Thoracic closed drainage equipment for pneumology department

Abstract

The invention discloses thoracic closed drainage equipment for the pneumology department. The thoracic closed drainage equipment comprises a drainage bottle and a base. The drainage bottle comprises a first containing cavity, a second containing cavity, a third containing cavity, a gas-liquid inlet pipe, a first guide pipe, a second guide pipe, a gas exhaust pipe and a pressure adjusting pipe. The gas-liquid inlet pipe, the first containing cavity, the first guide pipe, the second containing cavity, the second guide pipe, the third containing cavity and the gas exhaust pipe are sequentially connected in the gas flowing direction. An outlet of the first guide pipe extends into the bottom of the second accommodating cavity; an outlet of the pressure regulating pipe is communicated with the external environment, and an air outlet of the pressure regulating pipe extends into the bottom of the third accommodating cavity; the drainage bottle is pivoted to the base. The effects of independently collecting chest drainage liquid in the first containing cavity, treating drainage gas, discharging the drainage gas out of the drainage equipment through the gas discharging pipe and adjusting negative pressure are achieved. Effective extraction of hydrops and pneumatosis in the thoracic cavity of a patient is promoted. Overturning and dumping of the drainage bottle are facilitated, and the treatment process of drainage liquid in the first containing cavity is simplified.

Description

Technical Field

[0001] This invention relates to the field of suction device technology, and more particularly to a closed thoracic drainage device for respiratory medicine. Background Technology

[0002] A closed thoracic drainage device is a medical device that establishes a one-way channel through a water seal. Its core function is to safely drain gas or fluid from the thoracic cavity while preventing air backflow, helping to restore negative pressure in the thoracic cavity and promoting lung re-expansion. It is a key treatment tool that utilizes a liquid seal barrier to achieve controlled, closed drainage, used to treat pleural conditions such as pneumothorax, hemothorax, and effusion. Existing closed thoracic drainage devices use a one-piece design, which imposes certain limitations during use. After use, the fluid inside the device needs to be treated to render it harmless before being drained. However, because the device is not disassembled, the drainage process is complex and difficult to operate, resulting in the solution not flowing out smoothly. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a closed thoracic drainage device for respiratory medicine, which can conveniently drain fluid.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A closed chest drainage device for respiratory medicine includes:

[0006] A drainage bottle includes a first receiving cavity, a second receiving cavity, a third receiving cavity, a gas-liquid inlet tube, a first guide tube, a second guide tube, a gas outlet tube, and a pressure regulating tube. The gas-liquid inlet tube, the first receiving cavity, the first guide tube, the second receiving cavity, the second guide tube, the third receiving cavity, and the gas outlet tube are connected sequentially along the gas flow direction. The first receiving cavity is used to receive the accumulated liquid flowing into the gas-liquid inlet tube. The second receiving cavity is used to receive sterile saline. The outlet of the first guide tube extends to the bottom of the second receiving cavity. The third receiving cavity is used to receive sterile saline. The gas outlet tube is used to discharge gas from the third receiving cavity. The outlet of the pressure regulating tube is connected to the external environment, and the outlet of the pressure regulating tube extends to the bottom of the third receiving cavity.

[0007] The base to which the drainage bottle is pivotally connected allows it to be tilted relative to the base.

[0008] Furthermore, the middle section of the first guide tube is located outside the drainage bottle and forms a ring structure with the top of the drainage bottle; the middle section of the second guide tube is located outside the drainage bottle and forms a ring structure with the top of the drainage bottle.

[0009] Furthermore, hooks are fitted onto the middle segments of both the first guide tube and the second guide tube, and the hooks are used to suspend the side of the hospital bed.

[0010] Furthermore, the drainage bottle includes a bottle body and a bottle cap, and the gas-liquid inlet tube, the first guide tube, the second guide tube, the gas outlet tube, and the pressure regulating tube are all inserted into the bottle cap.

[0011] Furthermore, a locking device is provided between the bottle cap and the bottle body. The locking device includes a mounting base, a pull ring, and a pull hook. The pull ring is hinged to the mounting base. One of the mounting base and the pull hook is located on the bottle cap, and the other is located on the bottle body. When the pull ring is located inside the pull hook, the bottle body and the bottle cap are locked together.

[0012] Furthermore, one of the drainage bottle and the base is provided with a pivot block, and the other is provided with a pivot hole that mates with the pivot block; there are two pivot blocks and two pivot holes, which correspond one to one; the two pivot blocks are located on opposite sides of the drainage bottle.

