Closed thoracic drainage device

Abstract

The closed thoracic drainage device comprises a cavity body, the top of the cavity body is provided with a drainage tube and a water injection opening which are arranged in an ectopic mode, and the lower section of the outer wall of the cavity body is provided with a liquid outlet assembly used for discharging internal liquid; wherein the drainage tube is communicated with the cavity body through the sealing cover; the liquid outlet assembly comprises a sealing sleeve block arranged on the cavity body, a fixing block arranged on one side of the sealing sleeve block and an annular block embedded in the side, away from the fixing block, of the sealing sleeve block. By optimizing the overall structure, the liquid outlet pipe can be stored, the liquid outlet pipe is effectively prevented from being collided in the taking process due to protrusion, the risk that the drainage bottle cracks or is broken is reduced, the integrity of the whole device is guaranteed, the drainage bottle can continuously and normally contain drainage liquid, and the drainage effect is improved. Meanwhile, leaked drainage liquid is prevented from polluting the surrounding environment, and the practicability and safety of the drainage device are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to drainage device technical field especially, relates to a chest closed drainage device. BACKGROUND

[0002] The chest closed drainage is mainly based on the change of the pressure in the chest and the siphon effect of the water seal device, under normal circumstances, the pressure in the chest is negative, when the chest produces gas, fluid or blood due to external injury, disease and other reasons, the pressure in the chest will change, by placing the drainage tube in the chest, connected to the water seal device, using the one-way valve effect formed by the liquid in the water seal device, the gas or liquid in the chest is discharged outside under the action of pressure difference, at the same time, prevent the outside air from entering the chest, thereby restoring and maintaining the negative pressure in the chest, promoting the lung recruitment.

[0003] The existing drainage device needs to change water every day, because the structure design is unreasonable, when changing water, the water discharge and water addition are operated at the same outlet, and both are opened from the top drainage tube installation position, which is easy to mix and contaminate and inconvenient to operate, and sometimes it needs to be coordinated by multiple people. Moreover, frequent operation of the outlet will cause damage to the sealing cooperation at this position, resulting in reduced sealing performance.

[0004] Chinese open patent CN215652887U proposes a chest closed drainage device, which comprises a drainage bottle, the outer surface of the drainage bottle is threadedly connected with a closed cover, the inner wall of the closed cover is fixedly connected with a flow guide pipe, the flow guide pipe penetrates through the closed cover and extends to the outside of the drainage bottle, the top end of the flow guide pipe is threadedly connected with a connecting pipe, the top end of the connecting pipe is rotatably connected with a drainage tube, the inside of the drainage tube is fixedly connected with a one-way valve, the top end of the closed cover is fixedly connected with an exhaust pipe, and the exhaust pipe penetrates through the closed cover and extends to the outside. In the utility model, the adjusting cylinder and the adjusting rod are arranged, when it is necessary to adjust the negative pressure in the drainage bottle, the negative pressure in the drainage bottle can be adjusted by pulling the adjusting rod to make the drainage unobstructed, and the drawbacks that the traditional opening of the closed cover easily causes many bacteria in the drainage bottle to contaminate the drainage liquid are solved, and the infection rate of patients is reduced. However, the overall structure is relatively complex, and the liquid outlet pipe is arranged protrudingly, which is easy to be bumped in daily taking, thereby causing cracks or even breakage of the drainage bottle, resulting in failure to normally contain the drainage liquid, so that the whole chest closed drainage device loses its function, and the leaked drainage liquid may also pollute the surrounding environment.

[0005] Based on the above technical problems, the utility model provides a chest closed drainage bottle. SUMMARY

[0006] The chest cavity closed drainage device provided by the application aims at the technical problem that the drainage device cannot normally hold drainage liquid due to poor sealing of the water inlet and liquid outlet and easy to be knocked in daily taking because of unreasonable structure design in the background art.

