Chest drainage bottle

Abstract

The utility model relates to the technical field of medical instruments, in particular to a chest drainage bottle which comprises a drainage tube and a storage bottle, the storage bottle comprises an inner bottle and an outer bottle, the inner bottle comprises a first opening and a second opening, the first opening is communicated with the drainage tube, and the second opening is formed in the side wall of the inner bottle and communicated with the outer bottle. A distance exists between the second opening and the bottle bottom of the inner bottle in the gravity direction, so that after the volume of liquid accumulated in the inner bottle is larger than the first preset volume, the liquid is discharged into the outer bottle from the inner bottle through the second opening. According to the chest drainage bottle, the distance exists between the second opening and the bottle bottom of the inner bottle in the gravity direction, after the volume of liquid accumulated in the inner bottle is larger than the first preset volume, the liquid is discharged into the outer bottle from the inner bottle through the second opening, and the liquid accumulated in the inner bottle does not flow through the outer bottle and is not diluted by the liquid in the outer bottle, so that the liquid is not diluted by the liquid in the outer bottle; the concentration is higher, and as a detection sample, the detection result is more accurate.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more specifically, to a chest drainage bottle. Background Technology

[0002] The pleural drainage bottle is a commonly used device in cardiothoracic surgery. Its function is to drain abnormally present gas and fluid in the pleural cavity, maintain negative pressure in the pleural cavity, and promote lung re-expansion.

[0003] Current pleural drainage bottles still have some problems. Currently, most pleural drainage bottles are still simple collection devices consisting of a collection bottle and a drainage tube, mainly used to collect pleural drainage fluid and air expelled from patients with pneumothorax. Although lung tension can be assessed by observing the drainage volume and gas expulsion, and the liquid in the collection bottle can also be used as a test specimen or to detect cancer cells, there is a significant drawback. Specifically, the drainage fluid drained from the patient's pleural cavity is diluted by the water in the collection bottle after entering, thus affecting the accuracy of the test. Utility Model Content

[0004] The purpose of this application is to provide a thoracic drainage bottle that can improve the accuracy of sample detection.

[0005] To achieve the above objectives, embodiments of this application provide a thoracic drainage bottle, including a drainage tube and a storage bottle. The storage bottle includes an inner bottle and an outer bottle. The inner bottle includes a first opening and a second opening. The first opening communicates with the drainage tube. The second opening is disposed on the side wall of the inner bottle and communicates with the outer bottle. There is a gap between the second opening and the bottom of the inner bottle in the direction of gravity, so that the liquid accumulated in the inner bottle is greater than a first preset volume before the liquid is discharged from the inner bottle into the outer bottle through the second opening.

[0006] In one embodiment, the thoracic drainage bottle further includes a fluid conduit, which includes a first tube body, one end of which is connected to a second opening, and the other end of which is located below the liquid level in the outer bottle.

[0007] In one embodiment, the fluid conduit further includes a second pipe body, which is connected to the first pipe body. The second pipe body is used to guide gas into the liquid inside the outer bottle. The second pipe body has a first branch pipe and a second branch pipe. One end of the first branch pipe is connected to the first pipe body, and the other end of the first branch pipe is connected to the second branch pipe. The first branch pipe is inclined upwards at a first preset angle α relative to the first pipe body along the direction of gravity, wherein 90° < α < 180°. The outlet of the second branch pipe is located below the liquid surface of the outer bottle.

[0008] The connection point between the first pipe body and the first branch pipe is a pipe body intersection point; the flow direction of the liquid in the first pipe body is the first direction.

[0009] In one embodiment, the thoracic drainage bottle further includes a first one-way valve, which is disposed within the first tube body, and the points where the first one-way valve intersects with the tube body are sequentially distributed along the first direction. The first one-way valve includes a first elastic element, a limiting block, and a valve plate. One end of the valve plate is mounted on the inner wall of the first tube body. During rotation, the valve plate can block or open the first tube body. The valve plate has a first limit position. When the valve plate is at the first limit position, it blocks the first tube body; when the valve plate is removed from the first limit position, the first tube body is open. The limiting block is disposed on the inner wall of the first tube body and located at the first limit position of the valve plate. The first elastic element is telescopic and applies a first force to the valve plate, causing the valve plate to move closer to the first limit position. The force exerted by the gas in the first tube body on the valve plate is less than the force exerted by the first elastic element on the valve plate. The liquid in the first tube body can push the first elastic element to compress, causing the valve plate to move away from the first limit position.

