Patent ID: 7892196

Claim:
A continuous renal replacement therapy (CRRT) device comprising: means for enabling a patient to wear the entire CRRT device; a battery powered microcontroller; a blood circuit including a blood inlet tube for receiving blood from a patient, the blood circuit including: a first, battery powered pump channel, controlled by the microcontroller for pumping blood in a pulsatile manner through the blood circuit; a first micropump for pumping an anticoagulant into the blood circuit; a dialyzer for receiving blood pumped by the first pump channel; a pressure transducer for providing a blood circuit pressure signal to the microcontroller; an outlet port for allowing blood to go back into the patient after being received by the dialyzer; and a dialysate circuit for circulating dialysate through the dialyzer and for removing contaminants from the circulating dialysate, the dialysate circuit comprising: a second, battery powered pump channel, controlled by the microcontroller, for pumping dialysate in a pulsatile manner at a flow rate between 40 ml/min and 100 ml/min through the dialysate circuit; a filter section for reacting with predetermined substances in the dialysate in order to refresh the dialysate for continued usage in the dialysate circuit; a sensor, attached to the dialysate circuit, for providing a signal to the microcontroller indicating that the filter section requires maintenance; a degasser, attached to the dialysate circuit, for removing gas from the dialysate circuit; and wherein the microcontroller, blood circuit and dialysate circuit are operably interconnected to provide continuous renal replacement therapy while the CRRT device is worn by a patient.