Connecting assembly of abdominal wall nutrition tube and enteral nutrition bag

Abstract

The invention relates to the technical field of medical pipeline connecting structures, in particular to a connecting assembly of an abdominal wall nutrition tube and an enteral nutrition bag, which comprises a female joint, a male joint and a sealing assembly. A first connecting rod is arranged at the end of the female connector, a second connecting rod is arranged at the end of the male connector, and flow channel holes are formed in the first connecting rod and the second connecting rod and used for establishing a liquid channel during connection. And the female lantern ring and the male lantern ring are mutually sleeved and positioned through the sleeving surface, so that the stability and the sealing property of the joint are ensured. The sealing assembly comprises a sliding sleeve ring, a valve block, a reset ring and a reset spring, the valve block automatically seals a flow channel under the action of the reset spring when not connected, the valve block is pushed by the first connecting rod and the second connecting rod to return in the connecting process, and automatic connection and disconnection of liquid are achieved. Second sealing magnetic rings are arranged on the surfaces of the valve blocks. The structure is simple, and dirt hiding and containing gaps are reduced; the quick-connection self-sealing function is achieved, and operation is easy and convenient; the sealing reliability is enhanced through magnetic attraction positioning, and the safety and convenience of medical use are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical pipeline connection structure, in particular to a connecting assembly of an abdominal wall nutrition tube and an enteral nutrition bag. BACKGROUND

[0002] At present, the abdominal wall nutrition tube and the enteral nutrition bag are widely used in clinical practice for long-term or short-term enteral nutrition support. The core component is the connecting assembly between the nutrition tube and the nutrition bag. The assembly not only needs to ensure smooth transmission of the nutrient solution, but also must have good sealing performance and convenient operation to meet the needs of high-frequency use in the medical environment.

[0003] The existing connecting assembly generally adopts mechanical buckling or sleeve connection structure. The typical scheme usually forms a passage by directly inserting the female connector and the male connector, and a simple sealing ring or valve structure is arranged inside to achieve liquid blocking. Although this kind of traditional design can complete the basic infusion function in actual application, it still has the following disadvantages: The traditional connecting assembly is often composed of multiple components at the connector. There are many connecting surfaces, sealing grooves and cavities, which are easy to cause the residual of the nutrient solution and form a dirt-collecting area. If the cleaning and disinfection are not thorough, it may cause bacterial growth and cross infection, which is difficult to meet the high requirements of clinical hygiene and safety.

[0004] The existing connector structure depends on manual pushing and screwing to complete the connection. When connecting or disconnecting the liquid path, the valve or sealing element needs to be additionally operated to open or close, which increases the use burden of medical staff. In some emergency operation scenarios, the cumbersome operation steps may cause nutrient solution leakage or delay infusion timing, which is not conducive to the efficiency of clinical application, and the connector cannot be automatically sealed after accidental falling, causing liquid leakage and bacterial contamination.

[0005] The sealing structure in the prior art mainly relies on the compression or ring friction force of the structure to maintain sealing and positioning. With the increase of the number of uses, the joint structure is easy to wear and age, resulting in a decrease in sealing effect. At the same time, the lack of auxiliary positioning mechanism makes the connector slightly loose during use, increasing the risk of liquid leakage.

[0006] In summary, the existing connecting assembly of the abdominal wall nutrition tube and the enteral nutrition bag generally has the problems of complex structure, difficult cleaning, lack of quick connection and self-sealing function, and unreliable sealing and positioning. Therefore, an improved connecting assembly with simple structure, quick connection, self-sealing and magnetic positioning function is needed to improve the safety and convenience of use. SUMMARY

[0007] The present application aims to solve one of the technical problems in the prior art or related art.

[0008] To this end, the technical scheme adopted by the present application is as follows: a connecting assembly of an abdominal wall nutrition tube and an enteral nutrition bag, comprising a female connector, a male connector and a sealing assembly, the end of the female connector and the end of the male connector are respectively provided with a connecting rod, and the inside of each is provided with a flow channel hole, which can form a liquid channel in the connected state; the female sleeve ring and the male sleeve ring are positioned by the sleeve surface, which is used to ensure the stability of the connection; the sealing assembly comprises a sliding sleeve ring, a valve block, a reset ring and a reset spring, the valve block is automatically closed in the unconnected state, and is pushed open by the connecting rod in the connection process, so that the automatic on-off of the liquid is realized.