[0010] In one embodiment, the thoracic drainage bottle further includes a conical decompression cylinder, which is disposed on the first tube body and has its intersection points with the tube body distributed sequentially along the first direction. The conical decompression cylinder has a first end and a second end, the diameter of the first end being smaller than the diameter of the second end, and the first end and the second end being distributed sequentially along the first direction. At least one conical decompression cylinder is provided along the axial direction of the first tube body.

[0011] In one embodiment, the conical pressure-reducing cylinder is provided with a leakage hole, and the number of leakage holes on each conical pressure-reducing cylinder is at least one.

[0012] In one embodiment, when two or more conical pressure-reducing cylinders are provided, the leakage holes on adjacent conical pressure-reducing cylinders are staggered.

[0013] In one embodiment, the thoracic drainage bottle further includes a gas sensor disposed on the second branch tube to detect the volume of gas discharged into the outer bottle through the second branch tube.

[0014] In one embodiment, the inner bottle is further provided with a third opening, which allows the outside space to communicate with the inside space of the inner bottle; a rubber stopper is provided at the third opening.

[0015] In one embodiment, the drainage tube includes a disposable tube body and a universal tube body, the universal tube body being detachably connected to the disposable tube body, the universal tube body communicating with the first opening, and a second one-way valve being provided between the universal tube body and the first opening, allowing fluid in the universal tube body to enter the inner bottle through the second one-way valve, while the second one-way valve restricts fluid in the inner bottle from entering the universal tube body; and / or, a third one-way valve is provided on the outer bottle, allowing gas in the outer bottle to be discharged to the outside through the third one-way valve, while the third one-way valve restricts external fluid from entering the outer bottle.

[0016] Through the above technical solution, there is a gap between the second opening and the bottom of the inner bottle in the direction of gravity. This allows the liquid to accumulate in the inner bottle to exceed the first preset volume before it is discharged from the inner bottle into the outer bottle through the second opening. Since the liquid in the inner bottle is discharged into the outer bottle only after reaching a certain volume, the liquid accumulated before this point is not mixed with the liquid in the outer bottle. Therefore, it is not diluted by the liquid in the outer bottle and is not affected by the liquid in the outer bottle. Its concentration is higher, making the test results more accurate as a test sample.

[0017] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of one embodiment of a thoracic drainage bottle provided for the purposes of this application;

[0020] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0021] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;

[0022] Figure 4 A two-view structural schematic diagram of another embodiment of a thoracic drainage bottle provided for the purposes of this application.

[0023] icon:

[0024] 100-drainage tube; 110-disposable tube body; 120-universal tube body;

[0025] 200 - Storage bottle; 210 - Inner bottle; 212 - First opening; 214 - Second opening; 216 - Third opening; 220 - Outer bottle;

[0026] 300 - Fluid pipe; 310 - First pipe body; 320 - Second pipe body; 322 - First branch pipe; 324 - Second branch pipe;

[0027] 410 - First check valve; 412 - Valve plate; 414 - Limiting block; 416 - First elastic element; 420 - Second check valve; 430 - Third check valve;

[0028] 500 - Conical pressure reducing cylinder; 510 - Leakage hole;

