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公开(公告)号：US09750943B2
公开(公告)日：2017-09-05
申请号：US14681223
申请日：2015-04-08
Applicant: Medtronic, Inc.
Inventor： Todd J Sheldon , David M Steinhaus
CPC classification number: A61N1/3712 , A61N1/36507 , A61N1/36542 , A61N1/36578
Abstract: An implantable medical device includes an activity sensor, a pulse generator, and a control module. The control module is configured to determine an activity metric from the activity sensor signal over an activity metric interval and compare the activity metric to a loss of capture detection threshold. The control module may detect loss of capture in response to the activity metric being less than the loss of capture detection threshold and increase a pacing pulse output in response to detecting the loss of capture.
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公开(公告)号：US09724519B2
公开(公告)日：2017-08-08
申请号：US14694976
申请日：2015-04-23
Applicant: Medtronic, Inc.
Inventor： Wade M Demmer , Todd J Sheldon
CPC classification number: A61N1/36585 , A61N1/3688 , A61N1/37205 , A61N1/3756
Abstract: In some examples, a leadless pacing device (LPD) is configured to switch from a sensing without pacing mode to ventricular pacing mode in response to determining that no intrinsic ventricular activity was detected within a ventricular event detection window for at least one cardiac cycle, which may be referred to as loss of conduction. The ventricular pacing mode may be selected based on whether atrial oversensing is detected in combination with the loss of conduction. In some examples, an atrio-ventricular synchronous pacing mode is selected in response to detecting loss of conduction and in response to determining that atrial oversensing is not detected. In addition, in some examples, an asynchronous ventricular pacing mode is selected in response to detecting both atrial oversensing and loss of conduction.
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公开(公告)号：US09539423B2
公开(公告)日：2017-01-10
申请号：US14518087
申请日：2014-10-20
Applicant: Medtronic, Inc.
Inventor： Matthew D Bonner , Todd J Sheldon , Kathryn Hilpisch , Noelle C Neafus , Ronan Wood
IPC: A61B19/00 , A61N1/05 , A61N1/362 , A61N1/365 , A61B17/34 , A61N1/372 , A61N1/375 , A61M25/00 , A61B17/00 , A61B17/22 , A61B17/221
CPC classification number: A61N1/0592 , A61B17/3468 , A61B2017/00044 , A61B2017/00243 , A61B2017/22035 , A61B2017/2215 , A61M25/0026 , A61N1/059 , A61N1/3624 , A61N1/36507 , A61N1/372 , A61N1/37205 , A61N1/3756
Abstract: Delivery tools of interventional medical systems facilitate deployment of relatively compact implantable medical devices that include extensions, for example, cardiac pacing devices that include an extension for atrial sensing, wherein an entirety of the device is contained within the delivery tool while a distal-most portion of the tool is navigated to a target implant site. Once at the implant site, a device fixation member may be exposed out from a distal opening of the tool, for initial deployment, while the extension remains contained within the delivery tool. The tool includes a grasping mechanism, operable, within and without a lumen of the tool, to alternately grip and release the device extension, for example, to position a distal end of the extension after the tool has been withdrawn from over an entirety of the initially deployed device.
Abstract translation: 介入医疗系统的传送工具便于部署相对紧凑的可植入医疗设备，其包括延伸部，例如包括用于心房感测的延伸部的心脏起搏装置，其中整个装置包含在输送工具内，而最远部分 的工具被导航到目标植入部位。 一旦在植入位置处，装置固定构件可以从工具的远侧开口暴露出来，用于初始部署，同时延伸部分保持在输送工具内。 该工具包括抓握机构，该工具可在该工具的内腔内和不具有内腔的情况下交替地夹持和释放装置延伸部，例如，在该工具已经从整体上撤出之后定位延伸部的远端 初始部署的设备。
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公开(公告)号：US09504837B2
公开(公告)日：2016-11-29
申请号：US14063766
申请日：2013-10-25
Applicant: Medtronic, Inc.
Inventor： Wade M Demmer , Todd J Sheldon , Robert W Stadler , Xusheng Zhang
CPC classification number: A61N1/3712 , A61N1/3601 , A61N1/36114 , A61N1/371
Abstract: A medical device system performs a method for determining pacing threshold data. Signals are received from a cardiac capture sensor and a phrenic nerve stimulation sensor. A cardiac capture threshold is determined from the cardiac capture sensor signal and a phrenic nerve stimulation threshold is determined from the phrenic nerve stimulation sensor signal for multiple pacing electrode vectors.
Abstract translation: 医疗装置系统执行用于确定起搏阈值数据的方法。 从心脏捕获传感器和膈神经刺激传感器接收信号。 从心脏捕获传感器信号确定心脏捕获阈值，并且从多个起搏电极载体的膈神经刺激传感器信号确定膈神经刺激阈值。
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公开(公告)号：US10532212B2
公开(公告)日：2020-01-14
申请号：US15280538
申请日：2016-09-29
Applicant: Medtronic, Inc.
