US 11,786,719 B2
Rotary blood pump
David Busch, Munich (DE); John C. Marous, III, Pittsburgh, PA (US); Anthony S. McCoppin, Blawnox, PA (US); and Robert G. Svitek, Freeport, PA (US)
Assigned to CARDIACASSIST, INC., Pittsburgh, PA (US)
Filed by CARDIACASSIST, INC., Pittsburgh, PA (US)
Filed on Jan. 11, 2021, as Appl. No. 17/146,183.
Application 17/146,183 is a continuation of application No. PCT/US2019/014685, filed on Jan. 23, 2019.
Claims priority of provisional application 62/702,562, filed on Jul. 24, 2018.
Prior Publication US 2021/0128903 A1, May 6, 2021
Int. Cl. F04D 7/04 (2006.01); A61M 60/232 (2021.01); A61M 60/221 (2021.01); A61M 60/422 (2021.01); F04D 25/06 (2006.01); F04D 29/046 (2006.01); F04D 29/42 (2006.01); A61M 60/814 (2021.01); A61M 60/825 (2021.01); A61M 60/113 (2021.01)
CPC A61M 60/232 (2021.01) [A61M 60/113 (2021.01); A61M 60/221 (2021.01); A61M 60/422 (2021.01); A61M 60/814 (2021.01); A61M 60/825 (2021.01); F04D 7/04 (2013.01); F04D 25/06 (2013.01); F04D 29/046 (2013.01); F04D 29/426 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A centrifugal blood pump comprising:
a housing having a pumping chamber, an inlet with an inlet axis, and an outlet with an outlet axis, the inlet and the outlet being in fluid communication with the pumping chamber;
an impeller rotatably disposed within the pumping chamber;
at least one bearing supporting the impeller within the pumping chamber; and
a strut connected to the housing at the inlet to support at least a portion of the bearing mechanism,
wherein the strut is fixed directly to an inner sidewall of the housing at a fixation point at a circumferential position about the inlet axis such that a major axis of the strut and the outlet axis define a predetermined angle in a cross-sectional plane perpendicular to the inlet axis, wherein a first axial end of the strut proximate the inlet extends from the inner sidewall of the housing towards the inlet axis at an angle of 15° to 75° relative to the inlet axis.