Moldable leakage-proof duplex drug mixing syringe nozzle

By designing a shaped double-combined drug mixing syringe nozzle and using a catheter and rubber nozzle structure, the liquid leakage problem when the drug liquid is inverted is solved, ensuring that the drug liquid is not mixed in advance when the drug liquid is inverted, and improving the safety of use and treatment effect.

WO2025180431A1PCT designated stage Publication Date: 2025-09-04SHANGHAI LIKANGRUI BIOLOGICAL ENG
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Patent Information

Application Number
PCT/CN2025/079454
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-03-01
Filing Date
2025-02-27
Publication Date
2025-09-04

AI Technical Summary

Technical Problem

The existing double-double-mixed syringe nozzles are likely to cause the liquid to flow out when they are inverted or placed flat, affecting the effectiveness of use and at risk of infection.

Method used

A shaped double-die mixed medicine syringe nozzle is designed, which adopts a catheter and a rubber nozzle structure. The catheter is equipped with a drug liquid pipe and a slit. The rubber nozzle is fixed by glue. The catheter is made of TPU, PE, PVC, and TPE. The rubber nozzle is halogenated butyl rubber. It can spray the drug liquid under complex conditions and prevent premature mixing.

Benefits of technology

Accurate spraying of the drug liquid under complex conditions is achieved, preventing the drug liquid from mixing in advance when inverted, reducing the risk of infection, and improving the safety of use and therapeutic effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

A moldable leakage-proof duplex drug mixing syringe nozzle, comprising a catheter (1). A metal wire (1-1) is arranged in the middle of the catheter (1). Liquid drug pipelines (1-2) are arranged on two sides in the catheter (1). A mounting hole is formed in the front end of the catheter (1). A rubber nozzle (2) is embedded in the mounting hole. Liquid drug channels (2-1) are formed in two sides of the rubber nozzle (2). The tail end of each of the liquid drug channels (2-1) is a slit (2-2). The slit (2-2) is in communication with a spraying opening (2-3). The front ends of the liquid drug pipelines (1-2) are in communication with the liquid drug channels (2-1) in the two sides of the rubber nozzle (2).
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Description

A plastic and leak-proof double-drug mixing syringe nozzle Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a plastic and leak-proof double-drug mixing syringe nozzle. Background Art

[0002] When using a dual-mixing syringe to mix medications, the drugs must be sprayed onto the affected area. Once the nozzle is installed, the dual-mixing syringe must be stored temporarily. If the nozzle is accidentally knocked over or otherwise placed flat, the medication may flow into the mixer nozzle, causing premature mixing and impacting the effectiveness of the spray. During spraying, the spraying position may not be suitable for nozzle operation, and the operator's hands or other body parts may come into contact with other parts of the patient while spraying, posing a risk of infection. Technical issues

[0003] The utility model aims to overcome the deficiencies of the prior art and provides a double-connected drug-mixing syringe nozzle that is shapeable and leak-proof. Technical Solutions

[0004] To achieve the above objectives, a shapeable and leak-proof double-drug mixing syringe nozzle is designed, which includes a catheter, characterized in that a metal wire is provided in the middle of the catheter, liquid medicine pipes are provided on both sides of the catheter, a mounting hole is provided at the front end of the catheter, a rubber nozzle is embedded in the mounting hole, liquid medicine channels are provided on both sides of the rubber nozzle, the ends of the liquid medicine channels are slits, the slits are connected to the nozzle, and the front ends of the liquid medicine channels are connected to the liquid medicine pipes on both sides of the rubber nozzle.

[0005] The rear end of the medicine liquid pipeline is communicated with the syringe outlet through an inverted Y-shaped pipeline.

[0006] The rubber nozzle is fixed in the mounting hole by glue.

[0007] The material of the catheter is one of TPU, PE, PVC and TPE.

[0008] The rubber nozzle is made of halogenated butyl rubber.

[0009] The cross section of the conduit is elliptical. Beneficial effects

[0010] Compared with the prior art, the plastic catheter of the utility model can be used to spray wounds with complex conditions and angles, and when preparing to spray, the leak-proof nozzle can also protect the liquid medicine from premature mixing and affecting the treatment effect when the double medicine mixer is inverted. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG1 is a front view of the present utility model.

[0012] FIG2 is a side view of the present utility model.

[0013] FIG3 is a top view of the present utility model.

