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. 03, 1999
Filed:
Nov. 21, 1997
Anne Bouhour, Ville D'Auray, FR;
Marcel Limousin, Montrouge, FR;
ELA Medical S.A., Montrouge, FR;
Abstract
An active implantable medical device, particularly of the cardiac pacemaker, defibrillator and/or cardiovertor type, having a function of dual chamber cardiac stimulation and a mode of fallback in which a mode of de-synchronisation of the ventricular stimulation occurs when the atrial rhythm exceeds an acceptable level, and a mode of progressive re-synchronisation occurs in the case of a return of the atrial rhythm to the acceptable level. The re-synchronisation is controlled in a conditional manner to be triggered and maintained only if (a) one detects no trouble of the atrial rhythm. In an alternate embodiment the re-synchronisation is triggered and maintained only if, in addition to condition (a): (b) one detects (20) the presence of an effective sinus rhythm. In another alternate embodiment, the re-synchronisation is triggered and maintained only if, in addition to conditions (a) and (b): (c) one determines that the duration between the end of the post-atrial atrial refractory period and the end of the atrial escape interval is at least equal to a predetermined duration during a number of successive cycles in the course of the re-synchronisation mode.