Highly specific technique for discriminating atrial fibrillation from atrial flutter
US7177682B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2002 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Nov 6, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/142
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cardiac rhythm management system including a highly sensitive technique for discriminating AF from AFL. An electrode disposed in or about a heart senses a cardiac signal. A controller through a sensing circuit receives the sensed cardiac signal from the electrode and processes the sensed cardiac signal to compute an average cycle length-to-cycle length variation based on serial interval relationships from the sensed cardiac signal, and then comparing the computed average cycle length-to-cycle length variation to one or more pre-determined threshold values to discriminate AF from AFL. As a result of substantial difference in cycle length-to-cycle length variation between AF and AFL (despite similar average cycle lengths), the sequence-based measure of cycle length-to-cycle length variability proves to be a highly specific and reliable discriminator of AF from AFL.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.