Connector structure of negative pressure drainage device

By designing a connector structure for the negative pressure drainage device with snap-fit ​​grooves and sealing rings, the problem of difficulty in fixing the drainage bottle connector and the drainage tube connector is solved, achieving a stable connection and simplifying operation, reducing the risk of infection, and improving safety and efficiency in use.

CN223874185UActive Publication Date: 2026-02-06GUANGDONG PHARMA UNIV
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Patent Information

Application Number
CN202520233851.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2026-02-06
Estimated Expiration
2035-02-13

AI Technical Summary

Technical Problem

In existing negative pressure drainage devices, the drainage bottle connector and drainage tube connector are not easy to fix, which can easily loosen and cause leakage. Moreover, the replacement process is complicated and increases the risk of infection.

Method used

A negative pressure drainage device connector structure was designed, including a drainage bottle connector and a drainage tube connector. A stable connection is achieved through the cooperation of the snap-fit ​​groove and the snap-fit ​​part. It is equipped with a sealing ring and a switch valve to ensure sealing performance, and uses a sealing cap made of easy-to-clean antibacterial material to ensure a sterile environment.

Benefits of technology

This design achieves a secure connection between the drainage bottle connector and the drainage tube connector, reducing the risk of leakage, simplifying replacement procedures, lowering the risk of infection, and improving safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medical instruments, and provides a negative pressure drainage device connector structure which comprises a drainage bottle connector, a buckle position is arranged on the outer wall of the drainage bottle connector, the buckle position comprises a connecting portion and a buckle portion, the buckle portion is provided with an inclined face, and the inclined face is provided with a clamping groove. A step surface is formed between the buckling part and the connecting part, and a pressing groove is formed in the inner side of the buckling part; a pressing position is arranged on the outer wall of the drainage tube connector, a buckle groove is formed in the inner wall of the drainage tube connector and located on the inner side of the pressing position, and a switch valve is arranged at the end, away from the drainage bottle connector, of the pressing position; the buckling part can be clamped into the buckling groove, so that the drainage bottle joint and the drainage tube joint are connected in a buckling manner. The drainage bottle connector and the drainage tube connector can be stably connected and fixed, gauze wrapping and winding are not needed, and the drainage bottle connector and the drainage tube connector are not prone to loosening or even falling off to cause liquid leakage. When a medical worker replaces the drainage bottle, connector connection can be released by pressing with hands, vessel forceps are not needed, operation is easy, convenient and efficient, and the infection risk is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field more particularly, relate to a negative pressure drainage device joint structure. BACKGROUND

[0002] In prior art, after gynecological operation, disposable negative pressure drainage bottle is needed for patient, and the plastic joint of negative pressure drainage bottle is directly inserted into the drainage tube on the side of patient. In addition, the drainage bottle needs to be replaced every day to reduce the infection probability and maintain effective drainage.

[0003] Since the drainage tube does not have a joint, the plastic joint of the drainage bottle is not easy to fix after being directly inserted into the drainage tube, and needs to be wrapped and wound with gauze to increase fixation and prevent falling off. Even if the joint is fixed by relying on gauze wrapping, it is easy to cause liquid leakage due to loosening, increasing the risk of infection. The gauze wrapping fixation method is not only unstable, but also easy to loosen during replacement, affecting the drainage effect.

[0004] When medical staff perform the operation of replacing the drainage bottle, sterile operation is needed, and the body side drainage tube is usually clamped with a hemostat and sterilized. This direct plugging and sterilizing method is easy to expose the drainage interface to a contaminated environment and cause splashing of the drainage liquid, increasing the risk of infection of the patient.

[0005] The process of replacing the drainage bottle usually needs multiple steps, including clamping the drainage tube, sterilizing, disconnecting the old drainage bottle, connecting the new drainage bottle, etc. The operation is complex and cumbersome, increasing the replacement time. Long replacement time not only reduces work efficiency, but also increases the time of exposure of medical staff and patients to a contaminated environment, thereby increasing the risk of infection. TECHNICAL SOLUTION

[0006] The utility model aims to solve the above technical problems at least to some extent.

[0007] The utility model aims to provide a negative pressure drainage device joint structure which is simple and reasonable in structure, safe and convenient to use.

