Methods and implantable medical devices for automatic entry to an exposure mode of operation upon exposure to a magnetic disturbance

US11628298B2 · kind B2 · utility

Assignee

• Medtronic, Inc. · US

Inventors

• Hyun J. Yoon · Vadnais Heights, US
• Michael L. Ellingson · St. Louis Park, US
• Wade M. Demmer · Coon Rapids, US
• Jonathan D. Edmonson · Blaine, US
• Matthew J. Hoffman · Windom, US
• Ben W. Herberg · Andover, US
• James D. Reinke · Maple Grove, US
• Todd J. Sheldon · North Oaks, US
• Paul R. Solheim · Blaine, US
• Alison M. Seacord · Minneapolis, US

Key dates

• Filing date: May 13, 2019
• Grant date: Apr 18, 2023
• Expiry date: Jan 1, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3931
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Implantable medical devices automatically switch from a normal mode of operation to an exposure mode of operation and back to the normal mode of operation. The implantable medical devices may utilize hysteresis timers in order to determine if entry and/or exit criteria for the exposure mode are met. The implantable medical devices may utilize additional considerations for entry to the exposure mode such as a confirmation counter or a moving buffer of sensor values. The implantable medical devices may utilize additional considerations for exiting the exposure mode of operation and returning to the normal mode, such as total time in the exposure mode, patient position, and high voltage source charge time in the case of devices with defibrillation capabilities.