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. 31, 2007
Filed:
Sep. 16, 2003
Christine Henry, Paris, FR;
Laurence Graindorge, Chatenay Malabry, FR;
Christine Henry, Paris, FR;
Laurence Graindorge, Chatenay Malabry, FR;
ELA Medical S.A.S., Montrouge, FR;
Abstract
An active implantable medical device of the defibrillator, cardiovertor and/or antitachycardia pacemaker type having a high maximum frequency for antibradycardia stimulation. This device provides antibradycardia stimulation at a stimulation frequency that has a programmed maximum stimulation frequency. For a detected rate exceeding a given frequency threshold, the device analyzes the cardiac activity to discriminate a ventricular tachycardia or fibrillation to command in consequence an appropriate antitachycardia therapy. The maximum stimulation frequency for antibradycardia is higher than the given frequency threshold for the antitachycardia analysis, and the cardiac rhythm is analyzed to detect a particular succession of events that are likely to reveal the presence or the appearance of a ventricular tachycardia during such high antibradycardia stimulation. In this case, the duration of the ventriculo-atrial delay of stimulation is prolonged at least until the end of the calculated escape interval, and until the end of the programmed maximum interval of detection of ventricular tachycardia. This accommodates an antibradycardia stimulation at a rate greater than the frequency threshold used to suspect or declare an antitachycardia while enabling detection of the latter.