초록 ▼

As particularly useful for implantable medical devices we teach a method and apparatus for orienting electrocardiogram input from electrodes of unknown vector orientation. This can be used for locating a fiducial point in the electrocardiogram signal by which other parameterization of measurements t

As particularly useful for implantable medical devices we teach a method and apparatus for orienting electrocardiogram input from electrodes of unknown vector orientation. This can be used for locating a fiducial point in the electrocardiogram signal by which other parameterization of measurements taken of the electrocardiogram signal can be made. It is of particular relevance in any cardio electrogram reading where the orientation of the electrogram signal is unknown, and knowledge of the orientation and a fiducial point can form the basis for useful analysis of electrogram signals for detection of physiologic conditions.

대표청구항 ▼

[ What is claimed is:] [1.] Method for determining an up or down orientation of the features of an electrocardiogram signal from an electrode vector of an unknown orientation comprising:sensing when a ventricular event has occurred,sampling and measuring points about the area of said ventricular eve

[ What is claimed is:] [1.] Method for determining an up or down orientation of the features of an electrocardiogram signal from an electrode vector of an unknown orientation comprising:sensing when a ventricular event has occurred,sampling and measuring points about the area of said ventricular event sufficient to capture a QRS complex surrounding said ventricular sensed event,deciding that the sample with the greatest absolute deviation from an isoelectric level is the location of the R-wave.