System and method for ventricular pacing with AV interval modulation

US7738955B2 · kind B2 · utility

Assignee

• Medtronic, Inc. · US

Inventors

• Michael O. Sweeney · Sharon, US
• David A. Casavant · Reading, US
• Robert A. Betzold · Fridley, US
• Paul A. Belk · Maple Grove, US
• Thomas J. Mullen · Andover, US
• John C. Stroebel · Blaine, US

Key dates

• Filing date: Apr 27, 2005
• Grant date: Jun 15, 2010
• Expiry date: Jan 2, 2028

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3682
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A pacing protocol is provided that reduces or minimizes ventricular pacing in favor of intrinsic conduction. When operating in a mode that provides ventricular pacing, a series of conduction checks are performed to determine if intrinsic conduction has returned. These conduction checks occur according to a predetermined pattern that generally includes longer intervals between subsequent attempts. The AV interval provided for dual chamber based pacing is modulated and generally moves from a larger value to a nominal value as the interval between unsuccessful conduction checks increases.