[0013] Furthermore, baffles are detachably connected to opposite sides of the base adjacent to the pivot hole, and the bottom of the drainage bottle is located between the two baffles.

[0014] Furthermore, the base is hinged with rollers, and there are multiple rollers, each of which is equipped with a locking mechanism.

[0015] Furthermore, the top of the drainage bottle is provided with an upwardly extending clamping rod, the clamping rod is provided with a gripper, the gripper is used to clamp the gas-liquid inlet tube.

[0016] Furthermore, the base is equipped with a handrail.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. The equipment, through the coordinated action of the first receiving chamber, the second receiving chamber, the third receiving chamber, the gas-liquid inlet pipe, the first guide pipe, the second guide pipe, the gas outlet pipe, and the pressure regulating pipe, achieves the independent collection of pleural drainage fluid in the first receiving chamber, the treatment of drainage gas and its discharge from the drainage equipment through the gas outlet pipe, and the regulation of negative pressure.

[0019] 2. The third receiving chamber is submerged to a specific depth below the liquid surface of the second receiving chamber through the end of its pressure regulating tube, forming and maintaining a preset negative pressure state. This negative pressure acts on the drainage system to promote the effective drainage of pleural effusion and gas in the patient. At the same time, the negative pressure suction intensity can be set and maintained by adjusting the pressure regulating tube.

[0020] 3. The main body of the drainage bottle and the fixed base adopt a pivot connection design, which allows the drainage bottle to rotate around the pivot at a large angle. This structural design makes it easy for operators to perform the action of flipping and tilting the drainage bottle, simplifying the process of handling the drainage fluid in the first receiving cavity. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the closed thoracic drainage device for respiratory medicine according to the present invention.

[0022] Figure 2 for Figure 1 The sectional view shown;

[0023] Figure 3 for Figure 1 The diagram shows the structure of the base.

[0024] In the diagram: 1. First receiving cavity; 2. Second receiving cavity; 3. Third receiving cavity; 4. Gas-liquid inlet pipe; 5. First guide pipe; 6. Second guide pipe; 7. Gas outlet pipe; 8. Pressure regulating pipe; 9. Base; 10. Hook; 11. Bottle body; 12. Bottle cap; 13. Mounting base; 14. Pull ring; 15. Pull hook; 16. Pivot block; 17. Pivot hole; 18. Baffle; 19. Roller; 20. Locking mechanism; 21. Clamping rod; 22. Gripper; 23. Hand lever. Detailed Implementation

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] See Figures 1-3A preferred embodiment of the present invention provides a closed thoracic drainage device for respiratory medicine, comprising: a drainage bottle and a base 9.

[0029] The drainage bottle includes a first receiving cavity 1, a second receiving cavity 2, a third receiving cavity 3, a gas-liquid inlet tube 4, a first guide tube 5, a second guide tube 6, a gas outlet tube 7, and a pressure regulating tube 8. The gas-liquid inlet tube 4, the first receiving cavity 1, the first guide tube 5, the second receiving cavity 2, the second guide tube 6, the third receiving cavity 3, and the gas outlet tube 7 are connected sequentially along the gas flow direction. The first receiving cavity 1 is used to receive the accumulated liquid flowing into the gas-liquid inlet tube 4. The second receiving cavity 2 is used to receive sterile saline. The outlet of the first guide tube 5 extends to the bottom of the second receiving cavity 2. The third receiving cavity 3 is used to receive sterile saline. The gas outlet tube 7 is used to discharge the gas in the third receiving cavity 3. The outlet of the pressure regulating tube 8 is connected to the external environment, and the outlet of the pressure regulating tube 8 extends to the bottom of the third receiving cavity.

