Portable multi-pipeline closed thoracic drainage tube

Abstract

The invention relates to the technical field of medical instruments, in particular to a portable multi-pipeline thoracic closed drainage tube which comprises a shell, a fixing tube is connected to the interior of the shell, a hose is connected to the outer side of the fixing tube, a hydrops assembly is arranged at the bottom of the shell, and an exhaust assembly is arranged at the top of the shell. Through the arrangement of the hydrops assembly, a special one-way airtight structural component can be adopted to prevent gas from flowing back to the thoracic cavity, the negative pressure of the thoracic cavity and the drainage of pneumatosis in the thoracic cavity can still be maintained after a water-sealed bottle is abandoned, the effects of portability and safety are achieved, and a pneumothorax patient can be prevented from being hospitalized and recuperated home after catheterization; the drainage device can be pulled out in an outpatient service after the illness state is improved, the cost of a patient is reduced, a drainage bag or a water-sealed bottle can be externally connected to the connector for the patient with pleural effusion, the connector is of a threaded structure, and meanwhile a conversion connector component of a drainage tube of a traditional water-sealed bottle structure can be provided.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a convenient multi-channel closed chest drainage tube. Background Technology

[0002] The traditional closed chest drainage system currently in use requires a water-seal bottle, which is not only heavy and unstable, but also inconvenient to move around in, prone to tipping, leakage, and air leakage, increasing the risk of chest tube dislodgement. It is also detrimental to postoperative activity and recovery, and affects turning over and resting in bed. At the same time, due to placement and fixation angle issues, it is easy to compress the intercostal nerves, leading to severe pain. An improper fixation angle, such as being at a 90° angle to the chest wall, can also cause the tube to be kinked and clamped, resulting in poor drainage. To address these issues, we have proposed a convenient multi-channel closed chest drainage tube. Summary of the Invention

[0003] The purpose of this invention is to provide a convenient multi-channel closed chest drainage tube to solve the problems mentioned in the background art, such as the water-seal bottle being too large, making it inconvenient for patients to move, being easy to tip over, leaking fluid and air, increasing the risk of chest tube dislodgement, hindering postoperative activity and rehabilitation, and affecting turning over and resting in bed.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a convenient multi-channel closed chest drainage tube, comprising an outer shell, a fixing tube connected inside the outer shell, a flexible tube connected outside the fixing tube, a fluid accumulation component at the bottom of the outer shell, and a venting component at the top of the outer shell;

[0005] The liquid accumulation assembly includes a connecting pipe and a valve switch. The bottom of the housing is connected to the connecting pipe, and the valve switch is installed inside the connecting pipe. The connecting pipe is connected to the inside of the housing.

[0006] Preferably, the exhaust assembly includes a protective cover, a diaphragm, a retaining ring, and a guide core. The protective cover is fixedly connected to the inner wall of the housing, the diaphragm is fixedly connected to the inside of the protective cover, a retaining ring is inserted into the outer side of the housing, and a guide core is disposed at the center of the retaining ring.

[0007] Preferably, an airbag is connected to the outside of the fixing tube, and a connecting groove is formed on the inner wall of the connecting tube.

[0008] Preferably, the exhaust assembly further includes a connecting ring, a positioning plate, a pressing button, and exhaust holes. The bottom of the retaining ring is fixedly connected to the connecting ring, the other end of the connecting ring is connected to the positioning plate, the center of the inner wall of the positioning plate is fixedly connected to the guide core, the other side of the positioning plate is fixedly connected to the pressing button, and the inner wall of the connecting ring is provided with exhaust holes at equal intervals.

[0009] Preferably, a connecting joint is fixedly connected to the bottom of the connecting pipe, and the outer surface of the connecting joint is threaded.

[0010] Preferably, the outer casing has a slot inside, and the edge of the retaining ring is fixedly connected to a retaining lug.

[0011] Preferably, the outer shell and the hose form an L-shaped structure.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This invention, through the design of the effusion assembly, utilizes a special one-way airtight structure with a built-in silicone valve, allowing only the accumulating air and fluid in the pleural cavity to drain outwards, completely blocking the backflow of external air or drainage fluid into the pleural cavity, effectively avoiding the risk of infection and recurrence of pneumothorax; it does not rely on the gravity drainage mode of traditional water-seal bottles, and through the pressure self-regulating design inside the assembly, it can continuously maintain a stable negative pressure environment in the pleural cavity after the water-seal bottle is discarded, ensuring smooth drainage of accumulating air, and playing a convenient, safe and efficient drainage role.

