Patent ID: 9446179
Filing Date: 2016-09-20
CPC Classification: A61M,F04D

Claim Text:
1. A catheter pump, comprising: an elongated catheter body having a distal portion including an expandable cannula having an inlet and an outlet, the expandable cannula having a delivery profile and an operational profile larger than the delivery profile; an impeller assembly including an impeller shaft and an impeller body including one or more blades, the impeller blades drawing blood into the cannula when rotated; an expandable support having a mounting portion disposed distal of the impeller body and configured to maintain a position of the impeller relative to a cannula wall, wherein the expandable support comprises a digit comprising a first strut and a second strut, each of the first and second struts having a proximal end portion and a distal end portion, the distal end portion of the first strut joined to the distal end portion of the second strut, wherein the first and second struts are spaced apart wider at an intermediate portion than at the proximal end portion and the distal end portion.