Connecting structure of blood product conveying pipeline

By using a nut and sleeve connection structure, combined with reinforcement components, the problem of twisting and bending during the connection of blood product delivery pipelines was solved, achieving stable liquid flow rate and sealing performance.

CN223975682UActive Publication Date: 2026-03-06SHANGHAI RAAS BLOOD PRODUCTS CO LTD
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Patent Information

Application Number
CN202520892539.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-03-06
Estimated Expiration
2035-05-07

AI Technical Summary

Technical Problem

Traditional blood product delivery tubing is prone to twisting and bending during connection due to rotation, which affects the flow rate of the liquid.

Method used

The design employs a nut and sleeve connection structure, combined with reinforcement components, allowing the second connecting pipe to rotate relative to the first connecting pipe, preventing twisting and bending, and improving the sealing performance of the connection through a sealing sleeve.

Benefits of technology

It effectively prevents pipes from twisting or bending during movement, maintains a stable liquid flow rate, and improves the sealing of connections.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of blood products, and discloses a connecting structure of a conveying pipeline in the blood product production process, which comprises a first connecting pipe and a second connecting pipe, and further comprises a nut rotationally connected to the outer side of the first connecting pipe, and a sleeve fixedly connected to one end of the second connecting pipe; the fixing ring is fixedly connected to the outer side of the first connecting pipe, a limiting groove is formed in the inner wall of the fixing ring, and a limiting ring and a fixing sleeve are fixedly connected to the inner wall of the nut; the two pipelines are connected together through the nut and the sleeve, then the pipelines are reinforced through the reinforcing assembly, after the sleeve is installed in place, the sleeve is tightly attached to the fixing sleeve, the sleeve and the nut form a whole, the nut can rotate on the outer side of the first connecting pipe, and therefore the second connecting pipe can rotate relative to the first connecting pipe, and the pipeline can be conveniently connected. And the situation that the pipeline is twisted and bent in the moving process is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of blood products, specifically a connection structure for a blood product delivery pipeline. Background Technology

[0002] Blood product delivery pipelines are closed-loop pipeline systems used to safely transport blood product feed solutions such as albumin, immunoglobulins, and coagulation factors during the production of blood products, playing a vital role in blood product manufacturing scenarios.

[0003] In the production of blood products, connecting structures are needed to connect delivery pipelines to different equipment or appliances. Traditional pipeline connectors are usually snap-fit ​​or threaded connections, connecting pipelines to form a whole. However, during the transport of liquid, the pipelines will rotate, causing twisting and bending at the pipeline connection points, which affects the flow rate of the liquid inside the pipeline. Utility Model Content

[0004] The purpose of this invention is to provide a connection structure for a blood product delivery pipeline to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a connection structure for a blood product delivery pipeline, comprising a first connecting pipe and a second connecting pipe, and further comprising:

[0006] A nut is rotatably connected to the outside of the first connecting pipe, and a sleeve is fixedly connected to one end of the second connecting pipe;

[0007] A retaining ring is fixedly connected to the outside of the first connecting pipe. A limiting groove is formed on the inner wall of the retaining ring. The limiting ring and the retaining sleeve are fixedly connected to the inner wall of the nut.

[0008] Connectors are fixedly connected to both the first and second connecting pipes.

[0009] Preferably, the outer side of the sleeve is provided with a threaded groove that matches the nut.

[0010] Preferably, the inner diameter of the sleeve is slightly larger than the outer diameter of the first connecting pipe.

[0011] Preferably, a sealing sleeve is fixedly connected at the connection between the sleeve and the second connecting pipe.

[0012] Preferably, both the first connecting pipe and the second connecting pipe are provided with a reinforcing component on their outer sides, including a collar sleeved on the outer sides of the first connecting pipe and the second connecting pipe. One end of the collar is fixedly connected to a locking rod, and the other end is provided with a tapered groove.

[0013] Preferably, a disinfection component is provided on the outside of the connector, including a sealing cap that snaps onto the outside of the connector, the inside of the sealing cap being filled with disinfectant sponge, and a pull rod being fixedly installed on the outside of the sealing cap.