[0008] The utility model solves the technical problems by adopting the following technical scheme: a negative pressure drainage device joint structure comprises:

[0009] The drainage bottle joint is provided with a buckle position on the outer wall, the buckle position comprises a connecting part and a buckle part, the buckle part is provided with an inclined surface, a step surface is formed between the buckle part and the connecting part, and the inner side of the buckle position is provided with a pressing groove;

[0010] The drainage tube joint is provided with a pressing position on the outer wall, the inner wall of the drainage tube joint is provided with a buckle groove, the buckle groove is located on the inner side of the pressing position, and the end of the pressing position away from the drainage bottle joint is provided with a switch valve.

[0011] The buckle part can be buckled into the buckle groove, so that the drainage bottle connector and the drainage tube connector are buckled and connected.

[0012] When the drainage bottle connector needs to be connected with the drainage tube connector, the drainage bottle connector is inserted into the drainage tube connector, the inclined surface of the buckle part is pressed by the inner wall of the drainage tube connector, so that the buckle part is pressed towards the pressing groove, when the drainage bottle connector is continuously inserted into the buckle groove, the inclined surface of the buckle part rebounds without the pressing of the inner wall of the drainage tube connector, so that the buckle part is buckled into the buckle groove, the step surface abuts against the buckle groove, and then the drainage bottle connector and the drainage tube connector are connected and fixed, and after the connection and fixation, the switch valve can be opened for drainage.

[0013] When the drainage bottle connector needs to be disconnected from the drainage tube connector, the switch valve is first closed to terminate the drainage, and then the pressing position is pressed by hand, so that the buckle part is separated from the buckle groove and is pressed towards the pressing groove, at this time, the step surface no longer abuts against the buckle groove, and the drainage bottle connector can be pulled out of the drainage tube connector.

[0014] Therefore, the drainage bottle connector and the drainage tube connector can be stably connected and fixed, do not need to be wrapped with gauze, and are not easy to loosen or even fall off to cause liquid leakage. When medical staff perform the operation of replacing the drainage bottle, the connector connection can be disconnected by pressing with hands, without the use of a blood vessel clamp, so that the operation is simple, efficient and high, and the risk of infection is reduced.

[0015] In a preferred embodiment, the outer wall of the drainage bottle connector is provided with a first sealing groove, a first sealing ring is arranged in the first sealing groove, the first sealing groove is located at one end of the buckle position away from the drainage tube connector, and when the drainage bottle connector and the drainage tube connector are buckled and connected, the first sealing ring abuts against the inner wall of the end portion of the drainage tube connector to form a seal. The first sealing ring can seal the end portion of the drainage tube connector, prevent the drainage liquid from leaking out of the end portion of the drainage tube connector, and reduce the risk of pollution.

[0016] More preferably, the inner wall of the drainage tube connector is provided with a second sealing groove, a second sealing ring is arranged in the second sealing groove, the second sealing groove is located at one end of the buckle groove away from the drainage bottle connector, and when the drainage bottle connector and the drainage tube connector are buckled and connected, the second sealing ring abuts against the outer wall of the end portion of the drainage bottle connector to form a seal. The second sealing ring can seal the end portion of the drainage bottle connector, prevent the drainage liquid from entering the connection section between the drainage bottle connector and the drainage tube connector, and further prevent the drainage liquid from leaking out of the end portion of the drainage tube connector, thereby reducing the risk of pollution.

[0017] In a preferred embodiment, the two sides of the buckle groove are provided with pressing openings, and the pressing openings are formed into a pressing position. The pressing openings can facilitate the user to find the pressing position between them for pressing operation, and the pressing openings are beneficial to the pressing deformation of the pressing position, and the pressing deformation area is mainly limited in the pressing position between the pressing openings, avoiding the adjacent area from being widely depressed and deformed, and ensuring the long-term use.

[0018] In a preferred embodiment, the interface of the drainage bottle connector is provided with a first sealing cover, which can seal the interface of the drainage bottle connector. After the drainage bottle connector is disconnected from the drainage tube connector, the first sealing cover can be used to seal the interface of the drainage bottle connector, which can ensure the sterile environment of the drainage bottle connector and the drainage bottle, and facilitate subsequent use. The first sealing cover is preferably made of an antibacterial material that is easy to clean, which reduces bacterial growth. Preferably, the first sealing cover and the interface of the drainage bottle connector are sterilized to reduce the risk of bacterial infection and improve safety.

[0019] More preferably, a first connecting belt is arranged between the first sealing cover and the drainage bottle connector. The first connecting belt is used to connect the first sealing cover, which facilitates the flip fixing of the first sealing cover on the drainage bottle connector, so that it can be directly used when needed, avoiding the search of medical staff.

