US 12,133,976 B2
Percutaneous circulatory support device facilitating reduced hemolysis class
Anthony Malone, Galway (IE); Olena Pernatiy, Galway (IE); and Javier Palomar-Moreno, Galway (IE)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Nov. 22, 2022, as Appl. No. 17/992,149.
Claims priority of provisional application 63/282,207, filed on Nov. 23, 2021.
Prior Publication US 2023/0158286 A1, May 25, 2023
Int. Cl. A61M 60/226 (2021.01); A61M 60/419 (2021.01); A61M 60/82 (2021.01); F04D 13/02 (2006.01)
CPC A61M 60/226 (2021.01) [A61M 60/419 (2021.01); A61M 60/82 (2021.01); F04D 13/024 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A percutaneous circulatory support device, comprising:
an impeller housing comprising a proximal end portion;
a motor housing coupled to the impeller housing;
a motor carried by the motor housing;
a driving magnet operatively coupled to the motor;
a driven magnet operatively coupled to the driving magnet; the driven magnet comprising a frustoconical shape; wherein a portion of a radially outward facing surface of the driven magnet is tapered; and
an impeller disposed within the impeller housing, the impeller being operatively coupled to the driven magnet;
wherein the motor rotates the impeller, via the driving magnet and the driven magnet, relative to the impeller housing to cause blood to flow through the percutaneous circulatory support device and blood is inhibited from pooling in the proximal end portion of the impeller housing.