US 12,409,310 B2
Descending aorta and vena cava blood pumps
Janine Robinson, Half Moon Bay, CA (US); Daniel Hildebrand, Santa Cruz, CA (US); Michael Calomeni, San Jose, CA (US); Veronica Neiman, San Jose, CA (US); Tom Saul, Portland, OR (US); and Robert Edesess, Campbell, CA (US)
Assigned to SHIFAMED HOLDINGS, LLC, Campbell, CA (US)
Appl. No. 17/784,758
Filed by SHIFAMED HOLDINGS, LLC, Campbell, CA (US)
PCT Filed Dec. 11, 2020, PCT No. PCT/US2020/064586
§ 371(c)(1), (2) Date Jun. 13, 2022,
PCT Pub. No. WO2021/119478, PCT Pub. Date Jun. 17, 2021.
Claims priority of provisional application 62/951,519, filed on Dec. 20, 2019.
Claims priority of provisional application 62/946,927, filed on Dec. 11, 2019.
Prior Publication US 2023/0001177 A1, Jan. 5, 2023
Int. Cl. A61M 60/122 (2021.01); A61M 60/237 (2021.01); A61M 60/808 (2021.01)
CPC A61M 60/122 (2021.01) [A61M 60/808 (2021.01); A61M 60/237 (2021.01)] 18 Claims
OG exemplary drawing
 
1. A method of supporting circulation in a descending aorta of a subject, comprising:
advancing an expandable pump portion of a blood pump into a descending aorta of a subject, the pump portion comprising an expandable blood conduit comprising a scaffold coupled to a membrane between a pump inflow and a pump outflow, the pump portion further including first and second expandable impellers at least partially within the blood conduit;
expanding the expandable blood conduit to an expanded and deployed configuration within the descending aorta;
expanding the first expandable impeller into an expanded configuration at least partially within the blood conduit;
expanding the second expandable impeller into an expanded configuration at least partially within the blood conduit and having a portion that extends beyond the expandable blood conduit; and
rotating the first and second expandable impellers to thereby move blood into the pump portion, through the blood conduit, and out of the pump portion, wherein rotation of the portion of the second expandable impeller that extends beyond the expandable blood conduit causes the pump outflow to include a radial flow component.