US 12,076,476 B2
HLM pump stop reaction
Friedemann Schubert, Munich (DE)
Assigned to LivaNova Deutschland GmbH, Munich (DE)
Filed by LivaNova Deutschland GmbH, Munich (DE)
Filed on Jun. 13, 2023, as Appl. No. 18/209,129.
Application 18/209,129 is a continuation of application No. 17/393,161, filed on Aug. 3, 2021, granted, now 11,690,943.
Application 17/393,161 is a continuation of application No. PCT/EP2019/054664, filed on Feb. 26, 2019.
Prior Publication US 2023/0321333 A1, Oct. 12, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G05B 23/02 (2006.01); A61M 1/36 (2006.01); G08B 5/22 (2006.01); G08B 21/18 (2006.01)
CPC A61M 1/3666 (2013.01) [A61M 1/3607 (2014.02); G08B 5/22 (2013.01); G08B 21/18 (2013.01); A61M 2205/18 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/502 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A heart lung machine (HLM), comprising:
a fluid pump;
a pump actuator configured to control the fluid pump;
an actuator control unit (ACU) operably connected to the pump actuator;
a processing unit configured to receive a signal from the pump actuator;
an input control device operably connected to the pump actuator, the input control device comprising a rotatable knob, wherein the ACU is configured to:
determine that the pump actuator has been stopped in response to a pump-stop trigger event;
thereafter, determine that the rotatable knob has been rotated to a first position after the pump actuator has been stopped; and
thereafter, restart the pump actuator solely upon determining that the rotatable knob has been rotated to the first position.