Noise canceling cardiac electrodes

US7499750B2 · kind B2 · utility

Assignee

• Cardiac Pacemakers, Inc. · US

Inventors

• Paul A. Haefner · Circle Pines, US
• Darrell Wagner · Isanti, US
• Jason Alan Shiroff · Edina, US
• Marina Brockway · Shoreview, US
• Apurv Ullas Kamath · San Diego, US

Key dates

• Filing date: Dec 17, 2003
• Grant date: Mar 3, 2009
• Expiry date: Sep 17, 2025

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/36542
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Implementing a subcutaneous medical electrode system involves positioning a number of electrode subsystems in relation to a heart so that noise cancellation provides an improved signal to noise ratio of the cardiac signal and/or to provide one electrode arrangement preferential for cardiac signals and another arrangement preferential for noise signals. One of the electrode subsystems so positioned may include one or more can electrodes located on a housing enclosing a medical device. The medical device may be configured to provide therapeutic, diagnostic, or monitoring functions, including, for example, cardiac arrhythmia therapy.