Patent ID: 6275733
Filing Date: 2001-08-14
Classification: A61N

Abstract:
A pacing system comprising:activity rate sensor means for generating an activity indicated rate signal dependent upon the sensed activity of the patient;metabolic rate sensor means for generating a metabolic indicated rate signal dependent upon a metabolic demand of the patient in response to physical activity of the patient;dual indicated rate determining means for determining, based upon the activity indicated rate signal and the metabolic indicated rate signal, a dual indicated rate for pacing the patient, wherein the dual indicated rate determining means sets the dual indicated rate to correspond to the greater of the activity indicated rate signal or the metabolic indicated rate signal, the dual indicated rate determining means otherwise setting the dual indicated rate as corresponding to a rest rate when either the activity indicated rate signal or the metabolic indicated rate signal indicates that the patient is at rest; andpacing means for providing pacing signals to the heart of the patient in response to the determined dual indicated rate.