US PATENT SUBCLASS 600 / 517
.~.~.~.~.~ Vertical variation of PQRST signal waveform (e.g., amplitude of QRS complex, etc.) detected

Current as of: June, 1999
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600 /   HD   SURGERY

300  DF  DIAGNOSTIC TESTING {38}
481  DF  .~ Cardiovascular {6}
508  DF  .~.~ Heart {4}
509  DF  .~.~.~ Detecting heartbeat electric signal {10}
515  DF  .~.~.~.~ Detecting arrhythmia {3}
517.~.~.~.~.~ Vertical variation of PQRST signal waveform (e.g., amplitude of QRS complex, etc.) detected

DEFINITION

Classification: 600/517

Vertical variation of PQRST signal waveform (e.g., amplitude of QRS complex, etc.) detected:

(under subclass 515) Subject matter including means for detecting a variation in the height of a particular portion of the PQRST waveform which represents the heartbeat electric signal, height being measured from the base line between positive and negative portions of the waveform.