Valve for use with a syringe and which prevents backflow
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United States of America Patent
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N/A
Issued Date -
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app pub date -
Jan 9, 2006
filing date -
Aug 23, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A one-way valve assembly can be fitted to the end of a syringe to allow fluid to flow from the syringe and into a body cavity but to prevent backflow. The valve assembly is opened by insertion of the luer tip of the syringe into the assembly inlet. The valve has an internal elastic member that forms a variable volume internal chamber. This chamber expands upon insertion of the luer tip into the inlet and shrinks when the luer tip is removed from the assembly. The shrinking action creates a positive pressure in the valve assembly to prevent backflow.
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