Patent ID: 11896750
Assignee: NXSTAGE MEDICAL, INC.
Field: Medical technology (Instruments)
Classification: CPC A  C | IPC A  C

Claim 0:
1. A fluid treatment plant, comprising:
a filter module that has a unique identifier relative to other filter modules, the filter module including at least a first filter and a second filter connected in series and connectable to a supply of a fluid;
a pump fluidly connected to the filter module and configured to pump the fluid;
a controller with a fluid quality sensor connected to detect a quality of the fluid between the first filter and the second filter;
a filter module detector connected to the controller, the controller being configured to detect the unique identifier of the filter module connected to the pump with the filter module detector, wherein
the controller is connected to control the pump responsively to a signal from the fluid quality sensor and the filter module detector,
the controller is configured to control the pump to continue pumping if, during a pumping operation, the fluid quality sensor gives a first indication, and
the controller is further configured to control the pump to continue pumping until a predetermined quantity of the fluid has been pumped if, during the pumping operation, said fluid quality sensor gives a second indication that is different from the first indication, and after the predetermined quantity of the fluid has been pumped to control the pump to not pump any more of the fluid until said filter module is replaced with a different filter module that has a different unique identifier than the unique identifier of said filter module.