Detecting ventricular noise artifacts in an active implantable medical device for pacing, resynchronization and/or defibrillation of the heart
US8195293B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2007 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Jun 4, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3718
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Sensing ventricular noise artifacts in an active implantable medical device for pacing, resynchronization and/or defibrillation of the heart. This device concerns sensing heart rhythm through an endocardial electrode collecting the depolarization potentials, and detecting the myocardium contractions through an endocardial acceleration sensor. The device searches for ventricular noise artifacts (X, Y) by correlating the signals representative of successive ventricular and atrial depolarizations (P, R) with the signals representative of successive acceleration peaks (PEA I). In case of a lack of correlation, a signal of suspicion of ventricular noise is delivered, which temporarily modifies the sensing sensitivity (S) of the sensing circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.