Medical Connection Device with Self-Sealing Valve

The patent combines the clamping function and valve function into a single integrated connector assembly. The connector includes an integrated valve mechanism with movable walls that can close off fluid pathways, eliminating the need for separate clamps on both the infusion device and infusion line. This merging of functions reduces component count while maintaining the reliability of preventing blood reflux and air ingestion.

The patent implements a self-sealing valve mechanism that automatically closes to prevent blood reflux and air ingestion without requiring manual intervention. The valve includes movable walls that respond automatically to connection and disconnection events, closing the fluid pathway when the infusion line is disconnected and opening it when connected. This self-service mechanism eliminates the need for operators to manually close clamps, reducing operational steps while maintaining safety.

The patent employs flexible movable walls made of elastomeric or polymer materials to create the valve mechanism. These thin, flexible walls can deform and move in response to pressure changes and mechanical actuation, creating the self-sealing function without requiring complex mechanical structures. The flexible membrane approach allows the valve to be integrated into the connector body with minimal additional components, reducing the overall device complexity compared to rigid mechanical valve designs.