[0007] To solve at least one of the above technical problems, the technical scheme adopted by the application is:

[0008] A chest cavity closed drainage device, comprising a cavity body, a drainage tube and a water inlet being arranged at the top of the cavity body, and a liquid outlet assembly being arranged at the lower segment of the outer wall of the cavity body for discharging internal liquid; wherein,

[0009] The drainage tube is in communication with the cavity body through a sealing cover;

[0010] The liquid outlet assembly comprises a sealing sleeve block arranged on the cavity body, a fixed block arranged on one side of the sealing sleeve block, and an annular block embedded on the side of the sealing sleeve block away from the fixed block;

[0011] The sealing sleeve block is further provided with a liquid outlet pipe movably matched therewith, and the sealing sleeve block is fixedly matched with the cavity body; the fixed block is partially fixedly matched with the sealing sleeve block and movably matched with the liquid outlet pipe, and the annular block is movably matched with the sealing sleeve block.

[0012] Optionally, a protruding sealing soft tube is arranged on one side of the sealing sleeve block in the cavity body; the liquid outlet pipe is movably sleeved in the sealing sleeve block and communicates with the sealing soft tube, and an external thread is arranged on the outer wall surface of the liquid outlet pipe; an annular groove is further arranged on the side of the sealing sleeve block close to the liquid outlet pipe, and the annular groove surrounds the liquid outlet pipe.

[0013] Optionally, an internal thread is arranged in the annular block and matched with the outer wall of the liquid outlet pipe; an annular boss matched with the annular groove is further arranged on the end of the annular block close to the sealing sleeve block, and the end of the annular block away from the sealing sleeve block is arranged as a flat surface; a plurality of misaligned stripe segments are arranged on the outer wall surface of the annular block, and the stripe segments are arranged along the height of the annular surface of the annular block.

[0014] Optionally, a sealing plug matched with the sealing soft tube is arranged on the fixed block; and four supporting tables are symmetrically arranged on the outer side of the sealing plug and fixedly arranged on the sealing sleeve block.

[0015] Optionally, the sealing cover is threadedly connected with the cavity body, and a connecting pipe in communication with the drainage tube is further arranged on the sealing cover.

[0016] Optionally, a flow guide pipe in communication with the connecting pipe is arranged at the end of the sealing cover inside the cavity body, and the drainage pipe is in communication with the cavity body through the connecting pipe and the flow guide pipe.

[0017] Optionally, the water injection port is arranged at the end of the top of the cavity body, and the sealing cover is arranged at the middle position of the top of the cavity body.

[0018] Optionally, a plug cap in sealing cooperation with the water injection port is arranged at the water injection port.

[0019] Optionally, protective sleeves are sleeved on the upper and lower ends of the cavity body respectively; and a one-way pressure relief valve for adjusting the internal pressure of the cavity body is arranged on the upper surface of the sealing cover.

[0020] Optionally, a scale mark is arranged on the outer wall surface of the cavity body.

[0021] The thoracic cavity closed drainage device designed in the application can accommodate the liquid outlet pipe, effectively avoids the liquid outlet pipe from being knocked during the taking process due to protrusion, reduces the risk of cracks or breakage of the drainage device, guarantees the integrity of the entire device, enables the device to continuously and normally contain the drainage liquid, prevents the leaked drainage liquid from polluting the surrounding environment, and greatly improves the practicality and safety of the drainage device. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structure schematic diagram of a thoracic cavity closed drainage device in the application;

[0023] Figure 2 is a structure schematic diagram of a thoracic cavity closed drainage device in the application; Figure 1 is a partially split structure schematic diagram in the application;

[0024] Figure 3 is a structure schematic diagram of a thoracic cavity closed drainage device in the application; Figure 1 is an internal cross-sectional structure schematic diagram of the drainage device in the application;

[0025] Figure 4 is a split structure schematic diagram of a liquid outlet assembly in the application. Figure 3

[0026] Reference signs:

[0027] 1, cavity body; 2, sealing cover; 3, connecting pipe; 4, flow guide pipe; 5, drainage pipe; 6, water injection port; 7, plug cap; 8, liquid outlet assembly; 81, sealing sleeve block; 82, sealing soft cylinder; 83, liquid outlet pipe; 84, annular groove; 85, annular block; 86, stripe segment; 87, support table; 88, fixed block; 89, sealing plug; 9, protective sleeve; 10, clasp; 11, scale mark; 12, one-way pressure relief valve. DETAILED DESCRIPTION​

