公开(公告)号：US20210260264A1

公开(公告)日：2021-08-26

申请号：US16796017

申请日：2020-02-20

Applicant: Medtronic, Inc.

Inventor： D'Anne E. KUDLIK

IPC: A61M1/10 ,  G16H40/63

Abstract: A controller for an implantable blood pump includes processing circuitry configured to initiate a suction response algorithm if a combination of a number of detected suction events multiplied by a suction event variable and a number of non-suction events multiplied by a non-suction event variable exceed a predetermined threshold.

公开(公告)号：US20210260263A1

公开(公告)日：2021-08-26

申请号：US16795929

申请日：2020-02-20

Applicant: Medtronic, Inc.

Inventor： D'Anne E. KUDLIK ,  Carlos REYES ,  Robert W. STADLER

IPC: A61M1/10 ,  A61M1/12

Abstract: A controller for an implantable blood pump, the implantable blood pump having an impeller. The controller includes processing circuitry configured to reduce a speed of the impeller from a set speed to a first reduced speed if a first predetermined amount of time of detected suction events occurs during a first time interval and increase the speed of the impeller from the first reduced speed if a second predetermined amount of time or less of detected suction events occur during a second time interval and a third predetermined amount of time or less of detected suction events

公开(公告)号：US20200275890A1

公开(公告)日：2020-09-03

申请号：US16775982

申请日：2020-01-29

Applicant: Medtronic, Inc.

Inventor： D'Anne E. KUDLIK ,  Robert W. STADLER

IPC: A61B5/00 ,  A61M1/12 ,  A61B5/029 ,  A61M1/10

Abstract: A method of detecting hypertension in a patient having an implantable blood pump, the method includes operating the implantable blood pump at a first pump set speed during a first period of time. A first flow rate minimum during a cardiac cycle of the patient is measured during the first period of time. The first pump set speed is reduced by at least 200 rpm during a second period of time after the first period of time to a second pump set speed, the second period of time being less than the first period of time. A second flow rate minimum is measured during a cardiac cycle during the second period of time. If the second flow rate minimum decreases during the second period of time at the second pump set speed by more than a predetermined amount, an alert is generated indicating a presence of hypertension.