[0014] 2. For patients with pneumothorax, this invention allows them to return home to recuperate after catheter placement in an outpatient setting, eliminating the need for long-term hospitalization and significantly reducing daily activities. Patients only need to undergo regular outpatient checkups to monitor disease progression. Once the lung tissue has re-expanded well, the drainage device can be quickly removed in the outpatient setting, significantly reducing hospitalization time and related medical expenses. For patients with pleural effusion, a disposable drainage bag or a traditional water-seal bottle can be flexibly connected via a connector. Connecting a drainage bag facilitates daily patient movement and monitoring of effusion volume, while connecting a water-seal bottle is suitable for scenarios requiring precise control of drainage speed or long-term drainage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0016] Figure 1 This is a front view schematic diagram of the structure of the present invention;

[0017] Figure 2 For the present invention Figure 1 A schematic cross-sectional view of the inner and outer shell structure;

[0018] Figure 3 This is a schematic diagram of the liquid accumulation component of the present invention;

[0019] Figure 4 This is a schematic diagram of the exhaust assembly of the present invention;

[0020] Figure 5 This is a schematic diagram of the structural insertion state of the exhaust assembly of the present invention;

[0021] Figure 6 For the present invention Figure 2 A magnified view of part A in the diagram;

[0022] Figure 7 For the present invention Figure 5 A magnified view of part B in the diagram.

[0023] In the diagram: 1. Outer shell; 2. Fixing tube; 201. Airbag; 202. Connecting groove; 3. Hose; 4. Liquid collection assembly; 401. Connecting tube; 402. Valve switch; 403. Connecting joint; 5. Exhaust assembly; 501. Protective cover; 502. Diaphragm; 503. Snap ring; 504. Connecting ring; 505. Positioning plate; 506. Guide core; 507. Press button; 508. Exhaust port; 509. Snap groove; 510. Fixing lug. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-7 This invention provides an embodiment of a convenient multi-channel closed chest drainage tube, comprising an outer shell 1 made of transparent medical-grade polypropylene for easy real-time observation of internal fluid levels or gas flow, enabling timely detection of drainage abnormalities; a fixing tube 2 is connected internally to the outer shell 1, made of medical-grade rigid polycarbonate to ensure tube support and prevent deformation under pressure; a flexible tube 3 is connected externally to the fixing tube, made of highly elastic medical-grade silicone, which is flexible and can be adjusted flexibly according to changes in patient position, reducing discomfort from tube traction; a fluid collection component 4 is provided at the bottom of the outer shell 1, and a venting component is provided at the top of the outer shell 1. 5; The fluid collection component 4 includes a connecting pipe 401 and a valve switch 402. The bottom of the outer shell 1 is connected to the connecting pipe 401, which is a medical PVC pipe with an inner diameter of 10mm. The pipe wall is smooth to reduce fluid residue, and it is integrally injection molded with the outer shell 1 to improve sealing. The connecting pipe 401 is equipped with a plug valve switch 402. Two sets of medical nitrile rubber sealing rings are fitted at the opening of the valve switch 402, which are located on the inner wall of the valve and the connecting pipe and the outlet end, respectively, forming a double sealing barrier to enhance sealing and prevent drainage fluid leakage or external air intrusion. The connecting pipe 401 is connected to the inside of the outer shell 1.

[0026] This device, through the inclusion of the effusion assembly 4 and the exhaust assembly 5, solves the problems of excessively large water-seal bottles, which hinder patient movement, are prone to tipping over, leak liquid and air, increase the risk of chest tube dislodgement, impede postoperative activity and rehabilitation, and affect turning over and resting in bed.