[0014] 1-2 , wherein 1 is a catheter, 1-1 is a metal wire, 1-2 is a drug liquid pipeline, 1-3 is a syringe outlet, 2 is a rubber nozzle, 2-1 is a drug liquid channel, 2-2 is a slit, and 2-3 is a nozzle. Modes for Carrying Out the Invention

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] As shown in Figures 1 and 2, a catheter 1 is provided, characterized in that: a metal wire 1-1 is provided in the middle of the catheter 1, and liquid medicine pipes 1-2 are provided on both sides of the catheter 1. A mounting hole is provided at the front end of the catheter 1, and a rubber nozzle 2 is inserted into the mounting hole. Liquid medicine channels 2-1 are provided on both sides of the rubber nozzle 2. The ends of the liquid medicine channels (2-1) are slits 2-2, which are connected to the nozzle 2-3. The front ends of the liquid medicine channels 2-1 are connected to the liquid medicine pipes 1-2 on both sides of the rubber nozzle 2. After the catheter 1 is bent, the metal wire 1-1 is used to shape the catheter 1 to ensure that it does not rebound. The liquid medicine enters the liquid medicine pipe 2-1 through the slit 2-2. The slit 2-2 is in the shape of a knife edge, requiring pressure to discharge the liquid, thereby preventing leakage. After the liquid medicine passes through the slit 2-2, it is mixed and sprayed out from the nozzle.

[0017] The rear end of the liquid medicine pipeline 1-2 is communicated with the syringe outlet 1-3 through an inverted Y-shaped pipeline. The inverted Y-shaped pipeline is convenient for arranging the syringe outlet 1-3. There are two syringe outlets 1-3, which are connected to a double syringe for injecting two liquid medicines.

[0018] The rubber nozzle 2 is fixed in the mounting hole by glue. The glue connection can prevent the rubber nozzle 2 from coming out of the mounting hole.

[0019] The material of the catheter 1 is one of TPU, PE, PVC, and TPE. Soft materials such as TPU, PE, PVC, and TPE facilitate the bending of the catheter 1.

[0020] The material of the rubber nozzle 2 is halogenated butyl rubber, which can play a good sealing role.

[0021] The cross section of the catheter 1 is elliptical, which facilitates the layout and bending of the internal pipe of the catheter 1.

[0022] The nozzles 2-3 are rectangular channels that can control the spraying range of the medicine.

[0023] When the utility model is used, the double syringe is inserted into the syringe outlet 1-3, the catheter 1 is bent and adjusted to a direction convenient for drug administration, the syringe is pushed to make the drug liquid flow into the drug liquid channel 1-2, and then enter the drug liquid pipes 2-1 on both sides of the rubber nozzle 2, and the drug liquid is continuously squeezed to pass through the slit 2-2. After the two drug liquids pass through the slit 2-2, they are fully mixed and sprayed out from the nozzle 2-3.

[0024] The liquid medicine needs pressure to flow out when passing through the slit 2-2. If the syringe is not used temporarily after installation, the slit 2-2 can prevent the liquid medicine from mixing in advance and prevent the liquid medicine from leaking.

Claims

1. A plastic and leak-proof double-drug mixing syringe nozzle, comprising a catheter (1), characterized in that: A metal wire (1-1) is provided in the middle of the catheter (1), and liquid medicine pipes (1-2) are provided on both sides of the catheter (1). A mounting hole is provided at the front end of the catheter (1), and the rubber nozzle (2) is embedded in the mounting hole. Liquid medicine channels (2-1) are provided on both sides of the rubber nozzle (2), and the ends of the liquid medicine channels (2-1) are slits (2-2). The slits (2-2) are connected to the nozzles (2-3), and the front ends of the liquid medicine channels (2-1) are connected to the liquid medicine pipes (1-2) on both sides of the rubber nozzle (2).

2. The shapeable and leak-proof dual-drug mixing syringe nozzle according to claim 1, characterized in that: The rear end of the liquid medicine pipeline (1-2) is connected to the syringe outlet (1-3) via an inverted Y-shaped pipeline.

3. The shapeable and leak-proof dual-drug mixing syringe nozzle according to claim 1, characterized in that: The rubber nozzle (2) is fixed in the mounting hole by glue.

4. The shapeable and leak-proof dual-drug mixing syringe nozzle according to claim 1, characterized in that: The material of the catheter (1) is one of TPU, PE, PVC, and TPE.

5. The shapeable and leak-proof dual-drug mixing syringe nozzle according to claim 1, characterized in that: The material of the rubber nozzle (2) is halogenated butyl rubber.

6. The shapeable and leak-proof dual-drug mixing syringe nozzle according to claim 1, characterized in that: The cross section of the catheter (1) is elliptical.

Citation Information

Patent Citations

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