Drive device for artificial ventricle to support blood circulation, has hydraulic fluid in working chamber of cylinder and piston arrangement, where piston stroke can be adjusted between two extremes

摘要

The device (1) has a hydraulic fluid in a working chamber (2) of a cylinder (5), whose volume is periodically varied between two extreme values by a piston (6) operated by a drive spindle (7) fixed to a drive motor (3). The device also has a connection (4) for connecting lines (10) to a ventricle formed as a membrane pump. The stroke length of the piston between two end points can be adjusted, by sliding the working spindle on a slide (8).