[0020] In a preferred embodiment, the interface of the drainage tube connector is provided with a second sealing cover, which can seal the interface of the drainage tube connector. After the drainage bottle connector is disconnected from the drainage tube connector, the second sealing cover can be used to seal the interface of the drainage tube connector, which can ensure the sterile environment of the drainage tube connector and the drainage tube, and facilitate subsequent use. The second sealing cover is preferably made of an antibacterial material that is easy to clean, which reduces bacterial growth. Preferably, the second sealing cover and the interface of the drainage tube connector are sterilized to reduce the risk of bacterial infection and improve safety.

[0021] More preferably, a second connecting belt is arranged between the second sealing cover and the drainage tube connector. The second connecting belt is used to connect the second sealing cover, which facilitates the flip fixing of the second sealing cover on the drainage tube connector, so that it can be directly used when needed, avoiding the search of medical staff.

[0022] The beneficial effects of the utility model are:

[0023] 1. The drainage bottle connector and the drainage tube connector can form a stable connection and fixation, without the need for wrapping with gauze, and are not easy to loosen or even fall off to cause liquid leakage. When medical staff perform the operation of replacing the drainage bottle, the connector connection can be disconnected by pressing with the hand, without the need for using a vascular clamp, which is simple and efficient in operation and reduces the risk of infection.

[0024] 2. The first sealing ring can seal the end of the drainage tube connector, prevent the drainage liquid from leaking out of the end of the drainage tube connector, and reduce the risk of pollution.

[0025] 3. The second sealing ring can seal the end of the drainage bottle connector, prevent the drainage liquid from entering the connection section between the drainage bottle connector and the drainage tube connector, and further prevent the drainage liquid from leaking from the end of the drainage tube connector, thereby reducing the risk of contamination.

[0026] 4. The pressing opening can facilitate the user to find the pressing position therebetween for pressing operation, and the pressing opening is beneficial to the pressing deformation of the pressing position, and the pressing deformation region is mainly limited to the pressing position between the pressing openings, thereby avoiding large-scale concave deformation of the adjacent region and ensuring long-term use.

[0027] 5. After the drainage bottle connector and the drainage tube connector are disconnected, the first sealing cover can be used to seal the interface of the drainage bottle connector, thereby ensuring the sterile environment of the drainage bottle connector and the drainage bottle and facilitating subsequent use. The first sealing cover is preferably made of an antibacterial material that is easy to clean, thereby reducing bacterial growth, and the interface of the first sealing cover and the drainage bottle connector is preferably sterilized, thereby reducing the risk of bacterial infection and improving the safety of use.

[0028] 6. The first connecting belt is used to connect the first sealing cover, thereby facilitating the flip-type fixation of the first sealing cover on the drainage bottle connector, so that the first sealing cover can be directly used when needed, thereby avoiding the search of medical staff.

[0029] 7. After the drainage bottle connector and the drainage tube connector are disconnected, the second sealing cover can be used to seal the interface of the drainage tube connector, thereby ensuring the sterile environment of the drainage tube connector and the drainage tube and facilitating subsequent use. The second sealing cover is preferably made of an antibacterial material that is easy to clean, thereby reducing bacterial growth, and the interface of the second sealing cover and the drainage tube connector is preferably sterilized, thereby reducing the risk of bacterial infection and improving the safety of use.

[0030] 8. The second connecting belt is used to connect the second sealing cover, thereby facilitating the flip-type fixation of the second sealing cover on the drainage tube connector, so that the second sealing cover can be directly used when needed, thereby avoiding the search of medical staff. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is an exploded structural schematic view of one embodiment of the present utility model.

[0032] Figure 2 is an installation structural schematic view of one embodiment of the present utility model.

[0033] Figure 3 is a partial cross-sectional structural schematic view of one embodiment of the present utility model.

[0034] Figure 4 is a three-dimensional structural schematic view of the drainage bottle connector in one embodiment of the present utility model.

[0035] Figure 5 is a perspective structural schematic view of the drainage bottle connector from another view in one embodiment of the utility model.

[0036] Figure 6 is a perspective structural schematic view of the drainage tube connector in one embodiment of the utility model.

[0037] Figure 7 is a perspective structural schematic view of the drainage tube connector from another view in one embodiment of the utility model.

[0038] The drawings are only for illustrative purposes and cannot be understood as limiting the utility model; in order to better illustrate the embodiments, some components in the drawings can be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted. DETAILED DESCRIPTION

[0039] The utility model will be further described in detail in combination with the drawings and specific embodiments.

