Systems and methods for detecting far-field oversensing based on signals sensed by the proximal electrode of a multipolar LV lead

US8538524B2 · kind B2 · utility

Assignee

• PACESETTER, INC. · US

Inventors

• Stuart Rosenberg · Santa Clarita, US
• Tomas Svensson · Bunkeflo, SE
• Kjell Noren · Solna, SE
• Edward Karst · Los Angeles, US
• Kyungmoo Ryu · Palmdale, US

Key dates

• Filing date: Sep 12, 2011
• Grant date: Sep 17, 2013
• Expiry date: Jun 5, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/36842
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A device senses cardioelectrical signals using a right atrial (RA) lead, which might include far-field R-waves as well as near-field P-waves. The device concurrently senses events using a proximal electrode of an LV lead, which can sense both P-waves and R-waves as substantially near-field events. Suitable templates are then applied to the signals sensed via the proximal LV electrode to identify the origin of the signals (e.g. atrial vs. ventricular) so as to properly classify the corresponding events sensed in the RA as near-field or far-field events. In this manner, far-field oversensing is conveniently detected.