Systems and methods for adaptive filtering artifacts from compos

Details Systems and methods for adaptive filtering artifacts from compos Systems and methods for adaptive filtering artifacts from compos

1995-02-17

1997-05-20

Jastrzab, Jeffrey R.

Surgery

Truss

Pad

128901, 128716, 128733, 128731, 128736, 36472419, A61B 504

Patent

active

056304250

ABSTRACT:
Analog or digital systems or methods filter an artifact from a signal derived from a biological event comprising sample values arranged with respect to time. The systems and methods generate a variable expressing a template of the artifact and reduce the derived biological signal by the variable to derive a filtered derived biological signal. The systems and methods change the variable over time based upon the energy of the filtered derived biological signal to minimize the energy of the artifact remaining in the filtered derived biological signal over time. The systems and methods output the filtered derived biological signal. The systems and methods remove artifacts from signals derived from a biological event; for example, electrograms, electrocardiograms, electroencephalograms, electrogastrograms, electromyograms, and respiratory signals.

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