Patent ID: 6610027
Filing Date: 2003-08-26
Classification: A61M

Abstract:
A system for extracorporeal blood treatment with a high blood flow rate through the filter and a low blood flow to and from the patient comprising an extracorporeal blood path comprising1) Arterial line connecting blood from the patient to the filter with a side line to inject anticoagulant and a suitable segment to fit for the blood pump of the hemodialysis machine situated between the filter and its junction with the recirculation line and an optional suitable segment to fit for a second blood pump of the hemodialysis machine situated between the patient and its junction with the acceleration line, 2) Venous line connecting blood from the filter to the patient with an air trapping chamber, and 3) recirculation line carrying part of the blood from the venous line to the arterial line with an optional adjustable valve or an optional suitable segment to fit for a second blood pump of the hemodialysis machine, Where 3 different blood flow rates1) blood flow rate to the filter in the blood circuit equal to the sum of 2) the blood flow rate in the recirculation line and 3) the blood flow rate to and from the patient, are generated and adjusted in the circuit by either,1) two blood pumps situated at two of the 3 sites, a) the arterial line between the filter and its connection with the recirculation line, b) the arterial line between the patient and its connection with the recirculation line or c) the recirculation line, or 2) one blood pump and one valve, where a) the blood pump is situated at the arterial line between the filter and its connection with the recirculation line and b) the valve at the recirculation line.