Surgery – Diagnostic testing – Cardiovascular
Reexamination Certificate
2007-09-19
2010-11-02
Layno, Carl H (Department: 3766)
Surgery
Diagnostic testing
Cardiovascular
C600S374000, C600S424000, C607S001000, C607S070000, C607S074000, C607S115000, C607S116000, C607S118000
Reexamination Certificate
active
07824341
ABSTRACT:
A method of identifying the fossa ovalis in a patient by positioning one or more electrodes against the tissue of the interatrial septum of the patient and acquiring unipolar and/or bipolar electrograms of the tissue of the interatrial septum while moving the electrodes to a plurality of positions against the tissue of the interatrial septum. The fossa ovalis is identified on the basis of unipolar voltage reduction, signal fractionation, broadened signal, reduced signal slew rate, reduced local myocardial impedance, increased phase angle and/or increased pacing threshold. An apparatus for identify the fossa ovalis is also provided.
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Layno Carl H
Malamud Deborah
St. Jude Medical, Atrial Fibrillation Division, Inc.
Wiley & Rein LLP
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