Patent ID: 7416529
Filing Date: 2008-08-26
Classification: A61B,A61N

Abstract:
1. An implantable medical apparatus for detecting diastolic heart failure (DHF), comprising: a pressure measuring unit adapted to interact with a living subject to measure an absolute pressure value at a location and time selected from the group consisting of the left atrium during the diastasis phase immediately preceding an atrial contraction, and the pulmonary vein when the pulmonary valve is closed, both for a predetermined workload situation of the subject and a rest situation of the subject for a predetermined workload situation of the subject and for a rest situation of the subject; and a calculation unit supplied with said absolute pressure value for said predetermined workload situation and said pressure value for said rest situation, said calculation unit forming a difference, ΔP, between said absolute pressure value for said predetermined workload situation and said absolute pressure value for said rest situation, and comparing said difference ΔP to a predetermined pressure difference reference value to obtain a comparison result indicative of a DHF state of the heart of the subject.