Multipurpose anti-reflux adjustable speed drainage bag

Abstract

This invention provides a multi-purpose anti-backflow adjustable drainage bag, comprising a drainage collection bag, a negative pressure shell, a negative pressure suction structure, a drainage pipe, a reservoir, a connector, and a flow regulating switch. The drainage collection bag is suspended inside the negative pressure shell, and the negative pressure suction structure is installed on one side of the negative pressure shell. The drainage pipe is fixedly installed on the interface at the upper end of the drainage collection bag. The reservoir is fixedly installed inside the drainage pipe, and the connector is fixedly installed at one end of the drainage pipe. The flow regulating switch is installed on the outside of the drainage pipe. The design of the negative pressure shell, reservoir, and connector prevents backflow of the collected fluid, allows for flexible adjustment of the flow rate according to the patient's actual condition, and features multiple interfaces, making it widely applicable.

Description

Technical Field

[0001] This utility model relates to the field of drainage therapy technology, and in particular to a multi-purpose anti-backflow adjustable speed drainage bag. Background Technology

[0002] With the continuous development of medical technology, modern medicine has an increasing demand for drainage devices, especially in surgery, trauma treatment, and postoperative recovery. Drainage devices, as indispensable auxiliary tools, play a crucial role in removing accumulated fluid, reducing the risk of infection, and promoting patient recovery. Currently, most drainage devices on the market use conventional drainage bags and tube systems. While these devices can perform basic drainage functions, they still have some problems and shortcomings in use.

[0003] Traditional drainage devices primarily rely on the physical action of drainage bags, using gravity or simple negative pressure to remove fluid. Because drainage systems often carry the risk of backflow, this not only leads to equipment contamination but may also increase the patient's risk of infection. Furthermore, traditional devices typically have a fixed drainage rate, making it difficult to adjust flexibly according to the patient's condition and failing to meet the drainage needs of different types of fluid accumulation. This makes it difficult to guarantee adequate treatment outcomes in some special cases.

[0004] Therefore, it is essential to invent a multi-purpose anti-backflow adjustable speed drainage bag. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a multi-purpose anti-backflow adjustable-speed drainage bag, solving the issues of existing drainage bags such as easy backflow of collected body fluid, difficulty in flexibly adjusting the flow rate according to the patient's actual condition, single interface, and limited applicability. A multi-purpose anti-backflow adjustable-speed drainage bag includes a drainage collection bag, a negative pressure shell, a negative pressure suction structure, a drainage pipe, a reservoir, a connector, and a flow regulating switch. The drainage collection bag is suspended inside the negative pressure shell, and the negative pressure suction structure is installed on one side of the negative pressure shell. The drainage pipe is fixedly installed on the interface at the upper end of the drainage collection bag. The reservoir is fixedly installed inside the drainage pipe, and the connector is fixedly installed at one end of the drainage pipe. The flow regulating switch is installed on the outside of the drainage pipe.

[0006] The negative pressure housing includes a sealed housing, a suspension bracket, a sealing strip, a sealing cover, a negative pressure pipe, and a connecting pipe. The suspension bracket is fixedly installed at the bottom of the sealed housing, and a drainage collection bag is suspended above it. The sealing strip is slidably installed inside a slot on the outside of the sealed housing, and the inlet and outlet pipes of the drainage collection bag are embedded inside the slot on the outside of the sealed housing. The sealing cover is installed on the sealed housing by a hinge. The negative pressure pipe is fixedly installed on one side of the sealed housing, and the connecting pipe is inserted into one end of the negative pressure pipe.

[0007] The reservoir includes a reservoir space, an inlet pipe, a check valve, an outlet pipe, and a sampling pipe. The inlet pipe and the outlet pipe are fixedly installed at both ends of the reservoir space. A check valve is fixedly installed at one end of the inlet pipe. The sampling pipe is fixedly installed on the reservoir space.

[0008] The connector includes a support pipe, a threaded interface, a connecting rope, and a straight insertion port. The support pipe is fixedly installed at one end of the drainage pipe, and the connecting rope is fixedly installed on the outside of the support pipe. The straight insertion port is fixedly installed at one end of the connecting rope and inserted into the inside of the threaded interface.

