Self-calibrating rate-adaptive pacemaker

US6823214B1 · kind B1 · utility

Assignee

• Cardiac Pacemakers, Inc. · US

Inventors

• Weimin Sun · Thousand Oaks, US
• Bruce R. Jones · Hopkins, US
• Douglas J. Lang · Arden Hills, US
• Donald L. Hopper · Maple Grove, US

Key dates

• Filing date: Sep 8, 2000
• Grant date: Nov 23, 2004
• Expiry date: May 17, 2022

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/36585
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A system and method for automatically adjusting the operating parameters of a rate-adaptive cardiac pacemaker. In accordance with the method, maximum exertion levels attained by the patient are measured at periodic intervals and stored. The stored maximum exertion levels may then be used to update a long-term maximal exertion level, and the slope of the rate-response curve is adjusted to map the updated long-term maximal exertion level to a maximum allowable pacing rate. The stored maximum exertion levels may also be used to update a sensor target rate which is used to adjust the slope of the rate response curve.