Patent ID: 8485999
Filing Date: 2013-07-16
Classification: A61M

Abstract:
1. A blood treatment apparatus, comprising: a blood treatment unit configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid, a pair of fluid pumps configured to pass the blood treatment fluid through the blood treatment unit, a pair of blood pumps configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel, and a flow measurement device configured to determine at least one blood flow parameter reflecting a flow of blood in relation to the blood treatment unit, wherein the flow measurement device is configured to determine the at least one blood flow parameter based on a difference between: a first amount of the fresh blood treatment fluid received into the apparatus, and a second amount of the used blood treatment fluid emitted from the apparatus, the first and second amounts being registered during a first period of operation of the apparatus, and the at least one blood flow parameter representing an average blood flow during a second period.