[0040] As Figures 1 to 7 shown, the negative pressure drainage device connector structure 100 of the utility model, including: drainage bottle connector 200 and drainage tube connector 300.

[0041] Drainage bottle connector 200 is located at one end of drainage bottle tube (not shown) and is formed into an integral whole with drainage bottle tube, and the drainage bottle tube is connected with the drainage bottle (not shown). Drainage tube connector 300 is located at one end of drainage tube (not shown) and is formed into an integral whole with drainage tube. Drainage bottle connector 200 and drainage tube connector 300 both have inner layer (not shown) and outer layer, the inner layer is made of transparent soft rubber, which is used to form a seal inside the connector, so as to prevent drainage liquid from entering the outer layer. The inner layer soft rubber is preferably made of materials with high elasticity, wear resistance and corrosion resistance, such as fluororubber (FKM), nitrile rubber (NBR) or polyurethane (PU) and the like. These materials can adapt to the shape change of the connector and maintain good sealing effect. The outer layer is made of relatively hard hard rubber, and the material needs to have high elasticity and wear resistance, but more attention is paid to its adaptability to the external environment, such as weather resistance, aging resistance and the like.

[0042] The outer wall of the drainage bottle connector 200 is provided with a buckle position 201, the buckle position 201 comprises a connecting part 202 and a buckle part 203, the buckle part 203 is provided with an inclined surface 204, a step surface 205 is formed between the buckle part 203 and the connecting part 202, and the inner side of the buckle position 201 is provided with a pressing groove 206. The outer wall of the drainage tube connector 300 is provided with a pressing position 301, the inner wall of the drainage tube connector 300 is provided with a buckle groove 302, the buckle groove 302 is located on the inner side of the pressing position 301, and the pressing position 301 is provided with a switch valve 303 at the end away from the drainage bottle connector 200. The buckle part 203 can be buckled into the buckle groove 302, so that the drainage bottle connector 200 and the drainage tube connector 300 are buckled and connected.

[0043] When it is needed to connect the drainage bottle connector 200 and the drainage tube connector 300, the drainage bottle connector 200 is inserted into the drainage tube connector 300, the inclined surface 204 of the buckle part 203 is extruded by the inner wall of the drainage tube connector 300, so that the buckle part 203 is extruded to the pressing groove 206, when the drainage bottle connector 200 is continuously inserted into the buckle groove 302, the inclined surface 204 of the buckle part 203 rebounds without the extrusion of the inner wall of the drainage tube connector 300, so that the buckle part 203 is buckled into the buckle groove 302, the step surface 205 and the buckle groove 302 form abutment, and then the drainage bottle connector 200 and the drainage tube connector 300 are connected and fixed, after the connection and fixation, the switch valve 303 can be opened to perform drainage.

[0044] When it is needed to separate the drainage bottle connector 200 and the drainage tube connector 300, the switch valve 303 is closed to terminate drainage, then the pressing position 301 is pressed by hand, so that the buckle part 203 is separated from the buckle groove 302 and is extruded to the pressing groove 206, at this time, the step surface 205 and the buckle groove 302 no longer form abutment, and then the drainage bottle connector 200 can be pulled out of the drainage tube connector 300.

[0045] Therefore, the drainage bottle connector 200 and the drainage tube connector 300 can be connected and fixed stably, do not need to be wrapped and wound with gauze, and are not easy to loosen or even fall off to cause liquid leakage. When medical staff perform the operation of replacing the drainage bottle, the connector connection can be separated by pressing with hand, without using a blood vessel clamp, so that the operation is simple, efficient and high, and the risk of infection is reduced.

[0046] In the embodiment, the outer wall of the drainage bottle connector 200 is provided with a first sealing groove 207, and the first sealing groove 207 is provided with a first sealing ring 208. The first sealing groove 207 is located at one end of the buckle position 201 away from the drainage tube connector 300. When the drainage bottle connector 200 and the drainage tube connector 300 are buckled and connected, the first sealing ring 208 abuts against the inner wall of the end of the drainage tube connector 300 to form a seal. The first sealing ring 208 can seal the end of the drainage tube connector 300, prevent the drainage liquid from leaking out of the end of the drainage tube connector 300, and reduce the risk of pollution.

