Monitoring electrical muscular activity

Details Monitoring electrical muscular activity Monitoring electrical muscular activity

2004-03-16

2010-11-09

Hindenburg, Max (Department: 3736)

Surgery

Diagnostic testing

Detecting muscle electrical signal

C600S588000, C600S591000

Reexamination Certificate

active

07831302

ABSTRACT:
A method of monitoring electrical activity non-invasively (such as uterine activity) which includes applying a localized group of electrodes to a patient's skin and monitoring signals thereon. The electrodes are localized sufficiently such that their muscular signal contributions simulate a single source despite source non-stationarity. The signals are amplified, filtered and digitized. They are then digitally filtered and processed by independent component analysis (ICA) to separate a muscular activity source from other sources. The method may be used to monitor maternal uterine activity, fetal activity and maternal and fetal cardiac activity simultaneously with the aid of additional electrodes and associated circuitry.

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