[0029] 600 - Gas Sensor. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] Embodiments of this application provide a chest drainage bottle, such as... Figures 1 to 3As shown, the thoracic drainage bottle includes a drainage tube 100 and a storage bottle 200. Exemplarily, the drainage tube 100 connects the human thoracic cavity and the storage bottle 200, with one end connected to the human body and the other end connected to the storage bottle 200, to drain fluid and gas from the human thoracic cavity into the storage bottle 200. The fluid in the human thoracic cavity can be used as a test specimen or to check for cancer cells; collecting the fluid in the storage bottle 200 facilitates the collection of thoracic fluid specimens. Gas from the human thoracic cavity is introduced into the storage bottle 200, which contains liquid. The height to which the liquid is lifted by the gas allows for assessment of lung tension based on the amount of gas expelled. However, in existing drainage bottles, fluid from the pleural cavity is introduced into the storage bottle 200, and the fluid in the storage bottle 200 dilutes the introduced pleural cavity fluid, leading to a decrease in detection accuracy. The pleural drainage bottle provided in this application, through the storage bottle 200, can collect undiluted pleural cavity fluid without affecting the discharge of gas from the pleural cavity into the storage bottle 200. Using the undiluted fluid as a sample results in more accurate detection results. The specific settings of the storage bottle 200 are as follows:

[0034] like Figure 1 As shown, the storage bottle 200 includes an inner bottle 210 and an outer bottle 220. (As indicated...) Figure 1 As shown, the inner bottle 210 is disposed in the outer bottle 220, but in some other embodiments, the inner bottle 210 is disposed outside the outer bottle 220, and the fluid in the inner bottle 210 is guided into the outer bottle 220 through a pipe. Exemplarily, the fluid includes, but is not limited to, liquids and gases.

[0035] like Figure 1 As shown, the inner bottle 210 includes a first opening 212 and a second opening 214. The first opening 212 is connected to the drainage tube 100, so that the liquid and gas in the patient's pleural cavity enter the inner bottle 210 after passing through the drainage tube 100 and the first opening 212.

[0036] The second opening 214 is provided on the side wall of the inner bottle 210 and is connected to the outer bottle 220. For example, the second opening 214 is connected to the internal space of the outer bottle 220 so that the fluid in the inner bottle 210 can be directly discharged into the outer bottle 220 through the second opening 214. Of course, whether the inner bottle 210 is located inside or outside the outer bottle 220, the second opening 214 and the outer bottle 220 can be connected by a pipe so that the liquid in the inner bottle 210 can be discharged into the outer bottle 220 through the pipe.

[0037] like Figure 1 or Figure 4As shown, there is a gap in the direction of gravity between the second opening 214 and the bottom of the inner bottle 210. This ensures that the liquid volume accumulated in the inner bottle 210 exceeds the first preset volume before the liquid is discharged from the inner bottle 210 into the outer bottle 220 through the second opening 214. This means that when sampling pleural fluid from a human body, samples can be taken directly from the inner bottle 210 without worrying about dilution by the liquid in the outer bottle 220, protecting the originality of the sample and ensuring the reliability of the test results. The first preset volume of liquid in the inner bottle 210, which does not flow through the outer bottle 220 and is not diluted by the liquid in the outer bottle 220, is unaffected by the liquid in the outer bottle 220 and has a higher concentration. As a test sample, the test results are more accurate, avoiding the problem in existing technologies where diluted samples need to be collected from the outer bottle 220 for testing, which affects the accuracy of the test.

[0038] For example, the first preset volume can be set according to actual needs, such as 5ml, 10ml or 20ml.

[0039] like Figure 1 As shown, in one embodiment, the thoracic drainage bottle further includes a fluid conduit 300, which connects to a second opening 214 to allow fluid from the inner bottle 210 to enter the liquid in the outer bottle 220. The fluid conduit 300 includes a first tube 310. One end of the first tube 310 is connected to the second opening 214, and the other end is positioned below the liquid level in the outer bottle 220. The first tube 310 prevents splashing when the liquid in the inner bottle 210 enters the outer bottle 220, thus preventing some liquid from remaining on the inner wall of the outer bottle 220.

[0040] When the fluid in the inner bottle 210 flows into the outer bottle 220 through the second opening 214 and the fluid pipe 300, the fluid enters the liquid in the outer bottle 220 in a relatively stable manner because the other end of the first tube 310 is located below the liquid surface, thus avoiding splashing.

[0041] like Figure 1 As shown, in one embodiment, the fluid conduit 300 further includes a second tube 320, which is connected to the first tube 310 and is used to guide gas into the liquid inside the outer bottle 220.

