Thoracic cavity closed drainage anti-reflux device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a thoracic cavity closed drainage anti-reflux device. Comprising a drainage bottle, a sealing cover, a fixing pipe, an anti-backflow assembly, an exhaust pipe, a drainage pipe and a liquid outlet pipe, the top of the drainage bottle is of an opening structure, the sealing cover is arranged at the opening of the top of the drainage bottle in a threaded connection mode, the fixing pipe and the exhaust pipe are both arranged on the sealing cover, and the lower ends of the fixing pipe and the exhaust pipe are both arranged in the drainage bottle; the anti-backflow assembly is connected with the top of the fixing tube, the drainage tube is connected with the top of the anti-backflow assembly, and the liquid outlet tube is arranged on the side wall of the drainage bottle and communicated with the drainage bottle. The liquid can be prevented from entering the drainage tube through the flow guide hopper, so that the safety in the drainage process is improved, and the infection risk caused by backflow of a patient is avoided. The thoracic cavity closed drainage anti-reflux device is mainly applied to the thoracic cavity closed drainage anti-reflux aspect.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and more specifically to a closed chest drainage anti-backflow device. Background Art

[0002] Closed thoracic drainage is a medical technique used to drain fluid or gas from the chest cavity. It is commonly used to treat conditions such as pleural effusion and pneumothorax. Closed thoracic drainage involves inserting a drainage tube into the chest cavity to drain the fluid or gas out of the body. One end of the tube connects to the chest cavity, and the other end connects to a water seal bottle or other drainage device. The liquid in the water seal bottle acts as a seal, preventing air from entering the chest cavity while allowing the fluid or gas inside to drain out.

[0003] During traditional drainage bottle drainage, when the patient coughs, takes a deep breath, or changes body position, the pressure in the chest cavity will suddenly increase. This pressure change may cause the fluid inside the drainage bottle to flow back into the chest cavity, increasing the risk of infection and reducing safety during use. Utility Model Content

[0004] To overcome the shortcomings of the prior art, the present invention provides a closed chest drainage backflow prevention device. This device can prevent liquid from entering the interior of the drainage tube through the diversion funnel, thereby improving the safety of the drainage process and avoiding the risk of infection caused by backflow in patients.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A closed chest drainage and backflow prevention device comprises a drainage bottle, a sealing cover, a fixed tube, an anti-backflow assembly, an exhaust pipe, a drainage tube and a liquid outlet pipe. The top of the drainage bottle is an open structure. The sealing cover is arranged at the opening at the top of the drainage bottle by a threaded connection. The fixed tube and the exhaust pipe are both arranged on the sealing cover. The lower ends of the fixed tube and the exhaust pipe are both placed in the drainage bottle. The anti-backflow assembly is connected to the top of the fixed tube, the drainage tube is connected to the top of the anti-backflow assembly, the liquid outlet pipe is arranged on the side wall of the drainage bottle, and the liquid outlet pipe is connected to the drainage bottle.

[0007] The anti-backflow assembly includes a sealing cylinder, a guide bucket, a sealing block, a fixed rod, a guide cover and a fixed bracket. The guide bucket is arranged on the top of the inner wall of the sealing cylinder, and the fixed bracket is fixedly arranged on the inner wall of the sealing cylinder. A hole matching the fixed rod is arranged in the center of the fixed bracket. The fixed rod is slidably connected to the fixed bracket through the hole. The sealing block and the guide cover are respectively fixed at both ends of the fixed rod. The sealing block is matched with the bottom of the guide bucket, and the guide cover is matched with the inner wall of the sealing cylinder.

[0008] The guide hopper adopts a conical hopper structure, and the diameter of the upper opening of the guide hopper is larger than the diameter of the lower opening.

[0009] The sealing block adopts a conical block structure, and the sealing block is matched with the lower opening of the guide hopper.

[0010] The bottom of the sealing cylinder is connected to a first connector, and the top of the sealing cylinder is connected to a second connector.

[0011] The first connector is inserted into the top of the fixed tube.

[0012] The drainage tube is inserted into the top of the second connector.