[0009] The internal sealing shell of the negative pressure housing is a rectangular plastic shell, and the suspension bracket is a set of columnar plastic bodies. The sealing strip is a silicone block with an arc-shaped front end; the arc of the arc groove at the front end of the sealing strip is consistent with the arc of the pipe extending outward from the drainage collection bag; the sealing cover is a plastic cover, and a sealing strip is provided on the inner wall of the sealing cover, and the sealing cover can seal the sealing shell; the negative pressure pipe is a plastic pipe, and the negative pressure pipe can be directly connected to the negative pressure machine. This negative pressure pipe can be connected to the negative pressure extraction structure after inserting an adapter pipe, and has the following functions: ① Creating a negative pressure environment: through the negative pressure pipe ① It draws air outward, creating negative pressure that causes the drainage collection bag to expand, thereby inducing the suction and discharge of liquid; ② It supports the stability of the drainage system: The negative pressure shell provides physical structural support, ensuring the stable operation of the drainage collection bag and the negative pressure suction structure, and preventing leakage or deformation; ③ It optimizes the liquid drainage effect: By maintaining a negative pressure state, the negative pressure shell allows the drainage collection bag to expand effectively and generate sufficient suction to help quickly drain the accumulated fluid in the patient's body, ensuring the high efficiency of the drainage process; ④ It is reusable: The negative pressure shell does not come into direct contact with the patient's body fluids, ensuring the hygiene and safety of the equipment, and it can be reused after cleaning and disinfection.

[0010] The reservoir contains a capsule-shaped plastic bladder, and the inlet tube allows only unidirectional flow of fluid via a check valve. The sampling tube is an outward-extending tube. The top of the sampling tube is sealed with a rubber stopper, which allows insertion of a syringe needle. A clip can be installed on the outside of the outlet tube inside the reservoir, sealing the outlet tube and preventing fluid from flowing out. This serves the following functions: ① Storing drainage fluid: The reservoir collects and stores bodily fluids or accumulated fluid drained through the drainage tube, ensuring no leakage or overflow; ② Prevents backflow: An internal check valve prevents fluid from flowing back into the drainage pipe or other parts of the drainage system, ensuring unidirectional flow and improving drainage efficiency; ③ Facilitates fluid sampling: Samples can be easily taken from the reservoir for testing or analysis through the sampling pipe, facilitating doctors' monitoring of changes in the patient's condition; ④ Alleviates the effects of negative pressure: Under negative pressure, the reservoir provides a safe space for the fluid, preventing negative pressure from directly affecting the body fluid and reducing interference with the patient; ⑤ Assists sampling: After a clip is installed on the outside of the outlet pipe inside the reservoir, fluid will accumulate inside the reservoir, at which point sampling can be performed.

[0011] The straight insertion port inside the connector allows for the replacement of the interface at the top of the drainage tube by inserting into the threaded interface. It serves the following functions: ① Tube connection: As a key component, the connector connects the drainage tube to the tube exiting the patient's body, ensuring that accumulated fluid can be smoothly drained to an external fluid storage system; ② Easy installation and disassembly: The connector's design simplifies the connection process, facilitating installation and disassembly by medical personnel, while ensuring it will not detach or loosen during use; ③ Multi-purpose functionality: The design includes two different types of connectors, which can be replaced as needed, providing broader adaptability and meeting the drainage system requirements of different medical environments or patients.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The negative pressure housing of this utility model has the following functions: ① Creating a negative pressure environment: Air is drawn out through the negative pressure pipe to form a negative pressure, causing the drainage collection bag to expand, thereby triggering the suction and discharge of liquid; ② Supporting the stability of the drainage system: The negative pressure housing provides physical structural support to ensure the stable operation of the drainage collection bag and the negative pressure suction structure, avoiding leakage or deformation; ③ Optimizing the liquid drainage effect: By maintaining the negative pressure state, the negative pressure housing allows the drainage collection bag to expand effectively and generate sufficient suction to help quickly drain the accumulated fluid in the patient's body, ensuring the high efficiency of the drainage process; ④ Reusable: The negative pressure housing does not come into direct contact with the patient's body fluids, ensuring the hygiene and safety of the equipment, and can be reused after cleaning and disinfection.

