Adaptive waveform appraisal in an implantable cardiac system
US8744555B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2010 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Mar 30, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/37
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and implantable devices for cardiac signal analysis. The methods and devices make use of waveform appraisal techniques to distinguish event detections into categories for suspect events and waveform appraisal passing events. When adjustments are made to the data entering analysis for waveform appraisal, the waveform appraisal thresholds applied are modified as well. For example, when the data analysis window for waveform appraisal changes in length, a waveform appraisal threshold is modified. Other changes, including changes in sensing characteristics with which waveform appraisal operates may also result in changes to the waveform appraisal threshold including changes in gain, sensing vector, activation of other devices, implantee posture and other examples which are explained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.