Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Reexamination Certificate
2006-08-01
2006-08-01
Getzow, Scott M. (Department: 3762)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
Reexamination Certificate
active
07085603
ABSTRACT:
A system and corresponding method are provided to reliably detect capture during multi-chamber stimulation, and to further monitor the progression of congestive heart failure. The system provides a method by which intracardiac electrogram (IEGM) characteristics representing single-chamber capture and bi-ventricular capture are stored in memory and displayed. The annotation of the displayed waveforms is such that events associated with loss of capture, single-chamber capture, and bi-ventricular capture are clearly marked for ready interpretation by the physician. In a first situation, a stimulation pulse is followed by a time delay window and a subsequent depolarization complex that represents intrinsic responses of the chambers that have not been captured. In a second situation, a stimulation pulse is followed almost immediately by an evoked response that represents capture of one chamber, and a subsequent depolarization complex that represents an intrinsic response of one chamber that has not been captured. In a third situation, a stimulation pulse is almost immediately followed by an evoked response that represents simultaneous capture of two chambers.
REFERENCES:
patent: 6512953 (2003-01-01), Florio et al.
Bornzin Gene A.
Bradley Kerry
Florio Joseph J.
Park Euljoon
Getzow Scott M.
Pacesetter Inc.
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