Pressure actuated valve with improved biasing member

Details Pressure actuated valve with improved biasing member Pressure actuated valve with improved biasing member

2003-06-27

2008-10-14

Deak, Leslie R (Department: 3761)

Surgery

Blood drawn and replaced or treated and returned to body

Constituent removed from blood and remainder returned to body

C604S167030

Reexamination Certificate

active

07435236

ABSTRACT:
A valve for controlling material flow through a catheter, comprises a first flexible member including a first moveable element, wherein, when the first moveable element is in the open position, material may flow past the first flexible member through a first lumen of the catheter and, when the first moveable element is in the closed position, flow through the first lumen is prevented and a first biasing member coupled to the first flexible member for biasing the first moveable member toward the closed position.

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patent: 96/23158 (1996-08-01), None

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