Implantable bi-ventricular stimulation device and system, and bi-ventricular stimulation and sensing method

US6961613B2 · kind B2 · utility

Assignee

• ST. JUDE MEDICAL AB · SE

Inventors

• Anders Bjorling · Järfälla, SE
• Nils Holmstrom · Järfälla, SE
• Sven-Erik Hedberg · Kungsängen, SE
• Asa Uhrenius · Stockholm, SE

Key dates

• Filing date: Nov 13, 2003
• Grant date: Nov 1, 2005
• Expiry date: Nov 24, 2023

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3684
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An implantable bi-ventricular heart stimulating device has a control circuit that within a time cycle, delivers pacing pulses with both first and second pacing circuits with a time gap between a pacing pulse delivered by these pacing circuits. The time gap can be such that a pacing pulse delivered by the second pacing circuits falls substantially within a first time interval in which an evoked response can be expected to a pacing pulse delivered by the first pacing circuit. The control circuit performs a temporary modification of the operation of the device such that during at least one time cycle no pacing pulse is delivered by the second pacing circuit during the first time interval.