Patent ID: 7520979

Claim:
A hemodialysis apparatus, comprising; a control member, a blood measuring means that measures a blood parameter at the time of hemodialysis passing, converts the blood parameter into a blood index value and conveys the blood index value to the control member; and an actual working member that performs blood treatment, wherein the control member sets up a target control line which consists of a previously determined target blood index level, and wherein the control member controls a water removal speed by feed forward control based on a blood indication level at a selected controlling point, blood indication levels which are in consideration of a control delay at a previous selected controlling point adjacent to the selected controlling point, a water removal speed used between the selected controlling point and the previous controlling point adjacent to said controlling point, a blood volume at the time of the initiation of hemodialysis, and a target blood indication level determined by said target control line at the next controlling point after the selected controlling point.