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.

公开(公告)号：US20200155742A1

公开(公告)日：2020-05-21

申请号：US16680758

申请日：2019-11-12

Applicant: Medtronic, Inc.

Inventor： Robert W. STADLER

IPC: A61M1/10 ,  A61M1/12

Abstract: A method of estimating a heart rate of a patient having an implantable blood pump including, during operation of the blood pump continuously detecting a plurality of cardiac cycles, each of the plurality of cardiac cycles including a length; sorting the plurality of cardiac cycles according to the length; filtering the plurality of cardiac cycles between one of a group consisting of including a reliable condition and at least one unreliable condition; continuously estimating a heart rate according to the length of the plurality of cardiac cycles and the reliable condition; and if the at least one unreliable condition is detected, modifying the estimated heart rate based on information associated with the detected at least one unreliable condition.

公开(公告)号：US20190336767A1

公开(公告)日：2019-11-07

申请号：US15969872

申请日：2018-05-03

Applicant: Medtronic, Inc.

Inventor： Ruth N. KLEPFER ,  Robert W. STADLER

IPC: A61N1/362 ,  A61N1/372 ,  A61M1/12 ,  A61N1/39 ,  A61N1/365

Abstract: An implantable cardiac rhythm management medical device is configured to switch from a first operating mode to a second, ventricular assist device operating mode for detecting cardiac arrhythmias and controlling delivery of anti-arrhythmia therapy during the ventricular assist device operating mode. The implantable medical device may receive a command from another medical device indicating co-implantation of a ventricular assist device with the implantable medical device in a patient and switch from the first mode of operating to the second mode of operating in response to receiving the command. Switching from the first mode to the second mode may include adjusting at least one control parameter used for controlling an electrical stimulation therapy deliverable by the implantable cardiac rhythm management medical device.

公开(公告)号：US20190117104A1

公开(公告)日：2019-04-25

申请号：US16221921

申请日：2018-12-17

Applicant: Medtronic, Inc.

Inventor： Robert W. STADLER ,  Xusheng ZHANG ,  Vinod SHARMA ,  James D. REINKE ,  Barbara J. SCHMID

IPC: A61B5/0464 ,  A61B5/00 ,  A61B5/04 ,  A61N1/362 ,  A61N1/372 ,  A61N1/39 ,  A61N1/375

Abstract: An implantable medical device comprises a sensing module configured to obtain electrical signals from one or more electrodes and a control module configured to process the electrical signals from the sensing module in accordance with a tachyarrhythmia detection algorithm to monitor for a tachyarrhythmia. The control module detects initiation of a pacing train delivered by a second implantable medical device, determines a type of the detected pacing train, and modifies the tachyarrhythmia detection algorithm based on the type of the detected pacing train.

公开(公告)号：US20170312532A1

公开(公告)日：2017-11-02

申请号：US15140802

申请日：2016-04-28

Applicant: Medtronic, Inc.

Inventor： Xusheng ZHANG ,  Jian CAO ,  Saul E. GREENHUT ,  Robert W. STADLER

IPC: A61N1/39 ,  A61B5/0464 ,  A61B5/042

CPC classification number: A61N1/3987 ,  A61B5/042 ,  A61B5/0464 ,  A61N1/3925 ,  A61N1/3956

Abstract: An extra-cardiovascular implantable cardioverter defibrillator senses R-waves from a first cardiac electrical signal by a first sensing channel and stores a time segment of a second cardiac electrical signal in response to each sensed R-wave. The ICD determines intervals between successively sensed R-waves and, in response to at least a predetermined number of the intervals being less than a tachyarrhythmia detection interval, analyzes at least a portion of the time segment of the second cardiac electrical signal corresponding to a most recent one of the sensed R-waves to confirm the most recent one of the R-waves. The ICD updates an unconfirmed beat count in response to the most recent one of the R-waves not being confirmed and withholds detection of a tachyarrhythmia episode in response to the unconfirmed beat count being equal to or greater than a rejection threshold.

公开(公告)号：US20240324938A1

公开(公告)日：2024-10-03

申请号：US18739315

申请日：2024-06-10

Applicant: Medtronic, Inc.

