Implantable medical device responsive to heart rate variability analysis
US6144878A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2000 |
| Grant date | Nov 7, 2000 |
| Priority date | — |
| Expiry date | Jan 5, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36592
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for evaluating heart rate variability of the heart of a person in order to forecast a cardiac event. A cardiac stimulator receives heart beat signals from the heart and determines a measurement of heart rate variability based on statistical data derived from the heart beat signals and sensing data derived from a sensor. This measurement of heart rate variability is compared with previously stored heart rate variability zones defining normal and abnormal heart rate variability. These zones are modifiable after the occurrence of a cardiac event. Once a cardiac event is detected, a pathway is computed which extends from a generally normal heart rate variability condition to an abnormal heart rate variability condition. Subsequent measurements of heart rate variability are compared with this pathway. Selective therapy regimes are initiated depending on the measurement of heart rate variability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.