Brady pause detection for implantable cardiac monitors

US10646131B2 · kind B2 · utility

Assignee

• Cardiac Pacemakers, Inc. · US

Inventors

• Krzysztof Z. Siejko · Maple Grove, US
• Derek D. Bohn · Woodbury, US
• David L. Perschbacher · Coon Rapids, US
• Adam MacEwen · White Bear Lake, US
• Sunipa Saha · Shoreview, US
• Keith L. Herrmann · Minneapolis, US

Key dates

• Filing date: Sep 7, 2017
• Grant date: May 12, 2020
• Expiry date: Apr 18, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G16H40/67
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An apparatus includes a cardiac signal sensing circuit configured to generate a sensed cardiac signal representative of electrical cardiac activity of a subject, a buffer memory and a pause detection circuit. The pause detection circuit is configured to: identify ventricular depolarization in the cardiac signal or the sampled cardiac signal; detect a candidate pause episode using the cardiac signal in which delay in ventricular depolarization exceeds a specified delay threshold; identify noise events in a stored cardiac signal; and discard the cardiac signal of the candidate pause episode when a number of noise events satisfies a specified noise event number threshold, otherwise store the cardiac signal of the candidate pause episode as a bradycardia pause episode.