A rotary medical Luer sterile connector

Abstract

This utility model relates to the field of sterile connector technology, specifically a rotary medical Luer sterile connector, comprising a connector body, a connector portion at the top of the connector body, and a rotary locking adjustment ring assembly consisting of a hand-tightening ring, a rotating sleeve, and an upper protective ring rotatably fitted around the connector portion. This rotary locking adjustment ring assembly achieves smooth and precise rotational movement through cooperation with the spiral structure on the outer surface of the connector portion. Furthermore, a Luer interface is provided inside the lower end of the connector body, and a fixing sleeve is fitted around the end of the connector body located at the Luer interface. A lower protective ring with a movable relative position is connected to the lower end of the fixing sleeve, and a locking ring for engaging with the lower end of the fixing sleeve is provided at the top. This rotary medical Luer sterile connector effectively ensures the sterility of the connection point and reduces the risk of external contamination by providing adjustable protective rings at both ends.

Description

Technical Field

[0001] This utility model relates to the field of sterile connector technology, specifically a rotary medical Luer sterile connector. Background Technology

[0002] In modern medical practice, ensuring the sterility of connections between medical devices and tubing is crucial, especially in intravenous therapy, hemodialysis, and other medical procedures requiring precise control of fluid transport. Luer connectors, as a standard interface, are widely used in various medical devices, simplifying the connection process between different devices and improving operational safety and efficiency.

[0003] The existing Luer connector has a significant drawback: it is difficult to completely guarantee a sterile state during connection and disconnection. Since traditional connection methods require manual tightening or loosening, external bacteria may enter the connection area, especially with frequent plugging and unplugging, increasing the risk of infection. This poses a potential threat to medical safety. Utility Model Content

[0004] The purpose of this invention is to provide a rotary medical Luer sterile connector to solve the problem mentioned in the background art that current Luer connectors cannot completely guarantee a sterile state during connection and disconnection, and there is a risk of leakage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary medical Luer sterile connector, comprising a connector body, a connector portion at the top of the connector body, a rotary locking control ring assembly consisting of a hand-tightening ring, a rotating sleeve, and an upper protective ring rotatably fitted around the connector portion, the rotary locking control ring assembly cooperating with the spiral structure on the outer surface of the connector portion to achieve smooth and precise rotational movement, and a Luer interface is provided inside the lower end of the connector body, a fixing sleeve is fitted around the end of the connector body located at the Luer interface, the lower end of the fixing sleeve is connected to a lower protective ring that can be moved to a relative position, and the top end of the fixing sleeve is provided with a snap-fit ​​ring for engaging with the lower end of the connector body.

[0006] Preferably, the inner wall of the rotating sleeve is provided with an inner spiral pattern, and the outer wall of the joint is provided with a spiral groove that matches the inner spiral pattern structure on the inner wall of the rotating sleeve.

[0007] Preferably, the outer wall of the lower protective ring is provided with a plurality of raised guide strips, and the inner wall of the fixing sleeve is provided with a plurality of guide rails that cooperate with the raised guide strip structure.

[0008] Preferably, the inner wall of the snap ring is symmetrically provided with elastic snap members of an arc-shaped structure, and the outer wall of the lower end of the connector body is provided with an arc-shaped snap groove that matches the structure of the elastic snap members.

[0009] Preferably, both the upper and lower protective rings are made of lightweight and high-strength materials and are ring structures, and the inner walls of both the upper and lower protective rings are coated with an antibacterial coating.

[0010] Preferably, the hand-tightening ring, the rotating sleeve, and the upper protective ring are an integral structure, and the diameter of the hand-tightening ring is larger than the diameter of the rotating sleeve and the upper protective ring.

[0011] Compared with existing technologies, the advantages of this invention are as follows: This rotary medical Luer sterile connector effectively ensures the sterility of the connection by setting adjustable protective rings at both ends, reducing the risk of external contamination. Through the design of a rotary locking adjustment ring group consisting of a hand-tightening ring, a rotating sleeve, and an upper protective ring, and the coordinated use of a fixed sleeve and a lower protective ring, this rotary medical Luer sterile connector effectively protects the external threaded portion of the mating head and the Luer interface area, preventing the intrusion of external bacteria and ensuring the simplicity and stability of the connection operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a rotary medical Luer sterile connector according to the present invention; Figure 2 This is an exploded structural diagram of the upper protective ring, connector body, and lower protective ring of a rotary medical Luer sterile connector according to this utility model. Figure 3 This is a schematic diagram of the internal structure of the snap ring of a rotary medical sterile connector according to this utility model. Figure 4 This is a schematic diagram of the connection structure between the lower protective ring and the fixing sleeve of a rotary medical sterile connector according to this utility model.

