Method and circuit for detecting cardiac rhythm...

Surgery – Diagnostic testing – Cardiovascular

Reexamination Certificate

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C600S518000, C128S923000

Reexamination Certificate

active

06950696

ABSTRACT:
A circuit and method for detecting cardiac rhythm abnormalities employ unipolar signals respectively obtained from a cardiac lead having a tip at which a number of separate electrodes are disposed, the electrodes being simultaneously in contact with cardiac tissue. The respective unipolar signals which are obtained from the multiple electrodes exhibit a time relationship relative to each other, and this time relationship is analyzed to determine whether a cardiac rhythm abnormality is present or one or more of the unipolar signals is compared to a template which is known to represent a cardiac abnormality. Analysis of the time relation is undertaken by determining the absolute value of a time offset between any two of the unipolar signals, or by correlating any two of the unipolar signals.

REFERENCES:
patent: 4354497 (1982-10-01), Kahn
patent: 4754753 (1988-07-01), King
patent: 4913146 (1990-04-01), DeCote, Jr.
patent: 4955382 (1990-09-01), Franz et al.
patent: 5158092 (1992-10-01), Glace
patent: 5193535 (1993-03-01), Bardy et al.
patent: 5273049 (1993-12-01), Steinhaus et al.
patent: 5306292 (1994-04-01), Lindegren
patent: 5366487 (1994-11-01), Adams et al.
patent: 5385146 (1995-01-01), Goldreyer
patent: 5433198 (1995-07-01), Desai
patent: 5836875 (1998-11-01), Webster, Jr.
patent: 6064905 (2000-05-01), Webster et al.
patent: 6152882 (2000-11-01), Prutchi
patent: 6266554 (2001-07-01), Hsu et al.
patent: 6308095 (2001-10-01), Hsu et al.
patent: 6574492 (2003-06-01), Ben-Haim et al.
patent: 0 571 797 (1993-12-01), None
patent: WO97/12548 (1997-04-01), None

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