[0014] Preferably, the disinfectant sponge is provided with ethanol.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In this invention, two pipes are connected together using a nut and a sleeve, and then the pipes are reinforced using a reinforcing component. After the sleeve is installed in place, the sleeve and the fixing sleeve are tightly attached, and the sleeve and the nut form a whole. The nut can rotate on the outside of the first connecting pipe, so that the second connecting pipe can rotate relative to the first connecting pipe, preventing the pipe from twisting or bending when moving. Attached Figure Description

[0017] Figure 1 A schematic diagram of the connection structure of the blood product delivery pipeline provided by this utility model;

[0018] Figure 2 A schematic diagram of the first connecting pipe and nut structure provided by this utility model;

[0019] Figure 3 A schematic diagram of the sleeve structure provided by this utility model;

[0020] Figure 4 A schematic diagram of the fixing ring structure provided by this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the nut provided by this utility model;

[0022] Figure 6 A schematic diagram of the reinforcement component structure provided by this utility model;

[0023] Figure 7 A schematic diagram of the disinfection component provided by this utility model.

[0024] In the diagram: 1. First connecting pipe; 2. Nut; 3. Second connecting pipe; 4. Sleeve; 5. Fixing ring; 6. Limiting groove; 7. Limiting ring; 8. Fixing sleeve; 9. Connector; 10. Reinforcing component; 1001. Collar; 1002. Clamping rod; 1003. Conical groove; 11. Disinfection component; 1101. Sealing cap; 1102. Disinfecting sponge; 1103. Pull rod; 12. Sealing sleeve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-7 As shown, a connection structure for a blood product delivery pipeline includes a first connecting pipe 1 and a second connecting pipe 3, both made of medical-grade plastic. It also includes: a nut 2, rotatably connected to the outside of the first connecting pipe 1; a sleeve 4 fixedly connected to one end of the second connecting pipe 3, the sleeve 4 being inserted into the outside of the first connecting pipe 1, and its outer side threadedly connected to the nut 2; a fixing ring 5, fixedly connected to the outside of the first connecting pipe 1, with a limiting groove 6 formed in the inner wall of the fixing ring 5; a limiting ring 7 and a fixing sleeve 8 fixedly connected to the inner wall of the nut 2; the limiting ring 7 sliding within the limiting groove 6; and both the limiting ring 7 and the fixing sleeve 8 being fitted onto the outside of the first connecting pipe 1, with the limiting ring 7 and the fixing sleeve 8 located on opposite sides of the fixing ring 5; and a connector 9, fixedly connected to both the first connecting pipe 1 and the second connecting pipe 3; and a delivery pipeline fitted onto the connector 9 and communicating with the connecting pipe.

[0027] It should be noted that: the sleeve 4 on one side of the second connecting pipe 3 is inserted into the outside of the first connecting pipe 1, and then the sleeve 4 is rotated to connect the threaded connection to the inside of the nut 2, thereby connecting the first connecting pipe 1 and the second connecting pipe 3 together. After the sleeve 4 is installed in place, the sleeve 4 is tightly attached to the fixing sleeve 8, and the sleeve 4 and the nut 2 form a whole. The nut 2 can rotate on the outside of the first connecting pipe 1, so that the second connecting pipe 3 can rotate relative to the first connecting pipe 1, and the pipe will not be twisted or bent when it moves.

[0028] The outer side of the sleeve 4 is provided with a threaded groove that matches the nut 2, and the thread of the sleeve 4 is inside the nut 2; the inner diameter of the sleeve 4 is slightly larger than the outer diameter of the first connecting pipe 1, and the sleeve 4 can be fitted onto the outer side of the first connecting pipe 1; a sealing sleeve 12 is fixedly connected at the connection between the sleeve 4 and the second connecting pipe 3. After the sleeve 4 is installed in place, the sealing sleeve 12 is tightly attached to the opening of the nut 2, which can improve the sealing performance of the pipe connection.

