US 12,239,831 B2
Integrated adjustable multi-pump mechanical circulatory support device
Harutyun Sarkisyan, Rancho Cordova, CA (US); and Amy L. Throckmorton, Cherry Hill, NJ (US)
Assigned to DREXEL UNIVERSITY, Philadelphia, PA (US)
Filed by Drexel University, Philadelphia, PA (US)
Filed on Jan. 28, 2021, as Appl. No. 17/160,649.
Claims priority of provisional application 62/967,865, filed on Jan. 30, 2020.
Prior Publication US 2021/0236801 A1, Aug. 5, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 60/221 (2021.01); A61M 60/126 (2021.01); A61M 60/165 (2021.01); A61M 60/232 (2021.01); A61M 60/237 (2021.01); A61M 60/50 (2021.01); A61M 60/857 (2021.01); F04D 13/12 (2006.01); F04D 15/00 (2006.01); A61M 60/419 (2021.01); A61M 60/82 (2021.01); A61M 60/873 (2021.01)
CPC A61M 60/221 (2021.01) [A61M 60/126 (2021.01); A61M 60/165 (2021.01); A61M 60/232 (2021.01); A61M 60/237 (2021.01); A61M 60/50 (2021.01); A61M 60/857 (2021.01); F04D 13/12 (2013.01); F04D 15/0011 (2013.01); A61M 60/419 (2021.01); A61M 60/82 (2021.01); A61M 60/873 (2021.01)] 16 Claims
OG exemplary drawing
 
1. A mechanical circulatory support device, comprising:
a housing containing separate first and second pumps, each pump having an inlet, an outlet, and an impeller; and
a switching mechanism within said housing and movable from a first position to a second position to divert blood flow within said housing to one of said pumps or to bypass blood flow relative to one of the pumps within the housing;
wherein, in the first position, the switching mechanism directs blood flow through the first pump and not the second pump, and wherein, in the second position, the switching mechanism directs blood flow through the second pump and not the first pump; and
wherein the first and second pumps include a centrifugal pump and an axial flow pump.