Patent ID: 8460558

Claim:
A method of providing fluid to a blood treatment system for performing a blood treatment, the method comprising: at least one of carbon-filtering, deionizing, and ultra-filtering water to produce purified water; unsealing a first connector of a connector assembly of a sterile batch container, the connector assembly being attached to a filling port of the sterile batch container and having a sterile filter arranged between the filling port and the first connector; coupling the first connector so as to receive the produced purified water; monitoring a transmembrane pressure across the sterile filter while flowing the purified water through the connector assembly into the sterile batch container so as to provide a sterile fluid stored therein; detaching the connector assembly from the filling port of the sterile batch container; after said detaching, coupling the sterile batch container to the blood treatment system; flowing the sterile fluid from the sterile batch container to the blood treatment system; and in response to a change in the transmembrane pressure exceeding a predefined level, generating an alarm signal.