Multi-threshold sensing of cardiac electrical signals in an implantable medical device

US10799710B2 · kind B2 · utility

Assignee

• Medtronic, Inc. · US

Inventors

• Jian Cao · Shoreview, US
• Gerald P. Arne · Orr, US
• Timothy A. Ebeling · Circle Pines, US
• Yanina Grinberg · Plymouth, US
• Michael W. Heinks · New Brighton, US
• Paul R. Solheim · Blaine, US
• Xusheng Zhang · Shoreview, US

Key dates

• Filing date: Oct 23, 2017
• Grant date: Oct 13, 2020
• Expiry date: Apr 28, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3987
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An implantable medical device system is configured to sense cardiac events in response to a cardiac electrical signal crossing a cardiac event sensing threshold. A control circuit is configured to determine a drop time interval based on a heart rate and control a sensing circuit to hold the cardiac event sensing threshold at a threshold value during the drop time interval.