Closed chest drainage tube

Abstract

The utility model discloses a closed chest drainage tube which comprises a drainage tube body, the outer wall of the drainage tube body is sleeved with an outer sleeve, a gap is formed between the outer sleeve and the outer wall of the drainage tube body, a sealing ring is arranged at the position, close to the front end of the drainage tube body, of the outer wall of the drainage tube body, and a water spraying assembly is arranged at the front end of the outer wall of the drainage tube body. A fixing ring is arranged at the rear end of the outer wall of the drainage tube body, a liquid inlet tube is communicated with one side of the rear end of the outer wall of the sealing ring, a first quick connector is communicated with the rear end of the liquid inlet tube, a plurality of first one-way valves are communicated with the rear end of the outer wall of the sealing ring, and a waterproof film is arranged on the edge of the front end of each first one-way valve in a matched mode. The rear end of the drainage tube body is communicated with a communicating tube, and the rear end of the communicating tube is provided with a second quick connector. According to the flushing and drainage device, flushing and drainage operations can be achieved, the flushing and drainage operations can not influence each other during flushing and drainage, the flushing and drainage operations can be performed separately or simultaneously, and the applicability of the flushing and drainage device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a closed thoracic drainage tube. Background Art

[0002] Closed thoracic drainage is to place one end of the drainage tube into the thoracic cavity, and the other end is connected to a water seal bottle at a lower position, so as to discharge gas or collect the liquid in the thoracic cavity, so that the lung tissue can reopen and resume its function. As a treatment method, it is widely used in the drainage of hemothorax, pneumothorax, empyema and after thoracotomy, and plays a very important role in the treatment of diseases.

[0003] According to the utility model patent of the improved thoracic drainage tube with the patent number CN220213519U, it includes: a drainage tube body, which includes a main tube body and a flushing side interface and an injection side interface arranged on its side wall; a blocking clip is clamped near the head end of the main tube body; a detachable extension tube is externally connected to the flushing side interface and a flushing component is arranged therein; one end of the extension tube close to the flushing side interface is provided with a one-way valve, and its tail end is hermetically connected to a sealing cap body. By setting the flushing side interface and the injection side interface, the purpose of integrating flushing and injection in the thoracic drainage tube can be achieved, and many problems in the thoracic drainage process can be avoided.

[0004] When the above technical solution is used, although it has the purpose of integrating flushing and injection, both flushing and injection are operated through a single pipeline. Although it does not affect normal drainage, during flushing and injection, the liquid for injection and flushing will flush the original empyema and hemothorax liquid in the pipeline back into the patient's thoracic cavity again, which will seriously aggravate the patient's condition in severe cases. Moreover, it can only perform drainage and flushing operations separately and cannot be carried out simultaneously, so the applicability is low. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a closed thoracic drainage tube, which can not only realize the operations of flushing and drainage, but also will not affect each other during flushing and drainage. It can be operated separately or simultaneously, improving its applicability.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A closed - type thoracic drainage tube, comprising a drainage tube body. An outer sleeve made of a flexible material and matching with the drainage tube body is sleeved on the outer wall of the drainage tube body. A gap is left between the inner wall of the outer sleeve and the outer wall of the drainage tube body. A sealing ring for sealing connection with the inner wall of the outer sleeve is arranged at a position on the outer wall of the drainage tube body near its front end. A water - spraying assembly for sealing connection with the inner wall of the outer sleeve is arranged at the front end of the outer wall of the drainage tube body. A liquid storage cavity is formed between the water - spraying assembly and the sealing ring.

[0008] A fixing ring for connection with the inner wall of the outer sleeve is arranged at the rear end of the outer wall of the drainage tube body. One side at the rear end of the outer wall of the sealing ring is communicated with a liquid inlet tube that passes through the fixing ring and extends out of the rear end of the outer sleeve. One end of the liquid inlet tube extending out of the outer sleeve is communicated with a first quick - connector. The rear end of the outer wall of the sealing ring is communicated with a plurality of first one - way valves arranged backward. An elastic and deformable water - isolating membrane is arranged at the edge of the front end of each first one - way valve in a matching manner. A communicating tube communicated with the drainage tube body is arranged at the rear end of the drainage tube body. A second quick - connector communicated with the communicating tube is installed at the rear end of the communicating tube.

[0009] By adopting the above - mentioned technical solution, during use, the device is placed at the position in the patient's chest cavity that needs drainage and irrigation and fixed. Then, the communicating tube is connected to the drainage bottle through the second quick - connector to perform drainage and exhaust. The liquid of empyema and hemothorax is drained through the drainage tube. When irrigation is required, a syringe filled with irrigation liquid is communicated with the first quick - connector, and then the irrigation liquid flows into the liquid storage cavity along the liquid inlet tube. The air in the liquid storage cavity is squeezed out from the first one - way valve on the sealing ring as the liquid level rises. When the liquid storage cavity is filled with irrigation liquid, with continuous liquid inlet, each water - isolating membrane is squeezed and deformed backward and tightly adheres to the inner wall of the corresponding first one - way valve to block its outlet, preventing liquid leakage. At this time, the irrigation liquid will be sprayed out from the front end of the water - spraying assembly to frequently irrigate the affected area of the patient, and the irrigated liquid will flow out along the drainage tube at the same time, without affecting the normal drainage work of the drainage tube body during irrigation.

