Methods and apparatus for R-wave detection

Details Methods and apparatus for R-wave detection Methods and apparatus for R-wave detection

1999-10-26

2000-12-12

Getzow, Scott M.

Surgery

Diagnostic testing

Cardiovascular

A61B 504

Patent

active

061610372

ABSTRACT:
Apparatus and methods for determining the precise times of occurrence of R-waves in an ECG signal of a patient. Samples of the patient's ECG signal are accumulated and an ECG window comprising a predetermined number of the samples is defined. In accordance with one embodiment of the invention, the patient's blood pressure signal is processed to detect systoles and the ECG window has a predetermined time relationship to detected systoles. In accordance with an alternative embodiment, the ECG signal is first processed to approximate the times of occurrence of R-waves and the ECG window is defined to have a predetermined time relationship to the approximated R-wave times. ECG signal samples within the ECG window are processed to determine a maximum and the time of occurrence of the maximum is stored as the time of an R-wave event.

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