Preferred ADI/R: a permanent pacing mode to eliminate ventricular pacing while maintaining back support

US7130683B2 · kind B2 · utility

Assignee

• Medtronic, Inc. · US

Inventors

• David A. Casavant · Reading, US
• Paul A. Belk · Maple Grove, US
• Thomas J. Mullen · Andover, US
• John C. Stroebel · Blaine, US

Key dates

• Filing date: Sep 17, 2002
• Grant date: Oct 31, 2006
• Expiry date: Dec 30, 2023

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3688
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A preferred atrial-based pacing method and apparatus is provided using an intelligent cardiac pacing system to having the ability to continue atrial-based pacing as long as relatively reliable AV conduction is present. In the event that such relatively reliable AV conduction is not present, mode switching to a DDD/R or a DDI/R pacing mode while continually biased to mode switch back to atrial-based pacing. The standard or relatively reliable AV conduction may be changed either automatically or manually. This increases pacing that utilizes natural AV conduction whenever possible so as to gain all the benefits of cardiac contractile properties resulting therefrom, while tolerating the occasional missed ventricular depolarization (i.e., non-conducted P-wave). In the event where relatively reliable AV conduction is not present, the pacing mode is switched to a DDD/R mode while detecting a return of the relatively reliable AV conduction (and resulting mode switch to preferred atrial-based pacing).