Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Fredrik Jalde0
Urban Blomberg0
Date of Patent
March 30, 2010
0Patent Application Number
105799800
Date Filed
November 18, 2004
0Patent Primary Examiner
Patent abstract
A method and apparatus for filtering an electromyogram (EMG) signal from a raw signal which includes a contribution from an electrocardiogram (EKG) signal is disclosed. The method includes the steps of estimating an attribute (such as a Fourier transform) of both the EMG contribution to the raw signal and the EKG contribution to the raw signal and, dependent on both frequency spectrums, determining an EMG window in a frequency range and obtaining the EMG signal by passing it through a filter defined by the frequency range. The method is particularly used when monitoring a multi-channel electrical recording from a plurality of electrodes attached to a patient's diaphragm.
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