Technique for discriminating between coordinated and uncoordinated cardiac rhythms
US7369890B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 2003 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Dec 12, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3622
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for discriminating cardiac rhythms in sensed cardiac complexes associated with at least two cardiac signals, which includes at least two electrodes disposed at different locations in a heart for sensing at least two cardiac signals. A controller through a sensing circuit receives the sensed at least two cardiac signals from the electrodes and processes the sensed at least two cardiac signals to compute interelectrode time differences between the cardiac complexes associated with one of the at least two sensed cardiac signals, and corresponding cardiac complexes associated with the other of the at least two sensed cardiac signals. The controller further computes a detection time difference variability from the computed interelectrode detection time difference variabilities. Then the controller compares the computed detection time difference variability to a predetermined detection time difference variability threshold value to discriminate whether the sensed at least two cardiac signals have a coordinated or an uncoordinated cardiac rhythm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.