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. 07, 1994
Filed:
Dec. 24, 1991
ELA Medical, Montrouge, FR;
Abstract
A cardiac pacemaker that is programmable to have one of a DDD and an AAI pacing mode of operation such that the pacing mode best suited to the patient's physiological condition is selected and implemented. The heart is paced in the AAI mode during periods of atrio-ventricular conduction. It automatically switches to pacing the heart in the DDD mode in response to a lack of atrio-ventricular conduction, and automatically switches back to the AAI mode after occurrence of a restoration event including restoration of atrio-ventricular conduction. Time delays for use in the DDD mode are calculated during operation in the AAI mode prior to loss of atrio-ventricular conduction and other timing delays for monitoring the patient's current physiological condition for mode switching are calculated.