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    Irrigated ablation electrode assembly and method for control of temperature
    1.
    发明申请
    Irrigated ablation electrode assembly and method for control of temperature 有权
    灌注消融电极组件及温度控制方法

    公开(公告)号：US20120150175A1

    公开(公告)日：2012-06-14

    申请号：US13402451

    申请日：2012-02-22

    申请人： Huisun Wang ,  Jeremy D. Dando ,  Harry Puryear

    发明人： Huisun Wang ,  Jeremy D. Dando ,  Harry Puryear

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B2017/00084 ,  A61B2018/00577 ,  A61B2218/002

    摘要： Embodiments of the present invention provide an irrigated catheter having irrigation fluid directed at target areas where coagulation is more likely to occur so as to minimize blood coagulation and the associated problems. In one embodiment, an irrigated ablation electrode assembly for use with an irrigated catheter device comprises a proximal member having at least one passageway for a fluid with an outlet disposed at an external surface of the proximal member; and a distal member connected with the proximal member and having an external surface. The distal member includes an electrode. The external surface of the proximal member and the external surface of the distal member meet at an intersection. The at least one passageway of the proximal member is configured to direct a fluid flow through the outlet toward a region adjacent the intersection.

    摘要翻译： 本发明的实施方案提供了一种具有冲洗流体的灌溉导管，该冲洗流体被引导到更可能发生凝结的目标区域，从而使血液凝固和相关问题最小化。 在一个实施例中，一种与灌溉导管装置一起使用的灌溉消融电极组件包括近端构件，其具有用于流体的至少一个通道，其中出口设置在近端构件的外表面处; 以及与所述近端构件连接并具有外表面的远侧构件。 远侧构件包括电极。 近端构件的外表面和远端构件的外表面在相交处相交。 近端构件的至少一个通道构造成将流体流动引导通过邻近交叉点的区域。

    Irrigated ablation electrode assembly and method for control of temperature
    2.
    发明授权
    Irrigated ablation electrode assembly and method for control of temperature 有权
    灌注消融电极组件及温度控制方法

    公开(公告)号：US08394093B2

    公开(公告)日：2013-03-12

    申请号：US13402451

    申请日：2012-02-22

    申请人： Huisun Wang ,  Jeremy D. Dando ,  Harry Puryear

    发明人： Huisun Wang ,  Jeremy D. Dando ,  Harry Puryear

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B2017/00084 ,  A61B2018/00577 ,  A61B2218/002

    摘要： Embodiments of the present invention provide an irrigated catheter having irrigation fluid directed at target areas where coagulation is more likely to occur so as to minimize blood coagulation and the associated problems. In one embodiment, , an irrigated ablation electrode assembly for use with an irrigated catheter device comprises a proximal member having at least one passageway for a fluid with an outlet disposed at an external surface of the proximal member; and a distal member connected with the proximal member and having an external surface. The distal member includes an electrode. The external surface of the proximal member and the external surface of the distal member meet at an intersection. The at least one passageway of the proximal member is configured to direct a fluid flow through the outlet toward a region adjacent the intersection.

    摘要翻译： 本发明的实施方案提供了一种具有冲洗流体的灌溉导管，该冲洗流体被引导到更可能发生凝结的目标区域，从而使血液凝固和相关问题最小化。 在一个实施例中，一种与灌溉导管装置一起使用的灌溉消融电极组件包括近端构件，其具有用于流体的至少一个通道，其中出口设置在近端构件的外表面处; 以及与所述近端构件连接并具有外表面的远侧构件。 远侧构件包括电极。 近端构件的外表面和远端构件的外表面在相交处相交。 近端构件的至少一个通道构造成将流体流动引导通过邻近交叉点的区域。

    Irrigated ablation electrode assembly and method for control of temperature
    3.
    发明授权
    Irrigated ablation electrode assembly and method for control of temperature 有权

    公开(公告)号：US08128621B2

    公开(公告)日：2012-03-06

    申请号：US11948362

    申请日：2007-11-30

    申请人： Huisun Wang ,  Jeremy D. Dando ,  Harry Puryear

    发明人： Huisun Wang ,  Jeremy D. Dando ,  Harry Puryear

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B2017/00084 ,  A61B2018/00577 ,  A61B2218/002

    摘要： Embodiments of the present invention provide an irrigated catheter having irrigation fluid directed at target areas where coagulation is more likely to occur so as to minimize blood coagulation and the associated problems. In one embodiment, an irrigated ablation electrode assembly for use with an irrigated catheter device comprises a proximal member having at least one passageway for a fluid with an outlet disposed at an external surface of the proximal member; and a distal member connected with the proximal member and having an external surface. The distal member includes an electrode. The external surface of the proximal member and the external surface of the distal member meet at an intersection. The at least one passageway of the proximal member is configured to direct a fluid flow through the outlet toward a region adjacent the intersection.

