Multi-channel ECG measurement
AssigneeBiosense Webster (Israel) Ltd.
InventorsMichael Levin, Meir Bar-Tal
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Abstract
A method for acquiring electrical signals from a living subject, including injecting, via an injection electrode attached to the subject, a known calibration signal to the subject and measuring respective levels of output signals generated at input electrodes attached to the subject in response to the calibration signal. The method further includes deriving respective weighting factors for the input electrodes in response to the respective levels, and applying the respective weighting factors to physiological signals acquired by the input electrodes, so as to generate respective corrected physiological signals.
Claims9
A method for acquiring electrical signals from a living subject, comprising:
- injecting, via an injection electrode attached to the subject, a known calibration signal to the subject;
- measuring respective levels of output signals generated at input electrodes attached to the subject in response to the calibration signal;
- deriving respective weighting factors for each input electrode in response to the respective levels using a correction vector comprising a numerical measure of the known calibration signal acquired by each input electrode;
- and
- applying the respective weighting factors to physiological signals acquired by the input electrodes, so as to generate respective corrected physiological signals.
Dependencies are inferred from the claim text.