Device for joining heart pump to heart, comprising tube with irregularly shaped tip and suture enveloping and reinforcing ring of particular design

摘要

The heart pump (15) is permanently attached to a tube (2) guided in an angle (12) towards the heart and provided with a circular suture flange (14) and an irregularly shaped tip (13). A suture ring (1) assembled of a soft inner silicon layer (4) and two reinforced outer silicon layers (5, 6) and provided with an upper and a lower Dacron (RTM) cover (7) is stitched to the heart, the tube (2) is inserted and sealed by the ring (1). The flexible quality of the tube (2) and its irregularly shaped tip (13) compensate the forces created by the specific motion of the apex of the heart.