公开(公告)号：US20190015671A1

公开(公告)日：2019-01-17

申请号：US16132564

申请日：2018-09-17

Applicant: Medtronic, Inc.

Inventor： David A. ANDERSON ,  Mark T. MARSHALL ,  Vladimir P. NIKOLSKI ,  Robert T. SAWCHUK ,  AMY E. THOMPSON-NAUMAN ,  John D. WAHLSTRAND ,  Gregory A. YOUNKER

IPC: A61N1/39 ,  A61N1/375 ,  A61N1/37 ,  A61N1/362 ,  A61N1/05

Abstract: An extra-cardiovascular implantable cardioverter defibrillator (ICD) having a low voltage therapy module and a high voltage therapy module is configured to select, by a control module of the ICD, a pacing output configuration from at least a low-voltage pacing output configuration of the low voltage therapy module and a high-voltage pacing output configuration of the high voltage therapy module. The high voltage therapy module includes a high voltage capacitor having a first capacitance and the low voltage therapy module includes a plurality of low voltage capacitors each having up to a second capacitance that is less than the first capacitance. The ICD control module controls a respective one of the low voltage therapy module or the high voltage therapy module to deliver extra-cardiovascular pacing pulses in the selected pacing output configuration via extra-cardiovascular electrodes coupled to the ICD.

公开(公告)号：US20180250505A1

公开(公告)日：2018-09-06

申请号：US15900831

申请日：2018-02-21

Applicant: Medtronic, Inc.

Inventor： Anthony W. SCHROCK ,  James W. BUSACKER ,  Kevin E. BAUMGART ,  Michael L. HUDZIAK ,  James D. REINKE ,  John D. WAHLSTRAND

IPC: A61N1/02 ,  A61N1/362 ,  A61N1/372 ,  A61N1/39

Abstract: In an example, an implantable medical device (IMD) includes a hold capacitor configured to deliver an electrical therapy pulse, and charge pump circuitry configured to transfer energy from the battery to the hold capacitor. In this example, the charge pump circuitry comprises a plurality of capacitors, and switching circuitry configured to put the charge pump circuitry into a K-factor mode selected from a group of K-factor modes by opening and closing a combination of switches connected to the plurality of capacitors.

公开(公告)号：US20170157413A1

公开(公告)日：2017-06-08

申请号：US15367516

申请日：2016-12-02

Applicant: Medtronic, Inc.

Inventor： David A. ANDERSON ,  Mark T. MARSHALL ,  Vladimir P. NIKOLSKI ,  Robert T. SAWCHUK ,  Amy E. THOMPSON-NAUMAN ,  John D. WAHLSTRAND ,  Gregory A. YOUNKER

IPC: A61N1/39 ,  A61N1/37 ,  A61N1/362 ,  A61N1/375

CPC classification number: A61N1/3962 ,  A61N1/0587 ,  A61N1/3621 ,  A61N1/3706 ,  A61N1/371 ,  A61N1/3712 ,  A61N1/3758 ,  A61N1/3925 ,  A61N1/3987

Abstract: An extra-cardiovascular implantable cardioverter defibrillator (ICD) having a low voltage therapy module and a high voltage therapy module is configured to select, by a control module of the ICD, a pacing output configuration from at least a low-voltage pacing output configuration of the low voltage therapy module and a high-voltage pacing output configuration of the high voltage therapy module. The high voltage therapy module includes a high voltage capacitor having a first capacitance and the low voltage therapy module includes a plurality of low voltage capacitors each having up to a second capacitance that is less than the first capacitance. The ICD control module controls a respective one of the low voltage therapy module or the high voltage therapy module to deliver extra-cardiovascular pacing pulses in the selected pacing output configuration via extra-cardiovascular electrodes coupled to the ICD.