Patent ID: 7503908

Claim:
A valve for controlling fluid flow comprising a valve housing and a valve core disposed therein; the valve housing comprising an inlet, an outlet, and an interior cavity; the valve core comprising a cannula comprising a hollow core, a plurality of openings, and an enlarged section between a proximal end and a distal end of the cannula mechanically engaged to an engagement collar; a diaphragm located proximate the proximal end of the cannula and a septum located proximate the distal end of the cannula each comprising an opening and having the cannula passing therethrough, the diaphragm and the septum being positioned in the interior cavity of the housing; a first biasing member biased against the diaphragm and the engagement collar; a second biasing member biased against the engagement collar and the septum; and wherein the cannula is movable relative to the septum.