[0010] The improved setting of the present utility model is that: the water - spraying assembly includes a water - guiding ring arranged in a ring shape, a water inlet groove opened at the rear end of the outer wall of the water - guiding ring, and a plurality of water - spraying nozzles that are communicated with the front end of the outer wall of the water - guiding ring and are larger at the rear and smaller at the front to prevent backflow.

[0011] The further setting of the present utility model is that: one side at the rear end of the outer wall of the fixing ring is communicated with a ventilation tube, and a second one - way valve communicated with the ventilation tube is detachably connected to the rear end of the ventilation tube.

[0012] By adopting the above technical solution, after the catheterization is completed, the space between the sealing ring and the fixing ring can be inflated through the second one-way valve and the ventilation pipe. When increasing the hardness of its outer sleeve, it can not only prevent the pipeline from bending and folding, but also fit with the patient's wound to a certain extent and avoid shaking.

[0013] A further setting of the present utility model is that: along the length direction of the outer wall of the drainage tube body, a plurality of connecting rings which are arranged at equal intervals and are in a hollow shape and are connected to the inner wall of the outer sleeve are provided.

[0014] By adopting the above technical solution, the connecting rings can not only increase the stability between the outer sleeve and the drainage tube, but also avoid the pipeline bending to affect the normal drainage work to a certain extent.

[0015] To sum up, the present utility model has the following beneficial effects:

[0016] Firstly, the present utility model can not only realize the operations of flushing and drainage, but also there will be no mutual influence between the two during flushing and drainage. It can be operated separately or simultaneously, improving its applicability;

[0017] Secondly, the present utility model can not only discharge the air in the liquid inlet pipe during flushing to avoid air entering the patient's chest cavity, but also will not affect the sealing performance of the liquid storage cavity after discharging the air;

[0018] Thirdly, the ventilation pipe and the second one-way valve of the present utility model can inflate the outer sleeve during use, which can not only increase the hardness of the outer sleeve and prevent the pipeline from folding, but also increase the fitting degree with the patient's wound through the hardened outer sleeve. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the present utility model;

[0020] Figure 2 It is mainly used to show the position connection relationship of each component;

[0021] Figure 3 is the structural schematic diagram of the water spraying assembly of the present utility model;

[0022] Figure 4 It is mainly used to show the water isolation film and the first one-way valve.

[0023] In the figure: 1. Drainage tube body; 11. Outer sleeve; 12. Sealing ring; 13. Water spraying assembly; 14. Water guiding ring; 15. Water inlet groove; 16. Water spraying nozzle; 17. Liquid storage cavity; 18. Liquid inlet pipe; 19. First quick connector; 2. First one-way valve; 21. Water isolation film; 22. Fixed ring; 23. Vent pipe; 24. Second one-way valve; 25. Connection ring; 26. Connecting pipe; 27. Second quick connector. Detailed implementation manners

[0024] The following further elaborates on the present utility model in conjunction with the attached drawings.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0026] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0027] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Example, refer to Figures 1-4, A closed - type thoracic drainage tube, including a drainage tube body 1. An outer sleeve 11 made of a flexible material and matching with the drainage tube body 1 is sleeved on the outer wall of the drainage tube body 1. There is a gap between the inner wall of the outer sleeve 11 and the outer wall of the drainage tube body 1. A number of connecting rings 25 which are equally spaced and in a hollow shape and connected to the inner wall of the outer sleeve 11 are arranged along the length direction of the outer wall of the drainage tube body 1. A sealing ring 12 which is hermetically connected to the inner wall of the outer sleeve 11 is arranged at a position near the front end of the outer wall of the drainage tube body 1. A water - spraying assembly 13 which is hermetically connected to the inner wall of the outer sleeve 11 is arranged at the front end of the outer wall of the drainage tube body 1. The water - spraying assembly 13 includes a water - guiding ring 14 arranged in a ring shape, a water inlet groove 15 opened at the rear end of the outer wall of the water - guiding ring 14, and a number of water - spraying nozzles 16 which are connected to the front end of the outer wall of the water - guiding ring 14 and are smaller at the front and larger at the rear to prevent backflow. A liquid storage cavity 17 is formed between the water - spraying assembly 13 and the sealing ring 12. A fixing ring 22 which is connected to the inner wall of the outer sleeve 11 is arranged at the rear end of the outer wall of the drainage tube body 1.

