Patent ID: 7776014

Claim:
A cartridge cassette for use with a surgical irrigation pump having a pumping actuator, the cartridge cassette comprising: a pumping chamber in fluid communication with a source of fluid and an irrigation conduit, the pumping chamber being defined in part by a diaphragm, the diaphragm positioned to cooperate with a reciprocating pumping actuator; means for removably connecting the cartridge cassette to the surgical irrigation pump to establish working communication between the diaphragm and the reciprocating pumping actuator, the diaphragm being preloaded against the reciprocating pumping actuator; an upstream valve disposed in the cartridge cassette and in fluid communication with the source of fluid and in direct communication with the pumping chamber; and a downstream valve disposed in the cartridge cassette and in fluid communication with the irrigation conduit and in direct communication with the pumping chamber, wherein the diaphragm is disposed intermediate the upstream and downstream valves and the means for removably connecting the cartridge cassette to the surgical irrigation pump, and wherein the upstream and downstream valves are disposed on a common side of the cartridge cassette.