Inventor： Xiaohong ZHOU ,  Wade M. DEMMER ,  Robert W. STADLER

IPC: A61B5/366 ,  A61B5/06 ,  A61B5/283 ,  A61B5/339 ,  A61B17/00 ,  A61B90/00 ,  A61N1/05 ,  A61N1/362 ,  A61N1/365 ,  A61N1/37 ,  A61N1/372

CPC classification number: A61B5/366 ,  A61B5/068 ,  A61B5/283 ,  A61B5/339 ,  A61B90/37 ,  A61N1/056 ,  A61N1/362 ,  A61N1/36521 ,  A61B2017/00243 ,  A61N1/371 ,  A61N1/372

Abstract: A medical device system is configured to guide implantation of a pacing electrode for left bundle branch pacing. The system includes a medical device having a processor configured to receive at least one cardiac electrical signal, determine a feature of the cardiac electrical signal, compare the feature to left bundle branch signal criteria, and determine a left bundle branch signal in response to the feature meeting the left bundle branch signal criteria. The system includes a display unit configured to generate a user feedback signal indicating advancement of a pacing electrode into a left portion of a ventricular septum in response to the processor determining the left bundle branch signal.

公开(公告)号：US20240252828A1

公开(公告)日：2024-08-01

申请号：US18621035

申请日：2024-03-28

Applicant: Medtronic, Inc.

Inventor： Xiaohong ZHOU ,  Wade M. DEMMER ,  Robert W. STADLER

IPC: A61N1/37

CPC classification number: A61N1/371 ,  A61N1/3702

Abstract: A medical device processor is configured to receive at least one cardiac electrical signal that is sensed during bilateral bundle branch pacing delivered from a bipolar electrode pair comprising an anode positioned along a first bundle branch and a cathode positioned along a second bundle branch opposite the first bundle branch, determine at least one feature from the first cardiac electrical signal, determine that the at least one feature meets first bundle branch capture criteria; and determine anodal bundle branch capture in response to the first bundle branch capture criteria being met.

公开(公告)号：US20210015390A1

公开(公告)日：2021-01-21

申请号：US16990804

申请日：2020-08-11

Applicant: Medtronic, Inc.

Inventor： Xiaohong ZHOU ,  Wade M. DEMMER ,  Robert W. STADLER

IPC: A61B5/0472 ,  A61B5/044 ,  A61N1/365 ,  A61N1/362 ,  A61B5/042 ,  A61N1/05

Abstract: A medical device system is configured to guide implantation of a pacing electrode for left bundle branch pacing. The system includes a medical device having a processor configured to receive at least one cardiac electrical signal, determine a feature of the cardiac electrical signal, compare the feature to left bundle branch signal criteria, and determine a left bundle branch signal in response to the feature meeting the left bundle branch signal criteria. The system includes a display unit configured to generate a user feedback signal indicating advancement of a pacing electrode into a left portion of a ventricular septum in response to the processor determining the left bundle branch signal.

公开(公告)号：US20160106991A1

公开(公告)日：2016-04-21

申请号：US14519220

申请日：2014-10-21

Applicant: Medtronic, Inc.

Inventor： Robert W. STADLER ,  Jian CAO

IPC: A61N1/39

CPC classification number: A61N1/3987 ,  A61B5/0452 ,  A61B5/046 ,  A61B5/0464 ,  A61N1/3702 ,  A61N1/3925 ,  A61N1/3956 ,  A61N1/3962

Abstract: A medical device is configured to deliver an electrical stimulation pulse to a heart of a patient, determine a pre-stimulation cardiac event amplitude prior to delivering the electrical stimulation pulse and adjust a cardiac event sensing threshold according to a first post-stimulation decay sequence in response to the electrical stimulation pulse delivery. The first post-stimulation decay sequence is controlled by a sensing module of the medical device according to a first set of sensing control parameters including at least one sensing control parameter based on the pre-stimulation cardiac event amplitude.

Abstract translation: 医疗设备被配置为将电刺激脉冲传送到患者的心脏，在传递电刺激脉冲之前确定预刺激心脏事件振幅，并根据第一后刺激衰减序列调整心脏事件感测阈值 响应电刺激脉冲输送。 第一后刺激衰减序列由医疗装置的感测模块根据第一组感测控制参数控制，包括基于预刺激心脏事件振幅的至少一个感测控制参数。