Patent ID: 6189859
Filing Date: 2001-02-20
Classification: A61M,Y10S

Abstract:
A valve including:a valve housing having an inlet and an outlet and defining a passage from the inlet to the outlet;an elongate cannula within the passage of the housing, the cannula having an inlet at one end thereof and an outlet adjacent and spaced from an opposed closed end thereof to define a flow path from the inlet to the outlet of the housing;a seal comprising a body defining an opening into which the closed outlet end of the cannula extends, the body making a sliding seal against the cannula in the vicinity of the cannula outlet, and a fixed seal against the housing, the cannula being displaceable relative to the seal body between a closed position in which the cannula outlet is upstream of the sliding seal and an open position in which the cannula outlet is downstream of the sliding seal thereby placing the cannula outlet in fluid communication with the housing outlet; anda spring urging the seal body to the closed position around the cannula outlet and against the housing at the fixed seal.