[0042] like Figure 1 and Figure 2 As shown, the second tube 320 has a first branch tube 322 and a second branch tube 324. One end of the first branch tube 322 is connected to the first tube 310, and the other end of the first branch tube 322 is connected to the second branch tube 324. The outlet of the second branch tube 324 is located below the liquid level of the outer bottle 220 so that gas can be introduced into the liquid of the outer bottle 220.

[0043] like Figure 2 As shown, the first branch tube 322 is tilted upward at a first preset angle α relative to the first tube body 310 along the direction of gravity. This prevents the liquid in the first tube body 310 from entering the second tube body 320 and allows the gas in the first tube body 310 to enter the second tube body 320, thereby achieving liquid and gas separation and treatment. This facilitates accurate observation of the amount of gas discharged from the pleural cavity and thus determines the patient's lung tension. Wherein, 90° < α < 180°.

[0044] For example, the first branch pipe 322 is tilted upwards relative to the first pipe body 310 along the direction of gravity by a first predetermined angle α, where α = 91°. In another embodiment, α = 100°. In another embodiment, α = 120°. In another embodiment, α = 130°. In another embodiment, α = 140°. In another embodiment, α = 160°. In another embodiment, α = 170°.

[0045] The second tube 320 is connected to the first tube 310. The second tube 320 is used to guide gas into the liquid inside the outer bottle 220. The connection point between the first tube 310 and the first branch tube 322 is a tube crossover connection point, such as... Figure 2 As indicated by the middle arrow, the flow direction of the liquid inside the first tube 310 is the first direction.

[0046] like Figure 1 and Figure 2 As shown, in one embodiment, the thoracic drainage bottle further includes a first one-way valve 410. The first one-way valve 410 is disposed inside the first tube 310, so that the first one-way valve 410 can prevent the liquid in the outer bottle 220 from entering the inner bottle 210 through the first tube 310. The first one-way valve 410 and the tube body are distributed sequentially along the first direction, that is, the first one-way valve 410 is disposed inside the first tube 310 along the first direction and is located downstream of the tube body intersection point. The first one-way valve 410 can prevent gas from entering the outer bottle 220 through the first tube 310, so that the gas can smoothly enter the outer bottle 220 through the first branch pipe 322 and the second branch pipe 324.

[0047] like Figure 2 As shown, the first one-way valve 410 includes a valve plate 412, a limiting block 414, and a first elastic element 416.

[0048] One end of the valve plate 412 is installed on the inner wall of the first pipe body 310. During rotation, the valve plate 412 can block or open the first pipe body 310. The valve plate 412 has a first limit position, such as... Figure 2 As shown, valve plate 412 is in the first extreme position. When in the first extreme position, valve plate 412 blocks the first tube 310. When valve plate 412 is removed from the first extreme position, the first tube 310 is opened.

[0049] The limiting block 414 is disposed on the inner wall of the first tube 310 and located at the first limit position of the valve plate 412.

[0050] The first elastic element 416 is telescopic and applies a first force to the valve plate 412, causing the valve plate 412 to move closer to the first limit position. The liquid in the first tube 310 can push the first elastic element 416 to compress, causing the valve plate 412 to move away from the first limit position.

[0051] For example, the first elastic element 416 includes, but is not limited to: helical spring, butterfly spring, ring spring, leaf spring, steel leaf spring, rubber spring, air spring, etc.

[0052] During use, when gas enters the first tube 310 from the inner bottle 210, the first elastic element 416 pushes the valve plate 412 to remain in the first limit position, the first tube 310 is closed, so that the gas enters the first branch pipe 322 from the first tube 310, then enters the second branch pipe 324 from the first branch pipe 322, and finally is discharged into the liquid in the outer bottle 220 from the second branch pipe 324.

