发明名称 |
Cardiac ambulatory monitor |
摘要 |
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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申请公布号 |
US4667682(A) |
申请公布日期 |
1987.05.26 |
申请号 |
US19850751016 |
申请日期 |
1985.07.02 |
申请人 |
CREATIVE MEDICAL SYSTEMS, INC. |
发明人 |
IHLENFELD, III, WILLIAM |
分类号 |
A61B5/0432;A61B5/0436;A61B5/0464;(IPC1-7):A61B5/04 |
主分类号 |
A61B5/0432 |
代理机构 |
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代理人 |
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地址 |
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