Medtronic, Inc.

Cameron J Kaszas

Paul Gordon Krause

Karen J Kleckner

Vinod Sharma

Walter H Olson

Kevin T Ousdigian

Paul J DeGroot

Michael T Hemming

Steven N Lu

David E Ritscher

Vasant Padmanabhan

John M Kruse

C Gary Nelson

Steven Ning Lu

An implantable medical device and associated method monitor a physiological signal for sensing physiological events and detecting a physiological condition in response to the sensed physiological events. The device senses a first event from the physiological signal, senses a noise signal in the physiological signal and senses a next event from the physiological signal wherein the first event and the next event define a signal interval. The signal interval is declared as a noisy interval in response to the sensed noise signal.

Method and apparatus for detecting noise in an implantable medical device

A system and method for treating an arrhythmia of the heart, involves delivery of anti-tachy pacing (ATP) pulses to the heart, possibly followed by the delivery of a high-voltage shock. ATP delivery is controlled such that the time delivery of any high-voltage shock is not affected by the prior delivery of the ATP pulses. System control may be accomplished using one or more programmable parameters, which may include a user-specified shock energy.

Combined anti-tachycardia pacing (ATP) and high voltage therapy for treating ventricular arrhythmias

A system including a process for enhancing detection of a pacing artifact in a patient having artificially paced myocardial contractions. The detection is accomplished by sensing seven EKG leads. Each lead provides a view of the heart from a different angle. The process relies on differentially amplifying the sensed pulses separately and passing the pulses through a filter. An algorithm is utilized to detect the noise level and the pacing artifact amplitude, and automatically select a proper trigger level. False pacing artifacts are eliminated by use of the software qualification. The principal is that if the hardware differentiator produces a signal due to noise or a pacing artifact, an interrupt is generated.

Heart pacing pulse detection system

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Minneapolis, MN, United States of America

Cameron J Kaszas