[0053] During use, after the liquid accumulates in the inner bottle 210 to a volume greater than the first preset volume, the excess liquid enters the first tube 310 through the second opening 214. Initially, the valve plate 412 is in the position as follows: Figure 2 In the first extreme position shown, valve plate 412 blocks the first tube 310, and liquid accumulates at valve plate 412. When the liquid volume exceeds a certain level, the force exerted by the gravity of the liquid on valve plate 412 is greater than the elastic force exerted by the first elastic member 416 on valve plate 412. The first elastic member 416 is compressed, valve plate 412 is disengaged from the first extreme position, the first tube 310 is opened, and the liquid passes through valve plate 412 to be discharged from the first tube 310 into the outer bottle 220. After the liquid is discharged, the first elastic member 416 rebounds and pushes valve plate 412 back to the first extreme position. Therefore, the inner bottle 210 can collect a first preset volume of pleural fluid, and the fluid exceeding the first preset volume is discharged into the outer bottle 220 through the first one-way valve 410. At the same time, the gas is discharged into the outer bottle 220 through the second tube 320. The fluid and gas drained from the pleural cavity are treated separately, which reduces the influence of the pleural fluid on the height of the liquid level in the outer bottle 220 caused by the pleural gas, so as to more intuitively and accurately judge the patient's lung tension based on the pleural gas.

[0054] like Figure 3 As shown, in one embodiment, the thoracic drainage bottle further includes a conical decompression cylinder 500, which is disposed on the first tube body 310 and has its intersection connection points with the tube body distributed sequentially along a first direction. The conical decompression cylinder 500 has a first end and a second end, the diameter of the first end being smaller than the diameter of the second end, and the first end and the second end being distributed sequentially along the first direction.

[0055] The diameter of the first end of the conical pressure-reducing cylinder 500 is smaller than the diameter of the second end, which effectively slows down the flow rate of liquids and gases. This deceleration helps reduce the impact of the fluid on the valve plate 412 and prevents gas from flowing backward from the first one-way valve 410 through the first tube 310 into the outer bottle 220. Slowing down the flow rate helps the liquids and gases flow out more smoothly, reducing blockages or leaks caused by excessive flow, thereby improving drainage efficiency and accuracy.

[0056] In one embodiment, at least one conical pressure-reducing cylinder 500 is provided along the axial direction of the first tube body 310; exemplarily, only one conical pressure-reducing cylinder 500 is provided. In another embodiment, such as Figure 3 As shown, three conical pressure-reducing cylinders 500 are provided. In another embodiment, five conical pressure-reducing cylinders 500 are provided. In yet another embodiment, six conical pressure-reducing cylinders 500 are provided.

[0057] like Figure 3 As shown, in one embodiment, the conical pressure-reducing cylinder 500 is provided with a leakage hole 510, and the number of leakage holes 510 on each conical pressure-reducing cylinder 500 is at least one. Liquid and gas can pass through the leakage hole 510, which can prevent liquid from stagnating in the conical pressure-reducing cylinder 500.

[0058] like Figure 3 As shown, in another embodiment, when two or more conical pressure reducing cylinders 500 are provided, the leakage holes 510 on adjacent conical pressure reducing cylinders 500 are staggered.

[0059] The staggered arrangement of the leakage holes 510 can make the fluid more dispersed when passing through the conical pressure reducing cylinder 500, avoiding excessive local flow velocity or pressure, thereby further reducing the impact of the fluid on the valve plate 412.

[0060] The stacking of multiple conical pressure-reducing cylinders 500 and the staggered arrangement of the leakage holes 510 can form a more complex fluid channel, thereby more effectively reducing the fluid velocity and pressure.

[0061] The staggered arrangement of the drain holes 510 helps to prevent the fluid from forming eddies or dead zones as it passes through the conical pressure reducing cylinder 500, reducing the risk of fluid blockage and keeping the drainage system unobstructed.

[0062] like Figure 1 As shown, in one embodiment, the thoracic drainage bottle also includes a gas sensor 600, which is disposed on the second branch tube 324 to detect the volume of gas discharged from the second branch tube 324 into the outer bottle 220.

[0063] like Figure 1 As shown, the gas sensor 600 is located below the liquid level in the outer bottle 220. Figure 4 As shown, in another embodiment, the gas sensor 600 is located above the liquid surface in the outer bottle 220.

[0064] For example, the gas sensor 600 includes, but is not limited to, mechanical gas flow sensors (e.g., Venturi flow meters, turbine flow meters, and piston flow meters), vibratory gas flow sensors (e.g., acoustic flow meters and vibrating tube flow meters), electromagnetic gas flow sensors (e.g., electromagnetic flow meters and Hall effect flow meters), thermal gas flow sensors (e.g., thermal diffusion flow meters and thermistor flow meters), ultrasonic gas flow sensors (e.g., ultrasonic flow meters and pulse wave Doppler flow meters) or infrared gas sensors 600.

