Defibrillator ECG interpreter

Surgery – Truss – Pad

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128702, 128903, A61B 504

Patent

active

049191446

ABSTRACT:
A defibrillator electrocardiogram (ECG) interpreter for indicating whether to treat a patient with a defibrillator. A sequence of digitized samples from a patient's ECG is periodically tested to identify asystole, noise, no-treat and treat conditions. A single result then is stored for each period. The treat result occurs when a patient is experiencing ventricular fibrillation or high rate ventricular tachycardia. The current result and up to two of the results corresponding to immediately previous ECG sample periods are then compared to derive a system output. In an automatic defibrillator embodiment, the system output causes defibrillation automatically for a treat output. In a semiautomatic defibrillator embodiment, the system output causes a message to be presented to an operator. The operator then makes the decision whether to defibrillate based upon the system output.

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patent: 4619265 (1986-10-01), Morgan et al.
patent: 4635639 (1987-01-01), Hakala et al.
patent: 4796620 (1989-01-01), Imran

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