Valve for use with a syringe and which prevents backflow

Details Valve for use with a syringe and which prevents backflow Valve for use with a syringe and which prevents backflow

2006-01-31

2006-01-31

Look, Edward K. (Department: 3751)

Valves and valve actuation

With correlated flow path

Valve operated by joining flow path sections

C604S249000, C604S905000

Reexamination Certificate

active

06991215

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.

REFERENCES:
patent: 3965910 (1976-06-01), Fischer
patent: 5147333 (1992-09-01), Raines
patent: 5360413 (1994-11-01), Leason et al.
patent: 5520665 (1996-05-01), Fleetwood
patent: 5699821 (1997-12-01), Paradis
patent: 5730418 (1998-03-01), Feith et al.
patent: 6039302 (2000-03-01), Cote et al.
patent: 6245048 (2001-06-01), Fangrow, Jr. et al.
patent: 6428520 (2002-08-01), Lopez et al.
patent: 736326 (2001-07-01), None
patent: 33 30 148 (1985-03-01), None
patent: 1 027 901 (2000-08-01), None
patent: WO 98/26835 (1998-06-01), None

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