[0014] 2. The reservoir of this utility model has the following functions: ① Storing drainage fluid: The reservoir is used to collect and store bodily fluids or accumulated fluids drained through the drainage tube, ensuring that the fluid does not leak or overflow; ② Preventing backflow: An internal check valve prevents fluid from flowing back into the drainage tube or other parts of the drainage system, ensuring unidirectional flow and improving drainage efficiency; ③ Facilitating fluid sampling: Through the sampling tube, samples can be easily taken from the reservoir for testing or analysis, facilitating doctors to monitor changes in the patient's condition; ④ Alleviating the effects of negative pressure: Under negative pressure, the reservoir provides a safe space for the fluid, avoiding direct negative pressure on the bodily fluids and reducing interference with the patient.

[0015] 3. The connector of this utility model has the following functions: ① Pipe connection: As a key component, the connector is responsible for connecting the drainage pipe to the pipe leading out of the patient's body, ensuring that the accumulated fluid in the body can be smoothly drained to the external fluid storage system; ② Easy installation and disassembly: The design of the connector makes the connection process simple, which is convenient for medical staff to install and disassemble, while ensuring that it will not fall off or loosen during use; ③ Multi-purpose function: Since there are two different types of connectors in the design, they can be replaced as needed, providing a wider range of adaptability and meeting the drainage system needs of different medical environments or patients. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the back structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the negative pressure shell of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the liquid storage bladder of this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the connector of this utility model.

[0021] In the picture:

[0022] 1. Drainage collection bag; 2. Negative pressure housing; 21. Sealing housing; 22. Suspension bracket; 23. Sealing strip; 24. Sealing cap; 25. Negative pressure pipe; 26. Adapter pipe; 3. Negative pressure suction structure; 4. Drainage pipe; 5. Liquid storage bladder; 51. Liquid storage space; 52. Inlet pipe; 53. Check valve; 54. Outlet pipe; 55. Sampling pipe; 6. Connector; 61. Support pipe; 62. Threaded interface; 63. Connecting rope; 64. Straight insertion port; 7. Flow regulating switch. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] As attached Figure 1 To be continued Figure 5 As shown.

[0025] This utility model provides a multi-purpose anti-backflow adjustable speed drainage bag, including a drainage collection bag 1, a negative pressure shell 2, a negative pressure suction structure 3, a drainage pipe 4, a liquid storage bladder 5, a connector 6, and a flow regulating switch 7. The drainage collection bag 1 is suspended inside the negative pressure shell 2, and the negative pressure suction structure 3 is installed on one side of the negative pressure shell 2. The drainage pipe 4 is fixedly installed on the interface at the upper end of the drainage collection bag 1. The liquid storage bladder 5 is fixedly installed inside the drainage pipe 4, and the connector 6 is fixedly installed at one end of the drainage pipe 4. The flow regulating switch 7 is installed on the outside of the drainage pipe 4.

[0026] The negative pressure housing 2 includes a sealing housing 21, a suspension bracket 22, a sealing strip 23, a sealing cover 24, a negative pressure pipe 25, and a connecting pipe 26. The suspension bracket 22 is fixedly installed at the bottom of the sealing housing 21, and a drainage collection bag 1 is suspended above it. The sealing strip 23 is slidably installed inside a slot on the outside of the sealing housing 21, and the inlet and outlet pipes of the drainage collection bag 1 are embedded inside the slot on the outside of the sealing housing 21. The sealing cover 24 is installed on the sealing housing 21 by a hinge. The negative pressure pipe 25 is fixedly installed on one side of the sealing housing 21, and the connecting pipe 26 is inserted into one end of the negative pressure pipe 25.

[0027] The reservoir 5 includes a reservoir space 51, an inlet pipe 52, a check valve 53, an outlet pipe 54, and a sampling pipe 55. The inlet pipe 52 and the outlet pipe 54 are fixedly installed at both ends of the reservoir space 51. The check valve 53 is fixedly installed at one end of the inlet pipe 52. The sampling pipe 55 is fixedly installed on the reservoir space 51.

