The concentration of a substance or group of substances in a body fluid is monitored by means of an interface held in contact with a living human or animal body and a detector is positioned downstream from the interface. A profusion fluid is passed from the interface to and along the detector at a flow...http://www.google.de/patents/US6013029?utm_source=gb-gplus-sharePatent US6013029 - Monitoring the concentration of a substance or a group of substances in a body fluid
