Patent ID: 8743353
Filing Date: 2014-06-03
Classification: A61M,G01N

Abstract:
1. A device for the detection of blood or blood constituents in a fluid system of an extracorporeal blood treatment apparatus, said extracorporeal blood treatment apparatus comprising a dialyzer or filter divided by a semipermeable membrane into a first chamber and a second chamber, wherein the first chamber is part of an extracorporeal blood circuit and the second chamber is part of the fluid system, said device comprising: a light source for emitting light that enters into a fluid present in the fluid system; a light sensor for receiving light that exits from the fluid present in the fluid system; and an evaluation unit configured to: evaluate an intensity I distinguish between an entry of blood into the fluid system due to a defect in the dialyzer or filter, and an entry of hemoglobin into the fluid system due to a hemolysis, on the basis of the change in the intensity I