[0028] The connector 6 includes a support pipe 61, a threaded interface 62, a connecting rope 63, and a straight insertion port 64. The support pipe 61 is fixedly installed at one end of the drainage pipe 4, and the connecting rope 63 is fixedly installed on the outside of the support pipe 61. The straight insertion port 64 is fixedly installed at one end of the connecting rope 63 and inserted into the inside of the threaded interface 62.

[0029] The sealing shell 21 inside the negative pressure shell 2 is a rectangular plastic shell, and the suspension bracket 22 is a set of columnar plastic bodies. The sealing strip 23 is a silicone block with an arc-shaped front end. The arc of the arc groove at the front end of the sealing strip 23 is consistent with the arc of the pipe extending outward from the drainage collection bag 1. The sealing cover 24 is a plastic cover, and a sealing strip is provided on the inner wall of the sealing cover 24. The sealing cover 24 can seal the sealing shell 21. The negative pressure pipe 25 is a plastic pipe, and the negative pressure pipe 25 can be directly connected to the negative pressure machine. The negative pressure pipe 25 can be connected to the negative pressure extraction structure 3 after inserting the adapter pipe 26.

[0030] The internal storage space 51 of the reservoir 5 is a capsule-shaped plastic bladder, and the inlet pipe 52 can only allow liquid to pass through in one direction via the check valve 53. The sampling pipe 55 is an outwardly extending pipe. The top of the sampling pipe 55 is sealed with a rubber stopper, and the rubber stopper at the top of the sampling pipe 55 allows the needle of the syringe to be inserted. A clip can be installed on the outside of the outlet pipe 54 inside the reservoir 5 as needed. At this time, the outlet pipe 54 is closed and cannot conduct liquid.

[0031] The straight insertion port 64 inside the connector 6 can be inserted into the threaded interface 62 to replace the interface at the top of the drainage pipe 4.

[0032] Compared with existing technologies, this equipment has the following significant advantages:

[0033] 1. Anti-backflow design: This device effectively prevents liquid backflow through the check valve 53 in the liquid storage bladder 5 and the sealing design of the connector 6, avoiding the backflow problem caused by unsealed connections or improper operation in traditional equipment, thus improving safety and hygiene.

[0034] 2. Adjustable speed function: The device is equipped with a flow rate adjustment switch 7, which can adjust the drainage speed as needed to adapt to the needs of different patients. This is more flexible than traditional drainage systems that can only rely on a fixed flow rate, and can provide personalized treatment plans.

[0035] 3. Versatile Design: Because connector 6 is designed with two interchangeable types, it can be replaced according to different types of drainage tubes in patients, ensuring the wide applicability of the device. This makes the device more adaptable to different medical environments.

[0036] 4. High Safety: The negative pressure suction structure 3 and the negative pressure shell 2 work together to create a stable negative pressure environment, effectively removing accumulated fluid from the patient during drainage. Simultaneously, the sealing design prevents external contamination. The device also features a leak-proof reservoir 5, reducing the risk of fluid leakage.

[0037] 5. Easy to maintain and clean: The connector 6 and other components are designed for ease of disassembly and cleaning, improving the durability and maintenance efficiency of the equipment. Connectors in traditional equipment are often difficult to clean or replace, potentially leading to contamination risks.

[0038] 6. Reduce patient discomfort: Due to the optimization of the negative pressure system, the device can provide gentle and stable drainage without causing excessive negative pressure impact on the patient, thus reducing the patient's pain and discomfort.

[0039] 7. Reusable: The negative pressure shell and other components are designed to be replaceable and cleanable. The device itself does not come into direct contact with the patient's bodily fluids and can be reused repeatedly if it meets the disinfection requirements. This not only reduces medical costs but also increases the value of the device.

[0040] In summary, this equipment, through its improved anti-backflow mechanism, adjustable speed function, and enhanced versatility design, offers higher safety, flexibility, applicability, and ease of maintenance compared to existing technologies.

