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公开(公告)号：US12076164B2
公开(公告)日：2024-09-03
申请号：US18234631
申请日：2023-08-16
发明人： William J. Drasler , Michael J. Pikus , Roger Hastings , Scott R. Smith , Daniel M. Lafontaine , Douglas R. Saholt , Graig L Kveen , Martin R. Willard
CPC分类号： A61B5/6848 , A61B5/29 , A61B5/6882 , A61N1/0573 , A61N1/059 , A61B5/0031 , A61B5/283 , A61N1/3684 , A61N1/36843 , A61N1/37205 , A61N1/3756
摘要： Some embodiments of pacing systems employ wireless electrode assemblies to provide pacing therapy. The wireless electrode assemblies may wirelessly receive energy via an inductive coupling so as to provide electrical stimulation to the surrounding heart tissue. In certain embodiments, the wireless electrode assembly may include one or more biased tines that shift from a first position to a second position to secure the wireless electrode assembly into the inner wall of the heart chamber.
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公开(公告)号：US11911623B2
公开(公告)日：2024-02-27
申请号：US16290112
申请日：2019-03-01
申请人： Medtronic, Inc.
发明人： Vicki L. Bjorklund , Xin Chen , William J. Clemens , Lilian Kornet , Jean Rutten , Berthold Stegemann , Zhongping Yang
CPC分类号： A61N1/36843 , A61B5/287 , A61B90/39 , A61N1/059 , A61N1/0573 , A61N1/0592 , A61N1/37512 , A61B2090/3966 , A61B2090/3987 , A61N1/368 , A61N1/3627
摘要： A method, system and device for implanting an electrode assembly of an implantable medical device in a patient's heart. Positioning one or more radiopaque markers in a coronary sinus of the patient's heart. Positioning, by using the one or more positioned radiopaque markers as a fluoroscopic visual reference, a distal tip of a delivery catheter within a right atrium of the patient's heart so that a distal opening of a lumen of the catheter is against a septal wall of the heart at a location between the ostium of the coronary sinus and the A-V nodal area of the right atrium, and so that the tip of the catheter is generally directed toward a left ventricle of the patient's heart. Advancing the electrode assembly through the lumen of the catheter and into the septal wall.
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公开(公告)号：US11766219B2
公开(公告)日：2023-09-26
申请号：US17485918
申请日：2021-09-27
发明人： William J. Drasler , Michael J. Pikus , Roger Hastings , Scott R. Smith , Daniel M. Lafontaine , Douglas R. Saholt , Graig L. Kveen , Martin R. Willard
CPC分类号： A61B5/6848 , A61B5/6882 , A61N1/059 , A61N1/0573 , A61B5/0031 , A61B5/283 , A61N1/3684 , A61N1/36843 , A61N1/3756 , A61N1/37205
摘要： Some embodiments of pacing systems employ wireless electrode assemblies to provide pacing therapy. The wireless electrode assemblies may wirelessly receive energy via an inductive coupling so as to provide electrical stimulation to the surrounding heart tissue. In certain embodiments, the wireless electrode assembly may include one or more biased tines that shift from a first position to a second position to secure the wireless electrode assembly into the inner wall of the heart chamber.
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公开(公告)号：US11712567B2
公开(公告)日：2023-08-01
申请号：US17205114
申请日：2021-03-18
CPC分类号： A61N1/36564 , A61F2/2412 , A61F2/2424 , A61N1/3682 , A61N1/3684 , A61N1/36117 , A61N1/36514 , A61N1/36528 , A61N1/36571 , A61N1/36578 , A61N1/36585 , A61F2250/0013 , A61N1/36842 , A61N1/36843
摘要： Systems and methods for controlling blood pressure by controlling atrial pressure and atrial stretch are disclosed. In some embodiments, a stimulation circuit may be configured to deliver a stimulation pulse to at least one cardiac chamber of a heart of a patient, and at least one controller may be configured to execute delivery of one or more stimulation patterns of stimulation pulses to the at least one cardiac chamber, wherein at least one of the stimulation pulses stimulates the heart such that an atrial pressure resulting from atrial contraction of an atrium overlaps in time a passive pressure build-up of the atrium, such that an atrial pressure of the atrium resulting from the stimulation is a combination of the atrial pressure resulting from atrial contraction and the passive pressure build-up and is higher than an atrial pressure of the atrium would be without the stimulation, and such that the blood pressure of the patient is reduced.
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公开(公告)号：US20180326215A1
公开(公告)日：2018-11-15
申请号：US15975258
申请日：2018-05-09
申请人： Medtronic, Inc.
