Patent ID: 6263238
Filing Date: 2001-07-17
Classification: A61N

Abstract:
An automatic external defibrillator (AED) having a ventricular fibrillation detector, comprising:first detector means for receiving a cardiac rhythm signal, wherein said cardiac rhythm signal is submitted to said first detector means in a series of segments, and for producing a first output for each segment, wherein said first output is representative of the absence or presence of ventricular fibrillation;second detector means operably connected to said first detector means, said second detector means for receiving said first outputs and for producing a second output, wherein said second output is representative of a weighted combination of at least two of said first outputs; andthird detection means operably connected to said second detection means, wherein said third detection means compares said second output against a predetermined criterion determining therefrom if ventricular fibrillation is present.