Device, method and computer-readable storage medium for enhanced sense event classification in implantable devices by means of morphology analysis
US8090434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2009 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | May 15, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16H50/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable cardiac device, e.g., a pacemaker, defibrillator, cardioverter or biventricular pacing device, that can sense cardiac electrical signals and accurately classify the sensed events. The device provides a template signal and a test signal originated from an electrogram. The device further transforms at least the test signal into a representation of the test signal for example in numerical format where the sample values of the test signal take the form of integers. The device further determines a correlation between the template and test signals, and classifies the sense events based on the correlation. The electrogram may be an intracardiac electrogram (IEGM), atrial electrogram (AEGM), ventricular electrogram (VEGM), surface electrocardiogram (ECG) or subcutaneous electrogram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.