RF ablation probes with tine valves

    公开(公告)号:US08409193B2

    公开(公告)日:2013-04-02

    申请号:US13029863

    申请日:2011-02-17

    IPC分类号: A61B18/14

    摘要: A tissue ablation probe is provided. The tissue ablation probe comprises an elongated shaft, at least one electrode tine carried by the elongated shaft, at least one tine exit from which the electrode tine(s) can be deployed from the elongated shaft and retracted within the elongated shaft, and a sheath covering the electrode tine exit(s). The sheath may, e.g., line an exterior surface of the elongated shaft or an interior surface of the elongated shaft. The sheath has at least one tine valve (e.g., a slit) positioned over the electrode tine exit(s) and configured to open when the electrode tine is deployed and to close when the electrode tine(s) is retracted. In one embodiment, the tine valve(s) is configured to open in response to pressure exerted during deployment of the electrode tine(s). In another embodiment, the tine valve(s) is configured to hinder the entry of biological material within the elongated shaft. In one embodiment, the sheath is pliable, such that the tine valve(s) can more easily hinder the entry of the biological material.

    Radiofrequency ablation device
    2.
    发明授权
    Radiofrequency ablation device 有权
    射频消融装置

    公开(公告)号:US08216226B2

    公开(公告)日:2012-07-10

    申请号:US12099062

    申请日:2008-04-07

    IPC分类号: A61B18/18

    摘要: A RF ablation device includes a probe assembly that has an elongate cannula having a lumen disposed interiorly of an external wall of the cannula. The elongate cannula includes a plurality of slots formed within the external wall that provide access to the lumen. The probe assembly includes an electrode member that is slidably disposed within the elongate cannula, the electrode member including a plurality of tines configured for passage through the plurality of slots. The slots are disposed in a staggered arrangement or pattern about the external wall of the cannula. The staggered arrangement of slots may be used in a monopolar or bipolar arrangement of the electrodes on the cannula. A bipolar arrangement of electrodes using the staggered configuration produces larger ablation areas in a shorter period of time as compared to prior designs.

    摘要翻译: RF消融装置包括探针组件,该探针组件具有细长插管,该插管具有设置在套管的外壁内部的内腔。 细长插管包括形成在外壁内的多个槽,其提供对腔的通路。 探针组件包括可滑动地设置在细长插管内的电极构件,电极构件包括构造成通过多个槽的多个尖齿。 狭槽围绕套管的外壁以交错布置或图案布置。 槽的交错布置可以用于插管上的电极的单极或双极布置。 与现有设计相比,使用交错配置的电极的双极布置在更短的时间段内产生较大的消融区域。

    RF ABLATION PROBES WITH TINE VALVES
    3.
    发明申请
    RF ABLATION PROBES WITH TINE VALVES 有权
    带有阀门的射频消除探头

    公开(公告)号:US20110137310A1

    公开(公告)日:2011-06-09

    申请号:US13029863

    申请日:2011-02-17

    IPC分类号: A61B18/14

    摘要: A tissue ablation probe is provided. The tissue ablation probe comprises an elongated shaft, at least one electrode tine carried by the elongated shaft, at least one tine exit from which the electrode tine(s) can be deployed from the elongated shaft and retracted within the elongated shaft, and a sheath covering the electrode tine exit(s). The sheath may, e.g., line an exterior surface of the elongated shaft or an interior surface of the elongated shaft. The sheath has at least one tine valve (e.g., a slit) positioned over the electrode tine exit(s) and configured to open when the electrode tine is deployed and to close when the electrode tine(s) is retracted. In one embodiment, the tine valve(s) is configured to open in response to pressure exerted during deployment of the electrode tine(s). In another embodiment, the tine valve(s) is configured to hinder the entry of biological material within the elongated shaft. In one embodiment, the sheath is pliable, such that the tine valve(s) can more easily hinder the entry of the biological material.

    摘要翻译: 提供组织消融探针。 所述组织消融探针包括细长轴,由所述细长轴承载的至少一个电极齿条,至少一个齿出口,所述电极齿可以从所述至少一个齿出口从所述细长轴展开并缩回到所述细长轴内, 覆盖电极齿出口。 护套可以例如对细长轴的外表面或细长轴的内表面进行排列。 护套具有定位在电极齿出口上方的至少一个齿阀(例如狭缝),并且构造成当电极齿展开时打开,并且当电极齿被缩回时闭合。 在一个实施例中,齿阀构造成响应于在电极尖的展开期间施加的压力而打开。 在另一个实施例中,齿形阀构造成阻止生物材料进入细长轴内。 在一个实施例中,鞘是柔韧的,使得齿可以更容易地阻碍生物材料的进入。

    Composite material braided insulator
    4.
    发明授权
    Composite material braided insulator 有权
    复合材料编织绝缘子

    公开(公告)号:US07166104B2

    公开(公告)日:2007-01-23

    申请号:US10929298

    申请日:2004-08-30

    IPC分类号: A61B18/14

    摘要: An ablation probe, comprises a distal substantially tubular electrode, a proximal substantially tubular electrode and a substantially tubular dielectric element. A proximal end of the dielectric element is bonded to a distal end of the proximal electrode and a distal end of the dielectric element is bonded to a proximal end of the distal electrode. The dielectric element is formed of a composite material including a fiber braid within a polymeric material.

