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:
Aug. 31, 2021
Filed:
Mar. 06, 2019
St. Jude Medical, Cardiology Division, Inc., St. Paul, MN (US);
Jatin Surendra Relan, Bordeaux, FR;
St, Jude Medical, Cardiology Division, Inc., St. Paul, MN (US);
Abstract
QRS activity duration may be indicative of cardiac tissue health. Accordingly, maps of QRS activity duration may be beneficial to practitioners. To this end, an electroanatomical mapping system can receive an electrogram signal and analyze it by transforming it into the wavelet domain, computing an energy function of the resultant scalogram, and computing QRS activity duration using the energy function. A graphical representation of the QRS activity duration can be output, for example on a three-dimensional cardiac model. Areas of diseased substrate can be identified on the output; in some aspects of the disclosure, diseased substrate corresponds to areas where the QRS activity duration exceeds a preset threshold, such as about 70 ms.