Patent ID: 7967022

Claim:
A cassette integrated system comprising: a mixing cassette, said mixing cassette comprising: a mixing cassette housing comprising at least one fluid inlet line and at least one fluid outlet line; at least one reciprocating pressure displacement membrane pump fluidly connected to said housing wherein said pressure pump pumps at least one fluid from said fluid inlet line to at least one of said fluid outlet line; and at least one mixing chamber fluidly connected to said housing, said mixing chamber fluidly connected to said fluid outlet line; a middle cassette, said middle cassette comprising: a middle cassette housing having at least one fluid port and at least one air vent port wherein said air vent port vents a fluid source outside said middle cassette housing; and at least one reciprocating pressure displacement membrane pump fluidly connected to said housing wherein said pump pumps a fluid; and a balancing cassette, said balancing cassette comprising: a balancing cassette housing comprising at least two inlet fluid lines and at least two outlet fluid lines; at least one balancing pod fluidly connected to said balancing cassette housing and in fluid connection with said fluid path, whereby said balancing pod balances the flow of a first fluid and the flow of a second fluid such that the volume of said first fluid equals the volume of said second fluid and wherein said balancing pod comprises a membrane wherein said membrane forms two balancing chambers; and at least one reciprocating pressure displacement membrane pump is fluidly connected to said balancing cassette housing wherein said pressure pump pumps a fluid from said fluid inlet line to said fluid outlet line; wherein said mixing cassette is fluidly connected to said middle cassette by at least one fluid line and wherein said middle cassette is fluidly connected to said balancing pod by at least one fluid line and whereby said reciprocating pressure displacement membrane pumps, said mixing chamber and said balancing pod are connected to said housings wherein said reciprocating pressure displacement membrane pumps, said mixing chamber and said balancing pod are located in areas between said cassettes.