Patent ID: 8398536
Filing Date: 2013-03-19
Classification: A61M

Abstract:
1. An implantable two-chamber system for supporting the left ventricle of the heart, comprising a pumping device and a drive unit, the pumping device comprising a first pumping chamber, a second pumping chamber, and a pressure plate arranged therebetween, the drive unit being able to reciprocate the pressure plate between two end positions, wherein fluid is compressed in the first pumping chamber at the same time that the second pumping chamber is emptied, wherein each of the first and second pumping chambers has: wherein the inlet is immediately beside the outlet such that at least an inner wall of the inlet meets an inner wall of the outlet, wherein the inlet is under an acute angle with the outlet, and wherein each of the first and second pumping chambers has a respective bulge for reducing flow resistance, the bulge being contiguous with the inlet and having a bulge length, the bulge length being 10 to 15% of the pumping chamber length.