[0027] Furthermore, the exhaust assembly 5 includes a protective cover 501, a diaphragm 502, a retaining ring 503, and a guide core 506. The protective cover 501, made of medical-grade ABS plastic, is fixedly connected to the inner wall of the outer shell 1. It is impact-resistant and effectively protects the internal diaphragm from external damage. The diaphragm 502, made of 0.8mm thick medical-grade silicone rubber, is fixedly connected inside the protective cover 501. It has high elasticity and self-sealing properties and is normally closed, preventing outside air from entering the chest cavity. A retaining ring 503, made of medical-grade polypropylene, is inserted into the outer side of the outer shell 1. The ring has an anti-slip texture for easy gripping and operation. A guide core 506, made of rigid medical-grade material, is located at the center of the retaining ring 503. Figure 4 As shown, the operating procedure of this structure is as follows: by vertically pressing the retaining ring 503, the guide core 506 is slowly inserted and breaks through the diaphragm 502, at which point the protective cover 501 and the interior of the outer shell 1 form a communication channel; after the initial venting is completed, the retaining ring 503 can be pulled to remove the guide core 506 as a whole. Two processing methods can be selected according to clinical needs: if it is necessary to temporarily stop venting, a matching medical sealing cap is placed on the outlet of the protective cover 501, and a threaded engagement design is used to ensure a seal; if it is necessary to continuously vent or collect gas, an external pipeline is connected, and a standard medical oxygen tube or negative pressure suction tube interface is used to facilitate the directional discharge of gas or the analysis of its components. This design achieves safety and flexibility in venting operation through the self-sealing characteristics of the diaphragm and the controllable breakthrough of the guide core, reducing the risk of infection and fluctuations in intrathoracic pressure during the operation.

[0028] Furthermore, an air bladder 201 (made of medical-grade high-elasticity silicone material with good biocompatibility and aging resistance) is connected to the outside of the fixation tube 2. The side wall of the fixation tube 2 has a micro-inflation hole communicating with the air bladder 201, allowing 0.5-1 ml of sterile saline or air to be injected into the air bladder via an external syringe to inflate it. The inner wall of the connecting tube 401 has three axially distributed arc-shaped connecting grooves 202 (each groove is 2 mm wide and 1.5 mm deep, evenly surrounding the inner wall). Figure 6As shown, the working logic of this structure is as follows: After inserting the bottom tube of the fixing tube 2 into the connecting tube 401, the air bag 201 is inflated through the inflation port. The inflated air bag fits tightly against the inner wall of the connecting tube 401, which not only firmly fixes the fixing tube 2 inside the connecting tube 401, preventing the tube from detaching or shifting due to changes in the patient's position, but also seals the gap between the fixing tube and the connecting tube to prevent fluid leakage. Meanwhile, the connecting groove 202 on the inner wall maintains the gas flow channel even when the air bag is inflated, ensuring that the gas in the pleural cavity can smoothly pass through the fixing tube 2 into the connecting tube 401 and be discharged. This design takes into account both the stability of the tube fixation and the unobstructed flow of gas, reduces the discomfort caused by tube traction during patient activity, and lowers the risk of drainage interruption.

[0029] Furthermore, the exhaust assembly 5 also includes a connecting ring 504, a positioning plate 505, a push button 507, and exhaust holes 508. The bottom of the retaining ring 503 is fixedly connected to the connecting ring 504, which is integrally injection molded with the retaining ring 503. The other end of the connecting ring 504 is connected to the positioning plate 505. A guide core 506 is fixedly connected to the center of the inner wall of the positioning plate 505. The other side of the positioning plate 505 is fixedly connected to the push button 507, which has an anti-slip texture to facilitate stable operation by medical staff or patients. The inner wall of the connecting ring 504 has six 1mm diameter circular exhaust holes 508 evenly spaced. Figure 5 As shown, the operating logic of this structure is as follows: By continuously pressing the button 507, the guide core 506 slowly breaks through the diaphragm 502 and remains inserted, while simultaneously moving the retaining ring 503 into the protective cover 501 until the connecting ring 504 is flush with the retaining ring 503. At this point, the vent hole 508 on the inner wall of the connecting ring 504 is fully exposed. The pleural gas inside the outer shell 1 enters the protective cover 501 through the fixing tube 2, flows into the connecting ring 504 through the gap between the diaphragm 502 and the guide core 506, and is then directionally discharged through the vent hole 508. This design achieves a controllable continuous venting function, avoiding sudden decompression from stimulating the pleural cavity. At the same time, the uniform distribution of the vent holes ensures smooth gas flow, reduces noise and airflow impact, and improves patient comfort.

[0030] Furthermore, a connecting joint 403 is fixedly connected to the bottom of the connecting pipe 401, and the outer surface of the connecting joint 403 is threaded. Figure 3 As shown, this structure facilitates the connection of external drainage bags to the threads of the connector 403 via the connection joint 403. The connector 403 adopts a standard medical thread structure to ensure a tight and leak-free connection with various drainage devices. At the same time, it is equipped with a conversion connector component that is compatible with traditional water-seal bottle drainage tubes, achieving seamless compatibility with existing clinical equipment and lowering the threshold for clinical promotion.

