US 12,257,426 B2
Compressible rotor
Tino Andreas Boelke, Aachen (DE); Gerd Bruno Spanier, Aachen (DE); Claudia Mourran, Aachen (DE); and Smriti Singh, Aachen (DE)
Assigned to ABIOMED EUROPE GMBH, Aachen (DE)
Filed by Abiomed Europe GmbH, Aachen (DE)
Filed on Nov. 27, 2023, as Appl. No. 18/519,584.
Claims priority of provisional application 63/470,663, filed on Jun. 2, 2023.
Claims priority of provisional application 63/429,649, filed on Dec. 2, 2022.
Prior Publication US 2024/0198083 A1, Jun. 20, 2024
Int. Cl. A61M 60/808 (2021.01); B29C 45/00 (2006.01); F04D 29/02 (2006.01); F04D 29/18 (2006.01); B29K 67/00 (2006.01); B29K 83/00 (2006.01); B29L 31/08 (2006.01)
CPC A61M 60/808 (2021.01) [B29C 45/0001 (2013.01); F04D 29/026 (2013.01); F04D 29/181 (2013.01); B29K 2067/00 (2013.01); B29K 2083/00 (2013.01); B29K 2995/0088 (2013.01); B29L 2031/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rotor comprising:
a hub configured to rotate around a central axis; and
at least one rotor blade coupled to the hub and extending away from an outer surface of the hub, the at least one rotor blade comprising a medical-grade material, the at least one rotor blade configured to have a crimped state and a running state;
wherein the medical-grade material is configured for casting or injection molding, and upon curing, the medical-grade material having a shore A hardness value of 90-100 or shore B hardness value of 35-55 as determined using DIN ISO 7619-1 and a Young's modulus of 60 Mpa-250 MPa as determined used ISO 527;
wherein in the crimped state, the at least one rotor blade is compressed and exposed to strains of up to about 160% in a dry environment at temperatures of 20-25° C.; and
wherein in the running state, the at least one rotor blade is expanded and exposed to strains of up to 10% in a wet environment at temperatures of 36-42° C.