Method and apparatus for generating a composite farfield electrogram

US8060198B2 · kind B2 · utility

Assignee

• Biotronik CRM Patent AG · CH

Inventors

• Jie Lian · Nanjing, CN
• Garth Garner · Tigard, US
• Hannes Kraetschmer · West Linn, US
• Dirk Müssig · West Linn, US

Key dates

• Filing date: Aug 31, 2007
• Grant date: Nov 15, 2011
• Expiry date: Sep 14, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/368
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Method and apparatus that uses dual-chamber (RA-RV), three-chamber (BiA-RV, or RA-BiV), or four-chamber (BiA-BiV) implantable cardiac devices including pacemakers, defibrillators and cardioverters, which stimulate cardiac tissue electrically to control the patient's heart rhythm. The method and apparatus are further configured to create a far-field intra-atrial electrogram (AEGM) and a far-field intra-ventricular electrogram (VEGM) that are independently filtered, scaled, and then summed to form a composite far-field electrogram.