A disposable pre-filled heparin sodium saline sealing assembly

By designing a disposable pre-filled heparin sodium saline sealing assembly and utilizing the rotational operation of the Luer connector to achieve needle-free injection, the problems of foreign matter contamination and time waste in the preparation of heparin sodium saline sealing solution are solved, the risk of catheter-related bloodstream infection is reduced, and the preparation efficiency is improved.

CN224585131UActive Publication Date: 2026-08-04ZHONGSHAN HOSPITAL AFFILIATED TO FUDAN UNIV XIAMEN HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN HOSPITAL AFFILIATED TO FUDAN UNIV XIAMEN HOSPITAL
Filing Date
2025-03-24
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In the existing technology, the preparation process of heparin sodium saline sealing solution involves puncture, which increases the probability of foreign bodies and particles being mixed in, leading to the risk of catheter-related bloodstream infections, and the preparation time is relatively long.

Method used

A disposable pre-filled heparin sodium saline solution sealing assembly is designed, which uses a combination of a syringe, a packaged vial, a Luer conical connector, and a Luer locking connector. The channel is opened by rotating the Luer connector, enabling needle-free injection of the drug into the packaged vial and avoiding puncture.

Benefits of technology

It reduces the probability of foreign objects and particles being introduced, decreases the occurrence of catheter-related bloodstream infections, and saves preparation time.

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Abstract

This utility model discloses a disposable pre-filled heparin sodium saline sealing assembly, comprising a syringe, a packaged vial, a Luer conical connector, and a Luer locking connector. The syringe head is mounted to the Luer locking connector, and the syringe contains sterile saline. The vial opening is mounted to the Luer conical connector. The Luer conical connector has a rotating mounting cap and a conical head. The mounting cap is screwed onto the vial opening, and the mounting cap and conical head have a communicating channel. The mounting cap has an opening / closing gate within the channel for opening and closing the channel. The outer wall of the conical head has a threaded structure. The Luer locking connector has a locking cap with an internal threaded structure, which is threaded onto the conical head. The locking cap drives the conical head to rotate on the mounting cap, thereby opening and closing the opening / closing gate. The sterile saline from the syringe is injected into the packaged vial along the channel. This utility model can reduce the occurrence of catheter-related bloodstream infections during use and saves configuration time.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a disposable pre-filled heparin sodium saline sealing tube assembly. Background Technology

[0002] Currently, heparinized sodium saline locking solutions used in clinical practice are prepared and used immediately. The required dose of heparinized sodium saline is prepared by injecting heparinized sodium into the normal saline filling port. During preparation and use, the filling port cannot be avoided due to the need to puncture it, increasing the probability of foreign bodies and particles being introduced, thus increasing the risk of catheter-related bloodstream infections. To address these issues, a disposable, pre-filled heparinized sodium saline locking assembly is needed to reduce the occurrence of catheter-related bloodstream infections during use and save preparation time. Utility Model Content

[0003] The purpose of this invention is to provide a disposable pre-filled heparin sodium saline sealing assembly.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A disposable pre-filled heparin sodium saline sealing assembly includes a syringe, a packaged vial, a Luer conical connector, and a Luer locking connector. The head of the syringe is mounted to the Luer locking connector. The syringe contains sterile saline solution. The mouth of the packaged vial is mounted to the Luer conical connector. The Luer conical connector has a rotatable mounting cap and a conical head. The mounting cap is screwed onto the mouth of the packaged vial. The mounting cap and the conical head have a communicating channel. The mounting cap has an opening / closing gate within the channel for opening and closing the channel. The outer wall of the conical head has a threaded structure. The Luer locking connector has a locking cap with an internal threaded structure. The locking cap is threaded onto the conical head. The locking cap drives the conical head to rotate on the mounting cap, thereby opening and closing the opening / closing gate. The sterile saline solution from the syringe is injected into the packaged vial along the channel.

[0006] Furthermore, the encapsulated vial contains heparin sodium.

[0007] Furthermore, the opening and closing door includes a baffle, a pivot, and a sliding member. The baffle has multiple pieces and is merged into a seamless whole at the passage. One end of the baffle is rotatably mounted on the mounting cap via the pivot. The bottom of the conical head is provided with multiple sliding grooves that cooperate with the baffle. The other end of the baffle is slidably mounted in the sliding groove via the sliding member. When the sliding member slides outward, the corresponding baffle moves and the passage is opened; otherwise, the passage is closed.

[0008] Furthermore, a sealing layer for sealing fit is provided between the baffles.

[0009] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0010] The present invention relates to a packaged medicine bottle and syringe that are installed and fitted together by a Luer conical connector and a Luer locking connector. In use, simply install the Luer locking connector and the Luer conical connector, then rotate to open the opening door and the channel, and the syringe can inject the medicine into the packaged medicine bottle and mix it with the medicine inside. There is no need for the syringe to use a needle and puncture, which reduces the probability of foreign objects and particles being mixed in. During use, it can reduce the occurrence of catheter-related bloodstream infections and save preparation time. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the separation structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the opening and closing door and the closed conical head of this utility model;

[0014] Figure 4 This is a schematic diagram of the opening and closing door and the conical head of this utility model when opened;

[0015] Figure 5 This is a schematic diagram of the bottom of the conical head of this utility model.

