US 12,280,251 B2
Counterpulsation device driver apparatus, method and system
Paul Spence, Danvers, MA (US); Rob Dowling, Danvers, MA (US); Robert T. V. Kung, Danvers, MA (US); Thorsten Siess, Aachen (DE); Eric Gratz, Danvers, MA (US); and Gerd Spanier, Aachen (DE)
Assigned to ABIOMED, INC., Danvers, MA (US)
Filed by ABIOMED, Inc., Danvers, MA (US)
Filed on Jan. 10, 2023, as Appl. No. 18/095,046.
Application 18/095,046 is a continuation of application No. 16/780,388, filed on Feb. 3, 2020, granted, now 11,577,068.
Application 16/780,388 is a continuation of application No. 15/923,734, filed on Mar. 16, 2018, granted, now 10,549,020, issued on Feb. 4, 2020.
Application 15/923,734 is a continuation of application No. 15/398,833, filed on Jan. 5, 2017, granted, now 9,950,102, issued on Apr. 24, 2018.
Application 15/398,833 is a continuation of application No. 14/360,474, granted, now 9,566,374, issued on Feb. 14, 2017, previously published as PCT/US2012/066367, filed on Nov. 21, 2012.
Claims priority of provisional application 61/563,238, filed on Nov. 23, 2011.
Prior Publication US 2023/0233842 A1, Jul. 27, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 60/869 (2021.01); A61M 60/135 (2021.01); A61M 60/148 (2021.01); A61M 60/274 (2021.01); A61M 60/43 (2021.01); A61M 60/554 (2021.01); A61B 17/062 (2006.01); A61B 17/11 (2006.01)
CPC A61M 60/869 (2021.01) [A61M 60/135 (2021.01); A61M 60/148 (2021.01); A61M 60/274 (2021.01); A61M 60/43 (2021.01); A61M 60/554 (2021.01); A61B 17/062 (2013.01); A61B 2017/1107 (2013.01); A61B 2017/1135 (2013.01); A61M 2205/3337 (2013.01); A61M 2205/502 (2013.01); A61M 2230/06 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A counterpulsation device (CPD) comprising:
a blood chamber;
a drive chamber;
a membrane configured to separate the blood chamber from the drive chamber;
a CPD drive line in pneumatic communication with the drive chamber; and
a controller configured to:
receive a heartbeat signal indicative of a heartbeat of a subject;
control a pressure supplied to the CPD drive line to cause the CPD to alternately fill with blood and eject blood with a timing that is determined at least in part based on the heartbeat signal;
receive a CPD drive line pressure signal indicative of the pressure in the CPD drive line; and
adjust the pressure supplied to the CPD drive line based at least in part on the CPD drive line pressure signal, by performing at least one of: exposing the CPD drive line to a negative pressure to fill the blood chamber as the heart of the subject is contracting and exposing the CPD drive line to a positive pressure to empty the blood chamber as the heart of the subject is relaxing,
wherein the controller is configured to adjust the pressure supplied to the CPD drive line based at least in part on the CPD drive line pressure signal by analyzing the CPD drive line pressure signal to determine a full condition or an empty condition of the CPD by analyzing change in drive line pressure as a function of time.