Patent ID: 7077819
Filing Date: 2006-07-18
Classification: A61M

Abstract:
1. A method for determining the distribution volume of a blood component in the body of an organism during an extracorporeal blood treatment, in which the blood to be treated flows in an extracorporeal circuit through the blood chamber of a dialyzer subdivided by a semipermeable membrane into the blood chamber and a dialyzing-fluid chamber, and dialyzing fluid flows in a dialyzing-fluid path through the dialyzing-fluid chamber of the dialyzer, comprising the following method steps: bringing about a change in the concentration of the blood component in the blood upstream of the dialyzer by a change in the concentration of the blood component in the dialyzing fluid upstream of the dialyzer; and measuring the change in the concentration of the blood component in the dialyzing fluid downstream of the dialyzer which can be attributed to the change in the concentration of the blood component in the blood as a result of the change in the concentration of the blood component in the dialyzing fluid upstream of the dialyzer; and determining the distribution volume V of the blood component from the change in the concentration of the blood component in the dialyzing fluid upstream and downstream of the dialyzer.