[0013] In the diagram: 1. Connector body; 2. Connector part; 3. Tightening ring; 4. Rotating sleeve; 5. Upper protective ring; 6. Luer interface; 7. Fixing sleeve; 8. Lower protective ring; 9. Snap-fit ​​ring; 10. Guide rail; 11. Raised guide bar; 12. Elastic clip. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-4This utility model provides a technical solution: a rotary medical Luer sterile connector, including a connector body 1. The connector body 1 has an internal channel for ensuring smooth transmission of fluid or gas between the medical device and the infusion system. The top of the connector body 1 has a connector portion 2, which is integral with the connector body 1. The outer wall of the outer end of the connector portion 2 has an external thread structure for mating with the port of the medical device. A rotary locking control ring assembly consisting of a hand-tightening ring 3, a rotating sleeve 4, and an upper protective ring 5 is rotatably fitted around the outside of the connector portion 2. This rotary locking control ring assembly achieves smooth and precise rotational movement by cooperating with the spiral structure on the outer surface of the connector portion 2. The lower end of the connector body 1 has a Luer interface 6, and the inner wall of the Luer interface 6 has a... A sealing mechanism ensures tightness and stability when connected to the medical device port. A fixing sleeve 7 is fitted around one end of the connector body 1 at the Luer interface 6. A movable lower protective ring 8 is connected to the lower end of the fixing sleeve 7, and a locking ring 9 is provided at the top of the fixing sleeve 7 for engaging with the lower end of the connector body 1. During use, the connector body 1 can rotate smoothly and precisely through the interaction of the locking ring assembly and the spiral structure on the outer surface of the connector 2. This allows the hand-tightening ring 3 and the rotating sleeve 4 to rotate around the outside of the connector 2, thereby adjusting the upper protective ring 5 to a suitable position and effectively protecting the external threaded connection at the outer end of the connector head 2. Specifically, during the connection process, medical personnel first rotate the hand-tightening ring... 3. The rotating sleeve 4 moves along the spiral structure on the connector 2, causing the upper protective ring 5 to gradually cover and protect the external thread portion of the connector 2, preventing it from being directly exposed to the external environment during connection operations and reducing the risk of external bacterial contamination. Simultaneously, the fixing sleeve 7 is securely fitted onto the lower end of the connector body 1 via the snap ring 9, and the lower protective ring 8 is moved to a suitable position to further enhance the protection of the Luer interface 6 area. Overall, this design not only ensures the sterility of the connector during connection and disconnection but also prevents external contaminants from entering critical connection parts through the effective isolation of the upper and lower protective rings 5 ​​and 8, especially under frequent insertion and removal conditions, greatly reducing the risk of infection and solving the problems associated with traditional manual connection methods in the prior art. To address the issue of insufficient sterility, this design improves the safety and reliability of medical procedures. The inner wall of the rotating sleeve 4 features an internal spiral pattern, and the outer wall of the connector 2 has a spiral groove that matches the internal spiral pattern on the inner wall of the rotating sleeve 4. When medical personnel rotate the hand-tightening ring 3, the ring drives the rotating sleeve 4 to rotate smoothly and precisely along the spiral groove on the connector 2. This not only ensures a stable connection between the connector body 1 and external equipment but also guarantees ease and stability in the connection operation. Several raised guide strips 11 are welded and fixed around the outer wall of the lower protective ring 8, and several guide rails 10 that cooperate with the structure of the raised guide strips 11 are welded and fixed to the inner wall of the fixing sleeve 7. Rubber friction pads are provided on the inner wall of the guide rails 10.In this structure, the lower protective ring 8 can move precisely and stably through the cooperation of the raised guide strip 11 and the guide rail 10. The lower protective ring 8 will adjust its position according to actual needs to ensure that the Luer interface 6 is always in the best protective state. In addition, the rubber friction pad on the inner wall of the guide rail 10 increases the friction between the raised guide strip 11 and the guide rail 10, which not only ensures the stability of the lower protective ring 8 during movement, but also effectively prevents the lower protective ring 8 from shifting due to accidental collisions or vibrations. The inner wall of the snap ring 9 is symmetrically welded with elastic snap members 12 with an arc-shaped structure. The component 12 is made of a thin metal sheet, and the lower outer wall of the connector body 1 has an arc-shaped groove that matches the structure of the elastic retainer 12. When the retaining sleeve 7 slides down the connector body 1 to the designated position, the elastic retainer 12 automatically embeds into the arc-shaped groove on the lower outer wall of the connector body 1, ensuring that the retaining sleeve 7 is firmly fixed to the connector body 1. This not only provides a stable physical connection, preventing the retaining sleeve 7 from accidentally sliding or falling off during use, but also makes the installation and removal of the retaining sleeve 7 more convenient, as locking or releasing can be completed by applying appropriate pressure. Both the upper protective ring 5 and the lower protective ring 8 are annular structures made of lightweight and high-strength materials, and their inner walls are coated with an antibacterial coating. This structure not only ensures sufficient physical strength to protect the connection points but also reduces the overall weight, facilitating operation by medical personnel. Furthermore, the antibacterial coating on the inner walls of the upper and lower protective rings provides an additional antibacterial barrier when the protective rings come into contact with the connector 2 or the Luer interface 6 area, effectively inhibiting the growth and spread of bacteria and other microorganisms, further reducing the risk of infection, especially... Especially important in situations involving frequent insertion and removal, the hand-tightening ring 3, rotating sleeve 4, and upper protective ring 5 are integrated into a single structure. The diameter of the hand-tightening ring 3 is larger than the diameters of the rotating sleeve 4 and the upper protective ring 5. This structure ensures that the three components operate as a single unit, allowing the rotating sleeve 4 to rotate smoothly and precisely along the external thread of the connector 2 when the hand-tightening ring 3 is rotated, thus achieving connection or disconnection. The diameter design of the hand-tightening ring 3 provides medical personnel with a larger gripping area, facilitating the application of sufficient torque to complete the operation. It also increases the friction with the hand, improving operational stability and comfort.