[0028] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0029] This embodiment proposes a closed chest drainage device, such as... Figure 1 As shown, the device includes a cavity body 1, with a drainage pipe 5 and a water inlet 6 disposed at the top of the cavity body 1, and a liquid outlet assembly 8 for discharging internal liquid constructed on the lower section of the outer wall of the cavity body 1. The drainage pipe 5 communicates with the cavity body 1 via a sealing cap 2; the sealing cap 2 is threadedly connected to the cavity body 1 to ensure the sealing of the cavity body 1 at the drainage point. The liquid outlet assembly 8 includes a sealing sleeve 81 disposed on the cavity body 1, a fixing block 88 disposed on one side of the sealing sleeve 81 and internally disposed within the cavity body 1, and an annular block 85 embedded on the side of the sealing sleeve 81 away from the fixing block 88. A liquid outlet pipe 83 is also disposed on the sealing sleeve 81 and is movably fitted therewith. The sealing sleeve 81 is fixedly fitted to the cavity body 1 and penetrates the wall thickness of the cavity body 1; the fixing block 88 is partially fixedly fitted to the sealing sleeve 81 inside the cavity body 1, and is movably fitted to the liquid outlet pipe 83; the annular block 85 is movably fitted to the liquid outlet pipe 83 via the sealing sleeve 81.

[0030] In use, the outlet pipe 83 is directly sealed to the fixing block 88, which is fixed inside the cavity body 1, via the sealing sleeve 82 on the sealing sleeve 81, thus blocking the outlet pipe 83. Simultaneously, the annular block 85 is embedded within the sealing sleeve 81, fixing the outlet pipe 83 to the wall of the cavity body 1 via the sealing sleeve 81, thereby securing the outlet pipe 83. When liquid needs to be discharged, the annular block 85 is unscrewed, and the outlet pipe 83 is separated from the fixing block 88 fixed inside the cavity body 1, but not completely separated from the sealing sleeve 81. Liquid can then flow out through the gap between the outlet pipe 83 and the fixing block 88, through the sealing sleeve 82, and then through the outlet pipe 83. This structure not only allows the outlet tube 83 to be embedded in the cavity body 1, making it retractable within the cavity body 1, but also effectively prevents the outlet tube 83 from being easily bumped during handling due to its excessive protrusion from the outer wall of the cavity body 1. This reduces the risk of cracks or breakage in the drainage device, ensuring the integrity of the entire device and allowing it to continuously and normally hold drainage fluid. Simultaneously, it ensures the sealing of the outlet tube 83 during each use, preventing leakage of drainage fluid and environmental pollution, greatly improving the practicality and safety of the drainage device.

[0031] like Figure 2As shown, the sealing cover 2 is threadedly connected with the cavity body 1, and a connecting pipe 3 in communication with the drainage tube 5 is further arranged on the sealing cover 2, that is, the connecting pipe 3 is fixedly arranged with the sealing cover 2, and the drainage tube 5 is detachably connected with the connecting pipe 3. Thus, when the drainage tube 5 is installed on the connecting pipe 3, the interface needs to be sterilized in advance, which is not only safe but also facilitates timely replacement of the drainage tube 5, thereby ensuring the hygiene of the drainage device. The sealing cover 2 is arranged at one end of the inner side of the cavity body 1 and is provided with a flow guide pipe 4 in communication with the connecting pipe 3, and the drainage tube 5 is in communication with the cavity body 1 through the connecting pipe 3 and the flow guide pipe 4 in sequence. The lower end of the flow guide pipe 4 is close to the bottom of the cavity body 1, which is mainly beneficial to guide flow and ensure that liquid does not splash during drainage.

[0032] Meanwhile, a one-way pressure relief valve 12 for adjusting the pressure inside the cavity body 1 is further arranged on the upper surface of the sealing cover 2 and is disposed beside the connecting pipe 3. The one-way pressure relief valve 12 facilitates adjustment of the pressure of the drainage device, so that the gas or liquid in the thoracic cavity is discharged out of the body under the action of the pressure difference, while preventing external air from entering the thoracic cavity, thereby recovering and maintaining the negative pressure in the thoracic cavity and promoting the re-expansion of the lung.