[0047] In the embodiment, the inner wall of the drainage tube connector 300 is provided with a second sealing groove 304, and the second sealing groove 304 is provided with a second sealing ring 305. The second sealing groove 304 is located at one end of the buckle groove 302 away from the drainage bottle connector 200. When the drainage bottle connector 200 and the drainage tube connector 300 are buckled and connected, the second sealing ring 305 abuts against the outer wall of the end of the drainage bottle connector 200 to form a seal. The second sealing ring 305 can seal the end of the drainage bottle connector 200, prevent the drainage liquid from entering the connection section between the drainage bottle connector 200 and the drainage tube connector 300, and further prevent the drainage liquid from leaking out of the end of the drainage tube connector 300, thereby reducing the risk of pollution.

[0048] In the embodiment, the buckle groove 302 is provided with pressing openings 306 on both sides, and the pressing position 301 is formed between the pressing openings 306. The pressing openings 306 can facilitate the user to find the pressing position 301 between them for pressing operation. At the same time, the pressing openings 306 are beneficial to the pressing deformation of the pressing position 301, and the pressing deformation area is mainly limited in the pressing position 301 between the pressing openings 306, avoiding large-scale depression deformation of the adjacent area, and ensuring the long-term use.

[0049] In the embodiment, the interface of the drainage bottle connector 200 is provided with a first sealing cover 209, which can seal the interface of the drainage bottle connector 200. After the drainage bottle connector 200 and the drainage tube connector 300 are disconnected, the first sealing cover 209 can be used to seal the interface of the drainage bottle connector 200, which can ensure the sterile environment of the drainage bottle connector 200 and the drainage bottle, and facilitate subsequent use. The first sealing cover 209 is preferably made of an antibacterial material that is easy to clean, which reduces bacterial growth. In addition, the interface of the first sealing cover 209 and the drainage bottle connector 200 is preferably sterilized to reduce the risk of bacterial infection and improve the safety of use.

[0050] In the embodiment, the first connecting band 210 is arranged between the first sealing cover 209 and the drainage bottle connector 200.

[0051] In the embodiment, the second sealing cover 307 is arranged on the interface of the drainage tube connector 300.

[0052] In the embodiment, the second connecting band 308 is arranged between the second sealing cover 307 and the drainage tube connector 300.

[0053] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For the ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not exhausted. Any modification, equivalent replacement and improvement, etc. made in the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A negative pressure wound drainage device connector structure, characterized in that, The utility model relates to a drainage bottle connector and drainage tube connector, which are connected through a buckle. The drainage bottle connector comprises an outer wall provided with a buckle position, the buckle position comprises a connecting part and a buckle part, the buckle part is provided with an inclined surface, the buckle part and the connecting part form a step surface, and the inner side of the buckle position is provided with a pressing groove. The drainage tube connector comprises an outer wall provided with a pressing position, an inner wall provided with a buckle groove, and an end of the pressing position away from the drainage bottle connector provided with an on-off valve. The buckle part can be buckled into the buckle groove, so that the drainage bottle connector and the drainage tube connector are buckled and connected.

2. The negative pressure wound drainage device junction structure of claim 1, wherein, The outer wall of the drainage bottle connector is provided with a first sealing groove, the first sealing groove is provided with a first sealing ring, the first sealing groove is located at an end of the buckle position away from the drainage tube connector, and the first sealing ring is in abutment with the end inner wall of the drainage tube connector to form a seal when the drainage bottle connector and the drainage tube connector are buckled and connected.

3. The negative pressure wound drainage device junction structure of claim 2, wherein, The inner wall of the drainage tube connector is provided with a second sealing groove, the second sealing groove is provided with a second sealing ring, the second sealing groove is located at an end of the buckle groove away from the drainage bottle connector, and the second sealing ring is in abutment with the end outer wall of the drainage bottle connector to form a seal when the drainage bottle connector and the drainage tube connector are buckled and connected.

4. The negative pressure wound drainage device junction structure of claim 1, wherein, Both sides of the buckle groove are provided with pressing openings, and the pressing openings form the pressing position.

5. The negative pressure wound drainage device connector structure according to any one of claims 1 to 4, characterized in that The interface of the drainage bottle connector is provided with a first sealing cover, which can seal the interface of the drainage bottle connector.

6. The negative pressure wound drainage device junction structure of claim 5, wherein, A first connecting belt is arranged between the first sealing cover and the drainage bottle connector.

7. The negative pressure wound drainage device connector structure according to any one of claims 1 to 4, characterized in that The interface of the drainage tube connector is provided with a second sealing cover, which can seal the interface of the drainage tube connector.

8. The negative pressure wound drainage device junction structure of claim 7, wherein, A second connecting belt is arranged between the second sealing cover and the drainage tube connector.