ICD with VF prevention
US7162299B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2002 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Apr 27, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3621
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cardiac stimulation device includes a sensing unit for monitoring the electrical activity of a heart and a controller configured to predict the onset of an arrhythmia of the heart. The controller calculates a statistical indicia relating to the immediate past four R—R intervals in the form of a sliding average thereof. Upon the prediction that the risk of the onset of an arrhythmia is high, the controller compares the current value of the R—R interval to the indicia. If the current value of the R—R interval exceeds the indicia by a predetermined amount, the controller causes a high amplitude pacing pulse to be delivered to a selected cardiac site in an attempt to forestall the initiation of ventricular fibrillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.