[0009] In a preferred example, the female connector comprises a first connecting rod, and the male connector comprises a second connecting rod, both of which have the same structure and size, and are in the form of a semi-cylindrical structure. When the female connector and the male connector are connected, the flow channel holes of the first connecting rod and the second connecting rod are connected to each other, and specifically, this structure ensures the accurate connection of the liquid channel and the smooth delivery of the fluid.

[0010] In a preferred example, the first connecting rod and the second connecting rod are provided with a first sealing magnetic ring on the surface, and the magnetic poles are arranged oppositely; the valve block is provided with a second sealing magnetic ring on the surface, and the magnetic poles are arranged oppositely with the first sealing magnetic ring. Specifically, the connection positioning and the sliding guiding of the valve block are realized by magnetic attraction, which improves the sealing and stability during the connection of the liquid channel.

[0011] In a preferred example, the first sealing magnetic ring and the second sealing magnetic ring have the same size and are in the form of a ring-shaped sealing ring structure made of magnetic rubber. Specifically, this design has the effects of flexible sealing and magnetic positioning, which not only ensures that the liquid does not leak, but also realizes the stable adsorption positioning of the valve block.

[0012] In a preferred example, the inner side of the female sleeve ring and the inner side of the male sleeve ring are provided with a limiting sliding groove, the inner side of the valve block is provided with a limiting structure, and the surface of the sliding sleeve ring is provided with a convex edge and located inside the limiting sliding groove. Specifically, by the cooperation of the limiting sliding groove and the convex edge, the sliding sleeve ring and the valve block are guided to slide stably in a straight line direction, which avoids deviation and improves the guiding accuracy during the connection process.

[0013] In a preferred example, the valve block is in the form of a semi-cylindrical structure, and the two ends of the reset spring are respectively in abutment with the surface of the connecting rod and the inner side of the sliding sleeve ring. Specifically, when the connectors are separated, the reset spring automatically pushes the valve block to the closed state; when the connectors are connected, the connecting rod pushes the valve block to open the liquid channel against the elastic force, so as to realize the automatic on-off of the liquid.

[0014] In a preferred example, the reset ring comprises a ring piece and a plurality of elastic top pieces formed integrally. Specifically, the elastic top pieces are made of elastic metal sheets, which can provide elastic support and positioning during the reset process of the sliding sleeve ring, thereby enhancing the reset effect and the service life of the connector.

[0015] In a preferred example, the sleeve surface of the female sleeve ring and the outer surface of the male sleeve ring are roughened, so that friction is generated when the two are connected, ensuring that the female sleeve ring and the male sleeve ring are tightly connected, and the sealing performance and anti-loosening performance of the joint are further improved.

[0016] In a preferred example, the female joint, the male joint, the first connecting rod, the female sleeve ring, the second connecting rod and the male sleeve ring are made of medical-grade rubber material, which has good biocompatibility, corrosion resistance and flexible sealing performance, and can ensure long-term safe use of the product in a medical environment.

[0017] In summary, the connecting assembly of the abdominal wall nutrient tube and the enteral nutrition bag has the advantages that the simple structure design avoids dirt accumulation, the quick connection and self-sealing integrated structure improves the operation convenience, and the magnetic sealing structure enhances the sealing reliability and positioning accuracy of the liquid path, thereby improving the safety, stability and operation efficiency during clinical use.

[0018] The present application has the following advantages: 1. The compact structure design of the female joint, the male joint and the sealing assembly is adopted, the internal channel is reasonably matched by the valve block, the sliding sleeve ring and the reset ring, the liquid residue and dirt accumulation problem caused by the complex parts and too many seams of the traditional joint is avoided, the overall structure surface is smooth, the joint interface is simplified, the cleaning and disinfection convenience are significantly improved, and the sanitary safety requirements of the medical environment are met.

[0019] 2. The sleeve connection of the female sleeve ring and the male sleeve ring, and the guiding effect of the anti-fooling protruding pin on the sliding sleeve ring and the positioning groove are used to realize quick alignment and stable connection. During the connection process, the first connecting rod and the second connecting rod push the valve block to automatically open the liquid path, and when separated, the valve block is automatically closed under the action of the reset spring, forming a quick connection and self-sealing integrated function. The structure can realize the opening and closing of the liquid path without additional operation, and the clinical operation efficiency is significantly improved.

