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:
Dec. 20, 1994
Filed:
Jan. 06, 1994
Karel den Dulk, WV Maastricht, NL;
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A dual chamber pacemaker is provided, preferably either DDDR or DDIR, having logic hardware and/or software for normally carrying out the DDIR or DDDR mode of operation, and further having means for avoiding delivery of an atrial pace pulse in circumstances where normal atrial pacing could otherwise be competitive or result in loss of atrial capture. The pacemaker has means for detecting an atrial sense during PVARP, timing out a delay from the time of the early atrial sense, and inhibiting delivery of an atrial pulse during the delay. In a preferred embodiment, the ventricular rate, which may be established by a rate responsive sensor, is maintained, while atrial sync pulses are delivered whenever possible following an early atrial sense so as to provide synchronous pacing whenever that is consistent with safe atrial pacing and substantial regularity of the ventricular pacing.