This invention provides a method for controlling a fluid separation system, preferably a blood apheresis system having a leukocyte reduction chamber. The method utilizes a three-level alarm system. A first-level alarm condition is triggered in response to a pressure drop in the system to less than or...http://www.google.de/patents/US7169352?utm_source=gb-gplus-sharePatent US7169352 - Extracorporeal blood processing methods and apparatus
