Patent ID: 6210360
Filing Date: 2001-04-03
Classification: A61M

Abstract:
A fluid displacement pump, comprising:a rigid hollow body having first and second open ends;at least one fluid displacement body comprising a housing having first and second open ends and a flexible partition joined to the housing near a first end thereof, the at least one displacement body being disposed within the hollow body adjacent to an end thereof;a pivot supporting the hollow body between the first and second ends thereof;a flexible partition of a low-friction elastomeric material disposed within the hollow body adjacent to at least one of the open ends;an actuator comprising a mass movable within the hollow body and substantially conforming to an inner surface of thereof and which acts upon the flexible partition so as to move the partition within the hollow body, creating a variable volume fluid chamber between the partition and the hollow body; anda pulley system having cables connected to the hollow body on each side of the pivot for aiding the movement of the mass within the hollow body.