[0030] The gas-liquid inlet tube 4 guides the accumulated fluid and gas in the patient's body to the first receiving chamber 1. The main function of the first receiving chamber 1 is to contain the accumulated fluid and retain the liquid within it, while the gas flows through the first guide tube 5 to the second receiving chamber 2. The second receiving chamber 2 contains sterile saline or disinfectant liquid, which effectively disinfects and purifies the gas as it passes through, reducing the potential risk of infection. The disinfected and purified gas flows through the second guide tube 6 to the third receiving chamber 3. The third receiving chamber 3 acts as a pressure regulator, maintaining a negative pressure state inside to ensure the smooth discharge of gas. The gas in the third receiving chamber 3 is discharged through the gas outlet tube 7, which is connected to a suction device. This device suctions the third receiving chamber 3, thereby maintaining the negative pressure environment within it. The third receiving chamber 3 also contains sterile saline. The pressure regulating tube 8 is partially located inside the third receiving chamber 3 and partially located in the external environment, thus connecting the third receiving chamber 3 with the external environment. The outlet of the pressure regulating tube 8 is located below the surface of the sterile saline solution. When the negative pressure in the third receiving chamber 3 is too high, ambient gas can enter the third receiving chamber 3 through the pressure regulating tube 8, thus preventing excessive negative pressure from adversely affecting the patient. Furthermore, the outlet of the pressure regulating tube 8 being below the liquid surface forms an effective liquid seal, preventing gas from escaping from the tube and ensuring the safety and stability of the drainage. By adjusting the depth of immersion of the end of the pressure regulating tube 8 below the liquid surface, the negative pressure value of the third receiving chamber 3 can be controlled; an increase in the immersion depth of the pressure regulating tube 8 results in a corresponding increase in the negative pressure generated in the third receiving chamber 3, and vice versa.

[0031] The drainage bottle is pivotally connected to the base 9, allowing it to be tilted relative to the base 9. The sidewall of the drainage bottle is pivotally connected to the base 9, a design that enables the drainage bottle to swing relative to the base 9. When liquid needs to be drained from the drainage bottle, it can be grasped and rotated or swung around the pivot axis of the base 9 to adjust the tilt angle until the opening faces downwards. Under the influence of gravity, the liquid in the drainage bottle flows smoothly from the opening, completing the tilting operation. This method not only effectively drains the liquid from the drainage bottle but also reduces liquid residue. Furthermore, this design facilitates subsequent cleaning and disinfection of the drainage bottle, preventing biological contamination.

[0032] Working Principle: Gas and liquid enter the first receiving chamber 1 through the gas-liquid inlet pipe 4. The main function of this chamber is to retain the accumulated liquid. The first guide pipe 5 guides the gas to the second receiving chamber 2, which contains sterile saline or disinfectant. The outlet of the first guide pipe 5 is located below the liquid surface, allowing for effective disinfection and purification of the gas as it passes through these liquids. The purified gas then enters the third receiving chamber 3 through the second guide pipe 6. The third receiving chamber 3 maintains a negative pressure state to ensure smooth gas discharge. The gas in the third receiving chamber 3 is discharged through the gas discharge pipe 7, which is connected to a suction device that continuously suctions the third receiving chamber 3 to maintain the negative pressure environment. The third receiving chamber 3 also contains sterile saline. The pressure regulating pipe 8 extends partly below the liquid surface in the chamber and partly communicates with the outside, thus connecting the third receiving chamber 3 with the external environment. When the negative pressure in the third receiving chamber 3 becomes too high, external gas can enter the chamber through the pressure regulating pipe 8, forming a liquid seal and effectively preventing gas from overflowing from the pressure regulating pipe 8. The side wall of the drainage bottle is pivotally connected to the base 9, allowing the tilt angle of the drainage bottle to be adjusted so that the inlet faces downwards. The gas-liquid inlet tube 4 is located at the top of the first receiving cavity 1. After the drainage bottle is inverted, the inlet of the gas-liquid inlet tube 4 is located below the drainage bottle. Under the action of gravity, the liquid in the drainage bottle can be smoothly discharged, reducing liquid residue.

[0033] Clearly, the device, through the coordinated action of the first receiving chamber 1, the second receiving chamber 2, the third receiving chamber 3, the gas-liquid inlet tube 4, the first guide tube 5, the second guide tube 6, the gas outlet tube 7, and the pressure regulating tube 8, achieves the independent collection of pleural drainage fluid in the first receiving chamber 1, the processing of drainage gas and its discharge through the gas outlet tube 7, and the regulation of negative pressure. The third receiving chamber 3, through the end of its pressure regulating tube 8, is submerged to a specific depth below the liquid surface in the second receiving chamber 2, forming and maintaining a preset negative pressure state. This negative pressure acts on the drainage system, promoting the effective drainage of pleural effusion and gas in the patient. Simultaneously, the negative pressure suction intensity is set and maintained by adjusting the pressure regulating tube 8. The drainage bottle body and the fixed base 9 adopt a pivot connection design, allowing the drainage bottle to rotate at a large angle around the pivot. This structural design facilitates the operator to perform the action of tilting and emptying the drainage bottle, discharging the liquid inside through the gas-liquid inlet tube 4, simplifying the processing procedure of the drainage fluid in the first receiving chamber 1.

