Patent ID: 6885892
Filing Date: 2005-04-26
Classification: A61N

Abstract:
1. A rate adaptive pacemaker comprising: a measuring unit adapted for interaction with a patient for determining a demand; a pacing rate controller connected to said measuring unit for controlling a pacing rate in response to said demand; and a pacing rate limiter connected to said pacing rate controller, said pacing rate limiter having an upper limit setting unit for setting an upper limit value for said pacing rate, and an upper limit determining unit for determining a relation between energy supplied to the myocardium and energy consumed by the myocardium and for calculating said upper limit value for said pacing rate from said relation for supply to said upper limit setting unit, said pacing rate limiter upwardly limiting said pacing rate to always maintain said energy supplied to the myocardium to exceed said energy consumed by the myocardium.