    Cooled ablation catheter with reciprocating flow
    6.
    发明授权
    Cooled ablation catheter with reciprocating flow 有权
    冷却消融导管与往复流动

    公开(公告)号：US08439909B2

    公开(公告)日：2013-05-14

    申请号：US13093508

    申请日：2011-04-25

    申请人： Huisun Wang ,  Jeremy D. Dando

    发明人： Huisun Wang ,  Jeremy D. Dando

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B2018/00029 ,  A61B2018/00035 ,  A61B2018/00196 ,  A61B2018/0022 ,  A61B2218/002

    摘要： The invention relates to an ablation catheter which controls the temperature and reduces the coagulation of biological fluids on an electrode of a catheter, prevents the impedance rise of tissue in contact with the electrode, and maximizes the potential energy transfer to the tissue, thereby allowing an increase in the lesion size produced by the ablation. The electrode includes passages positioned to allow blood and other biological fluids to flow into and out of an inner cavity of the electrode. This fluid flow produced the desired cooling effect and is accomplished, for example, by a reciprocating plunger or piston, or by a balloon that is alternately inflated and deflated.

    摘要翻译： 本发明涉及一种消融导管，其控制温度并减少导管电极上生物流体的凝结，防止与电极接触的组织的阻抗上升，并使能量传递到组织最大化，从而允许 增加消融产生的病变大小。 电极包括定位成允许血液和其他生物流体流入和流出电极的内腔的通道。 该流体流产生期望的冷却效果，并且例如通过往复式柱塞或活塞或交替地膨胀和放气的气球来实现。

    Cooled ablation catheter with reciprocating flow
    7.
    发明申请
    Cooled ablation catheter with reciprocating flow 有权

    公开(公告)号：US20110202054A1

    公开(公告)日：2011-08-18

    申请号：US13093508

    申请日：2011-04-25

    申请人： Huisun Wang ,  Jeremy D. Dando

    发明人： Huisun Wang ,  Jeremy D. Dando

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B2018/00029 ,  A61B2018/00035 ,  A61B2018/00196 ,  A61B2018/0022 ,  A61B2218/002

    摘要： The invention relates to an ablation catheter which controls the temperature and reduces the coagulation of biological fluids on an electrode of a catheter, prevents the impedance rise of tissue in contact with the electrode, and maximizes the potential energy transfer to the tissue, thereby allowing an increase in the lesion size produced by the ablation. The electrode includes passages positioned to allow blood and other biological fluids to flow into and out of an inner cavity of the electrode. This fluid flow produced the desired cooling effect and is accomplished, for example, by a reciprocating plunger or piston, or by a balloon that is alternately inflated and deflated.

    Cooled ablation catheter with reciprocating flow
    8.
    发明授权
    Cooled ablation catheter with reciprocating flow 失效
    冷却消融导管与往复流动

    公开(公告)号：US07951143B2

    公开(公告)日：2011-05-31

    申请号：US11646255

    申请日：2006-12-28

    申请人： Huisun Wang ,  Jeremy D. Dando

    发明人： Huisun Wang ,  Jeremy D. Dando

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B2018/00029 ,  A61B2018/00035 ,  A61B2018/00196 ,  A61B2018/0022 ,  A61B2218/002

    摘要： The invention relates to an ablation catheter which controls the temperature and reduces the coagulation of biological fluids on an electrode of a catheter, prevents the impedance rise of tissue in contact with the electrode, and maximizes the potential energy transfer to the tissue, thereby allowing an increase in the lesion size produced by the ablation. The electrode includes passages positioned to allow blood and other biological fluids to flow into and out of an inner cavity of the electrode. This fluid flow produced the desired cooling effect and is accomplished, for example, by a reciprocating plunger or piston, or by a balloon that is alternately inflated and deflated.