[0013] The liquid outlet pipe is provided with a valve.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By setting up an anti-backflow component, specifically when the pressure in the chest cavity suddenly increases, such as when the patient coughs or changes body position, the liquid in the drainage bottle will try to flow back into the chest cavity. At this time, the pressure of the liquid pushes the deflector cover to move upward, and at the same time, the fixed rod slides upward along the inner wall of the fixed bracket, so that the top of the sealing block enters the interior of the deflector bucket, forming a seal, preventing the liquid from entering the interior of the drainage tube through the deflector bucket, improving the safety of the drainage process, and avoiding the risk of infection caused by backflow in patients. By setting up a first connector and a second connector, specifically the sealing cylinder is connected to the fixed tube and the drainage tube through the first connector and the second connector, it is convenient for subsequent disassembly and replacement, which improves the convenience of subsequent maintenance or cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0019] Figure 4 This is a schematic diagram of the structure of the anti-backflow component of the utility model;

[0020] Figure 5 This is a top view of the guide bucket of the utility model;

[0021] In the figure: 1 is a drainage bottle, 2 is a sealing cover, 3 is a fixed tube, 4 is a first connector, 5 is an anti-backflow component, 501 is a sealing cylinder, 502 is a diversion bucket, 503 is a sealing block, 504 is a fixing rod, 505 is a diversion cover, 506 is a fixed bracket, 6 is an exhaust pipe, 7 is a second connector, 8 is a drainage tube, 9 is a liquid outlet pipe, and 10 is a valve. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0024] like Figures 1 to 5 As shown, a closed chest drainage and backflow prevention device includes a drainage bottle 1, a sealing cover 2, a fixed tube 3, an anti-backflow component 5, an exhaust pipe 6, a drainage tube 8 and a liquid outlet pipe 9. The top of the drainage bottle 1 is an open structure, and the sealing cover 2 is arranged at the top opening of the drainage bottle 1 by a threaded connection. The fixed tube 3 and the exhaust pipe 6 are both arranged on the sealing cover 2, and the lower ends of the fixed tube 3 and the exhaust pipe 6 are both placed in the drainage bottle 1. The anti-backflow component 5 is connected to the top of the fixed tube 3, the drainage tube 8 is connected to the top of the anti-backflow component 5, and the liquid outlet pipe 9 is arranged on the side wall of the drainage bottle 1, and the liquid outlet pipe 9 is connected to the drainage bottle 1.

[0025] Preferably, the anti-backflow component 5 includes a sealing cylinder 501, a flow guide hopper 502, a sealing block 503, a fixed rod 504, a flow guide cover 505 and a fixed bracket 506. The flow guide hopper 502 is arranged on the top of the inner wall of the sealing cylinder 501, and the fixed bracket 506 is fixedly arranged on the inner wall of the sealing cylinder 501. A hole matching the fixed rod 504 is arranged in the center of the fixed bracket 506. The fixed rod 504 is slidably connected to the fixed bracket 506 through the hole. The sealing block 503 and the flow guide cover 505 are respectively fixedly arranged at both ends of the fixed rod 504. The sealing block 503 is matched with the bottom of the flow guide hopper 502, and the flow guide cover 505 is matched with the inner wall of the sealing cylinder 501.

[0026] When the pressure in the chest cavity suddenly increases, such as when the patient coughs or changes body position, the liquid in the drainage bottle 1 will try to flow back into the chest cavity. At this time, the pressure of the liquid pushes the deflector 505 to move upward, and at the same time, the fixing rod 504 slides upward along the inner wall of the fixing bracket 506, so that the top of the sealing block 503 enters the interior of the deflector 502, forming a seal, preventing the liquid from passing through the deflector 502 into the interior of the drainage tube 8, thereby improving the safety of the drainage process and avoiding the risk of infection caused by backflow in the patient.

[0027] Preferably, the guide scoop 502 adopts a conical scoop structure, and the diameter of the upper opening of the guide scoop 502 is larger than the diameter of the lower opening.

[0028] Preferably, the sealing block 503 adopts a conical block structure, and the sealing block 503 is matched with the lower opening of the guide hopper 502. The conical sealing block 503 ensures a sealing effect with the guide hopper 502.

[0029] Preferably, the bottom of the sealing cylinder 501 is connected to the first connector 4, and the top of the sealing cylinder 501 is connected to the second connector 7. This facilitates subsequent disassembly and replacement, thereby improving the convenience of subsequent maintenance or cleaning.

[0030] Preferably, the first connector 4 is inserted into the top of the fixed pipe 3 .

