公开(公告)号：US20230019319A1

公开(公告)日：2023-01-19

申请号：US17810905

申请日：2022-07-06

Applicant: Medtronic, Inc.

Inventor： Adam K. Himes ,  Charles D. Swerdlow ,  Scott A. Hoium ,  Chad A. Bounds

IPC: A61N1/372 ,  A61N1/08

Abstract: A method comprises acquiring a set of measurements of impedance of an implantable medical lead, determining a metric of variability of the set of impedance measurements, determining that the metric of variability satisfies a criterion, and generating a lead integrity alert in response to the metric of variability satisfying the criterion.

公开(公告)号：US10668277B2

公开(公告)日：2020-06-02

申请号：US15836283

申请日：2017-12-08

Applicant: Medtronic, Inc.

Inventor： Bruce D. Gunderson ,  Charles D. Swerdlow

IPC: A61N1/08 ,  A61B5/042 ,  A61N1/39 ,  A61B5/046 ,  A61N1/37 ,  G16H40/63 ,  A61N1/05 ,  A61N1/372

Abstract: Detecting dislodgement of a ventricular lead coupled to an implantable medical device comprises sensing a near-field cardiac EGM via a first electrode of the ventricular lead and a far-field cardiac EGM via a second electrode of the ventricular lead, identifying, R-waves in the near-field cardiac EGM and the far-field cardiac EGM. determining a near-field value of one or more R-wave amplitude metrics based on amplitudes of R-waves identified in the near-field cardiac EGM and a far-field value of the one or more R-wave amplitude metrics based on amplitudes of R-waves identified in the far-field cardiac EGM, detecting dislodgement of the ventricular lead based on at least one of the near-field value or the far-field value of the one or more R-wave amplitude metrics; and providing a lead dislodgment alert in response to detecting the dislodgement of the ventricular lead.

公开(公告)号：US20180161572A1

公开(公告)日：2018-06-14

申请号：US15836283

申请日：2017-12-08

Applicant: Medtronic, Inc.

Inventor： Bruce D. Gunderson ,  Charles D. Swerdlow

IPC: A61N1/08 ,  A61B5/042 ,  A61B5/046 ,  A61N1/39

Abstract: Detecting dislodgement of a ventricular lead coupled to an implantable medical device comprises sensing a near-field cardiac EGM via a first electrode of the ventricular lead and a far-field cardiac EGM via a second electrode of the ventricular lead, identifying, R-waves in the near-field cardiac EGM and the far-field cardiac EGM. determining a near-field value of one or more R-wave amplitude metrics based on amplitudes of R-waves identified in the near-field cardiac EGM and a far-field value of the one or more R-wave amplitude metrics based on amplitudes of R-waves identified in the far-field cardiac EGM, detecting dislodgement of the ventricular lead based on at least one of the near-field value or the far-field value of the one or more R-wave amplitude metrics; and providing a lead dislodgment alert in response to detecting the dislodgement of the ventricular lead.