US 12,213,766 B2
Heart beat identification and pump speed synchronization
Alexander Medvedev, Ann Arbor, MI (US); Shunzhou Yu, Ann Arbor, MI (US); and Ren You, Windsor (CA)
Assigned to TC1 LLC, St. Paul, MN (US)
Filed by TC1 LLC, St. Paul, MN (US)
Filed on Jun. 22, 2023, as Appl. No. 18/212,844.
Application 18/212,844 is a continuation of application No. 17/083,057, filed on Oct. 28, 2020, granted, now 11,712,167.
Application 17/083,057 is a continuation of application No. 16/714,287, filed on Dec. 13, 2019, granted, now 10,856,748, issued on Dec. 8, 2020.
Application 16/714,287 is a continuation of application No. 16/050,889, filed on Jul. 31, 2018, granted, now 10,506,935, issued on Dec. 17, 2019.
Application 16/050,889 is a continuation of application No. 15/041,716, filed on Feb. 11, 2016, granted, now 10,052,420, issued on Aug. 21, 2018.
Claims priority of provisional application 62/114,886, filed on Feb. 11, 2015.
Prior Publication US 2023/0414120 A1, Dec. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/02 (2006.01); A61B 5/024 (2006.01); A61M 1/00 (2006.01); A61M 60/178 (2021.01); A61M 60/408 (2021.01); A61M 60/515 (2021.01); A61M 60/538 (2021.01); A61M 60/148 (2021.01)
CPC A61B 5/024 (2013.01) [A61B 5/02438 (2013.01); A61M 1/00 (2013.01); A61M 60/178 (2021.01); A61M 60/408 (2021.01); A61M 60/515 (2021.01); A61M 60/538 (2021.01); A61M 60/148 (2021.01); A61M 2205/3334 (2013.01); A61M 2230/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heart assist pump device, comprising:
a motor; and
a controller, wherein the controller is configured to:
identify two or more prior pulses of a heartbeat;
determine a pulse period based on the two or more prior pulses;
determine a speed synchronization start point at which time the motor will begin a change in speed of operation based on the pulse period; and
begin the change in speed of operation of the motor to a target speed at the speed synchronization start point, wherein changing the speed of the motor comprises one or both of increasing the speed of the motor during systole and decreasing the speed of the motor during diastole.