Described is an accurate, easy to use and inexpensive device and method for substantially immediate detection and indication of malfunction in an intravenous delivery system. The two piece device includes a disposable conduit body interconnected with the tubing of an intravenous delivery system and a...http://www.google.de/patents/US6974438?utm_source=gb-gplus-sharePatent US6974438 - Method and device for detecting malfunction in a gravity fed intravenous delivery system