    摘要翻译： 本发明涉及一种消融导管，其控制温度并减少导管电极上生物流体的凝结，防止与电极接触的组织的阻抗上升，并使能量传递到组织最大化，从而允许 增加消融产生的病变大小。 电极包括定位成允许血液和其他生物流体流入和流出电极的内腔的通道。 该流体流产生期望的冷却效果，并且例如通过往复式柱塞或活塞或交替地膨胀和放气的气球来实现。

    Ablation electrode assembly with insulated distal outlet
    9.
    发明申请
    Ablation electrode assembly with insulated distal outlet 有权
    消融电极组件，绝缘远端出口

    公开(公告)号：US20090259222A1

    公开(公告)日：2009-10-15

    申请号：US12440866

    申请日：2007-10-10

    申请人： Huisun Wang ,  Jeremy D. Dando ,  Harry A. Puryear

    发明人： Huisun Wang ,  Jeremy D. Dando ,  Harry A. Puryear

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B2018/00035 ,  A61B2018/00101 ,  A61B2018/00791 ,  A61B2018/1472

    摘要： The present invention relates to improved ablation electrodes (10, 10′) and catheter assemblies (12), as well as methods useful in conjunction with irrigated ablation catheters. An irrigated ablation electrode assembly (10, 10′) includes a proximal member (18, 18′) having an outer surface (22), an inner lumen (26, 26′) and a proximal passageway (24). The proximal passageway (24) extends from the inner lumen (26, 26′) to the outer surface (22) of the proximal member (18, 18′) . The assembly (10, 10′) further includes a distal member (20) having a distal end (30) and a distal passageway (28) extending from the inner lumen (26, 26′) through the distal member (20) to the distal end (30). Embodiments of the present invention include an irrigated catheter assembly (12) configured to direct irrigation fluid to target areas where coagulation is more likely to occur to, among other things, better minimize blood coagulation and associated problems.

    摘要翻译： 本发明涉及改进的消融电极（10,10'）和导管组件（12）以及与冲洗消融导管结合使用的方法。 灌溉消融电极组件（10,10'）包括具有外表面（22），内腔（26,26'）和近侧通道（24）的近端构件（18,18'）。 近侧通道（24）从内腔（26,26'）延伸到近端构件（18,18'）的外表面（22）。 组件（10,10'）还包括具有远端（30）的远端构件（20）和从内腔（26,26'）穿过远侧构件（20）延伸到远端构件（20）的远端通道（28） 远端（30）。 本发明的实施例包括灌溉导管组件（12），其被配置为将冲洗流体引导到更可能发生凝结的目标区域，以便更好地最小化血液凝固和相关问题。

    Irrigated ablation catheter system with pulsatile flow to prevent thrombus
    10.
    发明申请
    Irrigated ablation catheter system with pulsatile flow to prevent thrombus 有权
    灌注式消融导管系统具有脉动流量，可预防血栓

    公开(公告)号：US20080161795A1

    公开(公告)日：2008-07-03

    申请号：US11646275

    申请日：2006-12-28

    申请人： Huisun Wang ,  Jeremy D. Dando ,  Hong Cao

    发明人： Huisun Wang ,  Jeremy D. Dando ,  Hong Cao

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B2018/00011 ,  A61B2018/00029 ,  A61B2018/00577 ,  A61B2218/002

    摘要： The invention relates to an ablation catheter which controls the temperature and reduces the coagulation of biological fluids on an electrode of a catheter, prevents the impedance rise of tissue in contact with the electrode, and maximizes the potential energy transfer to the tissue, thereby allowing an increase in the lesion size produced by the ablation. The electrode includes passages positioned to allow saline flow out of an inner cavity of the electrode. This fluid flow is pulsatile to increase turbulence, reducing areas of stagnant flow, and produces a desired cooling effect.

    摘要翻译： 本发明涉及一种消融导管，其控制温度并减少导管电极上生物流体的凝结，防止与电极接触的组织的阻抗上升，并使能量传递到组织最大化，从而允许 增加消融产生的病变大小。 电极包括定位成允许盐水从电极的内腔流出的通道。 这种流体流动是脉动的，以增加湍流，减少滞留流动的面积，并产生所需的冷却效果。