[0034] The middle segment of the first guide tube 5 is located outside the drainage bottle and forms a ring structure with the top of the drainage bottle; the middle segment of the second guide tube 6 is also located outside the drainage bottle and forms a ring structure with the top of the drainage bottle. The ring structure formed by the middle segments of the first guide tube 5 and the second guide tube 6 with the top of the drainage bottle provides a convenient gripping point for both the patient and medical staff. This allows for easy gripping when the patient gets out of bed or when medical staff need to move the drainage device. This design improves the portability of the device, allowing it to move more easily with the patient and reducing interference and inconvenience during movement. The gripping part, while held by hand, maintains the guidance of liquid and gas, preventing blockage and ensuring smooth flow of gas and liquid during drainage. This enhances the stability and reliability of the drainage process and further optimizes the medical operation procedure.

[0035] In this embodiment, preferably, hooks 10 are fitted onto the middle segments of the first guide tube 5 and the second guide tube 6, respectively, for hanging from the side of the bed. When the patient is resting in bed, the closed thoracic drainage device can be securely suspended from the bedside via the hooks 10. This fixing method is convenient and ensures the stability of the device during use. Since the drainage mechanism of this device mainly relies on the negative pressure generated by the suction device, there is no need to strictly limit the vertical height difference between the drainage device and the patient. The device can be directly suspended for use, and medical staff and patients do not need to worry about the potential adverse effects on the drainage effect due to height differences. The hooks 10 are fitted onto the middle segments of the first guide tube 5 and the second guide tube 6, and can be slidably adjusted in the corresponding middle segments. This sliding allows the device to flexibly adapt to the differences in the hanging areas of different beds, greatly enhancing the versatility and flexibility of the device. Medical staff can easily adjust the position of the hooks 10 according to the actual situation to ensure that the device can be securely suspended, thereby better meeting diverse clinical needs and improving the convenience and applicability of use. It is understood that, as an alternative implementation, the hook 10 can also be pivotally connected to the top of the drainage bottle, and its pivoting position does not interfere with the normal operation of the drainage device.

[0036] The drainage bottle comprises a bottle body 11 and a cap 12. The gas-liquid inlet tube 4, the first guide tube 5, the second guide tube 6, the gas outlet tube 7, and the pressure regulating tube 8 are all inserted into the cap 12. The drainage bottle consists of two parts: the bottle body 11 and the cap 12. The cap 12 is detachably connected to the bottle body 11, facilitating disassembly when needed. During use, when the amount of fluid accumulated in the first receiving cavity 1 reaches a level requiring replacement of the drainage bottle, medical personnel can remove the drainage bottle from the closed thoracic drainage device. The cap 12 is then opened at an appropriate location to empty the liquid inside, which is then disposed of according to the classification requirements for medical waste. This method enables the separation of wet and dry medical waste, ensuring proper management and disposal, reducing the risk of infection, and improving the efficiency and safety of medical waste treatment. It is understood that, as an alternative implementation, the gas-liquid inlet pipe 4, the first guide pipe 5, the second guide pipe 6, the gas outlet pipe 7, and the pressure regulating pipe 8 are all inserted into the bottle cap 12, with each pipe connected to the bottle cap 12. The bottle body 11 is mainly used to contain the liquid. When replacing the bottle body 11, the gas-liquid inlet pipe 4 must first be closed to prevent liquid leakage and contamination. Subsequently, the bottle body 11 can be removed from the bottle cap 12 for replacement. It is not necessary to replace the entire drainage device; only the bottle body 11 needs to be replaced, significantly reducing replacement costs. When installing a new sterile bottle body 11, it is essential to ensure a good seal between the bottle cap 12 and the bottle body 11 to maintain the airtightness of the drainage bottle. Good airtightness is crucial for ensuring the normal operation and safety of the entire drainage system, as it prevents external air and contaminants from entering the system, reduces the risk of infection, and ensures the smooth progress of the drainage process.

