Patent ID: 9028392
Filing Date: 2015-05-12
Classification: A61M

Abstract:
1. A temporary cardiac-assist device having a pump assembly that is physically adapted to be driven by a torque transmission line, wherein the pump assembly comprises: a drive shaft, wherein the drive shaft is a distal portion of the torque transmission line; a proximal support housing, wherein the drive shaft passes through the support housing, and wherein the support housing does not rotate; an impeller hub, wherein the impeller hub is distal to and axially aligned with the support housing and is operatively coupled to the drive shaft, wherein no portion of the torque transmission line extends beyond the impeller hub; an impeller blade that depends from the impeller hub; a casing for enclosing the impeller blade, wherein the casing has an expanded state and a collapsed state; a distal support, wherein distal support is distal to, coupled to, and axially aligned with the impeller hub, and wherein the distal support is not subjected to an axial load when the casing reconfigures from the collapsed state to the expanded state.