Cardiac Pacemakers, Inc.

Kenneth L Baker

David J Ternes

Jeffrey E Stahmann

Andrew P Kramer

David L Perschbacher

Rodney W Salo

Lawrence S Baumann

Jesse W Hartley

Yinghong Yu

Krzysztof Z Siejko

Quan Ni

James O Gilkerson

Kent Lee

James Kalgren

Stephen B Ruble

Jason J Hamann

Rene H Wentkowski

Gary Thomas Seim

David B Krig

Doug M Birkholz

Ankur Garg

Kenneth Tobacman

Michael A Querimit

Corey J Miklos

Gerrard Merrill Carlson

A system embodiment comprises a neural stimulator having a housing with an electrode on the housing and having a neural stimulation lead with an electrode on the neural stimulation lead. The neural stimulator is configured to deliver a neural stimulation therapy through the neural stimulation lead and remotely sense a heart rate using the electrode on the neural stimulation lead and the electrode on the housing of the neural stimulator.

Remote detection of physiological parameter using an implantable medical device

A system embodiment for stimulating a neural target comprises a neural stimulator, a pace detector, and a controller. The neural stimulator is electrically connected to at least one electrode, and is configured to deliver a neural stimulation signal through the at least one electrode to stimulate the neural target. The pace detector is configured to use at least one electrode to sense cardiac activity and distinguish paced cardiac activity in the sensed cardiac activity from non-paced cardiac activity in the sensed cardiac activity. The controller is configured to control a programmed neural stimulation therapy using the neural stimulator and using detected paced cardiac activity as an input for the neural stimulation therapy.

Various method embodiments detect a concurrent therapy, where the concurrent therapy includes a plurality of therapy pulses. Detecting the concurrent therapy includes detecting at least one electrical pulse, extracting at least one characteristic from the at least one electrical pulse, comparing the at least one characteristic of the detected pulse to at least one characteristic of therapy pulses, and detecting that the concurrent therapy is being applied if the at least one characteristic of the detected pulse favorably compares to the at least one characteristic of the therapy pulses.

Concurrent therapy detection in implantable medical devices

Remote pace detection in an implantable medical device

Biventricular-triggered pacing is a pacing mode that can employ in cardiac resynchronization pacing at elevated heart rates. Described herein are methods and devices for implementing biventricular pacing in the context of multi-site left ventricular pacing.

Biventricular-triggered pacing in the context of multi-site left ventricular pacing

Methods and systems are directed to delivering cardiac pacing therapy to a patient. A pacing therapy associated with one or more pacing parameters is delivered. Alternate cardiac pacing therapies associated with one or more alternate pacing parameters are transitioned to, based on a sleep/wake cycle of the patient. Interactions between the pacing parameters of the pacing therapy and the alternate pacing parameters are resolved. Resolving pacing parameters may be based on analysis of lower rate limits and/or lower rate hysteresis, for example.

Methods and devices for implementing time of day pacing adjustments

A method of optimizing inter-site delay is disclosed for a cardiac rhythm management device that includes a dual chamber pacemaker, especially designed for treating congestive heart failure by pacing a plurality of sites. A microcontroller is operative to adjust the pacing mode and inter-site delay of the pacemaker so as to achieve optimum hemodynamic performance. Atrial cycle lengths measured during transient (immediate) time intervals following a change in the mode inter-site delay are signal processed and a determination can then be made as to which particular configuration yields the optimum performance. Performance is optimized when the patient is at rest and when the patient exercises so that a rate-adapted dynamic value of the optimum performance can be applied.

Cardiac rhythm management system with optimization of cardiac performance using heart rate

This document discusses, among other things, an apparatus comprising an atrial sensing circuit, a ventricular sensing circuit and an atrioventricular (AV) delay adjustment circuit. The atrial sensing circuit detects a first fast atrial pace that concludes a timing interval that is shorter than or equal to a first threshold value. The ventricular sensing circuit detects a first condition that comprises a sensed intrinsic first fast ventricular contraction that occurs within a specified first period of a most recently detected first fast atrial pace. The fast ventricular contraction concludes a timing interval that is shorter than or equal to a second threshold value. The AV delay adjustment circuit attempts to decrease an AV delay at least in part in response to detecting the first condition. Other apparatuses and methods are disclosed.

Atrioventricular delay adjustment enhancing ventricular tachyarrhythmia detection

A device and method for improving tachyarrhythmia detection when the ventricles are resynchronized by delivering paces to both ventricles separated by a specified offset interval. Timing of escape intervals and tachyarrhythmia detection is based upon senses from one of the ventricles designated as a rate ventricle. A reversion pacing mode is provided in order to prevent tachyarrhythmia detection from being compromised when the rate ventricle is paced after the other ventricle.

Reduction of left-ventricular offset interaction with tachyarrhythmia detection

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Shoreview, MN, United States of America

Kenneth L Baker