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:
Mar. 07, 1995
Filed:
Sep. 09, 1993
Anders Lindgren, Taeby, SE;
Per Franberg, Stockholm, SE;
Siemens Elema AB, Solna, SE;
Abstract
A heart stimulator is disclosed which is capable of sensing and stimulating both the atrium and ventricle in a heart such a way that a ventricular stimulation pulse is emitted either after a stimulated or spontaneous atrial event following the atrioventricular interval, or after the expiration of a minimum synchronous interval following a stimulated or spontaneous ventricular event, depending on which interval elapses last. The functioning of the heart stimulator, when the atrium's spontaneous rate is faster than a stimulation rate corresponding to the minimum synchronous interval, is improved by delivering an extra atrial stimulation pulse at a second predetermined atrioventricular interval before the next ventricular stimulation pulse, if the interval between the most recently detected atrial event and the next ventricular stimulation pulse exceeds a predetermined threshold value.