Invention Grant
- Patent Title: Cardiac electrical signal gross morphology-based noise detection for rejection of ventricular tachyarrhythmia detection
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Application No.: US15653969Application Date: 2017-07-19
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Publication No.: US10561332B2Publication Date: 2020-02-18
- Inventor: Xusheng Zhang , Jian Cao , Saul E. Greenhut
- Applicant: Medtronic, Inc.
- Applicant Address: US MN Minneapolis
- Assignee: Medtronic, Inc.
- Current Assignee: Medtronic, Inc.
- Current Assignee Address: US MN Minneapolis
- Main IPC: A61B5/0464
- IPC: A61B5/0464 ; A61B5/021 ; A61B5/04 ; A61B5/00 ; A61N1/39 ; A61B5/0452 ; A61B5/0245 ; A61N1/37 ; H03H21/00

Abstract:
A medical device system, such as an extra-cardiovascular implantable cardioverter defibrillator ICD, senses R-waves from a first cardiac electrical signal by a first sensing channel and stores a time segment of a second cardiac electrical signal in response to each sensed R-wave. The medical device system determines a morphology parameter correlated to signal noise from time segments of the second cardiac electrical signal, detects a noisy signal segment based on the signal morphology parameter; and withholds detection of a tachyarrhythmia episode in response to detecting a threshold number of noisy signal segments.
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