Intravascular fluid movement devices, systems, and methods of use

Abstract

Abstract An intravascular blood pump, comprising: a deployable distal working portion, including, in a deployed configuration: a distal expandable section with a collapsed delivery configuration and a deployed configuration, the distal expandable section having a proximal end and a distal end; a proximal expandable section with a collapsed delivery configuration and a deployed configuration, the proximal expandable section having a proximal end and a distal end, the distal end of which is axially spaced from the proximal end of the distal expandable section; the distal expandable section and the proximal expandable section comprising an expandable mesh structure; an impeller disposed radially and axially within the proximal expandable section; a blood impermeable conduit coupled to the distal expandable section and the proximal expandable section and extending axially between the proximal end of the distal expandable section and the distal end of the proximal expandable section, the conduit at least partially defining a blood flow lumen between a distal end of the conduit and a proximal end of the conduit, wherein a central region of the blood impermeable conduit spans an axial distance, and the expandable mesh structure of the distal expandable section and the proximal expandable section does not extend axially into the central region, wherein the distal end of the distal expandable section extends further distally than the distal end of the blood impermeable conduit, and the proximal end of the proximal expandable section extends further proximally than the proximal end of the blood impermeable conduit; and an elongate portion extending proximally from the working portion. Abstract

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