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公开(公告)号:US20250082392A1
公开(公告)日:2025-03-13
申请号:US18960333
申请日:2024-11-26
Applicant: ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC.
Inventor: Israel Byrd , Jeffrey M. Fish , Jeffrey A. Schweitzer , Daniel J. Potter , Gregory K. Olson , Frederik H. M. Wittkampf , Rene Van Es
Abstract: The present disclosure provides electroporation systems, methods of controlling electroporation systems to limit electroporation arcs through intracardiac catheters, and catheters for electroporation systems. One method of controlling an electroporation system including a direct current (DC) energy source, a return electrode connected to the DC energy source, and a catheter connected to the DC energy source is disclosed. The catheter has a at least one catheter electrode. The method includes positioning the return electrode near a target location within a body and positioning the catheter electrode adjacent the target location within the body. A system impedance is determined with the return electrode positioned near the target location and the catheter electrode positioned within the body. The system impedance is adjusted to a target impedance to limit arcing from the catheter electrode.
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公开(公告)号:US11813410B2
公开(公告)日:2023-11-14
申请号:US16767081
申请日:2018-11-28
Applicant: St. Jude Medical, Cardiology Division, Inc.
Inventor: Gregory K. Olson , Rishi Manda , Travis Dahlen , Troy T. Tegg , Brian M. Monahan , Russell D Terwey
IPC: A61M25/01 , A61B17/34 , A61B17/00 , A61B5/02 , A61M25/00 , A61M25/10 , A61B18/14 , A61B18/02 , A61B18/00 , A61B34/00
CPC classification number: A61M25/0026 , A61M25/0009 , A61M25/0032 , A61M25/0144 , A61M25/10 , A61B18/1492 , A61B34/25 , A61B2017/00327 , A61B2017/00867 , A61B2018/00357 , A61B2018/00577 , A61B2018/00791 , A61B2018/00821 , A61B2018/0212 , A61B2018/1405 , A61B2218/002 , A61M25/0045 , A61M25/0054 , A61M25/0136 , A61M25/0141 , A61M25/0147 , A61M2025/0035 , A61M2025/0036 , A61M2025/0037 , A61M2025/0046 , A61M2025/0063
Abstract: An elongate medical device comprising an expandable structure with an expandable configuration and a collapsed configuration, a handle, operably coupled to the expandable structure, the handle further including a selective movement limiter; and a deflection control member coupled with the distal hub, where the deflection control member is configured to adjust a stiffness of the expandable structure, from a first stiffness to a second stiffness, and maintain the first stiffness or the second stiffness when the selective movement limiter couples with the deflection control member and limits a longitudinal movement of the deflection control member, and wherein the deflection control member is configured to move freely when the selective movement limiter is not coupled with the deflection control member.
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公开(公告)号:US20220142545A1
公开(公告)日:2022-05-12
申请号:US17437337
申请日:2020-03-05
Applicant: St. Jude Medical, Cardiology Division, Inc.
Inventor: Gregory K. Olson
Abstract: An electrophysiology system for mapping tissue includes a catheter having a plurality of electrodes. The system may be a catheter having a dense collection of small electrodes in fixed positions on its tip. The system may be an electrophysiology apparatus having a catheter, the catheter having a body with a proximal end and a distal end. At the distal end of the catheter body is a distal tip comprising a plurality of electrodes and/or coaxtrodes. A signal processor may be operably connected to the plurality of electrodes and/or coaxtrodes and can measure at least one electrophysiological parameter.
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公开(公告)号:US11039773B2
公开(公告)日:2021-06-22
申请号:US16795335
申请日:2020-02-19
Applicant: St. Jude Medical, Cardiology Division, Inc.
Inventor: Terry L. Sterrett , John J. Crow , Eric Lim , Gregory K. Olson , Jeffrey A. Schweitzer
Abstract: An integrated electrode structure can comprise a catheter shaft comprising a proximal end and a distal end, the catheter shaft defining a catheter shaft longitudinal axis. A flexible tip portion can be located adjacent to the distal end of the catheter shaft, the flexible tip portion comprising a flexible framework. A plurality of microelectrodes can be disposed on the flexible framework and can form a flexible array of microelectrodes adapted to conform to tissue. A plurality of conductive traces can be disposed on the flexible framework, each of the plurality of conductive traces can be electrically coupled with a respective one of the plurality of microelectrodes.
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公开(公告)号:US10987490B2
公开(公告)日:2021-04-27
申请号:US16311571
申请日:2017-06-20
Applicant: ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC.
