Method and apparatus for detection of premature atrial contraction
US6745075B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2001 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Nov 22, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3622
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a method for identifying and classifying premature atrial contractions, a cardiac lead having multiple electrodes, electrically separated from each other, at its tip is placed in contact with cardiac tissue, so that at least two of the electrodes are simultaneously in contact with the cardiac tissue. When a depolarization wave arrives at the tip, respective unipolar signals are detected from multiple electrodes in contact with the cardiac tissue, and these signals are analyzed, such as by identifying a time offset between pairs of the signals, to identify a propagation direction of the depolarization wave. Dependent on this propagation direction, the depolarization wave is classified as representing a normal sinus beat or a premature atrial contraction. By further analysis, the premature atrial contraction, if present, is classified as originating either from the right atrium or the left atrium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.