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:
Jun. 28, 2005
Filed:
Oct. 03, 2000
Martin Obel, Danderyd, SE;
Berit Larsson, Danderyd, SE;
Martin Obel, Danderyd, SE;
Berit Larsson, Danderyd, SE;
St. Jude Medical AB, Jaerfaella, SE;
Abstract
The invention relates to an implantable dual chamber heart stimulator comprising a stimulation threshold detector arranged to activate a stimulation threshold search algorithm to perform a stimulation threshold search at predetermined time intervals in order to determine a stimulation threshold of heart tissue. The heart stimulator comprises an AV-interval generator adapted to generate an AV-interval and a controller arranged to temporarily shorten the AV-interval to a threshold search AV-interval when this threshold search is performed. The heart stimulator further comprises AR/PR-interval measure adapted to measure the actual AR/PR conduction time in which this threshold search AV-interval is set by the AV-interval generator and the controller to the measured AR/PR-interval shortened by a predetermined time.