[0020] 3. The first sealing magnetic ring and the second sealing magnetic ring are arranged between the first connecting rod, the second connecting rod and the valve block, and the positioning and sealing during the liquid path connection and closing process are realized by using magnetic attraction. The magnetic attraction not only ensures the stability of the valve block during sliding, but also enhances the sealing reliability after connection, prevents liquid leakage, improves the safety and reliability of the overall device during use, and can be self-sealed after accidental disconnection to avoid external pollution. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is an overall structure schematic diagram of an embodiment of the present application; Figure 2A cross-sectional structure schematic diagram of an embodiment of the present application in a connected state; Figure 3 A cross-sectional structure schematic diagram of an embodiment of the present application in a connected state; Figure 4 A cross-sectional structure schematic diagram of an embodiment of the present application in a connected state; Figure 5 A cross-sectional structure schematic diagram of an embodiment of the present application in a connected state; Figure 6 A cross-sectional structure schematic diagram of an embodiment of the present application in a connected state; Figure 7 A cross-sectional structure schematic diagram of an embodiment of the present application in a connected state; Figure 8 A cross-sectional structure schematic diagram of an embodiment of the present application in a connected state; Figure 9 A cross-sectional structure schematic diagram of an embodiment of the present application in a connected state; Figure 10 A cross-sectional structure schematic diagram of an embodiment of the present application in a connected state.

[0022] Reference signs: 100, female joint; 110, first joint rod; 120, female collar; 121, collar surface; 200, male joint; 210, second joint rod; 220, male collar; 211, flow channel hole; 212, first sealing magnetic ring; 300, sealing assembly; 310, sliding collar; 320, valve block; 330, reset ring; 340, reset spring; 311, foolproof protruding pin; 312, positioning groove; 321, ring groove; 322, second sealing magnetic ring; 331, ring piece; 332, elastic top piece. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear and obvious, the present application is further described in detail below in combination with specific embodiments and with reference to the drawings. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] It is to be understood that the description is only exemplary and is not intended to limit the scope of the present application.

[0025] Some embodiments of the present application provide a connection assembly of an abdominal wall nutrition tube and an enteral nutrition bag.

[0026] In combination with Figures 1-10 As shown in the drawings, the present application provides a connection assembly of an abdominal wall nutrition tube and an enteral nutrition bag, which comprises a female joint 100, a male joint 200 and a sealing assembly 300.

[0027] The first connecting rod 110 is arranged at the end of the female connector 100, and the second connecting rod 210 is arranged at the end of the male connector 200. The flow channel holes 221 are arranged in the interiors of the first connecting rod 110 and the second connecting rod 210, and the flow channel holes 221 are in communication with the internal flow channels of the female connector 100 and the male connector 200. The outer periphery of the port of the flow channel hole 221 is provided with a sealing flange 222. The female sleeve ring 120 and the male sleeve ring 220 are fixedly connected to the ends of the female connector 100 and the male connector 200, respectively, to provide positioning for the sliding of the sealing assembly 300. The inner side of the female sleeve ring 120 is provided with a sleeve surface 121 matched with the outer surface of the male sleeve ring 220, to realize stable sleeving between the female sleeve ring 120 and the male sleeve ring 220.

[0028] The sealing assembly 300 comprises a sliding sleeve ring 310, a valve block 320, and a reset ring 330 and a reset spring 340 arranged at one end of the sliding sleeve ring 310 and the valve block 320, respectively. The valve block 320 is in sliding abutment with the surfaces of the first connecting rod 110 and the second connecting rod 210, and the valve block 320 is sleeved on the inner side of the sliding sleeve ring 310. The two sliding sleeve rings 310 are sleeved on the inner sides of the female sleeve ring 120 and the male sleeve ring 220, respectively. The surface of the valve block 320 is provided with a ring groove 321, and the inner side of the ring groove 321 is embedded with a second sealing magnetic ring 322. The second sealing magnetic ring 322 is matched with the first sealing magnetic ring 212 on the surface of the first connecting rod 110 and the second connecting rod 210 through magnetic attraction, to provide sealing positioning function in the closed and opened states.

[0029] In a preferred embodiment, the female connector 100, the first connecting rod 110, the male connector 200, and the second connecting rod 210 have the same structure and size, and the first connecting rod 110 and the second connecting rod 210 are half-cylindrical structures. When the female connector 100 is connected with the male connector 200, the surface flow channel holes 211 of the first connecting rod 110 and the second connecting rod 210 can be accurately aligned and connected with each other, to realize the through connection of the liquid path.

