Implantable device with bias for MRI

US8958877B2 · kind B2 · utility

Assignee

• Cardiac Pacemakers, Inc. · US

Inventors

• Nicholas J. Stessman · Minneapolis, US
• Michael J. Lyden · Shoreview, US
• Thomas M. Bocek · Seattle, US
• William J. Linder · Golden Valley, US
• Joseph M. Bocek · Seattle, US

Key dates

• Filing date: Jun 10, 2014
• Grant date: Feb 17, 2015
• Expiry date: Jun 10, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3718
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An ambulatory or implantable device, such as a pacer, defibrillator, or other cardiac rhythm management device, can tolerate magnetic resonance imaging (MRI) or other noise without turning on an integrated circuit diode by selectively providing a bias voltage that can overcome an expected induced voltage resulting from the MRI or other noise.