Method and apparatus for analyzing and editing ECG...

Details Method and apparatus for analyzing and editing ECG... Method and apparatus for analyzing and editing ECG...

2006-04-17

2010-10-12

Layno, Carl H. (Department: 3766)

Surgery

Diagnostic testing

Cardiovascular

C607S030000, C607S059000

Reexamination Certificate

active

07813792

ABSTRACT:
A method and apparatus for analyzing the QT interval characteristics of ECG signal data having a succession of waveforms produced by the beating of the heart. ECG signal data is obtained from a patient. The R-R interval and the QT intervals of the waveforms of the ECG signal data are determined. Waveforms of the ECG signal data having a stable heart rate are selected for use in determining the QT interval characteristics. Preferably, the waveforms selected are those having minimum R-R interval standard deviation and minimum R-R interval dispersion. The QT correction (QTc) is computed from the ECG signal data waveforms selected in the foregoing manner or on the basis of clinician editing. The R-R intervals, the QT intervals, and QTc for the heart beats of the selected waveforms are displayed for analysis and diagnosis purposes. The invention can also be used, in an analogous manner, to obtain and display other cardiac data from the ECG waveforms.

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Appendix A—ECG Interval Editor Option—30 pages.
QT Analysis Tool—pp. 1-2.
GB Search Report dated Aug. 13, 2007.
Translated Chinese Office Action issued Nov. 27, 2009.

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