Patent ID: 8255050
Filing Date: 2012-08-28
Classification: A61M,F04D

Abstract:
1. A catheter to assist a performance of a heart, comprising: at least one pump, wherein the pump is formed as a rotary pump arranged at a distal end of the catheter, a rotor of said pump being arranged distally at an outer side of said catheter, and being coupled with a drive wheel via a magneto coupling, said drive wheel arranged inside the catheter and formed as a hydraulically or pneumatically operated paddle wheel; a first lumen of the catheter supplying driving fluid to the drive wheel; and a second lumen of the catheter carrying off driving fluid from the drive wheel, wherein said first lumen and second lumen for the driving fluid are guided through an expandable balloon surrounding the catheter in a sealing manner, and said first lumen and second lumen each carry separately controllable closure members via which driving fluid moves into the balloon or moves out of the balloon into the respective first lumen and second lumen.