[0030] In another embodiment, the surfaces of the first connecting rod 110 and the second connecting rod 210 are provided with the first sealing magnetic rings 212, and the magnetic poles of the first sealing magnetic rings 212 are oppositely arranged. When the female connector 100 is connected with the male connector 200, the two first sealing magnetic rings 212 are connected through magnetic attraction, to realize joint positioning. Meanwhile, the magnetic poles of the first sealing magnetic ring 212 and the second sealing magnetic ring 322 on the surface of the valve block 320 are oppositely arranged, so that the valve block 320 can be magnetically guided and positioned when sliding on the surfaces of the first connecting rod 110 and the second connecting rod 210, to further improve the sealing and stability of the liquid path connection.

[0031] In another embodiment, the first sealing magnetic ring 212 and the second sealing magnetic ring 322 are ring-shaped sealing ring structures with the same specifications, and are made of magnetic rubber material. The magnetic structure has the functions of flexible sealing and magnetic positioning, to ensure the reliable opening and closing of the valve block 320 during the liquid path connection.

[0032] In a preferred embodiment, the inner side of the female sleeve ring 120 and the male sleeve ring 220 are provided with a limiting sliding groove for guiding the sliding of the sliding sleeve ring 310. The inner side of the valve block 320 is provided with a limiting structure, and the surface of the sliding sleeve ring 310 is provided with a convex edge located in the limiting sliding groove, so as to ensure that the sliding sleeve ring 310 keeps linear sliding during the docking of the female connector 100 and the male connector 200. One side of the sliding sleeve ring 310 is elastically supported by the reset ring 330, so as to realize the automatic reset function.

[0033] In another embodiment, the valve block 320 is in a semi-cylindrical shape, and the reset spring 340 is in sliding abutment with the surface of the first connecting rod 110, the surface of the second connecting rod 210 and the inner side of the sliding sleeve ring 310, respectively. The valve block 320 keeps a closed state under the action of the reset spring 340, and when the female connector 100 and the male connector 200 are connected, the valve block 320 can slide back against the elastic force under the pushing of the connecting rod, so as to realize the opening of the liquid path.

[0034] In another embodiment, the reset ring 330 includes a ring piece 331 and a plurality of elastic top pieces 332 located on the surface of the ring piece 331. The ring piece 331 and the elastic top piece 332 are an integral molding structure, and the elastic top piece 332 is made of an elastic metal sheet, which can provide elastic support and positioning effect during the reset of the sliding sleeve ring 310.

[0035] In a preferred embodiment, the inner side of the sleeve joint surface 121 of the female sleeve ring 120 and the outer side surface of the male sleeve ring 220 are processed into a rough surface structure. When the female connector 100 and the male connector 200 are connected, the outer periphery of the male sleeve ring 220 is tightly matched with the inner side of the sleeve joint surface 121, which further enhances the friction and sealing performance of the connecting structure, and prevents loosening.

[0036] In another embodiment, the female connector 100, the male connector 200 and the first connecting rod 110, the female sleeve ring 120, the second connecting rod 210, the male sleeve ring 220 on the surface thereof are all made of a medical-grade rubber material. The material has good biocompatibility and sealing performance, and meets the safety requirements for medical use.

[0037] The working principle and use process of the present application are as follows: The connecting assembly of the abdominal wall nutrient tube and the enteral nutrition bag of the present application realizes the establishment of the nutrient liquid path through the docking of the female connector 100 and the male connector 200. One end of the female connector 100 is provided with the first connecting rod 110, and one end of the male connector 200 is provided with the second connecting rod 210. When they are docked, they are connected through the flow channel hole 221, so that the liquid can flow smoothly. The female sleeve ring 120 and the male sleeve ring 220 are mutually sleeved and tightly matched and positioned, so as to ensure the stability and sealing performance of the connection.

[0038] Inside the sealing assembly 300, the sleeve ring 310 is sleeved on the inner side of the female sleeve ring 120 and the male sleeve ring 220, the valve block 320 is slidingly installed on the inner side of the sleeve ring 310, and is elastically supported on one side by the reset spring 340, and the end of the sleeve ring 310 is reset and positioned by the reset ring 330. When the female connector 100 and the male connector 200 are not connected, the valve block 320 is automatically in the closed position under the action of the reset spring 340, and the surface second sealing magnetic ring 322 is in contact with the surface first sealing magnetic ring 212 of the first connecting rod 110 and the second connecting rod 210 to achieve sealing, thereby blocking the flow of liquid and preventing the liquid in the abdominal wall nutrition tube and the enteral nutrition bag from leaking.

