Tachyarrhythmia detection using dynamic duration
US8473042B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2010 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jul 1, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/361
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus comprises an implantable cardiac signal sensing circuit configured to produce a sensed cardiac signal representative of cardiac activity of a subject and a controller communicatively coupled to the cardiac signal sensing circuit. The controller includes a sensing module configured to detect a cardiac depolarization using the sensed cardiac signal and an arrhythmia detection module. The arrhythmia detection module is configured to detect a depolarization rate or interval that satisfies a first tachyarrhythmia detection rate zone threshold, adjust a specified detection duration threshold for the tachyarrhythmia detection zone according to the detected depolarization rate, declare that the detected depolarization rate is an episode of tachyarrhythmia when the detected depolarization rate is sustained for the adjusted detection duration threshold, and provide an indication of the tachyarrhythmia to a user or process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.