Heart sound sensing to reduce inappropriate tachyarrhythmia therapy

US8996101B2 · kind B2 · utility

Assignee

• Medtronic, Inc. · US

Inventors

• Xusheng Zhang · Shoreview, US
• Teresa A. Whitman · Dayton, US
• Paul J. DeGroot · Brooklyn Park, US
• Mark L. Brown · North Oaks, US
• Jeffrey M. Gillberg · Coon Rapids, US

Key dates

• Filing date: Apr 27, 2012
• Grant date: Mar 31, 2015
• Expiry date: Jan 26, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G16H50/20
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method and device for detecting a cardiac event that includes sensing cardiac electrical signals representative of electrical activity of a heart of a patient, detecting the cardiac event in response to the sensed cardiac signals, determining an indication of signal reliability corresponding to the sensed cardiac signals as being one of a reliable signal and a not reliable signal, and switching operation of the device between a first mode of determining whether the sensed signal is one of treatable and not treatable and a second mode of determining whether the sensed signal is one of treatable and not treatable in response to the determined indication of signal reliability.