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    ABLATION ELECTRODE ASSEMBLIES AND METHODS FOR USING SAME
    3.
    发明申请
    ABLATION ELECTRODE ASSEMBLIES AND METHODS FOR USING SAME 审中-公开

    公开(公告)号：US20180071018A1

    公开(公告)日：2018-03-15

    申请号：US15709287

    申请日：2017-09-19

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

    Inventor： Steven C. Christian ,  Reed R. Heimbecher

    IPC: A61B18/14 ,  A61B18/00

    CPC classification number: A61B18/1492 ,  A61B2018/00101 ,  A61B2018/00714 ,  A61B2018/00791 ,  A61B2218/002

    Abstract: Ablation electrode assemblies include an inner core member and an outer shell surrounding the inner core member. The inner core member and the outer shell define a space or separation region therebetween. The inner core member is constructed from a thermally insulative material having a reduced thermal conductivity. In an embodiment, the space is a sealed or evacuated region. In other embodiments, irrigation fluid flows within the space. The ablation electrode assembly further includes at least one thermal sensor in some embodiments. Methods for providing irrigation fluid during cardiac ablation of targeted tissue are disclosed that include calculating the energy delivered to irrigation fluid as it flows within the ablation electrode assembly through temperature measurement of the irrigation fluid. Pulsatile flow of irrigation fluid can be utilized in some embodiments of the disclosure.

    ABLATION ELECTRODE ASSEMBLIES AND METHODS FOR USING SAME
    6.
    发明申请
    ABLATION ELECTRODE ASSEMBLIES AND METHODS FOR USING SAME 有权

    公开(公告)号：US20230000546A1

    公开(公告)日：2023-01-05

    申请号：US17842777

    申请日：2022-06-16

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

    Inventor： Steven C. Christian ,  Reed R. Heimbecher

    IPC: A61B18/14

    Abstract: Ablation electrode assemblies include an inner core member and an outer shell surrounding the inner core member. The inner core member and the outer shell define a space or separation region therebetween. The inner core member is constructed from a thermally insulative material having a reduced thermal conductivity. In an embodiment, the space is a sealed or evacuated region. In other embodiments, irrigation fluid flows within the space. The ablation electrode assembly further includes at least one thermal sensor in some embodiments. Methods for providing irrigation fluid during cardiac ablation of targeted tissue are disclosed that include calculating the energy delivered to irrigation fluid as it flows within the ablation electrode assembly through temperature measurement of the irrigation fluid. Pulsatile flow of irrigation fluid can be utilized in some embodiments of the disclosure.

    Irrigated ablation electrode assemblies
    7.
    发明授权
    Irrigated ablation electrode assemblies 有权

    公开(公告)号：US10987162B2

    公开(公告)日：2021-04-27

    申请号：US15873574

    申请日：2018-01-17

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

    Inventor： Steven C. Christian

    IPC: A61B18/14 ,  A61B18/00 ,  A61B18/02

    Abstract: An irrigated ablation electrode assembly comprises a distal member, a first manifold, and a second manifold. The distal member includes an outer surface; an inner surface; and at least one radially extending passageway that extends from the inner surface of the distal member to the outer surface of the distal member. The first manifold includes an outer surface, an inner cavity, and at least one radially extending passageway that extends from the inner cavity to the outer surface of the first manifold. The second manifold includes an outer surface, an inner surface, and at least one radially extending passageway that extends from the inner surface of the second manifold to the outer surface of the second manifold. Other irrigated ablation electrode assemblies are also presented.

    IRRIGATED ABLATION ELECTRODE ASSEMBLIES
    9.
    发明申请
    IRRIGATED ABLATION ELECTRODE ASSEMBLIES 有权

    公开(公告)号：US20210282846A1

    公开(公告)日：2021-09-16

    申请号：US17216309

    申请日：2021-03-29

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

    Inventor： Steven C. Christian

    IPC: A61B18/14

    Abstract: An irrigated ablation electrode assembly comprises a distal member, a first manifold, and a second manifold. The distal member includes an outer surface; an inner surface; and at least one radially extending passageway that extends from the inner surface of the distal member to the outer surface of the distal member. The first manifold includes an outer surface, an inner cavity, and at least one radially extending passageway that extends from the inner cavity to the outer surface of the first manifold. The second manifold includes an outer surface, an inner surface, and at least one radially extending passageway that extends from the inner surface of the second manifold to the outer surface of the second manifold. Other irrigated ablation electrode assemblies are also presented.

    MULTI-RATE FLUID FLOW AND VARIABLE POWER DELIVERY FOR ABLATION ELECTRODE ASSEMBLIES USED IN CATHETER ABLATION PROCEDURES
    10.
    发明申请
    MULTI-RATE FLUID FLOW AND VARIABLE POWER DELIVERY FOR ABLATION ELECTRODE ASSEMBLIES USED IN CATHETER ABLATION PROCEDURES 有权

    公开(公告)号：US20210212757A1

    公开(公告)日：2021-07-15

    申请号：US17193859

    申请日：2021-03-05

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

    Inventor： Steven C. Christian ,  Theodore A. Johnson

    IPC: A61B18/14

    Abstract: A system for providing irrigation fluid during ablation of tissue includes a catheter, an electrode assembly, at least one thermal sensor adapted to be connected to the catheter, and a control system. The electrode assembly is adapted to be connected to an ablation generator. The thermal sensor is adapted to be operatively connected to an electronic control unit (ECU). The ECU receives as an input temperature measurement data from the thermal sensor; determines a power delivery rate value for the ablation generator responsive to the temperature measurement data; and outputs the power delivery rate value. The control system also delivers irrigation fluid to the irrigated catheter at a first flow rate in a first time period and at a second flow rate in a second time period that is temporally after the first time period. The second flow rate is at least half of the first flow rate.

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