Syringe Valve Male Luer Lock Connector
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Solution Overview
Problem
Existing medical syringes face challenges in preventing fluid contamination and ensuring operator comfort when connecting to medical lines, as conventional luer connectors may not provide adequate sealing and ease of use.
Innovation Solution
An integrated valve male luer lock connector with an elastic body and internal tubular element that seals the syringe in a closed state and opens for fluid flow when connected to a medical line, utilizing a cone-shaped surface for secure fitting and automatic retraction for hermetic sealing post-use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an integrated valve male luer lock connector is used, then contamination prevention is improved through hermetic sealing, but device complexity increases due to the integrated valve mechanism
Solution Approach 1:
The patent combines the valve function and connector function into a single integrated component. The male luer lock connector incorporates an internal valve mechanism with a closing element that can seal the fluid passage, merging two separate functions (valving and connecting) into one unified structure, thereby preventing contamination while maintaining practical usability.
Solution Approach 2:
The integrated valve mechanism automatically seals the fluid passage when the connector is disconnected from the medical line. The closing element is positioned to block the fluid passage by default, providing self-protection against contamination without requiring additional manual intervention or complex external mechanisms.
2Reliability
If a traditional luer connector is used, then ease of operation is maintained, but sealing reliability is insufficient to prevent fluid contamination
Solution Approach 1:
The valve closing element is pre-positioned to seal the fluid passage before connection to the medical line. This preliminary sealing action ensures that no fluid can leak or contaminate the environment before the connector is properly engaged, providing reliability without complicating the connection process.
Solution Approach 2:
The sealing function is localized to specific regions within the connector structure. The closing element seals at a specific location within the fluid passage, while the luer lock mechanism maintains its standard external interface for easy connection. This localized approach ensures reliable sealing without affecting the overall ease of operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents contamination by maintaining a hermetic seal during storage and ensuring easy, contamination-free fluid transfer, enhancing both safety and operator comfort during connection and disconnection processes.
Implementation Method 1
a hollow body made of elastic material (13) formed with an axially elastically yielding wall portion (14)
Data Source
Figure 1
AI summary
Syringe (1) including a cylinder (2) and a piston (4), in which the outlet end (6) of the cylinder (2) is integrated with a luer connector or a valve male luer lock connector (7).