Chest drainage device convenient for drainage operation

Abstract

The utility model relates to a chest drainage device convenient for drainage operation, which comprises a drainage bottle, a sampling joint, a drainage joint and a suction joint, the sampling joint, the drainage joint and the suction joint are arranged on the drainage bottle, a drainage port is arranged on the bottom wall or the side wall of the drainage bottle, and a plugging piece hermetically matched with the drainage port is arranged in the drainage port. An operation part exposed out of the liquid discharge port is arranged on the plugging piece, the operation part is used for receiving external acting force to enable the plugging piece to move and rotate or be pulled relative to the liquid discharge port along a preset path, and the plugging piece can open or close the liquid discharge port under the action of the operation part; and the operating part and the plugging piece are integrally formed or separately matched and connected. According to the chest drainage device convenient for the liquid discharge operation, the rapid and safe liquid discharge operation is realized, the liquid discharge time is effectively shortened, the risks of pollution and infection are reduced, the leakproofness and the safety of the device are improved, the operation steps are simplified, and the operation of medical personnel is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of medical suction instruments, in particular to a chest drainage device which is convenient for liquid discharge operation. Background Art

[0002] In the existing technology, closed chest drainage is an indispensable and important part of the treatment of thoracic surgery and diseases such as chest trauma. Its main function is to discharge air, fluid and blood accumulated in the chest cavity, restore negative pressure in the chest cavity, promote lung re-expansion, prevent and treat infection, and accelerate patient recovery.

[0003] Traditional closed chest drainage devices must be replaced once they reach their maximum nominal drainage volume, with one patient requiring two or three per treatment cycle. Devices with sampling ports only allow for small sample collection and lack fluid drainage. Replacing these devices increases clinical nursing workload, increases the risk of infection, and is not cost-effective or energy-efficient.

[0004] In summary, existing chest drainage devices still need to be improved in terms of functionality, cost, and ease of use to better meet clinical needs. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a chest drainage device that realizes rapid and safe drainage operation and is easy to operate.

[0006] In order to achieve the above-mentioned purpose, the utility model is designed as a chest drainage device that is convenient for liquid discharge operation, including a drainage bottle and a sampling connector, a drainage connector and a suction connector arranged on the drainage bottle. A liquid discharge port is provided on the bottom wall or side wall of the drainage bottle, and a sealing member that is sealed and matched with the liquid discharge port is provided in the liquid discharge port. An operating part that is exposed outside the liquid discharge port is provided on the sealing member, and the operating part is used to receive an external force to move, rotate or pull the sealing member along a predetermined path relative to the liquid discharge port. The sealing member can open or close the liquid discharge port under the action of the operating part; the operating part and the sealing member are integrally formed or separately matched.

[0007] Preferably, the liquid discharge port is provided at the upper portion of the side wall of the drainage bottle, the blocking member is a rubber plug matched with the liquid discharge port, and the operating portion is a handle integrally formed with the rubber plug.

[0008] Preferably, a slide groove is provided at the bottom of the drainage bottle, the liquid discharge port is provided on the bottom wall of the drainage bottle and is connected to the slide groove, the sealing member is a rubber block slidably arranged in the liquid discharge port, and the rubber block opens or closes the liquid discharge port by sliding in the slide groove; the operating part is a recessed structure integrally formed on the side of the rubber block away from the liquid discharge port.

[0009] Preferably, the liquid discharge port is arranged on the bottom wall of the drainage bottle, and a through hole is provided on the bottom wall. A valve core is rotatably provided in the through hole, and the valve core is sealed with the through hole. A liquid discharge channel is provided on the valve core, and the liquid discharge channel selectively connects or disconnects the drainage bottle and the liquid discharge port when the valve core rotates; the operating part is a handle connected to the valve core.

[0010] Preferably, the handle is separately connected to the valve core, and a groove for accommodating the handle is provided on the outer wall surface of the drainage bottle.

[0011] Preferably, the valve core is made of plastic-coated rubber.

[0012] Preferably, the liquid discharge port extends into the drainage bottle to form the depth of the liquid discharge port.