[0029] Both the first connecting pipe 1 and the second connecting pipe 3 are provided with reinforcing components 10 on their outer sides, including a collar 1001 sleeved on the outer side of the first connecting pipe 1 and the second connecting pipe 3. One end of the collar 1001 is fixedly connected to a clamping rod 1002, and the other end has a tapered groove 1003. After the conveying pipe is sleeved on the connector 9, the collar 1001 is sleeved on the connection between the conveying pipe and the connector 9, and then... Figure 6As shown, the end of the collar 1001 with the tapered groove 1003 is snapped downwards onto the outside of the clamping rod 1002, thereby reinforcing the connection between the conveying pipe and the connector 9 and preventing the pipe from being pulled off.

[0030] A disinfection component 11 is provided on the outside of the connector 9, including a sealing cap 1101 that is snapped onto the outside of the connector 9. The inside of the sealing cap 1101 is filled with a disinfecting sponge 1102, and a pull rod 1103 is fixedly installed on the outside of the sealing cap 1101. The disinfecting sponge 1102 is filled with 70%-75% ethanol. When the connector 9 is not connected to the delivery pipeline, the sealing cap 1101 is snapped onto the outside of the connector 9, and the disinfecting sponge and ethanol solution inside the sealing cap 1101 are used to disinfect the connector 9, so as to avoid the connector 9 being contaminated by the outside.

[0031] Working principle: Insert the sleeve 4 on one side of the second connecting pipe 3 into the outside of the first connecting pipe 1, and then rotate the sleeve 4 to connect the threaded connection to the inside of the nut 2, thereby connecting the first connecting pipe 1 and the second connecting pipe 3 together. Then, put the two conveying pipes on the outside of the two connectors 9 respectively, and then use the reinforcing component 10 to reinforce the pipes. After the sleeve 4 is installed in place, the sleeve 4 is tightly attached to the fixing sleeve 8, and the sleeve 4 and the nut 2 form a whole. The nut 2 can rotate on the outside of the first connecting pipe 1, so that the second connecting pipe 3 can rotate relative to the first connecting pipe 1, and the pipe will not be twisted or bent when moving.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection structure of blood product delivery pipelines comprising a first connection pipe (1) and a second connection pipe (3), characterized in that, Also include: The nut (2) is rotatably connected to the outside of the first connecting pipe (1), and one end of the second connecting pipe (3) is fixedly connected with the sleeve (4); The fixed ring (5) is fixedly connected to the outside of the first connecting pipe (1), and the inner wall of the fixed ring (5) is provided with a limiting groove (6), and the inner wall of the nut (2) is fixedly connected with a limiting ring (7) and a fixed sleeve (8); The connecting head (9) is fixedly connected to the first connecting pipe (1) and the second connecting pipe (3).

2. A connection structure for blood product delivery tubing according to claim 1, characterized in that: The outer side of the sleeve (4) is provided with a threaded groove matched with the nut (2).

3. A connection structure for blood product delivery tubing according to claim 1, characterized in that: The inner diameter of the sleeve (4) is slightly larger than the outer diameter of the first connecting pipe (1).

4. The connection structure of a blood product delivery conduit according to claim 1, wherein: The connecting place of the sleeve (4) and the second connecting pipe (3) is fixedly connected with a sealing sleeve (12).

5. The connection structure of a blood product delivery conduit according to claim 1, wherein: The outer side of the first connecting pipe (1) and the second connecting pipe (3) is provided with a reinforcing assembly (10), which comprises a sleeve ring (1001) sleeved on the outer side of the first connecting pipe (1) and the second connecting pipe (3), one end of the sleeve ring (1001) is fixedly connected with a clamping rod (1002), and the other end is provided with a tapered groove (1003).

6. The connection structure of a blood product delivery conduit according to claim 1, wherein: The outer side of the connecting head (9) is provided with a disinfection assembly (11), which comprises a sealing cover (1101) clamped on the outer side of the connecting head (9), the inside of the sealing cover (1101) is filled with a disinfection sponge (1102), and the outer side of the sealing cover (1101) is fixedly installed with a pull rod (1103).

7. A connection structure for blood product delivery tubing according to claim 6, characterized in that: The disinfection sponge (1102) is provided with ethanol.