[0016] Explanation of reference numerals in the attached figures:

[0017] Syringe 1; encapsulated vial 2; Luer conical connector 3; Luer locking connector 4; mounting cap 31; conical head 32; baffle 33; rotating shaft 34; sliding component 35; slide groove 36; locking cap 41. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] It should be noted that in this utility model, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element of this utility model must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Example

[0021] Cooperate Figures 1 to 5 As shown, this utility model discloses a disposable pre-filled heparin sodium saline sealing assembly, including a syringe 1, a packaged vial 2, a Luer conical connector 3, and a Luer locking connector 4. The head of the syringe 1 is installed with the Luer locking connector 4. The syringe 1 contains sterile saline. The mouth of the packaged vial 2 is installed with the Luer conical connector 3. The Luer conical connector 3 is provided with a rotating mounting cap 31 and a conical head 32. The mounting cap 31 is screwed onto the mouth of the packaged vial 2. The mounting cap 31 and the conical head 32 have a communicating channel. The mounting cap 31 has an opening and closing gate in the channel for opening and closing the channel. The outer wall of the conical head 32 has a threaded structure. The Luer locking connector 4 is provided with a locking cap 41 with an internal threaded structure. The locking cap 41 is threadedly installed with the conical head 32. The locking cap 41 drives the conical head 32 to rotate on the mounting cap 31, thereby opening and closing the opening and closing gate. The sterile saline from the syringe 1 is injected into the packaged vial 2 along the channel.

[0022] In this embodiment, the Luer locking connector 4 also has a fixing head inside the locking cap 41, which is fixed to the head of the syringe 1. Its structure is adapted to the head of the syringe. It is preferably fixed with glue and sealed, or the locking cap and syringe 1 can be integrally formed.

[0023] The encapsulated medicine bottle 2 contains heparin sodium.

[0024] The opening and closing door includes a baffle 33, a pivot 34, and a sliding member 35. The baffle 33 consists of multiple pieces that are seamlessly joined together at the passageway. One end of each baffle 33 is rotatably mounted on a mounting cap 31 via the pivot 34. The bottom of the conical head 32 has multiple grooves 36 that mate with the baffles. The other end of each baffle 33 is slidably mounted within a groove 36 via the sliding member 35. When the sliding member 35 slides outward, the corresponding baffle 33 moves, opening the passage; conversely, it closes the passage. The sliding member 35 is preferably a rod.

[0025] A sealing layer for sealing fit is provided between the baffles.

[0026] In this embodiment, the packaged medicine bottle 2 and syringe 1 are installed and fitted together via Luer conical connector 3 and Luer locking connector 4. In use, simply install the Luer locking connector 4 with the Luer conical connector 3, then rotate to open the opening and closing door to open the channel. The syringe 1 can then inject the medicine into the packaged medicine bottle 2 and mix it with the medicine inside. There is no need for the syringe 1 to use a needle and perform puncture, which reduces the probability of foreign objects and particles being mixed in. This can reduce the occurrence of catheter-related bloodstream infections during use, while also saving preparation time.

[0027] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A disposable pre-filled heparin sodium saline sealing assembly, characterized in that: The device includes a syringe, a packaged vial, a Luer conical connector, and a Luer locking connector. The head of the syringe is mounted to the Luer locking connector. The syringe contains sterile saline solution. The mouth of the packaged vial is mounted to the Luer conical connector. The Luer conical connector has a rotating mounting cap and a conical head. The mounting cap is screwed onto the mouth of the packaged vial. The mounting cap and the conical head have a communicating channel. The mounting cap has an opening / closing gate within the channel for opening and closing the channel. The outer wall of the conical head has a threaded structure. The Luer locking connector has a locking cap with an internal threaded structure. The locking cap is threaded onto the conical head. The locking cap drives the conical head to rotate on the mounting cap, which in turn opens and closes the opening / closing gate. The sterile saline solution from the syringe is injected into the packaged vial along the channel.

2. The disposable pre-filled heparin sodium saline sealing assembly as described in claim 1, characterized in that: The encapsulated vial contains heparin sodium.

3. The disposable pre-filled heparin sodium saline sealing assembly as described in claim 1, characterized in that: The opening and closing door includes a baffle, a pivot, and a sliding member. The baffle consists of multiple pieces that are joined together seamlessly at the passage. One end of the baffle is rotatably mounted on a mounting cap via the pivot. The bottom of the conical head is provided with multiple grooves that cooperate with the baffle. The other end of the baffle is slidably mounted in the groove via the sliding member. When the sliding member slides outward, the corresponding baffle moves and the passage is opened; conversely, the passage is closed.

4. The disposable pre-filled heparin sodium saline sealing assembly as described in claim 3, characterized in that: A sealing layer for sealing fit is provided between the baffles.