Patent ID: 9308302
Filing Date: 2016-04-12
CPC Classification: A61M

Claim Text:
1. A catheter pump assembly, comprising: a proximal portion; a distal portion; a catheter body having a lumen extending along a longitudinal axis between the proximal and distal portions; an impeller disposed at the distal portion, the impeller including a blade with a trailing edge; and a flow modifying structure disposed downstream of the impeller, the flow modifying structure having a plurality of blades having a leading edge substantially parallel to and in close proximity to the trailing edge of the blade of the impeller and an expanse extending downstream from the leading edge, the expanse having a first region with higher curvature and a second region with lower curvature, the first region being between the leading edge and the second region; wherein the flow modifying structure is collapsible from a deployed configuration to a collapsed configuration.