US 11,986,274 B2
Cardiovascular assist system that quantifies heart function and facilitates heart recovery
Elazer Edelman, Cambridge, MA (US); Brian Chang, Cambridge, MA (US); Noam Josephy, Danvers, MA (US); and Sonya Sanat Bhavsar, Danvers, MA (US)
Assigned to ABIOMED, INC., Danvers, MA (US); and MASSACHUSETTS INSTITUTE OF TECHNOLOGY, Cambridge, MA (US)
Filed by ABIOMED, Inc., Danvers, MA (US); and Massachusetts Institute of Technology, Cambridge, MA (US)
Filed on Nov. 3, 2021, as Appl. No. 17/518,193.
Application 17/518,193 is a continuation of application No. 16/455,835, filed on Jun. 28, 2019, granted, now 11,197,618.
Application 16/455,835 is a continuation of application No. 15/709,080, filed on Sep. 19, 2017, granted, now 10,376,162, issued on Aug. 13, 2019.
Claims priority of provisional application 62/396,628, filed on Sep. 19, 2016.
Prior Publication US 2022/0167862 A1, Jun. 2, 2022
Int. Cl. A61B 5/021 (2006.01); A61B 5/00 (2006.01); A61B 5/02 (2006.01); A61B 5/0205 (2006.01); A61B 5/0215 (2006.01); A61B 5/029 (2006.01); A61B 5/352 (2021.01); A61M 60/178 (2021.01); A61M 60/216 (2021.01); A61M 60/422 (2021.01); A61M 60/531 (2021.01); A61M 60/554 (2021.01); A61M 60/857 (2021.01); A61B 5/024 (2006.01); A61B 5/026 (2006.01)
CPC A61B 5/02141 (2013.01) [A61B 5/02028 (2013.01); A61B 5/0205 (2013.01); A61B 5/0215 (2013.01); A61B 5/02158 (2013.01); A61B 5/029 (2013.01); A61B 5/352 (2021.01); A61B 5/4848 (2013.01); A61B 5/7275 (2013.01); A61M 60/178 (2021.01); A61M 60/216 (2021.01); A61M 60/422 (2021.01); A61M 60/531 (2021.01); A61M 60/554 (2021.01); A61M 60/857 (2021.01); A61B 5/02405 (2013.01); A61B 5/026 (2013.01); A61B 2505/09 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An automated method of using a heart pump system to determine cardiac function of a patient, the method comprising:
measuring, by a pressure sensor, an aortic pressure over time;
measuring, by a controller, a motor parameter over time;
receiving, from the pressure sensor, the aortic pressure over time;
generating, by the controller, a relationship between the motor parameter and the aortic pressure;
determining, by the controller, at least one heart metric indicative of cardiac function based on the generated relationship between the measured aortic pressure and the measured motor parameter;
displaying the at least one heart metric; and
dynamically adjusting, by the controller, operation of the heart pump system to change driving of a rotor of the heart pump system based on the at least one heart metric,
wherein the heart pump system is implanted across an aortic valve of the patient.