[0033] Optionally, a water inlet 6 is arranged at the end of the top of the cavity body 1, and the sealing cover 2 is disposed at the middle position of the top of the cavity body 1. Meanwhile, the liquid outlet assembly 8 and the water inlet 6 are located on the same side of the width of the cavity body 1, which facilitates processing. In order to ensure the sealing property of the drainage device as a whole, a plug 7 in sealing cooperation with the water inlet 6 is further arranged on the water inlet 6, which facilitates plugging of the water inlet 6 after water is added to the inside of the cavity body 1.

[0034] In order to further improve the protection of the drainage device, optionally, protective sleeves 9 in detachable cooperation with the cavity body 1 are respectively sleeved on the upper and lower ends of the cavity body 1. Of course, whether the protective sleeves 9 are arranged or not can be determined based on the actual situation, and this is not strictly required.

[0035] Optionally, a scale mark 11 for observing the height of the liquid inside is further arranged on the outer wall surface of the cavity body 1.

[0036] Optionally, a plurality of clamping rings 10 are fixedly sleeved on the outer wall of the connecting pipe 3, which can stably and sealingly clamp the connecting pipe 3 and the drainage tube 5, thereby enhancing the stability of the connection between the connecting pipe 3 and the drainage tube 5 and preventing slipping. Of course, the connecting pipe 3 and the drainage tube 5 and the flow guide pipe 4 can also be connected in the existing conventional plug-in type connection mode, which can also ensure the air tightness of the connection.

[0037] As shown in the drawings, Figures 3-4As shown, the liquid outlet assembly 8 is fixedly mounted on the outer wall of the cavity body 1 and is in sealing connection with the cavity body 1, and is mainly used for discharging the accumulated liquid collected in the cavity body 1. Specifically, the sealing sleeve block 81 is arranged on one side of the cavity body 1 and is further provided with a sealing soft tube 82 arranged in a protruding manner. The sealing soft tube 82 is integrally arranged with the sealing sleeve block 81. The liquid outlet pipe 83 is movably sleeved in the sealing sleeve block 81 and is in communication with the sealing soft tube 82. The sealing soft tube 82 is made of soft material and can be shrunk towards one side of the cavity body 1 by pressing, so as to avoid damage and air leakage.

[0038] The sleeving mode of the liquid outlet pipe 83 and the sealing sleeve block 81 can be a slip-on type, a threaded cooperation type, a clamping cooperation type, or a plug-in cooperation type, which is not specifically limited here, as long as the sealing property of the cooperation between the liquid outlet pipe 83 and the sealing sleeve block 81 can be ensured.

[0039] The liquid outlet pipe 83 is fixedly arranged at the outer end of the cavity body 1 and is embedded in the sealing sleeve block 81 and arranged to extend outwardly, but the liquid outlet end of the liquid outlet pipe 83 is not protruded on the outer end surface of the sealing sleeve block 81. The purpose is to ensure that the liquid outlet pipe 83 is embedded on the sealing sleeve block 81 and is accommodated on the outer wall of the cavity body 1.

[0040] Optionally, an external thread is arranged on the outer wall of the liquid outlet pipe 83, which is used to cooperate with the internal thread of the annular block 85, so that the liquid outlet pipe 83 is fixed in the sealing sleeve block 81 and is indirectly fixed on the outer wall of the cavity body 1.

[0041] The side of the sealing sleeve block 81 close to the liquid outlet pipe 83 is further provided with an annular groove 84, and the annular groove 84 surrounds the liquid outlet pipe 83. The annular block 85 is internally provided with an internal thread for cooperating with the outer wall of the liquid outlet pipe 83, which is used to further fix the liquid outlet pipe 83 on the sealing sleeve block 81. The threaded cooperation between the annular block 85 and the liquid outlet pipe 83 facilitates the telescopic accommodation of the liquid outlet pipe 83 and facilitates the liquid discharge. That is, when the liquid outlet pipe 83 discharges liquid, the annular block 85 is controlled to separate the sealing soft tube 82 and the sealing plug 89 through the liquid outlet pipe 83, so that the liquid flows through the sealing soft tube 82 and the liquid outlet pipe 83 and is discharged.