[0013] Preferably, the suction joint is connected to the drainage bottle to form an exhaust channel, and a one-way ventilation dry seal valve is provided in the exhaust channel; the upper end of the dry seal valve is connected to a transparent observation tube, and the transparent observation tube is connected to the suction joint and the dry seal valve, and a float is provided in the transparent observation tube, and the float is configured to seal the transparent observation tube in the absence of external force; one side wall of the drainage bottle is a transparent wall, and the transparent wall can reveal the status of the transparent observation tube and the float therein; the drainage bottle is also provided with a pressure relief valve and a negative pressure valve for adjusting or maintaining the negative pressure value in the drainage bottle.

[0014] Preferably, it also includes a partition, which is arranged in the exhaust channel and divides the exhaust channel into a first air channel and a second air channel up and down, and the second air channel is connected to the first air channel through the dry seal valve; the pressure relief valve and the negative pressure valve are both connected to the first air channel, and two air vents with different heights and staggered distribution are provided on the bottom wall of the second air channel.

[0015] Preferably, a hemispherical containing bucket is provided at the connection between the dry seal valve and the transparent observation tube, the float is arranged in the hemispherical containing bucket, and there is a movable gap between the float, the hemispherical containing bucket and the transparent observation tube, and a small hole is opened at the bottom of the hemispherical containing bucket and connected to the dry seal valve.

[0016] The chest drainage device designed by this utility model facilitates drainage operations, achieving rapid and safe drainage, effectively shortening drainage time, reducing the risk of contamination and infection, and improving the airtightness and safety of the device. It also simplifies the operating steps, making it easier for medical staff to operate. Furthermore, the device is compact, lightweight, and easy to operate, making it convenient for patients to carry and facilitate early ambulation, thus facilitating postoperative recovery. Furthermore, medical staff can directly observe the position changes of the float through the observation window to determine the airtightness and patency of the device, as well as whether the patient's chest cavity is leaking. This helps medical staff quickly assess the quality of the surgery and the patient's postoperative recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a chest drainage device that facilitates fluid drainage operations, provided in an embodiment of the present application;

[0018] Figure 2 This is a three-dimensional exploded view of a chest drainage device that facilitates fluid discharge operations provided in an embodiment of the present application;

[0019] Figure 3 This is a plan view of the internal structure of the drainage bottle provided in an embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the coordination between the liquid discharge channel and the liquid discharge port provided in an embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of the operation portion and the groove provided in an embodiment of the present application;

[0022] Figure 6 This is another schematic diagram of an operating unit provided in an embodiment of the present application;

[0023] Figure 7 This is a schematic diagram of another embodiment of the liquid discharge port provided in an embodiment of the present application;

[0024] Figure 8 This is another schematic diagram of the sealing member provided in an embodiment of the present application.

[0025] Among them: drainage bottle 10, sampling connector 11, drainage connector 12, suction connector 13, slide groove 14, through hole 15, groove 16, transparent wall 17, liquid discharge port 20, blocking member 30, operating part 40, valve core 50, liquid discharge channel 51, exhaust channel 60, dry seal valve 70, transparent observation tube 71, float 72, pressure relief valve 80, negative pressure valve 81, partition 90, first air duct 61, second air duct 62, and air vent 63. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0027] like Figures 1 to 8 As shown, the chest drainage device described in this embodiment, which facilitates fluid discharge operation, includes:

[0028] Drainage bottle 10: Drainage bottle 10 has an inner cavity for accommodating pleural drainage fluid. In this embodiment, drainage bottle 10 is made of a transparent material, such as medical-grade ABS plastic, and manufactured using one-piece injection molding technology. The transparent nature of drainage bottle 10 allows medical staff to easily observe the amount, color, and properties of the drainage fluid, allowing them to promptly monitor changes in the patient's condition. Furthermore, ABS material offers excellent corrosion and impact resistance, extending the lifespan of the device and reducing maintenance costs.

[0029] Sampling connector 11: Located at the bottom of the drainage bottle 10, it is connected to the inner cavity and is used to extract drainage fluid for testing and analysis. In this embodiment, the sampling connector 11 can adopt a standard interface such as a Luer connector to facilitate connection to sampling tools such as syringes.

[0030] Drainage connector 12: Located at the top of the drainage bottle 10, it is connected to the inner cavity and is used to connect to the chest drainage tube to drain the accumulated air, fluid and blood in the chest cavity into the drainage bottle 10. In this embodiment, the drainage connector 12 can be a Luer connector or other interface suitable for connecting to a drainage tube.