[0037] In this embodiment, preferably, a locking device is provided between the bottle cap 12 and the bottle body 11. The locking device includes a mounting base 13, a pull ring 14, and a pull hook 15. The pull ring 14 is hinged to the mounting base 13. One of the mounting base 13 and the pull hook 15 is located on the bottle cap 12, and the other is located on the bottle body 11. When the pull ring 14 is located inside the pull hook 15, the bottle body 11 and the bottle cap 12 are locked together. By controlling the relative position of the pull ring 14 and the pull hook 15, the opening or closing state of the bottle cap 12 can be controlled. When the pull ring 14 is located inside the pull hook 15, the bottle cap 12 is in the closed state, and the pull ring 14 and the pull hook 15 abut against each other, thereby firmly locking the bottle cap 12 and the bottle body 11 together. At this time, the first receiving cavity 1, the second receiving cavity 2, and the third receiving cavity 3 are all completely isolated from the external environment, ensuring the airtightness of the cavity and effectively preventing the intrusion of outside air. When it is necessary to pour out or replace the liquid in the drainage bottle, the operator can open the locking device, that is, release the abutment between the pull ring 14 and the pull hook 15, thereby releasing the locking state between the bottle body 11 and the bottle cap 12. The bottle cap 12 can then be opened smoothly, allowing medical staff to conveniently pour out the liquid in the drainage bottle and facilitate the processing of the contents of the bottle, ensuring the subsequent processing efficiency of the drainage device.

[0038] One of the drainage bottle and the base 9 is provided with a pivot block 16, and the other is provided with a pivot hole 17 that mates with the pivot block 16; there are two pivot blocks 16 and two corresponding pivot holes 17; the two pivot blocks 16 are located on opposite sides of the drainage bottle. The drainage bottle is pivotally connected to the base 9, a design that allows the drainage bottle to be flipped relative to the base 9 for easy emptying of the internal liquid. The pivot structure between the base 9 and the drainage bottle effectively supports the weight of the drainage bottle, and only a small force is needed to easily flip the bottle. This not only makes the liquid emptying process more effortless and convenient, but also effectively reduces any liquid residue that may occur during operation, ensuring that the liquid in the drainage bottle is completely drained.

[0039] In this embodiment, preferably, baffles 18 are detachably connected to opposite sides of the base 9 adjacent to the pivot hole 17, with the bottom of the drainage bottle located between the two baffles 18. The baffles 18 on the base 9 are positioned in the swing direction of the drainage bottle, and their main function is to prevent unnecessary swinging of the drainage bottle. When the liquid in the drainage bottle needs to be poured out, the baffles 18 can be detached, allowing the drainage bottle to swing freely for easy pouring. During drainage, the presence of the baffles 18 effectively prevents the drainage tube from being dragged due to accidental swinging of the drainage bottle, thereby avoiding traction on the patient's wound and ensuring a smooth and safe drainage process. This design not only improves the stability of the device but also enhances the patient's comfort during drainage, reducing wound traction that may result from device swinging. It is understood that, as an alternative implementation, the connection between the baffles 18 and the base 9 is designed as a destructible structure. During normal use of the drainage bottle, the baffles 18 effectively prevent the bottle from swinging, ensuring its stability. When the drainage bottle is finished and needs to be disposed of, the baffle 18 can be removed by destructive dismantling. After removal, the liquid in the drainage bottle can be poured out directly, and then the baffle 18 can be disposed of together with other solid waste without having to reconnect the baffle 18 to the base 9. This connection design is not only convenient to operate, but also effectively saves costs and improves the efficiency of medical waste disposal.

[0040] In this embodiment, preferably, the base 9 is hinged with multiple rollers 19, each equipped with a locking mechanism 20. When the patient needs to get out of bed during rehabilitation, the multiple rollers 19 hinged to the base 9 significantly improve the portability of the device, allowing the patient or medical staff to move the drainage device flexibly as needed. When the patient needs to rest in bed, the drainage bottle can be securely suspended from the side of the bed via hooks 10, or placed directly on the floor under the bed. In this case, to prevent the drainage device from sliding due to its own movement or external force, which could pull on the drainage tube, affect the drainage effect, or cause patient discomfort, the locking mechanism 20 on the rollers 19 needs to be locked. By locking the rollers 19, it can be ensured that the rollers 19 cannot roll, the drainage device remains in a fixed position, maintaining the stability and safety of the drainage process and reducing the potential dangers caused by device movement.

[0041] In this embodiment, preferably, the top of the drainage bottle is provided with an upwardly extending clamping rod 21, and the clamping rod 21 is provided with a clamping claw 22, which is used to clamp the gas-liquid inlet tube 4. The top of the drainage bottle is provided with a vertically extending clamping rod 21, the end of which is provided with an adjustable clamping claw 22; the clamping claw 22 is used to fix the gas-liquid inlet tube 4, maintain the vertical spatial posture of the drainage tube, and eliminate the risk of drainage tube blockage caused by tube bending, coiling and entanglement. This structure ensures smooth drainage by constraining the axial path of the tube, ensuring that the patient's accumulated fluid and gas can be drained smoothly.

