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:
Nov. 22, 2011
Filed:
Jun. 12, 2006
David B. Krig, Brooklyn Park, MN (US);
Jesse W. Hartley, Lino Lakes, MN (US);
Wyatt Stahl, Vadnais Heights, MN (US);
Jeffrey E. Stahmann, Ramsey, MN (US);
David B. Krig, Brooklyn Park, MN (US);
Jesse W. Hartley, Lino Lakes, MN (US);
Wyatt Stahl, Vadnais Heights, MN (US);
Jeffrey E. Stahmann, Ramsey, MN (US);
Cardiac Pacemakers, Inc., St. Paul, MN (US);
Abstract
A cardiac rhythm management system is capable of treating irregular ventricular heart contractions, such as during atrial tachyarrhythmias such as atrial fibrillation. A first indicated pacing interval is computed based at least partially on a most recent V-V interval duration between ventricular beats and a previous value of the first indicated pacing interval. Pacing therapy is provided based on either the first indicated pacing interval or also based on a second indicated pacing interval, such as a sensor-indicated pacing interval. A weighted averager such as an infinite impulse response (IIR) filter adjusts the first indicated pacing interval for sensed beats and differently adjusts the first indicated pacing interval for paced beats. The system regularizes ventricular rhythms by pacing the ventricle, but inhibits pacing when the ventricular rhythms are stable.