[0031] Preferably, the drainage tube 8 is inserted on the top of the second connector 7 .

[0032] Preferably, a valve 10 is provided on the liquid outlet pipe 9 .

[0033] When the pressure in the chest cavity suddenly increases, such as when the patient coughs or changes body position, the liquid in the drainage bottle 1 will try to flow back into the chest cavity. At this time, the pressure of the liquid pushes the deflector 505 to move upward, and at the same time, the fixing rod 504 slides upward along the inner wall of the fixing bracket 506, so that the top of the sealing block 503 enters the interior of the deflector bucket 502, forming a seal, preventing the liquid from passing through the deflector bucket 502 into the interior of the drainage tube 8, thereby improving the safety of the drainage process and avoiding the risk of infection caused by backflow in the patient. When the pressure returns to normal, the deflector 505 drives the fixing rod 504 to slide downward due to gravity, causing the sealing block 503 to move downward, so that the liquid inside the drainage tube 8 passes through the deflector bucket 502 into the interior of the sealing cylinder 501, and then flows into the drainage bottle 1. The sealing cylinder 501 is connected to the fixed tube 3 and the drainage tube 8 through the first connector 4 and the second connector 7, which is convenient for subsequent disassembly and replacement, thereby improving the convenience of subsequent maintenance or cleaning.

[0034] The above only describes in detail the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by ordinary technicians in this field, various changes can be made without departing from the purpose of the present invention, and various changes should be included in the scope of protection of the present invention.

Claims

1. A closed chest drainage and backflow prevention device, characterized by: The invention comprises a drainage bottle (1), a sealing cover (2), a fixed tube (3), an anti-backflow component (5), an exhaust pipe (6), a drainage tube (8) and a liquid outlet pipe (9), wherein the top of the drainage bottle (1) is an open structure, the sealing cover (2) is arranged at the top opening of the drainage bottle (1) by means of a threaded connection, the fixed tube (3) and the exhaust pipe (6) are both arranged on the sealing cover (2), the lower ends of the fixed tube (3) and the exhaust pipe (6) are both placed in the drainage bottle (1), the anti-backflow component (5) is connected to the top of the fixed tube (3), the drainage tube (8) is connected to the top of the anti-backflow component (5), the liquid outlet pipe (9) is arranged on the side wall () of the drainage bottle (1), and the liquid outlet pipe (9) is connected to the drainage bottle (1).

2. A closed chest drainage and anti-backflow device according to claim 1, characterized in that: The anti-backflow assembly (5) comprises a sealing cylinder (501), a flow guide hopper (502), a sealing block (503), a fixed rod (504), a flow guide cover (505) and a fixed bracket (506), wherein the flow guide hopper (502) is arranged on the top of the inner wall of the sealing cylinder (501), and the fixed bracket (506) is fixedly arranged on the inner wall of the sealing cylinder (501), and a hole matching the fixing rod (504) is arranged at the center of the fixing bracket (506), and the fixing rod (504) is slidably connected to the fixing bracket (506) through the hole, and the sealing block (503) and the flow guide cover (505) are respectively fixedly arranged at both ends of the fixing rod (504), the sealing block (503) is matched with the bottom of the flow guide hopper (502), and the flow guide cover (505) is matched with the inner wall of the sealing cylinder (501).

3. The closed chest drainage and backflow prevention device according to claim 2, characterized in that: The guide hopper (502) adopts a conical hopper structure, and the diameter of the upper opening of the guide hopper (502) is larger than the diameter of the lower opening.

4. The closed chest drainage and backflow prevention device according to claim 3, characterized in that: The sealing block (503) adopts a conical block structure, and the sealing block (503) is matched with the lower opening of the guide hopper (502).

5. The closed chest drainage and anti-backflow device according to claim 2, characterized in that: The bottom of the sealing cylinder (501) is connected to a first connector (4), and the top of the sealing cylinder (501) is connected to a second connector (7).

6. The closed chest drainage and backflow prevention device according to claim 5, characterized in that: The first connector (4) is inserted into the top of the fixed tube (3).

7. The closed chest drainage and anti-backflow device according to claim 5, characterized in that: The drainage tube (8) is inserted into the top of the second connector (7).

8. The closed chest drainage and backflow prevention device according to claim 1, characterized in that: The liquid outlet pipe (9) is provided with a valve (10).

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