[0016] Working Principle: When using this rotary medical Luer sterile connector, first align the Luer interface 6 of the connector body 1 with the medical device port for connection. Then, medical personnel start rotating the hand-tightening ring 3 to drive the rotating sleeve 4 to rotate smoothly and precisely along the spiral groove on the connector part 2. This allows the upper protective ring 5 to gradually cover and protect the external threaded part of the connector part 2. At the same time, the fixing sleeve 7 is securely fitted onto the lower end of the connector body 1 through the snap ring 9. The position of the lower protective ring 8 is adjusted according to actual needs. When adjusting the lower protective ring 8, it moves precisely and stably through the cooperation of the raised guide strip 11 and the guide rail 10 until the lower protective ring 8 is adjusted to the appropriate position, ensuring that the Luer interface 6 is always in the best protective state. Finally, through the above steps, a safe connection between the connector body 1 and the medical device port is achieved, while ensuring the sterility of the connection part, thus completing a series of tasks.

[0017] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A medical rotating Luer-sterile connector comprising a connector body (1), characterized in that: The connector body (1) has a connector part (2) at its top end. The connector part (2) is rotatably fitted with a screw-lock control ring group consisting of a hand-tightening ring (3), a rotating sleeve (4) and an upper protective ring (5). The screw-lock control ring group rotates smoothly and precisely by cooperating with the spiral structure on the outer surface of the connector part (2). The connector body (1) has a Luer interface (6) inside its lower end. The connector body (1) is fitted with a fixing sleeve (7) at one end of the Luer interface (6). The lower end of the fixing sleeve (7) is connected to a lower protective ring (8) that can be moved relative to the fixing sleeve (7). The top end of the fixing sleeve (7) is provided with a snap-fit ​​ring (9) for engaging with the lower end of the connector body (1).

2. A rotary medical luer-sterile connector according to claim 1, characterized in that: The inner wall of the rotating sleeve (4) is provided with an inner spiral pattern, and the outer wall of the joint (2) is provided with a spiral groove that matches the inner spiral pattern structure on the inner wall of the rotating sleeve (4).

3. A medical luer rotationally sterile connector according to claim 1, wherein: The outer wall of the lower protective ring (8) is surrounded by several raised guide strips (11), and the inner wall of the fixing sleeve (7) is provided with several guide rails (10) that cooperate with the structure of the raised guide strips (11). ​ 4. A rotary medical luer-sterile connector according to claim 1, wherein: The inner wall of the snap ring (9) is symmetrically provided with an elastic snap member (12) with an arc-shaped structure, and the outer wall of the lower end of the connector body (1) is provided with an arc-shaped slot that matches the structure of the elastic snap member (12).

5. A rotary medical luer-sterile connector according to claim 1, wherein: The upper protective ring (5) and the lower protective ring (8) are both made of lightweight and high-strength materials in a ring structure, and the inner walls of the upper protective ring (5) and the lower protective ring (8) are coated with an antibacterial coating.

6. A rotary medical luer-sterile connector according to claim 1, wherein: The hand-tightening ring (3), rotating sleeve (4) and upper protective ring (5) are an integral structure, and the diameter of the hand-tightening ring (3) is larger than the diameter of the rotating sleeve (4) and the upper protective ring (5).

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