[0031] Suction connector 13: located at the top of the drainage bottle 10, connected to the inner cavity, used to connect to a negative pressure source such as a medical suction device to perform negative pressure suction on the chest cavity to promote lung re-expansion.

[0032] In addition, the drainage bottle 10 is provided with a liquid discharge port 20 on the bottom wall or side wall. A sealing member 30 is provided within the liquid discharge port 20 and is tightly coupled to the liquid discharge port 20 to ensure a tight seal. The sealing member 30 is provided with an operating portion 40, which is exposed outside the liquid discharge port 20. The operating portion 40 is configured to receive external force to cause the sealing member 30 to move, rotate, or pull along a predetermined path relative to the liquid discharge port 20. The operating portion 40 can open or close the liquid discharge port 20. The operating portion 40 can be integrally formed with the sealing member 30 or separately coupled thereto.

[0033] In this way, medical staff only need to operate the sealing member 30 through the operating part 40 to open or drain the liquid port 20. The operation is simple, fast and safe. There is no need to clamp or disconnect the liquid discharge tube for draining, which reduces the risk of contamination and infection caused by improper operation. When too much drainage fluid accumulates in the drainage bottle 10, it can be selectively opened for draining, thereby extending the service life of the entire drainage device.

[0034] The blocking member 30 and the operating portion 40 provided in this embodiment are described below.

[0035] In some embodiments, as Figure 7As shown, the liquid discharge port 20 is provided at the upper portion of the side wall of the drainage bottle 10 , the blocking member 30 is a rubber plug matched with the liquid discharge port 20 , and the operating portion 40 is a handle integrally formed with the rubber plug.

[0036] In this embodiment, the discharge port 20 is arranged on the upper part of the side wall, which can prevent the discharge port 20 from being immersed in the drainage fluid for a long time, thereby reducing the risk of contamination and blockage, and effectively preventing leakage due to accidental contact or operation. Moreover, the plug-type sealing member 30 is tightly matched with the discharge port 20, providing reliable sealing, further reducing the possibility of leakage. In addition, the handle-type operating part 40 is easy to grasp and operate. Even if medical staff are wearing gloves, they can quickly open and close the discharge port with one hand, which significantly improves operational efficiency. This design also retains the flexibility of dumping the drainage bottle 10 for drainage when necessary, such as when the drainage bottle needs to be emptied quickly or when handling special circumstances.

[0037] In some embodiments, as Figure 8 As shown, a slide groove 14 is provided at the bottom of the drainage bottle 10, the liquid discharge port 20 is provided on the bottom wall of the drainage bottle 10 and is connected to the slide groove 14, the blocking member 30 is a rubber block slidably arranged in the liquid discharge port 20, and the rubber block opens or closes the liquid discharge port 20 by sliding in the slide groove 14; the operating part 40 is a recessed structure integrally formed on the side of the rubber block away from the liquid discharge port 20.

[0038] In this embodiment, the sliding rubber block seal 30 tightly fits within the chute 14, ensuring a reliable seal around the drain port 20 and effectively preventing liquid leakage. When draining is required, medical personnel simply push or pull the recessed operating portion 40 located on the side of the rubber block facing away from the drain port 20 to slide the rubber block along the chute 14, thereby opening or closing the drain port 20. This design simplifies the operation process, saving time and effort, and can be easily completed even with one hand. Furthermore, by controlling the sliding distance of the rubber block within the chute 14, the opening size of the drain port 20 can be precisely adjusted, thereby achieving precise control of the drain flow rate and facilitating personalized drainage management based on the patient's specific condition. Furthermore, because the recessed structure is located on the side of the rubber block facing away from the drain port 20, i.e., near the bottom of the drainage bottle 10, it is difficult for the patient to directly touch the operating portion 40, effectively avoiding the risk of accidentally opening the drain port 20 and the resulting risk of liquid leakage and contamination.

[0039] In some embodiments, as Figure 4As shown, the liquid discharge port 20 is provided on the bottom wall of the drainage bottle 10, and a through hole 15 is provided on the bottom wall. A valve core 50 is rotatably provided in the through hole 15, and the valve core 50 is sealed with the through hole 15. A liquid discharge channel 51 is provided on the valve core 50, and the liquid discharge channel 51 selectively connects or disconnects the drainage bottle 10 and the liquid discharge port 20 when the valve core 50 rotates; the operating part 40 is a handle connected to the valve core 50.

