A system for detecting an occlusion in a fluid line is disclosed which can detect occlusions in the downstream or patient side of a disposable cassette containing a fluid pump thereon. The cassette includes a pressure diaphragm and is for installation onto and use with a main pump unit including a pressure...http://www.google.com/patents/US4863425?utm_source=gb-gplus-sharePatent US4863425 - Patient-side occlusion detection system for a medication infusion system