Inventor: Gregory K. Olson , Troy T. Tegg
Abstract: A steerable introducer has a proximal end and a distal end, and includes a steerable sheath having a proximal end and a distal end. The steerable sheath includes an outer layer extending from the proximal end to the distal end of the steerable sheath, and an inner liner disposed within the outer layer and extending from the proximal end to the distal end of the steerable sheath. A first pair of pull wires is disposed between the inner liner and the outer layer, and extends from the proximal end to the distal end of the steerable sheath. A second pair of pull wires is disposed between the inner liner and the outer layer and extends from the proximal end to the distal end of the steerable sheath.
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公开(公告)号:US20200253497A1
公开(公告)日:2020-08-13
申请号:US16795335
申请日:2020-02-19
Applicant: St. Jude Medical, Cardiology Division, Inc.
Inventor: Terry L. Sterrett , John J. Crow , Eric Lim , Gregory K. Olson , Jeffrey A. Schweitzer
Abstract: An integrated electrode structure can comprise a catheter shaft comprising a proximal end and a distal end, the catheter shaft defining a catheter shaft longitudinal axis. A flexible tip portion can be located adjacent to the distal end of the catheter shaft, the flexible tip portion comprising a flexible framework. A plurality of microelectrodes can be disposed on the flexible framework and can form a flexible array of microelectrodes adapted to conform to tissue. A plurality of conductive traces can be disposed on the flexible framework, each of the plurality of conductive traces can be electrically coupled with a respective one of the plurality of microelectrodes.
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公开(公告)号:US20200085483A1
公开(公告)日:2020-03-19
申请号:US16467333
申请日:2017-12-04
Applicant: ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC.
Inventor: Troy T. Tegg , Gregory K. Olson
IPC: A61B18/02
Abstract: The instant disclosure relates to electrophysiology catheters for tissue ablation within a cardiac muscle. In particular, the instant disclosure relates to an ablation balloon and catheter shaft that deflects to conform to a shape of a target pulmonary vein receiving ablation therapy for a cardiac arrhythmia, for example. The deflection of the catheter shaft enables a lesion line along a circumference of the target pulmonary vein with improved consistency.
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公开(公告)号:US20190282116A1
公开(公告)日:2019-09-19
申请号:US16293200
申请日:2019-03-05
Applicant: St. Jude Medical, Cardiology Division, Inc.
Inventor: Gregory K. Olson
Abstract: Aspects of the present disclosure are directed to flexible high-density mapping catheters with a high-density array of mapping electrodes. These mapping catheters may be used to detect electrophysiological characteristics of tissue in contact with the electrodes, and may be used to diagnose cardiac conditions, such as cardiac arrhythmias for example.
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9.
公开(公告)号:US20180289417A1
公开(公告)日:2018-10-11
申请号:US15947091
申请日:2018-04-06
Applicant: St. Jude Medical, Cardiology Division, Inc.
Inventor: Jeff Schweitzer , Gregory K. Olson
Abstract: The present disclosure provides electroporation systems and methods of preconditioning tissue for electroporation therapy. An electroporation generator includes an electroporation circuit, a preconditioning circuit, and a controller. The electroporation circuit is configured to be coupled to a catheter for delivering the electroporation therapy to target tissue of the patient. The electroporation circuit is further configured to transmit an electroporation signal through the catheter. The preconditioning circuit is configured to be coupled to a preconditioning electrode for stimulating skeletal muscle tissue of the patient. The preconditioning circuit is further configured to transmit a preconditioning signal to the preconditioning electrode. The controller is coupled to the electroporation circuit and the preconditioning circuit, and is configured to synchronize transmissions of the electroporation signal and the preconditioning signal such that the preconditioning signal is transmitted prior to transmission of the electroporation signal.
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公开(公告)号:US20180138619A1
公开(公告)日:2018-05-17
申请号:US15815021
申请日:2017-11-16
Applicant: St. Jude Medical, Cardiology Division, Inc.
Inventor: Troy Tegg , Gregory K. Olson , Derek Sutermeister , Nicholas Strom , David Kim , Michael C. Bednarek , Dale Just
IPC: H01R13/02 , H01R29/00 , H01R13/193
CPC classification number: H01R13/025 , A61B2562/0209 , A61B2562/225 , H01R12/59 , H01R13/193 , H01R13/6658 , H01R24/28 , H01R29/00
Abstract: The present disclosure relates to a high capacity medical device connector utilizing flexible circuits. The use of flexible circuits allows for increased channel capacity for use with future designs and capabilities of medical devices. The assembly may include pre-mounted electrical components. The connector may be designed to connect two flexible circuits. The connector may also be designed to connect a flexible circuit with existing technology, such as a pin-to-socket connector.
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