US 12,263,334 B2
Anti-suction blood pump inlet
Scott C. Corbett, Danvers, MA (US); Ahmad El Katerji, Danvers, MA (US); and Charles DeLorenzo, Danvers, MA (US)
Assigned to ABIOMED, INC., Danvers, MA (US)
Filed by ABIOMED, Inc., Danvers, MA (US)
Filed on Feb. 6, 2024, as Appl. No. 18/433,742.
Application 18/433,742 is a division of application No. 17/410,168, filed on Aug. 24, 2021, granted, now 11,938,311.
Application 17/410,168 is a continuation of application No. 15/694,134, filed on Sep. 1, 2017, granted, now 11,123,541, issued on Sep. 21, 2021.
Claims priority of provisional application 62/382,471, filed on Sep. 1, 2016.
Prior Publication US 2024/0252810 A1, Aug. 1, 2024
Int. Cl. A61M 60/857 (2021.01); A61M 60/13 (2021.01); A61M 60/226 (2021.01); A61M 60/422 (2021.01); A61M 60/443 (2021.01)
CPC A61M 60/422 (2021.01) [A61M 60/13 (2021.01); A61M 60/226 (2021.01); A61M 60/443 (2021.01); A61M 60/857 (2021.01)] 15 Claims
OG exemplary drawing
 
1. A method of manufacturing a heart pump assembly, the method comprising:
coupling an impeller blade to a rotor;
inserting the impeller blade in a housing;
coupling a cannula to the housing;
coupling an inflow cage to the cannula, wherein the inflow cage comprises a plurality of apertures radially oriented about a constant circumference of the inflow cage, wherein the plurality of apertures is arranged in at least a first row of apertures spaced apart linearly about the constant circumference of the inflow cage and a second row of apertures spaced apart linearly about the constant circumference of the inflow cage, wherein the second row of apertures is proximal of the first row of apertures; and
coupling a distal projection to a distal end of the inflow cage, wherein the distal projection is distal to the plurality of apertures and a base of the distal projection forms a distal edge of the first row of apertures,
wherein the first row of apertures includes a plurality of first apertures and the second row of apertures includes a plurality of second apertures, each of the plurality of first apertures having an area greater than an area of each of the plurality of second apertures.