Surgery – Diagnostic testing – Cardiovascular
Reexamination Certificate
2006-01-10
2006-01-10
Getzow, Scott M. (Department: 3762)
Surgery
Diagnostic testing
Cardiovascular
C600S513000
Reexamination Certificate
active
06985768
ABSTRACT:
In general, the invention is directed to techniques for electrically detecting physiological events. The physiological events may include cardiac events such as R waves or p waves. In addition, the physiological events may include respiratory events. In general, the techniques involve converting an analog physiological signal to a digital delta value, correlating the digital delta value with a correlation template, and detecting a physiological event based on an output of the correlation. A digital correlation-based technique, as described herein, is implemented to reliably detecting physiological events, particularly for very small signals captured in the presence of significant background noise.
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Hamilton John R.
Hansen Daniel L.
Hemming Michael T.
Samuelson Kent
Getzow Scott M.
Medtronic Inc.
Soldner Michael C.
Wolde-Michael Girma
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