[0042] The end of the annular block 85 close to the sealing sleeve block 81 is further provided with an annular boss matched with the annular groove 84, which facilitates the quick embedding of the annular block 85 in the sealing sleeve block 81 and the stable rotational cooperation between the annular block 85 and the liquid outlet pipe 83. The end of the annular block 85 away from the sealing sleeve block 81 is configured as a flat surface and is flush with the outer wall of the sealing sleeve block 81 after cooperating with the liquid outlet pipe 83, so as to ensure that the liquid outlet pipe 83 is accommodated on the cavity body 1.

[0043] Optionally, a plurality of misaligned stripe segments 86 are configured on the outer wall surface of the annular block 85, and the stripe segments 86 are arranged along the height of the annular surface of the annular block 85 and penetrate the outer wall surface of the annular block 85. The purpose is to have a certain friction between the annular groove 84 and the annular block 85, so as to ensure that the threaded cap 86 cannot be rotated at will.

[0044] Optionally, the fixed block 88 is provided with a sealing plug 89 movably matched with the sealing soft tube 82, and four support tables 87 are symmetrically arranged outside the sealing plug 89, and the suspended ends of the support tables 87 are fixedly connected to the inner side wall of the sealing sleeve block 81. The sealing plug 89 can be directly sealed with the liquid outlet pipe 83 through the sealing soft tube 82 after being received, so as to prevent the liquid in the cavity body 1 from flowing out. The plurality of support tables 87 can fix the fixed block 88 on the sealing sleeve block 81, so as to fix the sealing plug 89 and stabilize the structure of the liquid outlet assembly.

[0045] In use, the protective sleeve 9 can be sleeved at the upper and lower ends of the cavity body 1 to protect the drainage device from being damaged by accidental collision. Then, the drainage pipe 4 and the connecting pipe 3 are connected, so that they are tightly fixed at the bottle opening of the cavity body 1 through threaded connection together with the sealing cover 2. Then, the drainage pipe 5 is communicated with the connecting pipe 3 to ensure the sealing of the whole device.

[0046] When the closed thoracic drainage operation is needed, the drainage pipe 5 is inserted into the patient's thoracic cavity at a suitable position. Under the action of pressure difference, the effusion and gas in the thoracic cavity will flow into the cavity body 1 through the drainage pipe 5, the connecting pipe 3 and the drainage pipe 4. In the drainage process, the one-way pressure relief valve 12 on the sealing cover 2 plays a key role. If the pressure in the cavity body 1 is too high and exceeds the set threshold, the one-way pressure relief valve 12 will automatically open to discharge a proper amount of gas outward, so as to adjust the pressure in the bottle and ensure that the drainage process is safe and stable, avoiding harm to the patient or affecting the drainage effect due to excessive pressure.

[0047] At the same time, the scale mark 11 arranged on the outer wall of the cavity body 1 can be used by medical staff to observe the volume of the drainage liquid in real time and accurately master the effusion discharge condition in the patient's thoracic cavity, so as to provide accurate data basis for subsequent treatment.

[0048] With the continuous drainage, the liquid in the cavity body 1 gradually increases. When it is needed to discharge the liquid in the device, the liquid discharge assembly 8 is operated to discharge the liquid. Specifically, the annular block 85 is rotated. Since the annular block 85 is threadedly sleeved with the liquid outlet pipe 83 and the annular block 85 moves in the annular groove 84, the annular block 85 can drive the liquid outlet pipe 83 to move along the height direction of the liquid outlet pipe 83 relative to the sealing sleeve block 81, so as to separate the sealing soft tube 82 from the sealing plug 89, that is, to pull out the sealing plug 89 from the sealing sleeve block 81. At this time, the liquid in the device is discharged outward in turn through the sealing soft tube 82 and the liquid outlet pipe 83 under the action of gravity.

