Patent ID: 7894900
Filing Date: 2011-02-22
Classification: A61B,A61N

Abstract:
1. A device for monitoring a cardiac pacing rate, the device comprising: a measuring unit adapted for interaction with a subject for obtaining an electrical signal representing cardiac demand of said subject; and a computing unit supplied with said signal for determining a relation between an energy supplied to a myocardium and an energy consumed by the myocardium, and calculating a maximum pacing rate from said relation so that said maximum pacing rate corresponds to a myocardial energy balance where said energy supplied to the myocardium equals to said energy consumed by the myocardium for both an external dynamic work for pumping blood into a vascular system, and an internal static work of the myocardium, wherein a ratio of a diastolic pressure and a systolic pressure is calculated and said ratio is used to calculate said energy consumed by the myocardium.