Patent ID: 7749393

Claim:
A method of providing fluid to a blood treatment system for performing a blood treatment, the method comprising: delivering a sterile batch container to a treatment location for the blood treatment, the sterile batch container containing, as delivered, a concentrate solution sealed therein and being sealed in part by a connector assembly attached to a first port of the sterile batch container, the connector assembly having a first connector and an inline filter, the inline filter being arranged between the first port and the first connector and being an anti-pyrogenic filter with a pore size effective to block contaminants such that the concentrate solution is isolated at least by the inline filter from contaminants outside the sterile batch container; unsealing the first connector of the connector assembly; reversibly coupling the first connector of the connector assembly to a supply of purified water, said purified water being sufficiently pure and sterile for infusion into a living animal; flowing the purified water from the supply through the inline filter into the sterile batch container so as to dilute the concentrate solution therein with the filtered purified water to form a sterile fluid and such that the inline filter prevents any touch contamination from reaching the contents of the sterile batch container; clamping the connector assembly with a non-reopenable tubing clamp arranged between the first connector and the inline filter; disconnecting the connector assembly from the sterile batch container so as to leave the connector assembly, including the inline filter, attached to the supply of purified water such that at least one of the non-reopenable tubing clamp and the inline filter isolates the supply of purified water from contaminants; reversibly coupling the sterile batch container to the blood treatment system; flowing sterile fluid from the sterile batch container through the first port to the blood treatment system at a rate at which the sterile fluid is consumed by a blood treatment process; and leaving the connector assembly attached to the supply of purified water for an interval of time to isolate the supply of purified water from contamination during said interval and thereafter detaching the connector assembly from the supply of purified water and immediately coupling a first connector of a connector assembly of another sterile batch container to the supply of purified water, the interval including a time interval between successive blood treatment processes provided to a patient; wherein the unsealing the first connector, the reversibly coupling the first connector, the flowing the purified water, the clamping, the disconnecting, the reversibly coupling the sterile batch container, and the flowing sterile fluid all occur at a same treatment location as the blood treatment.