[0049] In addition, if water needs to be added to the cavity body 1, the plug cap 7 at one end of the water inlet 6 can be opened, and water can be injected into the cavity body 1 through the water inlet 6, which is convenient to operate. The various parts of the whole thoracic cavity closed drainage device work cooperatively, effectively realize the function of thoracic cavity closed drainage, and provide strong guarantee for the treatment of patients.

[0050] The thoracic cavity closed drainage device designed in the application can accommodate the liquid outlet pipe, effectively avoids the liquid outlet pipe from being knocked during the taking process due to protrusion, reduces the risk of cracks or breakage of the drainage device, guarantees the integrity of the whole device, enables it to continuously and normally contain the drainage liquid, prevents the leakage of the drainage liquid from polluting the surrounding environment, and greatly improves the practicality and safety of the drainage device.

[0051] The above describes the embodiments of the application in detail, and the content is only the preferred embodiments of the application and cannot be considered as limiting the scope of the application. Any equivalent changes and improvements made within the scope of the application should still belong to the patent coverage range of the application.

Claims

1. A chest drainage apparatus, characterized in that, The cavity body is provided with a drainage tube and a water injection port arranged at a top portion of the cavity body, and a liquid outlet assembly for discharging liquid in the cavity body is arranged at a lower portion of an outer wall of the cavity body. The drainage tube is in communication with the cavity body through a sealing cover. The liquid outlet assembly comprises a sealing sleeve block arranged on the cavity body, a fixing block arranged on one side of the sealing sleeve block, and an annular block embedded on a side of the sealing sleeve block away from the fixing block. A liquid outlet pipe movably arranged on the sealing sleeve block is movably arranged on the sealing sleeve block, and the sealing sleeve block is fixedly arranged on the cavity body.

2. The closed thoracic drainage device according to claim 1, characterized in that The fixing block is movably arranged on the sealing sleeve block and movably arranged on the liquid outlet pipe, and the annular block is movably arranged on the sealing sleeve block.

3. A closed chest drainage device according to claim 2, wherein, A protruding sealing soft tube is arranged on one side of the sealing sleeve block in the cavity body.

4. The closed thorax drainage device according to claim 2, characterized in that The liquid outlet pipe is movably arranged in the sealing sleeve block and in communication with the sealing soft tube, and an external thread is arranged on an outer wall surface of the liquid outlet pipe.

5. A closed chest drainage device according to any one of claims 1-4, characterized in that An annular recess is arranged on a side of the sealing sleeve block close to the liquid outlet pipe, and the annular recess surrounds the liquid outlet pipe.

6. A closed chest drainage device according to claim 5, wherein, An internal thread is arranged in the annular block and in communication with the outer wall of the liquid outlet pipe.

7. A closed chest drainage device according to any of claims 1-4, 6, characterized in that, An annular protrusion is arranged on an end of the annular block close to the sealing sleeve block, and a flat surface is arranged on an end of the annular block away from the sealing sleeve block.

8. A closed chest drainage device according to claim 7, wherein, A sealing plug is arranged on the fixing block and in communication with the sealing soft tube.

9. The closed thorax drainage device according to claim 1, wherein Four support platforms are symmetrically arranged on an outer side of the sealing plug and fixedly arranged on the sealing sleeve block.

10. The closed thorax drainage device according to claim 1, wherein The sealing cover is threadedly connected to the cavity body, and a connecting pipe in communication with the drainage tube is arranged on the sealing cover. A guide pipe in communication with the connecting pipe is arranged on an end of the sealing cover inside the cavity body, and the drainage tube is in communication with the cavity body through the connecting pipe and the guide pipe. The water injection port is arranged at an end of the cavity body, and the sealing cover is arranged at an intermediate position of the cavity body. A plug cap in sealing communication with the water injection port is arranged on the water injection port. Protective sleeves are arranged on upper and lower ends of the cavity body. A one-way pressure relief valve for adjusting the internal pressure of the cavity body is arranged on an upper surface of the sealing cover. A scale is arranged on an outer wall surface of the cavity body.

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