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公开(公告)号：US11166679B2
公开(公告)日：2021-11-09
申请号：US16664354
申请日：2019-10-25
IPC分类号： A61B5/00 , G16H50/20 , G16H50/30 , A61B5/283 , A61N1/365 , A61N1/39 , A61B5/02 , A61B7/04 , A61B5/11
摘要： Devices and methods for detecting an event using a variable threshold. A patient monitoring system can receive physiologic information and compare the information to an onset threshold. When the onset threshold is exceeded, the system shifts to a reset threshold that is different than the onset threshold. When the reset threshold is crossed, the system shifts back to the onset threshold.
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公开(公告)号：US11160989B2
公开(公告)日：2021-11-02
申请号：US15925146
申请日：2018-03-19
摘要： A leadless pacing device may include a power supply providing a power supply voltage, a housing having a first end, a second end, and a side extending between the first end and the second end, and a set of electrodes supported by the housing and in communication with the power supply. The housing may be angled to follow a contour of a patient's heart when the housing is positioned within the coronary sinus of the patient's heart. In some cases, an angled portion of the housing may include a smooth-curve. In some cases, an angled portion of the housing may include a first portion of the housing and a second portion of the housing at an angle of less than one-hundred-eighty degrees with respect to the first portion of the housing. One or more of the electrodes may be exposed on a concave side of the angled housing.
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公开(公告)号：US11147964B2
公开(公告)日：2021-10-19
申请号：US16390571
申请日：2019-04-22
发明人： Andrew L. De Kock , G. Shantanu Reddy , Peter Hall , Christopher Alan Fuhs , Bryan Peter Nelson
IPC分类号： A61N1/39 , A61N1/375 , A61N1/05 , A61B17/068 , A61B17/064
摘要： Retainer devices and methods are configured for securing medical devices subcutaneously in a patient. The retainer device may include first and second arms connected by a bridge, the retainer clip configured to move between a first orientation in which lower surfaces of the first and second arms face each other, and a second orientation in which the first and second arms extend laterally from opposite sides of the bridge, wherein the clip is biased in the second orientation. Another example includes a coil and delivery device in which the delivery device holds the coil in a general straight configuration until release; when released the coil wraps about a medical device and holds the device to the subcutaneous tissue.
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公开(公告)号：US11141595B2
公开(公告)日：2021-10-12
申请号：US16526393
申请日：2019-07-30
发明人： Brendan E. Koop
摘要： An implantable medical device (IMD) may include a housing having a proximal end and a distal end and a set of one or more electrodes connected to but spaced apart from the housing. The IMD may further include a controller disposed within the housing, wherein the controller is configured to sense cardiac electrical signals, and deliver electrical stimulation pulses via the first set of one or more electrodes. In some embodiments, a first portion of the housing is configured to be disposed at least partly within a coronary sinus of a patient's heart and a second portion of the housing is configured to be disposed at least partly within a right atrium of the patient's heart.
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75.发明授权公开(公告)号：US11103709B2
公开(公告)日：2021-08-31
申请号：US16175302
申请日：2018-10-30
摘要： Systems and methods for pacing cardiac conductive tissue are described. A medical system includes an electrostimulation circuit that may generate His-bundle pacing (HBP) pulses for delivery at or near the His bundle. In response to the delivery of the HBP pulse, the system senses a near-field cardiac activity representative of excitation of a para-Hisian myocardial tissue, and a far-field cardiac activity representative of excitation of the His bundle and a ventricle. The system classifies a tissue response to HBP into one of a plurality of capture types based on the sensed near-field and far-field cardiac activities. The system includes a control circuit to adjust one or more stimulation parameters based on the classified capture type. The electrostimulation circuit generates and delivers the HBP pulses according to the adjusted stimulation parameters to excite the His bundle.
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公开(公告)号：US20210257849A1
公开(公告)日：2021-08-19
申请号：US17174891
申请日：2021-02-12
摘要： Improved devices, circuits and methods of operation in implantable stimulus systems. An implantable defibrillator may comprise a charging circuit using a transformer to store and build up energy on an HV capacitor or capacitor stack, with the HV capacitor in turn coupled to an H-bridge output circuit having low and high sides for issuing therapy. A current monitoring circuitry is provided on the low side of the H-Bridge and used to form a feedback loop to control current into a transformer that converts battery voltage to a signal that charges the HV capacitor to control current through the H-bridge.
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公开(公告)号：US20210252296A1
公开(公告)日：2021-08-19
申请号：US17173723
申请日：2021-02-11
IPC分类号： A61N1/39
摘要： Improved devices, circuits and methods of operation in implantable stimulus systems. An implantable defibrillator may comprise an H-bridge output circuit having low and high sides, with a current controlling circuit coupled to the high side of the H-bridge output circuit and a current monitoring circuit coupled to the low side of the H-bridge output circuit. Alternate current paths to the output of the H-bridge, or to the H-Bridge itself, are used for delivering different therapies to the patient.
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公开(公告)号：US20210252295A1
公开(公告)日：2021-08-19
申请号：US17175063
申请日：2021-02-12
IPC分类号： A61N1/375
摘要： Embodiments of the present disclosure relate to implantable medical devices. According to an exemplary embodiment, a method for forming an electrode on an implantable medical device (IMD), comprises forming a nonconductive body comprising a well having a bottom surface and at least one side surface extending from the bottom surface. The method further comprises forming a conduit through the bottom surface and inserting the nonconductive body into an opening in an external surface of the IMD. The method also comprises depositing conductive material into the well and coupling the conductive material to a circuit of the IMD via the conduit through the bottom surface of the well.
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公开(公告)号：US11052256B2
公开(公告)日：2021-07-06
申请号：US16224333
申请日：2018-12-18
摘要： An implantable medical device (IMD) includes a heterogeneous housing configured to receive and store one or more components of the IMD. The housing includes an intrinsically non-conductive and non-magnetic base material and at least one dopant with a property of at least one of electrical conductance and magnetic permeability. The base material and the dopant form a first region of the housing including a first skin depth and a second region of the housing including a second skin depth different than the first skin depth.
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公开(公告)号：US11052255B2
公开(公告)日：2021-07-06
申请号：US16256746
申请日：2019-01-24
发明人： Amy Jean Brisben , David J. Ternes , Allan Charles Shuros , Deepa Mahajan , David L. Perschbacher
摘要： Systems and methods for pacing cardiac conductive tissue are described. A medical system includes an electrostimulation circuit to generate His-bundle pacing (HBP) pulses. A sensing circuit senses a physiologic signal, and detect a local His-bundle activation discrete from a pacing artifact of the HBP pulse. A control circuit verifies capture status in response to the HBP pulses. Based on the capture status, the control circuit determines one or more pacing thresholds including a selective HBP threshold representing a threshold strength to capture only the His bundle but not the local myocardium, and a non-selective HBP threshold representing a threshold strength to capture both the His bundle and the local myocardium. The electrostimulation circuit may deliver HBP pulses based on the selective and non-selective HBP thresholds.
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