EGM signal acquisition and processing system
AssigneeMedtronic, Ind.
InventorsKent Samuelson, Michael T. Hemming, Michael W. Heinks, Ross O. Starkson, Lori Durose-Schrimpf, John D. Wahlstrand
Life of this patent
Estimating the term…
Abstract
A system and method for acquiring and processing an EGM signal during a pacing event, wherein a unique converter code is generated upon digitizing of the EGM signal and encrypted in the EGM signal to demarcate a transient event. The system further provides dynamic filtering of the EGM signal and subsequent detection of an intrinsic event signal during the pacing event, from which rhythm events may be diagnosed and classified.
Claims9
An EGM signal acquisition and processing system, comprising:
- a means for acquiring an EGM signal during a pacing event;
- an analog-to-digital converter capable of converting the EGM signal from an analog to a digital form;
- a means for generating an unique code;
- and
- a digital EGM signal encrypted with the unique code, the unique code demarcating a transient event.
A method for EGM signal acquisition and processing, comprising:
- acquiring an EGM signal during a pacing event;
- using a non-linear element to limit saturation of standard amplifying and filtering operations by voltage excursions caused by large transients in the EGM signal acquired during the pacing event;
- dynamically filtering the EGM signal acquired during the pacing event;
- digitizing the EGM signal acquired during the pacing event;
- generating an unique code;
- encrypting the digital EGM signal with the unique code;
- and
- detecting an intrinsic event signal within the dynamically filtered and digitized EGM signal.
Dependencies are inferred from the claim text.