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Apparatus and method for ECG baseline shift detecting

  • US 4,170,227 A
  • Filed: 06/22/1978
  • Issued: 10/09/1979
  • Est. Priority Date: 12/27/1976
  • Status: Expired due to Term
First Claim
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1. Apparatus for providing an ECG signal and detecting baseline shift in said ECG signal comprising,a first multielement electrode means having elements closely spaced but insulatedly separated for connection to a first surface portion of a patient, the ECG.potential between said elements being negligible,a second multielement electrode means having elements closely spaced but insulatedly separated for connection to a second surface portion of said patient, the ECG potential between said elements being negligible,first means for differentially combining the potentials of one element of said first multielement electrode means and one element of said second multielement electrode means for providing a first ECG signal,second means for differentially combining the potentials of another element of said first multielement electrode means and another element of said second multielement electrode means for providing a second ECG signal,and means for differentially combining said first and second ECG signals to provide an artifact signal representative of baseline shift in said ECG signals.

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