The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 2021
Filed:
Jul. 17, 2019
Biosense Webster (Israel) Ltd., Yokneam, IL;
BIOSENSE WEBSTER (ISRAEL) LTD., Yokneam, IL;
Abstract
A method, including receiving a bipolar ECG signal from a location in the heart from the pair of electrodes, receiving a unipolar ECG signal from the location in the heart from a selected one electrode of the pair of electrodes, computing a local unipolar minimum derivative of the unipolar signal at a plurality of times of occurrences of the local unipolar minimum derivative, computing a bipolar derivative of the bipolar signal, evaluating a ratio of the bipolar derivative to the local unipolar minimum derivative at the plurality of times of occurrences of the local unipolar minimum derivative, annotating each time of occurrence as a time of activation of the myocardium at the location in the heart when the ratio is greater than a preset threshold value, merging two annotations that arise from a single occurrence as a single annotation, evaluating features of the annotations and assigning a confidence level to each feature, eliminating annotations that have a confidence level below a threshold and generating a local activation time map using the remaining annotations.