[0041] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A multi-purpose anti-reflux adjustable speed drainage bag, characterized in that: The device includes a drainage collection bag (1), a negative pressure housing (2), a negative pressure suction structure (3), a drainage pipe (4), a reservoir (5), a connector (6), and a flow regulating switch (7), wherein: the drainage collection bag (1) is suspended inside the negative pressure housing (2), and the negative pressure suction structure (3) is installed on one side of the negative pressure housing (2); the drainage pipe (4) is fixedly installed on the interface at the upper end of the drainage collection bag (1); the reservoir (5) is fixedly installed inside the drainage pipe (4), and the connector (6) is fixedly installed at one end of the drainage pipe (4); the flow regulating switch (7) is installed on the outside of the drainage pipe (4).

2. A multipurpose anti-reflux adjustable speed drainage bag as claimed in claim 1, wherein: The negative pressure housing (2) includes a sealing housing (21), a suspension bracket (22), a sealing strip (23), a sealing cover (24), a negative pressure pipe (25), and a transfer pipe (26). The suspension bracket (22) is fixedly installed at the bottom of the sealing housing (21), and a drainage collection bag (1) is suspended above it. The sealing strip (23) is slidably installed inside the slot on the outside of the sealing housing (21), and the inlet and outlet pipes of the drainage collection bag (1) are embedded inside the slot on the outside of the sealing housing (21). The sealing cover (24) is installed on the sealing housing (21) by a hinge. The negative pressure pipe (25) is fixedly installed on one side of the sealing housing (21), and the transfer pipe (26) is inserted into one end of the negative pressure pipe (25).

3. The multipurpose anti-reflux adjustable speed drainage bag of claim 1, wherein: The reservoir (5) includes a reservoir space (51), an inlet pipe (52), a check valve (53), an outlet pipe (54), and a sampling pipe (55). The inlet pipe (52) and the outlet pipe (54) are fixedly installed at both ends of the reservoir space (51). The check valve (53) is fixedly installed at one end of the inlet pipe (52). The sampling pipe (55) is fixedly installed on the reservoir space (51).

4. The multipurpose anti-reflux adjustable rate drainage bag of claim 1, wherein: The connector (6) includes a support pipe (61), a threaded interface (62), a connecting rope (63), and a straight insertion port (64). The support pipe (61) is fixedly installed at one end of the drainage pipe (4), and the connecting rope (63) is fixedly installed on the outside of the support pipe (61). The straight insertion port (64) is fixedly installed at one end of the connecting rope (63) and inserted into the inside of the threaded interface (62).

5. The multipurpose anti-reflux adjustable rate drainage bag of claim 2, wherein: The sealing shell (21) inside the negative pressure shell (2) is a rectangular plastic shell, and the suspension bracket (22) is a set of columnar plastic bodies. The sealing strip (23) is a silicone block with an arc-shaped front end. The arc of the arc groove at the front end of the sealing strip (23) is consistent with the arc of the pipe extending outward from the drainage collection bag (1). The sealing cover (24) is a plastic cover, and a sealing strip is provided on the inner wall of the sealing cover (24). The sealing cover (24) can seal the sealing shell (21). The negative pressure pipe (25) is a plastic pipe, and the negative pressure pipe (25) can be directly connected to the negative pressure machine. The negative pressure pipe (25) can be connected to the negative pressure suction structure (3) after inserting the adapter pipe (26).

6. The multipurpose anti-reflux adjustable rate drainage bag of claim 3, wherein: The liquid storage space (51) inside the reservoir (5) is a capsule-shaped plastic bladder, and the inlet pipe (52) can only allow liquid to pass through in one direction through the check valve (53). The sampling pipe (55) is an outwardly extending pipe. The top of the sampling pipe (55) is sealed with a rubber stopper, and the rubber stopper at the top of the sampling pipe (55) allows the needle of the syringe to be inserted. A clip can be installed on the outside of the outlet pipe (54) inside the reservoir (5) as needed. At this time, the outlet pipe (54) is closed and cannot conduct liquid.

7. The multipurpose anti-reflux adjustable rate drainage bag of claim 4, wherein: The straight insertion port (64) inside the connector (6) can be inserted into the threaded interface (62) to replace the interface at the top of the drainage pipe (4).

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