Method and apparatus for discriminating ventricular and supraventricular tachyarrhythmias
US7474916B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2005 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Feb 6, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/363
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method are provided for discriminating supra-ventricular tachycardia (SVT) from ventricular tachycardia (VT). A monitoring EGM signal is acquired during a sensing window timed according to the time of R-wave detection on a reference EGM signal. A normal sinus rhythm (NSR) template is generated using the monitoring EGM signal during the time-referenced sensing window. During an unknown rhythm, the monitoring EGM signal sensed during the time-referenced sensing window is compared to the NSR template for use in computing a morphology metric. The morphology metric is compared to a VT/VF detection threshold for discriminating SVT from VT/VF.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.