[0065] By setting up a gas sensor 600 to monitor gas flow and volume, doctors can more accurately assist in the clinical diagnosis of patients' lung conditions. Existing technology cannot specifically detect the amount of gas expelled from a patient's pleural cavity, and it is still necessary to take a lung CT (Computed Tomography) to determine the condition of the patient's lungs. This application uses a gas sensor 600 to detect the gas expelled by the patient, minimizing the patient's X-ray exposure during CT imaging and ensuring the patient's safety to the greatest extent.

[0066] like Figure 1 As shown, in one embodiment, the inner bottle 210 is also provided with a third opening 216, which connects the external space with the internal space of the inner bottle 210; the third opening 216 is provided to facilitate the sampling of pleural fluid in the inner bottle 210 from the third opening 216.

[0067] A rubber stopper is installed at the third opening 216. During the sampling process, the sampling needle is inserted into the rubber stopper at the third opening 216. After the sampling needle pierces the rubber stopper, it samples the pleural fluid in the inner bottle 210. After the sampling is completed, the sampling needle is withdrawn from the rubber stopper. During the sampling process, the rubber stopper keeps the third opening 216 closed to prevent external impurities from entering the inner bottle 210.

[0068] like Figure 1 As shown, in one embodiment, the drainage tube 100 includes a disposable tube body 110 and a universal tube body 120. The disposable tube body 110 is connected to the patient's chest cavity, and the universal tube body 120 is detachably connected to the disposable tube body 110. This facilitates the replacement of different disposable tube bodies 110 according to the patient's different needs or treatment stages, reducing the replacement frequency of the overall drainage tube 100 and lowering medical costs.

[0069] The universal tube 120 is connected to the first opening 212, allowing the fluid and gas in the patient's pleural cavity to enter the inner bottle 210 through the disposable tube 110, the universal tube 120, and the first opening 212.

[0070] A second one-way valve 420 is provided between the universal tube 120 and the second opening 214. Fluid in the universal tube can enter the inner bottle 210 through the second one-way valve 420, while the second one-way valve 420 restricts the flow of fluid in the inner bottle 210 into the universal tube 120. The second one-way valve 420 ensures that the fluid can only flow in one direction, preventing the fluid in the inner bottle 210 from flowing back into the universal tube 120 or into the patient's body, thus ensuring the continuity and safety of the drainage process.

[0071] like Figure 1 As shown, in one embodiment, a third one-way valve 430 is provided on the outer bottle 220. Gas in the outer bottle 220 can be discharged to the outside through the third one-way valve 430, while the third one-way valve 430 restricts external fluids from entering the outer bottle 220. The third one-way valve 430 can maintain the pressure balance inside and outside the outer bottle 220 and prevent liquid leakage in the outer bottle 220 in the event of accidental tipping of the storage bottle 200.

[0072] In one embodiment, a measuring ruler is provided in the outer bottle 220. The measuring ruler is set with a scale and is used to measure the height of the liquid level in the outer bottle 220 caused by the patient expelling gas from the chest cavity. This allows doctors to more intuitively understand and judge the patient's physical condition.

[0073] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0074] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A chest drainage bottle, characterized in that, include: Drainage tube (100); A storage bottle (200) includes an inner bottle (210) and an outer bottle (220). The inner bottle (210) includes a first opening (212) and a second opening (214). The first opening (212) is connected to the drainage tube (100). The second opening (214) is disposed on the side wall of the inner bottle (210) and is connected to the outer bottle (220). There is a gap between the second opening (214) and the bottom of the inner bottle (210) in the direction of gravity, so that the liquid accumulated in the inner bottle (210) is greater than a first preset volume, and the liquid is discharged from the inner bottle (210) into the outer bottle (220) through the second opening (214).

2. The chest drainage bottle according to claim 1, characterized in that, The chest drainage bottle also includes: A fluid conduit (300), the fluid conduit (300) comprising: A first tube (310) has an opening at one end connected to a second opening (214), and the other end of the first tube (310) is located below the liquid level in the outer bottle (220).

