (2) in the target treatment position in the thoracic cavity. Step 6: Complete the subsequent indwelling treatment through the Luer lock connector at the rear end of the thin tube body (2). After the treatment reaches the extubation indication, completely remove the thin tube body (2) from the body to complete the entire process.

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