[0042] The base 9 is equipped with a handrail 23. The handrail 23 is pivotally connected to the side wall of the base 9, allowing it to rotate relative to the base 9. The top crossbar of the handrail forms an operating grip area and is treated with an anti-slip surface. Its geometry is mechanically optimized so that the grip position is above the system's center of gravity, ensuring force balance control during one-handed operation.

[0043] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A closed chest drainage device for respiratory medicine, characterized in that, include: A drainage bottle, comprising a first receiving cavity (1), a second receiving cavity (2), a third receiving cavity (3), a gas-liquid inlet tube (4), a first guide tube (5), a second guide tube (6), a gas outlet tube (7), and a pressure regulating tube (8). The gas-liquid inlet tube (4), the first receiving cavity (1), the first guide tube (5), the second receiving cavity (2), the second guide tube (6), the third receiving cavity (3), and the gas outlet tube (7) are connected sequentially along the gas flow direction. The first receiving cavity (1) is used to receive the accumulated liquid flowing into the gas-liquid inlet tube (4), the second receiving cavity (2) is used to receive sterile saline, the outlet of the first guide tube (5) extends to the bottom of the second receiving cavity (2), and the third receiving cavity (3) is used to receive sterile saline. The gas outlet tube (7) is used to discharge the gas in the third receiving cavity (3). The outlet of the pressure regulating tube (8) is connected to the external environment, and the outlet of the pressure regulating tube (8) extends to the bottom of the third receiving cavity. The base (9) to which the drainage bottle is pivotally connected allows it to be tilted relative to the base (9).

2. The closed thoracic drainage device for respiratory medicine according to claim 1, characterized in that, The middle section of the first guide tube (5) is located outside the drainage bottle and forms a ring structure with the top of the drainage bottle; the middle section of the second guide tube (6) is located outside the drainage bottle and forms a ring structure with the top of the drainage bottle.

3. The closed thoracic drainage device for respiratory medicine according to claim 2, characterized in that, The middle section of the first guide tube (5) and the middle section of the second guide tube are both fitted with hooks (10), which are used to suspend the side of the hospital bed.

4. The closed thoracic drainage device for respiratory medicine according to claim 1, characterized in that, The drainage bottle includes a bottle body (11) and a bottle cap (12). The gas-liquid inlet tube (4), the first guide tube (5), the second guide tube (6), the gas outlet tube (7), and the pressure regulating tube (8) are all inserted into the bottle cap (12).

5. A closed thoracic drainage device for respiratory medicine according to claim 4, characterized in that, A locking device is provided between the bottle cap (12) and the bottle body (11). The locking device includes a mounting base (13), a pull ring (14), and a pull hook (15). The pull ring (14) is hinged to the mounting base (13). One of the mounting base (13) and the pull hook (15) is located on the bottle cap (12), and the other is located on the bottle body (11). When the pull ring (14) is located inside the pull hook (15), the bottle body (11) and the bottle cap (12) are locked together.

6. A closed thoracic drainage device for respiratory medicine according to claim 1, characterized in that, One of the drainage bottle and the base (9) is provided with a pivot block (16), and the other is provided with a pivot hole (17) that cooperates with the pivot block (16); there are two pivot blocks (16) and two pivot holes (17), and they correspond one to one; the two pivot blocks (16) are located on opposite sides of the drainage bottle.

7. A closed thoracic drainage device for respiratory medicine according to claim 1, characterized in that, The base (9) is detachably connected to baffles (18) on opposite sides adjacent to the pivot hole (17), and the bottom of the drainage bottle is located between the two baffles (18).

8. A closed thoracic drainage device for respiratory medicine according to claim 1, characterized in that, The base (9) is hinged with rollers (19), and there are multiple rollers (19), each of which is equipped with a locking mechanism (20).

9. A closed thoracic drainage device for respiratory medicine according to claim 1, characterized in that, The top of the drainage bottle is provided with an upwardly extending clamping rod (21), and the clamping rod (21) is provided with a gripper (22), which is used to clamp the gas-liquid inlet tube (4).

10. A closed thoracic drainage device for respiratory medicine according to claim 1, characterized in that, The base (9) is equipped with a handrail (23).

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