[0040] In this embodiment, the valve core 50 is tightly fitted with the through hole 15 and maintains a seal during the rotation process, effectively preventing liquid leakage. Even when the drainage bottle 10 is tilted or inverted, it can maintain good sealing performance. For ease of operation, the operating part 40 is connected to the valve core 50, for example Figure 6 The knob structure shown can drive the valve core 50 to rotate by rotating the knob-type operating part 40, thereby accurately controlling the opening degree of the drainage channel 51. This enables medical staff to fine-tune the drainage flow rate according to the patient's specific situation and clinical needs. For example, for patients with a small amount of drainage, the valve core 50 can be rotated to a smaller opening angle to control the drainage speed and avoid excessive drainage; for patients with a large amount of drainage, the valve core 50 can be rotated to a larger opening angle to speed up the drainage speed and reduce the number of times the drainage bottle 10 is frequently emptied.

[0041] In another example, to further improve the convenience and accuracy of operation, this embodiment can also add scale lines or numerical markings on the knob-type operating portion 40 to indicate the rotation angle of the valve core 50 and the opening degree of the liquid discharge channel 51. This can help medical staff more intuitively understand and control the liquid discharge flow rate and improve the repeatability and consistency of operation.

[0042] In some embodiments, as Figure 1 、 Figure 5 As shown, the handle is separately coupled to the valve core 50, and a recess 16 for accommodating the handle is provided on the outer wall of the drainage bottle 10. Thus, the operating portion 40 (i.e., the handle) is separately coupled to the valve core 50, and a recess 16 for accommodating the handle is provided on the outer wall of the drainage bottle 10. Normally, the handle is securely contained within the recess 16, effectively preventing accidental contact or misoperation. Only when draining is required is the handle removed from the recess 16 and inserted into the valve core 50. Then, by rotating the handle, the drain channel 51 within the valve core 50 is connected to the drain port 20, thereby initiating draining. This effectively avoids the risk of leakage caused by accidentally opening the valve, significantly improving the safety of the device.

[0043] In this embodiment, the valve core 50 is made of plastic-coated plastic. Plastic-coated plastic refers to coating the valve core 50 with a layer of rubber, such as silicone, TPE, TPU, etc., to better fit the through hole 15, thereby enhancing the sealing and effectively preventing liquid or gas leakage.

[0044] In some embodiments, as Figure 2 As shown, the drain port 20 extends into the drainage bottle 10 to define the depth of the drain port 20. With this structural design, the depth of the drain port 20 allows the entrance of the drain port 20 to be higher than the inner bottom wall of the drainage bottle 10, forming a small "sedimentation zone." Thus, during drainage, sediment (e.g., blood clots, tissue fragments, etc.) will settle at the bottom of the drainage bottle 10 and will not be drawn into the drain port 20, thereby preventing blockage of the drain port 20 and ensuring smooth drainage.

[0045] In some embodiments, as Figure 2 、 Figure 3 As shown, the suction joint 13 is connected to the drainage bottle 10 to form an exhaust channel 60, and a one-way ventilation dry seal valve 70 is provided in the exhaust channel 60; the upper end of the dry seal valve 70 is connected to a transparent observation tube 71, and the transparent observation tube 71 connects the suction joint 13 and the dry seal valve 70. A float 72 is provided in the transparent observation tube 71, and the float 72 is configured to block the transparent observation tube 71 in the absence of external force; one side wall of the drainage bottle 10 is a transparent wall 17, and the transparent wall 17 can reveal the status of the transparent observation tube 71 and the float 72 therein; the drainage bottle 10 is also provided with a pressure relief valve 80 and a negative pressure valve 81 for adjusting or maintaining the negative pressure value in the drainage bottle 10.

[0046] In practice, a dry seal valve 70 is used to connect the suction connector 13 and the inner cavity of the drainage bottle 10, forming an exhaust channel 60 for gas discharge. The core function of the dry seal valve 70 is to ensure the one-way discharge of gas and prevent the backflow of external air into the chest cavity. That is, because there is no need to add water seal liquid like traditional water seal bottles, this device completely avoids the risk of water seal failure caused by the water seal bottle tipping or water seal liquid evaporation, significantly improving the safety of drainage. At the same time, to facilitate medical personnel to monitor the working status of the device in real time, the upper end of the dry seal valve 70 is connected to a transparent observation tube 71 with a float 72 placed in the tube. Under normal circumstances, that is, when the device is in a sealed state, the float 72 will fall to the bottom of the transparent observation tube 71 due to its own gravity, blocking the observation tube 40. When the suction connector 13 is connected to a medical suction device to perform negative pressure suction on the chest cavity, the gas in the chest cavity will be discharged along the exhaust channel 60 and flow through the transparent observation tube 71. At this time, the airflow will push the float 72 upward, releasing the blockage of the transparent observation tube 71.

