Method for tachyarrhythmia detection
US5558097A · kind A · utility
23Cited by
11References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1994 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Aug 9, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3702
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for optimizing the sensing circuit of a tachyarrhythmia detector for use with direct heart (cardiac) electrodes. The method is applied to detection of ventricular fibrillation and multifocal ventricular tachyarrhythmia, with rejection of T wave and pacing artifact. The sensing circuit optimized with this method includes a third-order high-pass filter followed by at least one comparator, with the filter corner frequency near 16 Hz and the comparator threshold near 0.40 mV referred to the input, in-band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.