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    IRRIGATED ABLATION CATHETER HAVING A FLEXIBLE MANIFOLD
    11.
    发明申请
    IRRIGATED ABLATION CATHETER HAVING A FLEXIBLE MANIFOLD 审中-公开
    具有柔性歧管的吸入式吸管

    公开(公告)号：US20150202000A1

    公开(公告)日：2015-07-23

    申请号：US14610843

    申请日：2015-01-30

    Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

    Inventor： Huisun Wang

    IPC: A61B18/14

    CPC classification number: A61B18/1492 ,  A61B2018/00029 ,  A61B2018/00577 ,  A61B2218/002

    Abstract: An irrigated ablation catheter includes a shaft having a proximal end, a distal end, and an irrigation lumen therein. The catheter further includes an electrode assembly coupled to the distal end of the shaft. The electrode assembly includes an ablation electrode and a manifold. The manifold is coupled to each of the distal end of the shaft and the proximal end of the electrode. At least a portion of the manifold is constructed of a flexible material to allow the electrode assembly to deflect. The manifold includes a body, an inner cavity within the body configured for fluid communication with the irrigation lumen, and an irrigation port also within the body and configured for fluid communication with the inner cavity. The irrigation port extends from the inner cavity to the outer surface of the body, and is configured to allow for an irrigating fluid to be distributed from the manifold.

    Abstract translation: 灌洗消融导管包括具有近端，远端和其中的冲洗腔的轴。 导管还包括联接到轴的远端的电极组件。 电极组件包括消融电极和歧管。 歧管联接到轴的远端和电极的近端中的每一个。 歧管的至少一部分由柔性材料构成以允许电极组件偏转。 歧管包括主体，构造成用于与冲洗腔流体连通的主体内部腔体，以及也在主体内并且构造成用于与内腔流体连通的冲洗口。 冲洗口从内腔延伸到主体的外表面，并且构造成允许冲洗流体从歧管分配。

    Irrigated ablation electrode assembly having off-center irrigation passageway
    14.
    发明授权
    Irrigated ablation electrode assembly having off-center irrigation passageway 有权

    公开(公告)号：US10653481B2

    公开(公告)日：2020-05-19

    申请号：US16134503

    申请日：2018-09-18

    Applicant: ST JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC

    Inventor： Huisun Wang ,  Christopher J. Geurkink

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

    Abstract: An irrigated ablation catheter includes a shaft and an electrode assembly affixed to a distal end of the shaft. The distal electrode assembly includes a manifold and an ablation electrode affixed together and extending along a center axis. The electrode has a distal irrigation passageway extending therethrough to an opening at a distal tip of the electrode. The opening of the irrigation passageway is offset in distance from the center axis, and allows a thermal sensor such as a thermocouple to be located in a sensor cavity in the electrode on or near the center axis. One variation involves providing a pair of distal irrigation passageways through the electrode where both of the openings of the passageways are offset from the center axis. The thermal sensor in this variation is located in the sensor cavity substantially on the center axis.

    CONTROLLED IRRIGATED CATHETER ABLATION SYSTEMS AND METHODS THEREOF
    15.
    发明申请
    CONTROLLED IRRIGATED CATHETER ABLATION SYSTEMS AND METHODS THEREOF 审中-公开

    公开(公告)号：US20170273739A1

    公开(公告)日：2017-09-28

    申请号：US15483634

    申请日：2017-04-10

    Applicant: ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC.

    Inventor： Huisun Wang

    IPC: A61B18/14

    CPC classification number: A61B18/1492 ,  A61B2017/00084 ,  A61B2018/00029 ,  A61B2218/002

    Abstract: The present invention relates to open irrigated catheter ablation systems and methods used in connection with open irrigated catheter systems. The systems and related methods can control irrigation fluid flow to obtain temperature responses indicative of temperatures associated with an ablation procedure. Embodiments of the present invention provide irrigated catheter ablation systems having controlled irrigation fluid flow that can be directed at target areas where coagulation is more likely to occur to help minimize blood coagulation and associated problems. The irrigated fluid flow may be regulated in connection with an established or predetermined temperature threshold to improve or better optimize cooling and ablation properties of the system. In embodiments, irrigation flow may be either delayed or intermitted.

    IRRIGATED ABLATION ELECTRODE HAVING SMOOTH EDGES TO MINIMIZE TISSUE CHAR
    17.
    发明申请
    IRRIGATED ABLATION ELECTRODE HAVING SMOOTH EDGES TO MINIMIZE TISSUE CHAR 有权

    公开(公告)号：US20220000549A1

    公开(公告)日：2022-01-06

    申请号：US17379801

    申请日：2021-07-19

    Applicant: St. Jude Medical, Atrial Fibrillation Division Inc

    Inventor： Huisun Wang ,  Sacha C. Hall

    IPC: A61B18/14

    Abstract: The invention relates to ablation catheter electrodes that solve in part the problem of tissue charring during radiofrequency ablation. The electrode assemblies of the invention include passageways that lead from the inner lumen of the assemblies to the surface of the assemblies, wherein the passageways have a smooth conjunction with the outer surface. These smooth conjunctions comprise rounded edges or are chamfered. In the case of rounded edges, the rounded edges can have fixed radii of about 0.002″ to about 0.008″.

    IRRIGATED ABLATION ELECTRODE ASSEMBLY HAVING OFF-CENTER IRRIGATION PASSAGEWAY
    19.
    发明申请
    IRRIGATED ABLATION ELECTRODE ASSEMBLY HAVING OFF-CENTER IRRIGATION PASSAGEWAY 审中-公开

    公开(公告)号：US20190083173A1

    公开(公告)日：2019-03-21

    申请号：US16134503

    申请日：2018-09-18

    Applicant: ST JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC

    Inventor： Huisun Wang ,  Christopher J. Geurkink

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

    Abstract: An irrigated ablation catheter includes a shaft and an electrode assembly affixed to a distal end of the shaft. The distal electrode assembly includes a manifold and an ablation electrode affixed together and extending along a center axis. The electrode has a distal irrigation passageway extending therethrough to an opening at a distal tip of the electrode. The opening of the irrigation passageway is offset in distance from the center axis, and allows a thermal sensor such as a thermocouple to be located in a sensor cavity in the electrode on or near the center axis. One variation involves providing a pair of distal irrigation passageways through the electrode where both of the openings of the passageways are offset from the center axis. The thermal sensor in this variation is located in the sensor cavity substantially on the center axis.

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