Inventor： Vincent E Splett , Todd J Sheldon , Yong K Cho , Wade M Demmer , Mark K Erickson
Abstract: An intracardiac ventricular pacemaker is configured to detect a ventricular diastolic event from a motion signal received by a pacemaker control circuit from a motion sensor. The control circuit starts an atrial refractory period having an expiration time set based on a time of the detection of the ventricular diastolic event. The control circuit detects an atrial systolic event from the motion signal after expiration of the atrial refractory period and controls a pulse generator of the pacemaker to deliver a pacing pulse to a ventricle of a patient's heart at a first atrioventricular pacing time interval after the atrial systolic event detection.
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Patent Agency Ranking
16.发明授权公开(公告)号：US10525270B2
公开(公告)日：2020-01-07
申请号：US14605040
申请日：2015-01-26
Applicant: Medtronic, Inc.
Inventor： Todd J Sheldon , Wade M Demmer
Abstract: According to some methods, for example, preprogrammed in a microprocessor element of an implantable cardiac pacing system, at least one of a number of periodic pacing threshold searches includes steps to reduce an evoked response amplitude threshold for evoked response signal detection. The reduction may be to a minimum value measurable above zero, for example, as determined by establishing a ‘noise floor’. Alternately, amplitudes of test pacing pulses and corresponding post pulse signals are collected and reviewed to search for a break, to determine a lower value to which the evoked response threshold may be adjusted without detecting noise. Subsequent to reducing the threshold, if no evoked response signal is detected for a test pulse applied at or above a predetermined maximum desirable pulse energy, an operational pacing pulse energy is set to greater than or equal to the maximum desirable in conjunction with a reduction in pacing rate.
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公开(公告)号：US10512424B2
公开(公告)日：2019-12-24
申请号：US14139092
申请日：2013-12-23
Applicant: Medtronic, Inc.
Inventor： Wade M Demmer , Todd J Sheldon
Abstract: A medical device and associated method evaluate vectors of a multi-dimensional accelerometer by receiving a signal from the accelerometer for each of the vectors and determining a metric from the signal for each of the vectors during a first sensing condition and during a second sensing condition. The difference between the metrics determined for the first sensing condition and the second sensing condition for each of the vectors is determined. One of the vectors is selected, based upon the determined differences, for monitoring the patient.
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公开(公告)号：US10441796B2
公开(公告)日：2019-10-15
申请号：US14644878
申请日：2015-03-11
Applicant: Medtronic, Inc.
Inventor： Wade M Demmer , Todd J Sheldon , Saul E Greenhut , James D Reinke
IPC: A61N1/37 , A61N1/362 , A61N1/365 , A61N1/375 , A61N1/36 , A61B5/00 , A61B5/0464 , A61N1/372 , A61B5/0402
Abstract: The control module of a first pacemaker included in an implantable medical device system including the first pacemaker and a second pacemaker is configured to set a pacing escape interval in response to a far field pacing pulse sensed by the first pacemaker. The far field pacing pulse is a pacing pulse delivered by the second pacemaker. The pacing escape interval is allowed to continue without restarting the in response to a far field intrinsic event sensed by the first pacemaker during the pacing escape interval. The first pacemaker delivers a cardiac pacing pulse to the heart upon expiration of the pacing escape interval.
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公开(公告)号：US10390720B2
公开(公告)日：2019-08-27
申请号：US14694952
申请日：2015-04-23
Applicant: Medtronic, Inc.
Inventor： Thomas A Anderson , Todd J Sheldon , Matthew D Bonner , Noelle C Neafus
IPC: A61B5/04 , A61B5/042 , A61B5/00 , A61N1/362 , A61B5/0452 , A61N1/375 , A61N1/368 , A61N1/372 , A61N1/05
Abstract: A leadless pacing system includes a leadless pacing device and a sensing extension extending from a housing of the leadless pacing device. The sensing extension includes one or more electrodes with which the leadless pacing device may sense electrical cardiac activity. The one or more electrodes of the sensing extension may be carried by a self-supporting body that is configured to passively position the one or more electrodes proximate or within a chamber of the heart other than the chamber in which the LPD is implanted.
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公开(公告)号：US10286214B2
公开(公告)日：2019-05-14
申请号：US15342699
申请日：2016-11-03
Applicant: Medtronic, Inc.
Inventor： Wade M Demmer , Yong K Cho , Mark K Erickson , Michael F Hess , Todd J Sheldon , Vincent E Splett
Abstract: An intracardiac ventricular pacemaker having a motion sensor is configured to produce a motion signal including an atrial systolic event and at least one ventricular diastolic event. The pacemaker is configured to set an atrial refractory period, detect a change in a ventricular diastolic event metric and adjust the atrial refractory period in response to detecting the change. The pacemaker sets set an atrioventricular pacing interval in response to detecting the atrial systolic event from the motion signal after expiration of the atrial refractory period.
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