3. The chest drainage bottle according to claim 2, characterized in that, The fluid conduit (300) also includes: The second tube (320) is connected to the first tube (310) and is used to guide gas into the liquid inside the outer bottle (220). The second tube (320) has a first branch tube (322) and a second branch tube (324). One end of the first branch tube (322) is connected to the first tube (310), and the other end of the first branch tube (322) is connected to the second branch tube (324). The first branch tube (322) is inclined upward relative to the first tube (310) at a first preset angle α along the direction of gravity, wherein 90° < α < 180°. The outlet of the second branch tube (324) is located below the liquid surface of the outer bottle (220). The connection between the first pipe body (310) and the first branch pipe (322) is a pipe body cross connection point, and the flow direction of the liquid in the first pipe body (310) is the first direction.

4. The thoracic drainage bottle according to claim 3, characterized in that, Also includes: A first check valve (410) is disposed inside the first pipe body (310), and the intersection points of the first check valve (410) and the pipe body are distributed sequentially along the first direction. The first check valve (410) includes: A valve plate (412) is installed on the inner wall of the first tube (310) at one end. The valve plate (412) can block or open the first tube (310) during rotation. The valve plate (412) has a first limit position. When the valve plate (412) is in the first limit position, it blocks the first tube (310). When the valve plate (412) is out of the first limit position, the first tube (310) is open. Limiting block (414), the limiting block (414) is disposed on the inner wall of the first tube body (310) and located at the first extreme position of the valve plate (412); The first elastic element (416) is telescopic and applies a first force to the valve plate (412), causing the valve plate (412) to move closer to the first limit position. The force exerted by the gas in the first tube (310) on the valve plate (412) is less than the force exerted by the first elastic element (416) on the valve plate (412). The liquid in the first tube (310) can push the first elastic element (416) to compress, causing the valve plate (412) to move away from the first limit position.

5. The thoracic drainage bottle according to claim 4, characterized in that, Also includes: A conical pressure-reducing cylinder (500) is disposed on the first tube body (310), and the points of intersection with the tube body are distributed sequentially along the first direction. The conical pressure-reducing cylinder (500) has a first end and a second end, the diameter of the first end is smaller than the diameter of the second end, and the first end and the second end are distributed sequentially along the first direction. At least one conical pressure-reducing cylinder (500) is provided along the axial direction of the first tube body (310).

6. The thoracic drainage bottle according to claim 5, characterized in that, The conical pressure-reducing cylinder (500) is provided with a leakage hole (510), and the number of leakage holes (510) on each conical pressure-reducing cylinder (500) is at least one.

7. The thoracic drainage bottle according to claim 6, characterized in that, When two or more conical pressure reducing cylinders (500) are provided, the leakage holes (510) on adjacent conical pressure reducing cylinders (500) are staggered.

8. The thoracic drainage bottle according to any one of claims 3 to 7, characterized in that, Also includes: A gas sensor (600) is disposed on the second branch pipe (324) to detect the volume of gas discharged from the second branch pipe (324) into the outer bottle (220).

9. The chest drainage bottle according to claim 1, characterized in that, The inner bottle (210) is also provided with a third opening (216), which allows the outside space to communicate with the inside space of the inner bottle (210); A rubber stopper is provided at the third opening (216).

10. The thoracic drainage bottle according to claim 1, characterized in that, The drainage tube (100) includes a disposable tube body (110) and a universal tube body (120). The universal tube body (120) is detachably connected to the disposable tube body (110). The universal tube body (120) is connected to the first opening (212). A second one-way valve (420) is provided between the universal tube body (120) and the first opening (212). Fluid in the universal tube body (120) can enter the inner bottle (210) through the second one-way valve (420). The second one-way valve (420) restricts the fluid in the inner bottle (210) from entering the universal tube body (120). And / or, the outer bottle (220) is provided with a third one-way valve (430), through which the gas in the outer bottle (220) can be discharged to the outside, and the third one-way valve (430) restricts the flow of external fluid into the outer bottle (220).

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