Multi-channel ecg measurement
AssigneeBiosense Webster (Israel) Ltd.
InventorsMichael Levin, Meir Bar-Tal
Life of this patent
Estimating the term…
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.
Claims18
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 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.
Apparatus for acquiring electrical signals from a living subject, comprising:
- an injection electrode attached to the subject;
- input electrodes attached to the subject;
- and
- a processor, which is configured to:
- inject a known calibration signal to the subject via the injection electrode,
- measure respective levels of output signals generated at the input electrodes in response to the calibration signal,
- derive respective weighting factors for the input electrodes in response to the respective levels, and
- apply 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.