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. 20, 2006
Filed:
Sep. 03, 2002
Michael Frank Mlynski, Aachen, DE;
Bjorn Henrik Diem, Aachen, DE;
Walter Ameling, Aachen, DE;
Peter Hanrath, Aachen, DE;
Michael Frank Mlynski, Aachen, DE;
Bjorn Henrik Diem, Aachen, DE;
Walter Ameling, Aachen, DE;
Peter Hanrath, Aachen, DE;
Abstract
A rate-adaptive cardiac pacemaker has a detection unit, an event-determining unit, a stimulation control unitand a stimulation unit, wherein the event-determining unitis connected to the detection unitand the stimulation control unit, and the stimulation unitis connected to the stimulation control unit. The detection unitdetects ECG signals of a heart, and the event-determining unit, on the basis of the ECG signals detected by the detection unitand signals emitted by the stimulation control unit, determines whether a detected event represents a spontaneous or a stimulated event (A, A; AES, V, V, VES). The stimulation control unitascertains a stimulation rate based upon a base rate and a physiological demand and varies the base rate based upon the event-determining unitin a first mode, when atrial events occur in such a way that in the case of a spontaneous atrial event a spontaneous interval is prolonged by a first change value and that in the case of a stimulated atrial event a base interval is prolonged by a second change value, whereby in both cases the base rate is lowered, and in a second mode, when ventricular events occur, the stimulation control unitvaries the base rate in such a way that in the case of a spontaneous ventricular event the base rate is raised and in the case of a stimulated ventricular event the base rate is lowered. The stimulation unit stimulates the heart in accordance with the signals received from the stimulation control unit