Patent ID: 8523797

Claim:
A point of care fluid testing system for determining properties of a fluid comprising: a patient connection adapted to connect the system to a patient to collect a fluid sample; a primary fluid routing portion having a pump region, a fluid transfer region comprising a valve, and an in-line testing region, the fluid transfer region disposed between the pump region and the in-line testing region of the primary fluid routing portion, the pump region adapted to pump the fluid sample from the patient to the in-line testing portion, and to pump a portion of the fluid sample from the primary fluid routing portion back to the patient following testing, the in-line testing region comprising a first sensor adapted to evaluate at least a first characteristic, comprising a concentration of an analyte, of the fluid sample, and the fluid transfer region being adapted to allow a portion of the fluid sample to be transmitted out of the primary fluid routing portion; a pump that interacts with the pump region of the primary fluid routing portion; a secondary fluid routing portion including an off-line testing portion adapted to receive the portion of the fluid sample transmitted out of the primary fluid routing portion via the fluid transfer region when the valve is in an open position, and adapted to close-off the portion of the fluid sample received from the primary fluid routing portion in the off-line testing portion when the valve is in a closed position so that the portion of the fluid sample in the off-line testing portion is prevented from flowing back into the primary fluid routing portion, the off-line testing portion comprising a second sensor adapted to evaluate a second characteristic of the fluid sample; a main body comprising a housing, the first sensor of the in-line testing region and the second sensor of the off-line testing portion both disposed within the housing; and a flushing fluid connection adapted to connect the system to a flushing fluid to flush the system following the pumping of the fluid sample back to the patient.