US 12,133,977 B2
Cost function for response algorithm
D'Anne E. Kudlik, Saint Louis Park, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Nov. 18, 2022, as Appl. No. 18/057,085.
Application 18/057,085 is a continuation of application No. 16/796,017, filed on Feb. 20, 2020, granted, now 11,504,520.
Prior Publication US 2023/0077463 A1, Mar. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 60/50 (2021.01); A61M 60/205 (2021.01); G16H 40/63 (2018.01)
CPC A61M 60/50 (2021.01) [A61M 60/205 (2021.01); G16H 40/63 (2018.01)] 17 Claims
OG exemplary drawing
 
1. A controller for an implantable blood pump, comprising:
a memory; and
processing circuitry in communication with the memory, the processing circuitry configured to:
multiply a number of suction events, of one or more suction events that occurred within a predetermined time period, by a suction event cost to generate a first output;
compare the first output to a predetermined threshold to determine whether a suction condition has occurred;
determine, based on comparing the first output to the predetermined threshold, whether the suction condition has occurred; and
responsive to determining that the suction condition has occurred, control, according to a speed response algorithm, a speed of an impeller of the implantable blood pump to resolve the suction condition.