Cardiac ambulatory monitor

Details Cardiac ambulatory monitor Cardiac ambulatory monitor

1985-07-02

1987-05-26

Kamm, William E.

Surgery

Truss

Pad

128702, 128705, 128706, A61B 504

Patent

active

046676821

ABSTRACT:
An ambulatory arrhythmia detection and ECG recorder senses both tachycardia and bradycardia conditions and activates a tape recorder to record the ECG for a period of 15 seconds after an arrhythmia is detected. Tachycardia and bradycardia conditions are sensed by converting the QRS component signals of the ECG into a pulse train which is a real time representation of the patient's actual heartbeat and then measuring the time between pulses utilizing two different oscillator controlled counter circuits. The first circuit indicates a tachycardia condition if the time between pulses is less than 500 milliseconds (120 beats per minute) or some other time preset by a doctor and the second circuit indicates a bradycardia condition if the time between pulses is greater than 1200 milliseconds (50 beats per minute) or some other time preset by a doctor. The recorder may also record the ECG waveform for 15 seconds upon a manual activation thereof and at preset intervals such as every half hour or hour in accordance with a preset program.

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patent: 4022192 (1977-05-01), Laukien
patent: 4034745 (1977-07-01), Bloom
patent: 4083366 (1978-04-01), Gombrich
patent: 4184487 (1980-01-01), Peyer

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