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:
Sep. 03, 2019
Filed:
Oct. 19, 2017
Biosense Webster (Israel) Ltd., Yokneam, IL;
Biosense Webster (Israel) Ltd., Yokneam, IL;
Abstract
A processor is configured to construct a baseline impedance model (BIM) that models a portion of a heart of a subject as a collection of three-dimensional cells, each of which corresponds to a respective volume within the heart, at least some of the cells being designated as baseline-impedance cells, for each of which the BIM specifies a respective baseline impedance, to ascertain, based on a signal received via an electrical interface, an impedance between a catheter electrode, which is within the heart, and an external electrode that is externally coupled to the subject, to identify one of the baseline-impedance cells as a reference cell, to ascertain that the catheter electrode is within a threshold distance of tissue of the heart, by comparing the ascertained impedance to the baseline impedance that is specified for the reference cell, and to update a map of the tissue in response to the ascertaining.