[0047] This allows medical staff to visually observe the position changes of the float 72 through the transparent wall 17 of the drainage bottle 10, providing real-time information on the device's operating status. If the float 72 is floating upward, it indicates the device is unobstructed and gas is being discharged; if the float 72 falls back to the bottom, it indicates the device is sealed and gas discharge has stopped. Furthermore, the speed and amplitude of the float 72's movement can reflect changes in the negative pressure in the chest cavity, helping medical staff better understand the patient's condition. In this embodiment, to enhance visibility, the float 72 can be a more conspicuous color, such as red, for easier observation by medical staff.

[0048] In this embodiment, a pressure relief valve 80 and a negative pressure valve 81 are provided on the drainage bottle 10. The pressure relief valve 80 is used to exhaust air and reduce the pressure when the air pressure in the drainage bottle 10 is too high, that is, the pressure reduction treatment can further improve the safety of the drainage device; and the negative pressure valve 81 can allow the outside atmosphere to enter the negative pressure valve 81 to balance the pressure when the drainage bottle 10 is connected to the suction device for drainage, thereby maintaining the drainage device at a preset suction pressure, that is, automatically compensating for slight changes in the pressure of the negative pressure source through the negative pressure valve 81, thereby accelerating the drainage efficiency and ensuring continuous and thorough drainage. That is, when the output pressure of the negative pressure source is greater than the pressure threshold set to be maintained by the negative pressure valve 81, no matter how the output pressure of the negative pressure source is adjusted, the pressure in the drainage bottle 10 will no longer change, thereby ensuring safety of use.

[0049] In some embodiments, as Figure 2 、 Figure 3 As shown, it also includes a partition 90, which is arranged in the exhaust channel 60 and divides the exhaust channel 60 into a first air channel 61 and a second air channel 62 in the upper and lower parts. The second air channel 62 is connected to the first air channel 61 through the dry seal valve 70; the pressure relief valve 80 and the negative pressure valve 81 are both connected to the first air channel 61, and two air vents 63 with different heights and staggered distribution are provided on the bottom wall of the second air channel 62.

[0050] In this way, by utilizing the different heights and staggered placement of the two vent tubes 63 at the bottom of the second airway 62, even if the drainage bottle 10 tilts or even inverts, at least one vent tube 63 remains above the drainage fluid level, maintaining the patency of the second airway 62 and allowing gas to be discharged smoothly. Furthermore, the partition 90 divides the exhaust channel 60 into two sections. Even if a small amount of drainage fluid enters the second airway 62, it will not directly affect the normal operation of the dry seal valve 70 and the first airway 61, further preventing the drainage fluid from being aspirated into the chest cavity, further ensuring patient safety. Furthermore, the presence of the partition 90 enhances the structural strength of the exhaust channel 60 and, by extension, the drainage bottle 10, making it more stable and less susceptible to deformation or damage, thereby improving the reliability of the device.

[0051] In some embodiments, a hemispherical receiving bucket (not shown) is provided at the connection between the dry seal valve 70 and the transparent observation tube 71, the float 72 is provided in the hemispherical receiving bucket, and there is a movable gap between the float 72 and the hemispherical receiving bucket and the transparent observation tube 71, and a small hole is opened at the bottom of the hemispherical receiving bucket and connected to the dry seal valve 70.

[0052] In this way, the hemispherical receiving bucket provides support for the float 72, and there is a movable gap between the float 72, the hemispherical receiving bucket and the transparent observation tube 71, which avoids the float 72 from being stuck, ensures the smooth flow of the transparent observation tube 71, and enables medical staff to clearly observe the movement status of the float 72.

