Surgery – Diagnostic testing – Cardiovascular
Reexamination Certificate
2006-10-31
2006-10-31
Pezzuto, Robert (Department: 3766)
Surgery
Diagnostic testing
Cardiovascular
C607S004000, C607S005000
Reexamination Certificate
active
07130677
ABSTRACT:
Methods and apparatus are provided for discriminating high rate polymorphic QRS complexes from high rate monomorphic QRS complexes to increase the specificity of detection of polymorphic VT and VF employing wavelet transform signal processing of the QRS complexes are disclosed. Wavelet transforms are applied to the sampled amplitude values of a sequence of QRS complexes to develop wavelet transform coefficient (WTC) data sets. At least selected ones of the WTC data sets are processed and comparisons are made to determine a wavelet match score. A determination is made as a function of the wavelet match scores of the series of successive QRS complexes that characterizes the most recent QRS complex as more or less likely to signify polymorphic VT or VF.
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Brown Mark L.
Sarkar Shantanu
Lee Yun Haeng
Medtronic Inc.
Pezzuto Robert
Soldner Michael C.
Wolde-Michael Girma
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