BLOOD PUMP, APPARATUS AND METHOD FOR OPERATING IT AT CONTROLLED FLOW, HEART RATE AND ARRHYTHMIA TREATMENT SYSTEM AND APPARATUS FOR ARTIFICIAL HEART

摘要

The invention relates to a blood circulation pump for assisting the heart of a patient. It comprises a stator (1) and a rotor (2). The rotor can be supported so as to rotate in the stator by a Laplace force bearing made up of permanent magnets (13, 14), coils (16, 17) and wedges (15, 18). The stator may have a pumping chamber with a single or double volute and the rotor may have an impulse member (10) for pumping blood. The pump may also include a rotor axial position regulator and a flow rate regulator. The axial position regulator acts on the axial bearing to adjust the position of the rotor. The flow rate regulator includes an element for measuring a dimension of a cardiac ventricle to regulate the flow rate as a function of a distension or contraction of the ventricle. Area of application: treatment of heart diseases , etc.