[0029] One side of the rear end of the outer wall of the sealing ring 12 is communicated with a liquid inlet tube 18 which passes through the fixing ring 22 and extends out of the rear end of the outer sleeve 11. One end of the liquid inlet tube 18 extending out of the outer sleeve 11 is communicated with a first quick - connector 19. One side of the rear end of the outer wall of the fixing ring 22 is provided with a ventilation tube 23 communicated with it. The rear end of the ventilation tube 23 is detachably connected with a second one - way valve 24 communicated with it. The rear end of the outer wall of the sealing ring 12 is communicated with a plurality of first one - way valves 2 arranged backward. An elastic and deformable water - isolating film 21 is arranged in cooperation with the front - end edge of each first one - way valve 2. In the initial state, there is a gap between each water - isolating film 21 and the front - end edge of the corresponding first one - way valve 2. A communicating tube 26 communicated with the drainage tube body 1 is arranged at the rear end of the drainage tube body 1. A second quick - connector 27 communicated with it is installed at the rear end of the communicating tube 26.

[0030] Usage method: When in use, remove the second one - way valve 24 on the ventilation tube 23, then place the front ends of the outer sleeve 11 and the drainage tube body 1 at the position in the patient's chest cavity that needs drainage and irrigation and fix them. Then install the second one - way valve 24 on the ventilation tube 23, and use a syringe to inflate the ventilation tube 23 to make the gas fill the space between the sealing ring 12 and the fixing ring 22 and increase the hardness of the ventilation tube 23. The connecting rings 25 can reduce the degree of deformation of the drainage tube body 1 and the outer sleeve 11 during inflation. Then connect the communicating tube 26 to the drainage bottle through the second quick - connector 27 to perform drainage and irrigation. The liquid of empyema and hemothorax is drained through the drainage tube body 1.

[0031] When flushing is required, connect a syringe filled with flushing liquid to the first quick connector 19, and then let the flushing liquid flow along the liquid inlet pipe 18 into the liquid storage cavity 17. The air in the liquid storage cavity 17 is then squeezed out through the first one-way valve 2 on the sealing ring 12 as the liquid level rises. When the liquid storage cavity 17 is filled with flushing liquid, with continuous liquid inlet, each water isolation film 21 is squeezed and deformed backward and closely adheres to the inner wall of the corresponding first one-way valve 2 to block its outlet, preventing liquid leakage. At the same time, the flushing liquid will enter the water guide ring 14 through the water inlet groove 15 of the water spraying assembly 13, and then spray out from the front end of the water spraying nozzle 16 to flush the affected area of the patient. The flushing liquid can flow out along the drainage pipe at the same time, without affecting the normal drainage work of the drainage pipe body 1 during flushing.

[0032] This specific embodiment is only an interpretation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A closed thoracic drainage tube, comprising a drainage tube body (1), characterized in that: An outer sleeve (11) made of a flexible material and matching with the outer wall of the drainage tube body (1) is sleeved on the outer wall of the drainage tube body (1). A gap is left between the inner wall of the outer sleeve (11) and the outer wall of the drainage tube body (1). A sealing ring (12) that is hermetically connected to the inner wall of the outer sleeve (11) is arranged at a position on the outer wall of the drainage tube body (1) near its front end. A water spraying assembly (13) that is hermetically connected to the inner wall of the outer sleeve (11) is arranged at the front end of the outer wall of the drainage tube body (1). A liquid storage cavity (17) is formed between the water spraying assembly (13) and the sealing ring (12). A fixing ring (22) connected to the inner wall of the outer sleeve (11) is arranged at the rear end of the outer wall of the drainage tube body (1). A liquid inlet pipe (18) that penetrates through the fixing ring (22) and extends out of the rear end of the outer sleeve (11) is communicated with one side of the rear end of the outer wall of the sealing ring (12). A first quick connector (19) is communicated with the end of the liquid inlet pipe (18) extending out of the outer sleeve (11). A plurality of first one-way valves (2) arranged backward are communicated with the rear end of the outer wall of the sealing ring (12). An elastic and deformable water isolation film (21) is arranged in cooperation with the edge of the front end of each first one-way valve (2). A communicating pipe (26) communicated with the drainage tube body (1) is arranged at the rear end of the drainage tube body (1). A second quick connector (27) communicated with the communicating pipe (26) is installed at the rear end of the communicating pipe (26).

2. The closed thoracic drainage tube according to claim 1, characterized in that: The water spraying assembly (13) includes a water guiding ring (14) arranged in a ring shape, a water inlet groove (15) opened at the rear end of the outer wall of the water guiding ring (14), and a plurality of water spraying nozzles (16) that are communicated with the front end of the outer wall of the water guiding ring (14) and are small at the front and large at the rear to prevent backflow.

3. A closed thoracic drainage tube according to claim 1, characterized in that: A ventilation pipe (23) communicated with the fixing ring (22) is arranged at one side of the rear end of the outer wall of the fixing ring (22). A second one-way valve (24) communicated with the ventilation pipe (23) is detachably connected to the rear end of the ventilation pipe (23).

4. The closed thoracic drainage tube according to claim 1, characterized in that: A plurality of connecting rings (25) that are arranged at equal intervals along the length direction of the outer wall of the drainage tube body (1), are in a hollow shape, and are connected to the inner wall of the outer sleeve (11) are arranged on the outer wall of the drainage tube body (1).

Images