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    APPARATUS AND METHODS FOR RENAL DENERVATION ABLATION
    2.
    发明公开
    APPARATUS AND METHODS FOR RENAL DENERVATION ABLATION 审中-公开

    公开(公告)号：US20230190368A1

    公开(公告)日：2023-06-22

    申请号：US18170348

    申请日：2023-02-16

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： Gary Long

    IPC: A61B18/14 ,  A61B18/12

    CPC classification number: A61B18/1492 ,  A61B18/1206 ,  A61B2018/00404

    Abstract: A catheter device for renal denervation ablation includes a flexible catheter shaft having an electrically insulating expandable member in its distal portion with at least one electrode located proximal to the member, at least one electrode located distal to the member, and with openings in the distal shaft with at least one opening proximal to the proximal electrode and one opening distal to the distal electrode of said electrode pair, said openings connected through an inner lumen in the catheter that provides a path for blood to flow through the expandable member. In one embodiment, the device comprises a flexible catheter shaft with a multiplicity of recessed paired electrodes disposed in recessed spaces in its distal portion, such that an electrically conducting portion of each electrode is exposed to the exterior of the catheter within a recessed space, and with an electrical insulator separating the electrodes of each pair.

    SYSTEMS, DEVICES, AND METHODS FOR SIGNAL GENERATION
    5.
    发明申请
    SYSTEMS, DEVICES, AND METHODS FOR SIGNAL GENERATION 有权

    公开(公告)号：US20220273945A1

    公开(公告)日：2022-09-01

    申请号：US17744019

    申请日：2022-05-13

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： William Bowers ,  Raju Viswanathan ,  Gary Long

    IPC: A61N1/32 ,  A61B18/12 ,  A61B18/14

    Abstract: Systems, devices, and methods for electroporation ablation therapy are disclosed, with the system including a pulse waveform signal generator for medical ablation therapy that may be coupled to an ablation device including at least one electrode for ablation pulse delivery to tissue. The signal generator may generate and deliver voltage pulses to the ablation device in the form of a pulse waveform in a predetermined sequence where the signal generator may independently configure a set of electrodes of an ablation device. The signal generator may further perform active monitoring of a set of electrode channels and discharge excess energy using the set of electrode channels.

    Method and apparatus for rapid and safe pulmonary vein cardiac ablation
    6.
    发明授权
    Method and apparatus for rapid and safe pulmonary vein cardiac ablation 有权

    公开(公告)号：US12295648B2

    公开(公告)日：2025-05-13

    申请号：US17099272

    申请日：2020-11-16

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： Gary Long ,  Raju Viswanathan

    IPC: A61B18/14 ,  A61B18/12 ,  A61B17/00 ,  A61B18/00 ,  A61M25/01

    Abstract: An apparatus includes a shaft, the shaft including a plurality of stepped sections along the length of the shaft. The apparatus further includes a plurality of electrodes disposed along the length of the shaft, each electrode characterized by a geometric aspect ratio of the length of the electrode to the outer diameter of the electrode. Each electrode is located at a different stepped section of the plurality of stepped sections of the shaft and includes a set of leads. Each lead of the set of leads is configured to attain an electrical voltage potential of at least about 1 kV. The geometric aspect ratio of at least one electrode of the plurality of electrodes is in the range between about 3 and about 20.

    WIDE-AREA FOCAL ABLATION CATHETER HAVING INSULATED PORTIONS
    7.
    发明申请
    WIDE-AREA FOCAL ABLATION CATHETER HAVING INSULATED PORTIONS 有权

    公开(公告)号：US20250064509A1

    公开(公告)日：2025-02-27

    申请号：US18810160

    申请日：2024-08-20

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： Raju Viswanathan ,  Gary Long ,  Brendan Early Koop

    IPC: A61B18/14 ,  A61B18/00

    Abstract: An electroporation catheter for ablation of cardiac tissue is disclosed. The electroporation catheter includes an elongated shaft having a proximal end and an opposite distal end. The elongated shaft defines an axis. An electrode assembly is coupled to and extends distally from the distal end of the elongated shaft. The electrode assembly is transitionable between a collapsed state and an expanded state. The electrode assembly includes conductive struts that define a spherical shape in the expanded state having a proximal portion coupled to the elongated shaft, a central portion having a maximum radial dimension and a distal portion opposite the elongated shaft. A proximal insulation portion is disposed on the proximal portion of the electrode assembly surrounding each of the plurality of conductive struts. The proximal insulator portion extends from the proximal end to at least the central portion.

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