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updated 05/24/13

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Valve for use with a syringe and which prevents backflow

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. ...

Agent: Hovey Williams LLP - Kansas City, MO, US
Inventor: Bruce Leigh Kiehne
USPTO Applicaton #: #20070246674 - Class: 251149600 (USPTO) - 10/25/07 - Class 251

Related Patent Categories: Valves And Valve Actuation, With Correlated Flow Path, Valve Operated By Joining Flow Path Sections, Joining Motion Includes Linear Valve Operating Component, Motion Opposed By Valve Spring
The Patent Description & Claims data below is from USPTO Patent Application 20070246674, Valve for use with a syringe and which prevents backflow.

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