[0039] When the female connector 100 and the male connector 200 are connected, the first connecting rod 110 and the second connecting rod 210 slide and push the valve block 320 to slide, so that the flow passage hole 221 is penetrated, and the nutrition liquid can flow smoothly. In this process, the first sealing magnetic ring 212 and the second sealing magnetic ring 322 are positioned by mutual adsorption, which not only plays a sealing role, but also ensures the sliding positioning effect of the valve block 320, thereby preventing liquid leakage.

[0040] Use process In a preferred embodiment of the present application, the female connector 100 and the male connector 200 are connected in sequence through the following steps to realize the penetration of the liquid path: Initial state: when the female connector 100 and the male connector 200 are separated, the two sleeve rings 310 are respectively sleeved on the inner sides of the female sleeve ring 120 and the male sleeve ring 220, and the sleeve ring 310 and the valve block 320 are respectively kept in the extended state under the elastic action of the reset ring 330 and the reset spring 340. At this time, the valve block 320 is in the closed position under the support of the reset spring 340, that is, the surface second sealing magnetic ring 322 is in contact with the surface first sealing magnetic ring 212 of the first connecting rod 110 and the second connecting rod 210, and the first connecting rod 110 and the second connecting rod 210 do not establish a fluid passage, thereby ensuring that the nutrition liquid does not leak.

[0041] Sleeve ring alignment: when the female connector 100 and the male connector 200 begin to approach, the front ends of the two sleeve rings 310 first contact, and the anti-fool protruding pin 311 on one side of the sleeve ring 310 of the female connector 100 gradually aligns with the positioning groove 312 on one side of the sleeve ring 310 of the male connector 200. Through the mutual cooperation of the anti-fool protruding pin 311 and the positioning groove 312, the direction consistency of the two sleeve rings 310 during connection is ensured, and misalignment connection is avoided. At the same time of connection, the female sleeve ring 120 is sleeved on the outer periphery of the male sleeve ring 220; Synchronous back-off: As the female connector 100 and the male connector 200 continue to approach each other, the front ends of the two sleeve rings 310 abut each other and move synchronously back off, and simultaneously move back to the respective inner side under the action of contact pressure. Due to the constraint of the limiting sliding groove, the two sleeve rings 310 maintain stable linear sliding and realize synchronous back-off action.

[0042] Valve block opening process: While the sleeve ring 310 is back off, the front end of the first connecting rod 110 at the female connector 100 end gradually contacts the surface of the valve block 320 on the surface of the male connector 200, and pushes it to slide inwardly against the elastic force of the return spring 340; at the same time, the front end of the second connecting rod 210 at the male connector 200 end also gradually contacts the surface of the valve block 320 on the surface of the female connector 100, and synchronously pushes it to slide inwardly. In this way, the two valve blocks 320 are synchronously back off along the inner wall direction of the sleeve ring 310 under the joint action of the first connecting rod 110 and the second connecting rod 210, so that the ring groove 321 and the sealing magnetic ring 322 located on the valve block 320 are gradually separated from the closed position.

[0043] Flow channel connection: With the complete back-off of the valve block 320, the front ends of the first connecting rod 110 and the second connecting rod 210 gradually approach and finally adhere, so that the flow channel holes 211 on their surfaces are accurately connected and communicated. At this time, a complete liquid flow channel is formed between the female connector 100 and the male connector 200, and the nutrient solution can flow smoothly from the female connector 100 end into the male connector 200 end, realizing the liquid delivery between the abdominal wall nutrient tube and the enteral nutrition bag.

[0044] Stable sealing and positioning: In the flow channel connection state, the first sealing magnetic ring 212 and the second sealing magnetic ring 322 are mutually adsorbed, which ensures the stable positioning of the valve block 320 in the open position; at the same time, the sleeve surface 121 of the female sleeve ring 120 and the outer surface of the male sleeve ring 220 are tightly adhered, which enhances the sealing performance of the overall structure.

[0045] Completion state: Finally, the flow channel holes 211 of the first connecting rod 110 and the second connecting rod 210 are completely connected, forming a stable liquid path channel. Even after the external force is removed, the sleeve surface 121 of the female sleeve ring 120 and the outer surface of the male sleeve ring 220 are tightly adhered, and the magnetic attraction effect of the sealing structure and the sleeve ring cooperation jointly ensure that the female connector 100 and the male connector 200 remain stable liquid connection in the docking state.

[0046] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "certain embodiments", and the like are intended to indicate that the described implementation, feature, structure, material or characteristic is included in at least one embodiment or example of the application. In the description of the specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in an appropriate manner.

