US 12,453,847 B2
Systems and methods for controlling an implantable blood pump
Mattias Scheffler, Paris (FR); Nicolas Barabino, Marseilles (FR); Marc Rebillat, Fontenay-aux-Roses (FR); Eric Monteiro, Lieusaint (FR); and Nazih Mechbal, Paris (FR)
Assigned to CorWave SA, Clichy (FR)
Filed by CorWave SA, Clichy (FR)
Filed on Sep. 14, 2021, as Appl. No. 17/474,935.
Application 17/474,935 is a continuation of application No. PCT/IB2020/052337, filed on Mar. 13, 2020.
Claims priority of provisional application 62/819,436, filed on Mar. 15, 2019.
Prior Publication US 2022/0062618 A1, Mar. 3, 2022
Int. Cl. A61M 60/148 (2021.01); A61M 60/178 (2021.01); A61M 60/268 (2021.01); A61M 60/427 (2021.01); A61M 60/462 (2021.01); A61M 60/515 (2021.01); A61M 60/523 (2021.01); A61M 60/538 (2021.01); A61M 60/585 (2021.01); A61M 60/592 (2021.01); A61M 60/871 (2021.01)
CPC A61M 60/148 (2021.01) [A61M 60/178 (2021.01); A61M 60/268 (2021.01); A61M 60/427 (2021.01); A61M 60/462 (2021.01); A61M 60/515 (2021.01); A61M 60/523 (2021.01); A61M 60/538 (2021.01); A61M 60/585 (2021.01); A61M 60/592 (2021.01); A61M 60/871 (2021.01); A61M 2205/106 (2013.01); A61M 2205/3317 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3523 (2013.01); A61M 2205/50 (2013.01); A61M 2205/8206 (2013.01); A61M 2230/04 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A pump system comprising:
a pump configured to be in fluid communication with a patient's heart, the pump comprising:
a housing having an inlet and an outlet;
a deformable membrane disposed within the housing;
a magnetic portion coupled to the deformable membrane and comprising at least one magnet; and
an actuator configured to interface with the magnetic portion to cause the deformable membrane to reciprocate in a wave-like manner to produce blood flow from the inlet to the outlet; and
a controller operatively coupled to the pump, the controller configured to be programmed to:
estimate a velocity of the magnetic portion coupled to the deformable membrane based on an electrical signal from the pump; and
adjust at least one of a frequency at which the deformable membrane reciprocates or an amplitude at which the deformable membrane reciprocates based on the velocity of the magnetic portion estimated based on the electrical signal from the pump.