title: CareFusion 3100B high-frequency oscillatory ventilator diaphragms require pre-use inspection.
abstract: A rubber diaphragm in the driver assembly of the CareFusion 3100B high-frequency oscillatory ventilator may fail before its scheduled replacement at 4,000 hours of use, rendering the unit incapable of ventilation. CareFusion is in the process of revising the suggested replacemen schedule and adding user guidance to the device's operator's manual to address the problem. Users should thoroughly inspect the diaphragm each time they connect a breathing circuit and should remove from service any 3100B whose diaphragm shows signs of degradation.
mesh_terms: D004868:Equipment Failure; D004869:Equipment Safety; D006612:High-Frequency Ventilation / Q000295:instrumentation*; D006801:Humans; D012122:Ventilators, Mechanical