发明人： Subham GHOSH
CPC分类号： A61N1/3682 , A61N1/0504 , A61N1/0563 , A61N1/057 , A61N1/3621 , A61N1/365 , A61N1/36585 , A61N1/36592 , A61N1/36843 , A61N1/3688 , A61N1/3702 , A61N1/371 , A61N1/3756 , A61N1/3962 , A61N1/39622
摘要： Methods and/or devices may be configured to estimate right ventricular-timings from left ventricular (LV) sensing times for adaptive cardiac therapy using DDD/VDD LV pacing without using a right ventricular (RV) lead. One embodiment employs a subcutaneous device (SD) in a patient and a leadless pacing device (LPD) coupled to a patient's heart. Heart activity including atrial and ventricular events are sensed from the patient's heart using the SD. Left ventricular events (LVS) are sensed using the LPD. The SD is used to determine whether cardiac resynchronization pacing therapy (CRT pacing) is appropriate based upon the heart activity sensed by the SD. The SD is further configured to determine timing of CRT pacing pulses for delivery to cardiac tissue through the LPD.
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公开(公告)号：US20180126173A1
公开(公告)日：2018-05-10
申请号：US15794266
申请日：2017-10-26
CPC分类号： A61N1/36843 , A61N1/056 , A61N1/36507 , A61N1/36514 , A61N1/3682 , A61N1/3684 , A61N1/36842 , A61N1/3686 , A61N1/3688 , A61N1/3702 , A61N1/39622
摘要： An apparatus comprises a stimulus circuit, a cardiac signal sensing circuit, and a control circuit. The cardiac signal sensing circuit senses a cardiac activity signal using a sensing channel. The stimulus circuit provides electrical pulse energy to a first pacing channel that includes a first left ventricular (LV) electrode and a second pacing channel that includes a second LV electrode. The control circuit initiates delivery of electrical pulse energy using the first and second pacing channels according to a first multi-site LV pacing mode; determines a cardiac event associated with a change in cardiac conduction path using a sensed cardiac activity signal; and changes to a second LV pacing mode in response to determining the cardiac event. The second LV pacing mode is different from the first multi-site LV pacing mode in one or more of a pacing site location and inter-electrode stimulus timing.
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7.发明申请公开(公告)号：US20180056076A1
公开(公告)日：2018-03-01
申请号：US15251524
申请日：2016-08-30
申请人： PACESETTER, INC.
CPC分类号： A61N1/36585 , A61N1/36564 , A61N1/36843
摘要： Baseline BiV pacing is delivered and a corresponding baseline BiV efficacy score is determined. Intrinsic AV conduction is allowed and an intrinsic AV conduction interval is determined. BiV fusion pacing is delivered and a corresponding NAVH efficacy score is determined, for each of a plurality of different paced AV delays, each determined based on the intrinsic AV conduction interval and a different negative hysteresis delta. The baseline BiV pacing is selected for delivery during a period of time if the baseline BiV efficacy score is better than all of the NAVH efficacy scores. BiV fusion pacing is selected for delivery during the period of time, using one of the plurality of different paced AV delays for which a corresponding NAVH efficacy score was determined, if the NAVH efficacy score corresponding to at least one of the plurality of different paced AV delays is better than the baseline BiV efficacy score.
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公开(公告)号：US20180050208A1
公开(公告)日：2018-02-22
申请号：US15679757
申请日：2017-08-17
CPC分类号： A61N1/36843 , A61N1/0573 , A61N1/37229 , A61N1/37512 , A61N1/37518 , A61N1/3756 , A61N1/378 , A61N2001/058
摘要： An implantable medical device (IMD) includes a housing that is configured to be positioned at least in part in a chamber of a heart, and in some cases, in a right ventricle (RV) proximate an RV facing side of the ventricular septum of the heart. When so provided, an RV electrode may be fixed relative to the housing to be proximate the RV facing side of the ventricular septum. An LV electrode may be spaced a distance from the RV electrode and the housing such that the LV electrode is positioned at least partially within the ventricular septum. An LV electrode position adjustment assembly may be used to adjust the depth at which the LV electrode is positioned within the ventricular septum.
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公开(公告)号：US12090328B2
公开(公告)日：2024-09-17
申请号：US17898616
申请日：2022-08-30
发明人： Qi An , Yinghong Yu
CPC分类号： A61N1/3682 , A61N1/36592 , A61N1/36842 , A61N1/36843
摘要： Systems and methods for monitoring and treating patients with heart failure are discussed. The system may receive patient atrioventricular (AV) conduction characteristic under different heart rates or patient conditions. Stimulation parameters including stimulation timing parameters may be stored in a memory. The system may include a stimulation control circuit configured to determine a parameter update schedule indicating a timing at which to update stimulation parameter using patient AV conduction characteristic, and dynamically update at least a portion of the stored set of stimulation parameters at the determined parameter update schedule. For a specified heart rate or heart rate range, a stimulation parameter may be selected from the set of the stimulation parameters for use during cardiac stimulation.
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公开(公告)号：US20240181263A1
公开(公告)日：2024-06-06
申请号：US18528985
申请日：2023-12-05
CPC分类号： A61N1/3688 , A61N1/36521 , A61N1/36585 , A61N1/36842 , A61N1/36843
摘要： Systems and methods are disclosed to control transition of a stimulation circuit configured to generate first and second stimulation signals in different respective first and second stimulation modes between the different respective first and second stimulation modes using a patient metric determined using received physiologic information of the patient including at least one of thoracic impedance information or respiration information from a first time period.
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