Method and apparatus for detecting occlusions in a parenteral administration system of a type having a peristaltic pump for pumping a fluid through a feeding tube to a patient. A pressure transducer measures the cyclicly varying pressure of the fluid in the feeding tube and produces a corresponding pressure...http://www.google.es/patents/US4460355?utm_source=gb-gplus-sharePatente US4460355 - Fluid pressure monitoring system
