Apparatus and method for discriminating between heart rhythms with similar atrial and ventricular rates
US5327900A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1992 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Apr 28, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3622
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus and a method for discriminating between tachycardias of physiological origin, and those of pathological origin having similar atrial and ventricular rates, are disclosed. The apparatus includes two sensing electrodes for registering the electrograms from the atrium and the ventricle of the heart. There is further included a signal processing element for determining the times of atrial and ventricular events, and an algorithm for classifying the heart rhythm. The algorithm includes a means for discriminating between different types of heart rhythms having overlapping ventricular rates and having similar atrial and ventricular rates. The method utilizes an analysis of the relationships between successive atrial and ventricular intervals (i.e., atrial-atrial (AA), ventricular-ventricular (VV) and atrial-ventricular (AV) intervals) in discriminating between such heart rhythms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.