Patent · US Expired

System and method of automatically determining the onsets and ends of cardiac events and far-field signals

US6650931B1 · kind B1 · utility

48Cited by

21References

14Claims

0Family size

Assignee

PACESETTER, INC. · US

Inventors

Kelly H. McClure · Simi Valley, US
Gene A. Bornzin · Simi Valley, US
Junyu Mai · Walnut Creek, US

Key dates

Filing date	Nov 14, 2001
Grant date	Nov 18, 2003
Priority date	—
Expiry date	Dec 12, 2021

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B5/7257
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A system and method for determining the onset and termination of cardiac events, such as the R-wave, the T-wave and the far-field signals sensed in the atria associated with the R-wave (FFR) and T-wave (FFT). The onset is defined as the time of the first sampled point of the cardiac signal whose magnitude exceeds a pre-defined threshold for the particular event. Once the onset of an event is positively determined, the cardiac signal is sampled at given intervals. The change in magnitude of these sampled points is determined. The termination of the event is identified through an algorithm that compares the difference in magnitude of these sampled points.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.