Medtronic, Inc.

Irving J Sanchez

Xusheng Zhang

Saul E Greenhut

Michael W Heinks

Timothy A Ebeling

Jian L Cao

Paul R Solheim

Gerald P Arne

Troy Edward Jackson

Yuanzhen Liu

Alfonso Aranda Hernandez

Jean E Hudson

James Vander Heyden

A medical device is configured to receive cardiac electrical signals and sense ventricular event signals from the cardiac electrical signals. The medical device may start a validation window in response to sensing a ventricular event signal and determine if the ventricular event signal is a valid event signal or an invalid event signal based on processing of a different cardiac electrical signal than the cardiac electrical signal from which the ventricular event signal was sensed.

Medical device and method for cardiac pacing and sensing

An implantable medical device system capable of sensing cardiac electrical signals includes a sensing circuit, a therapy delivery circuit and a control circuit. The sensing circuit is configured to receive a cardiac electrical signal and sense a cardiac event in response to the signal crossing a cardiac event sensing threshold. The therapy delivery circuit is configured to deliver an electrical stimulation therapy to a patient's heart via the electrodes coupled to the implantable medical device. The control circuit is configured to control the sensing circuit to set a starting value of the cardiac event sensing threshold and hold the starting value constant for a sense delay interval. The control circuit is further configured to detect an arrhythmia based on cardiac events sensed by the sensing circuit and control the therapy delivery circuit to deliver the electrical stimulation therapy in response to detecting the arrhythmia.

Multi-threshold sensing of cardiac electrical signals in an extracardiovascular implantable cardioverter defibrillator

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Blaine, MN, United States of America

Irving J Sanchez