[0031] Furthermore, the interior of the outer casing 1 has a slot 509, and the edge of the retaining ring 503 is fixedly connected to a retaining lug 510. For example... Figure 7As shown, this structure is used to adapt the fixing ear 510 to the card slot 509, so as to facilitate the insertion and removal of the card ring 503.

[0032] Furthermore, the outer casing 1 and the flexible hose 3 form an L-shaped structure. For example... Figure 1 As shown, this structure uses an L-shaped feature to facilitate pipe connection and avoid 90-degree bends in the pipe, thus avoiding the problem of poor drainage caused by pipe kinking when fixing traditional drainage pipes.

[0033] Working principle: When using, such as Figure 1 and Figure 2 As shown, according to the patient's needs, when drainage is required, the drainage bag is connected via connector 403, and the tubing 3 is connected to the patient's intubation tube. After confirming a tight connection, the valve switch 402 is opened. The accumulated fluid flows from the tubing 3 through the fixing tube 2 into the connecting tube 401, and then through the valve switch 402 and connector 403 into the drainage bag. When air is required, as... Figure 2 and Figure 4 As shown, connect the connector 403 to the water seal bottle or liquid storage component to achieve a "water seal" effect. Then, press the retaining ring 503 to insert the guide core 506 into the diaphragm 502, connecting the protective cover 501 to the inside of the outer shell 1. Then pull the retaining ring 503, as shown. Figure 7 As shown, the fixing ear 510 is disengaged from the slot 509, and the guide core 506 is removed as a whole. A sealing cap is placed over the notch or an external pipeline is connected to facilitate gas discharge or centralized collection. Figure 5 As shown, the button 507 can also be pressed continuously to make the guide core 506 break through the diaphragm 502 and drive the retaining ring 503 to move into the protective cover 501, keeping the connecting ring 504 flush with the retaining ring 503, so that the exhaust hole 508 inside the connecting ring 504 is exposed. The gas inside the outer shell 1 enters the protective cover 501 through the gap of the diaphragm 502, and then exits through the exhaust hole 508. The above is the entire working principle of the present invention.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A convenient multi-channel closed chest drainage tube, characterized in that: Includes an outer shell (1), with a fixed tube (2) connected inside the outer shell (1), a flexible tube (3) connected outside the fixed tube (2), a liquid accumulation assembly (4) provided at the bottom of the outer shell (1), and an exhaust assembly (5) provided at the top of the outer shell (1). The liquid accumulation assembly (4) includes a connecting pipe (401) and a valve switch (402). The bottom of the outer shell (1) is connected to the connecting pipe (401), and the valve switch (402) is installed inside the connecting pipe (401). The connecting pipe (401) is connected to the inside of the outer shell (1).

2. The convenient multi-channel closed chest drainage tube according to claim 1, characterized in that: The exhaust assembly (5) includes a protective cover (501), a diaphragm (502), a retaining ring (503), and a guide core (506). The protective cover (501) is fixedly connected to the inner wall of the outer shell (1). The diaphragm (502) is fixedly connected to the inside of the protective cover (501). The retaining ring (503) is inserted into the outer side of the outer shell (1). The guide core (506) is located at the center of the retaining ring (503).

3. A convenient multi-channel closed chest drainage tube according to claim 1, characterized in that: An airbag (201) is connected to the outside of the fixed tube (2), and a connecting groove (202) is provided on the inner wall of the connecting tube (401).

4. A convenient multi-channel closed chest drainage tube according to claim 2, characterized in that: The exhaust assembly (5) further includes a connecting ring (504), a positioning plate (505), a pressing button (507), and an exhaust hole (508). The bottom of the retaining ring (503) is fixedly connected to the connecting ring (504), and the other end of the connecting ring (504) is connected to the positioning plate (505). The center of the inner wall of the positioning plate (505) is fixedly connected to the guide core (506), and the other side of the positioning plate (505) is fixedly connected to the pressing button (507). The inner wall of the connecting ring (504) is provided with exhaust holes (508) at equal intervals.

5. A convenient multi-channel closed chest drainage tube according to claim 1, characterized in that: The bottom of the connecting pipe (401) is fixedly connected to a connecting joint (403), and the outer surface of the connecting joint (403) is threaded.

6. A convenient multi-channel closed chest drainage tube according to claim 4, characterized in that: The outer shell (1) has a slot (509) inside, and the edge of the retaining ring (503) is fixedly connected with a fixing ear (510).

7. A convenient multi-channel closed chest drainage tube according to claim 1, characterized in that: The outer shell (1) and the hose (3) form an L-shaped structure.

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