[0047] Although embodiments of the present application have been shown and described, it would be appreciated by those skilled in the art that changes, modifications, alternatives and variations to these embodiments could be made without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A connecting assembly between an abdominal wall feeding tube and an enteral feeding bag, characterized in that, The utility model relates to a kind of quick couplings, including: Female joint (100), male joint (200) and sealing assembly (300), the end of female joint (100) and male joint (200) is respectively provided with first connecting rod (110) and second connecting rod (210), the first connecting rod (110) and female sleeve ring (120) inside are all provided with flow channel hole (221), for with female joint (100) and male joint (200) inside flow channel communication, and the port of the flow channel hole (221) is provided with sealing flange (222); The end of female joint (100) and male joint (200) is respectively fixedly connected with female sleeve ring (120) and male sleeve ring (220), for the sliding of sealing assembly (300) is positioned, the inside of female sleeve ring (120) is provided with sleeve joint surface (121) that is matched with the outer surface of male sleeve ring (220) and is sleeved, The sealing assembly (300) includes sleeve ring (310), valve block (320) and respectively located reset ring (330) and reset spring (340) at one end of sleeve ring (310) and valve block (320), the side of valve block (320) is slidably contacted with the surface of first connecting rod (110) and second connecting rod (210), and valve block (320) is sleeved in the inside of sleeve ring (310), two sleeve rings (310) are respectively slidably sleeved in the inside of female sleeve ring (120) and male sleeve ring (220), the surface of valve block (320) is provided with annular groove (321), and second sealing magnetic ring (322) is embedded and installed in the inside of annular groove (321).

2. A connection assembly for a peritoneal dialysis catheter and an enteral feeding bag according to claim 1, wherein Female joint (100), first connecting rod (110) and male joint (200), second connecting rod (210) are same in structure and size, and the first connecting rod (110) and the second connecting rod (210) are both semicylindrical structure, and the surface flow channel hole (211) of the first connecting rod (110) and the second connecting rod (210) is mutually connected in the butt joint state of female joint (100) and male joint (200) to carry out liquid path connection.

3. The connection assembly of claim 1, wherein, The magnetic poles of first sealing magnetic ring (212) on the surface of the first connecting rod (110) and the second connecting rod (210) are oppositely arranged, for the mutual magnetic attraction positioning of two first sealing magnetic rings (212) in the engagement state of the first connecting rod (110) and the second connecting rod (210);The magnetic poles of first sealing magnetic ring (212) and second sealing magnetic ring (322) on the surface of valve block (320) are oppositely arranged, for the movement positioning of valve block (320) in the sliding movement on the surface of the first connecting rod (110) and the second connecting rod (210).

4. A connection assembly for a peritoneal dialysis catheter and an enteral feeding bag according to claim 3, wherein The first sealing magnetic ring (212) and the second sealing magnetic ring (322) are same in size and specification, and are both annular sealing ring structure of magnetic rubber material member.

5. The connection assembly of claim 1, wherein, The inside of female sleeve ring (120) and male sleeve ring (220) is provided with limiting sliding groove for guiding the sliding of sleeve ring (310), and the inside of valve block (320) is provided with limiting structure for guiding the sliding of valve block (320), the surface of sleeve ring (310) is provided with convex edge inside limiting sliding groove, and one side of sleeve ring (310) is elastically supported by reset ring (330).

6. The connection assembly of claim 1, wherein, The valve block (320) is semi-cylindrical, and the reset spring (340) is in sliding abutment with the surface of the first connecting rod (110) or the second connecting rod (210) and the inner side of the sliding sleeve ring (310) on both sides of the valve block (320), and one side of the valve block (320) is elastically supported by the reset spring (340).

7. The assembly of claim 1, wherein the tube is a feeding tube. The reset ring (330) comprises a ring sheet (331) and a plurality of elastic top sheets (332) on the surface of the ring sheet (331), the ring sheet (331) and the elastic top sheet (332) are an integral structure, and the elastic top sheet (332) is an elastic metal sheet.

8. The connection assembly of claim 1, wherein, The inner side of the sleeve surface (121) and the outer side of the male sleeve ring (220) are rough, and in the jointed state of the female connector (100) and the male connector (200), the outer periphery of the male sleeve ring (220) is tightly matched with the inner side of the sleeve surface (121).

9. The connection assembly of claim 1, wherein, The female connector (100), the male connector (200), and the first connecting rod (110), the female sleeve ring (120), the second connecting rod (210), and the male sleeve ring (220) on the surface thereof are all members made of medical-grade rubber material.

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