Disposable blood pump

Claim 1

A disposable blood pump comprising, a rigid housing having a cavity therein and having first and second parts, said first part having a first supporting shoulder and said second part having a second and third supporting shoulder, said first part including a port for receiving actuating fluid, said second part including a blood inlet port and a blood outlet port, coupling means connected between the first and second parts for joining said two parts with the first and second shoulders adjacent each other, coupling means connected to the second part for joining the second part to another blood handling device, a flexible hemocompatible diaphragm positioned in the cavity, said diaphragm having an outer edge supported between the first and second supporting shoulders, a flexible wall hemocompatible pumping chamber having first and second ends, and positioned in said cavity, said first end supported between the first and second supporting shoulders, said second end engaging said third shoulder, said chamber having an integral inlet leaf valve and an integral outlet leaf valve, said inlet valve being in communication with the blood inlet port, and said outlet valve being in communication with the blood outlet port, said valves being operable between open and closed positions by alternately actuating the diaphragm.