[0053] The chest drainage device provided in this embodiment facilitates rapid and safe drainage, effectively shortening drainage time, reducing the risk of contamination and infection, and improving the device's airtightness and safety. It also simplifies the operating procedures, making it easier for medical personnel to operate. Furthermore, the device is compact, lightweight, and easy to operate, making it convenient for patients to carry and facilitate early ambulation, thus facilitating postoperative recovery. Furthermore, medical personnel can directly observe the position changes of the float through the observation window to determine the device's airtightness and patency, as well as whether the patient's chest cavity is leaking. This helps them quickly assess the quality of the surgery and the patient's postoperative recovery.

[0054] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0055] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0056] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A chest drainage device that facilitates drainage operation, comprising a drainage bottle and a sampling connector, a drainage connector, and a suction connector provided on the drainage bottle, characterized in that: A liquid discharge port is provided on the bottom wall or side wall of the drainage bottle, and a sealing member sealed with the liquid discharge port is provided in the liquid discharge port. The sealing member is provided with an operating portion exposed outside the liquid discharge port, and the operating portion is used to receive an external force to move, rotate or pull the sealing member along a predetermined path relative to the liquid discharge port. The sealing member can open or close the liquid discharge port under the action of the operating portion; the operating portion and the sealing member are integrally formed or separately connected.

2. The chest drainage device for facilitating fluid discharge according to claim 1, characterized in that: The liquid discharge port is arranged at the upper part of the side wall of the drainage bottle, the blocking member is a rubber plug matched with the liquid discharge port, and the operating part is a handle integrally formed with the rubber plug.

3. The chest drainage device for facilitating drainage operation according to claim 1, characterized in that: A slide groove is provided at the bottom of the drainage bottle, the liquid discharge port is provided on the bottom wall of the drainage bottle and is connected to the slide groove, the sealing member is a rubber block slidably arranged in the liquid discharge port, and the rubber block opens or closes the liquid discharge port by sliding in the slide groove; the operating part is a recessed structure integrally formed on the side of the rubber block away from the liquid discharge port.

4. The chest drainage device for facilitating drainage operation according to claim 1, characterized in that: The liquid discharge port is arranged on the bottom wall of the drainage bottle, and a through hole is provided on the bottom wall. A valve core is rotatably provided in the through hole, and the valve core is sealed with the through hole. A liquid discharge channel is provided on the valve core, and the liquid discharge channel selectively connects or disconnects the drainage bottle and the liquid discharge port when the valve core rotates; the operating part is a handle connected to the valve core.

5. The chest drainage device for facilitating fluid discharge according to claim 4, characterized in that: The handle is separately connected to the valve core, and a groove for accommodating the handle is provided on the outer wall surface of the drainage bottle.

6. The chest drainage device for facilitating drainage operation according to claim 4 or 5, characterized in that: The valve core is made of plastic coated with rubber.

7. The chest drainage device for facilitating fluid discharge according to any one of claims 1 to 5, characterized in that: The liquid discharge port extends into the drainage bottle to form a depth of the liquid discharge port.

8. The chest drainage device for facilitating drainage operation according to claim 7, characterized in that: The suction joint is connected to the drainage bottle to form an exhaust channel, and a one-way ventilation dry seal valve is provided in the exhaust channel; the upper end of the dry seal valve is connected to a transparent observation tube, and the transparent observation tube is connected to the suction joint and the dry seal valve. A float is provided in the transparent observation tube, and the float is configured to block the transparent observation tube in the absence of external force; one side wall of the drainage bottle is a transparent wall, and the transparent wall can reveal the status of the transparent observation tube and the float therein; the drainage bottle is also provided with a pressure relief valve and a negative pressure valve for adjusting or maintaining the negative pressure value in the drainage bottle.

9. The chest drainage device for facilitating drainage operation according to claim 8, characterized in that: It also includes a partition, which is arranged in the exhaust channel and divides the exhaust channel into a first air channel and a second air channel up and down. The second air channel is connected to the first air channel through the dry seal valve; the pressure relief valve and the negative pressure valve are both connected to the first air channel, and two air vents with different heights and staggered distribution are provided on the bottom wall of the second air channel.

10. The chest drainage device for facilitating drainage operation according to claim 9, characterized in that: A hemispherical receiving bucket is provided at the connection between the dry seal valve and the transparent observation tube. The float is arranged in the hemispherical receiving bucket, and there is a movable gap between the float, the hemispherical receiving bucket and the transparent observation tube. A small hole is provided at the bottom of the hemispherical receiving bucket and is connected to the dry seal valve.

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