<p>A blood pump (10) includes an impeller having a plurality of foldable blades and a cannula (40) having a proximal portion with a fixed diameter, and a distal portion with an expandable diameter. The impeller can reside in the expandable portion of the cannula. The cannula has a collapsed condition for percutaneous delivery to a desired location within the body, and an expanded condition in which the impeller can rotate to pump blood. A flexible drive shaft can extend through the cannula for rotationally driving the impeller within the patient's body.</p>
申请公布号
CA2769631(A1)
申请公布日期
2011.01.06
申请号
CA20102769631
申请日期
2010.07.01
申请人
THE PENN STATE RESEARCH FOUNDATION;THORATEC CORPORATION
发明人
CAMPBELL, ROBERT L.;WALSH, JUSTIN M.;METREY, DANIEL;KUNZ, ROBERT F.;MALLISON, THOMAS M.;BOONE, EDWARD;MYER, ERIC;MCBRIDE, MARK W.;POWELL, KEVIN J.;WALTERS, DANIEL A.