    摘要翻译: 消融探针包括远侧基本上管状的电极,近端基本上管状的电极和基本管状的电介质元件。 电介质元件的近端接合到近端电极的远端,并且电介质元件的远端接合到远端电极的近端。 电介质元件由包含聚合材料内的纤维编织物的复合材料形成。

    Radiofrequency ablation device
    5.
    发明授权
    Radiofrequency ablation device 有权
    射频消融装置

    公开(公告)号:US08469954B2

    公开(公告)日:2013-06-25

    申请号:US13538947

    申请日:2012-06-29

    IPC分类号: A61B18/18 A61N1/00 A61B8/14

    摘要: A RF ablation device includes a probe assembly that has an elongate cannula having a lumen disposed interiorly of an external wall of the cannula. The elongate cannula includes a plurality of slots formed within the external wall that provide access to the lumen. The probe assembly includes an electrode member that is slidably disposed within the elongate cannula, the electrode member including a plurality of tines configured for passage through the plurality of slots. The slots are disposed in a staggered arrangement or pattern about the external wall of the cannula. The staggered arrangement of slots may be used in a monopolar or bipolar arrangement of the electrodes on the cannula. A bipolar arrangement of electrodes using the staggered configuration produces larger ablation areas in a shorter period of time as compared to prior designs.

    摘要翻译: RF消融装置包括探针组件,该探针组件具有细长插管,该插管具有设置在套管的外壁内部的内腔。 细长插管包括形成在外壁内的多个槽,其提供对腔的通路。 探针组件包括可滑动地设置在细长插管内的电极构件,电极构件包括构造成通过多个槽的多个尖齿。 狭槽围绕套管的外壁以交错布置或图案布置。 槽的交错布置可以用于插管上的电极的单极或双极布置。 与现有设计相比,使用交错配置的电极的双极布置在更短的时间段内产生较大的消融区域。

    RF ablation probes with tine valves
    6.
    发明授权
    RF ablation probes with tine valves 有权
    射频消融探头与齿阀

    公开(公告)号:US07896874B2

    公开(公告)日:2011-03-01

    申请号:US11323941

    申请日:2005-12-29

    IPC分类号: A61B18/14

    摘要: A tissue ablation probe is provided. The tissue ablation probe comprises an elongated shaft, at least one electrode tine carried by the elongated shaft, at least one tine exit from which the electrode tine(s) can be deployed from the elongated shaft and retracted within the elongated shaft, and a sheath covering the electrode tine exit(s). The sheath may, e.g., line an exterior surface of the elongated shaft or an interior surface of the elongated shaft. The sheath has at least one tine valve (e.g., a slit) positioned over the electrode tine exit(s) and configured to open when the electrode tine is deployed and to close when the electrode tine(s) is retracted. In one embodiment, the tine valve(s) is configured to open in response to pressure exerted during deployment of the electrode tine(s). In another embodiment, the tine valve(s) is configured to hinder the entry of biological material within the elongated shaft. In one embodiment, the sheath is pliable, such that the tine valve(s) can more easily hinder the entry of the biological material.

    摘要翻译: 提供组织消融探针。 所述组织消融探针包括细长轴,由所述细长轴承载的至少一个电极齿条,至少一个齿出口,所述电极齿可以从所述至少一个齿出口从所述细长轴展开并缩回到所述细长轴内, 覆盖电极齿出口。 护套可以例如对细长轴的外表面或细长轴的内表面进行排列。 护套具有定位在电极齿出口上方的至少一个齿阀(例如狭缝),并且构造成当电极齿展开时打开,并且当电极齿被缩回时闭合。 在一个实施例中,齿阀构造成响应于在电极尖的展开期间施加的压力而打开。 在另一个实施例中,齿形阀构造成阻止生物材料进入细长轴内。 在一个实施例中,鞘是柔韧的,使得齿可以更容易地阻碍生物材料的进入。

    RADIOFREQUENCY ABLATION DEVICE
    7.
    发明申请
    RADIOFREQUENCY ABLATION DEVICE 有权
    无线电消除装置

    公开(公告)号:US20080255553A1

    公开(公告)日:2008-10-16

    申请号:US12099062

    申请日:2008-04-07

    IPC分类号: A61B18/18

    摘要: A RF ablation device includes a probe assembly that has an elongate cannula having a lumen disposed interiorly of an external wall of the cannula. The elongate cannula includes a plurality of slots formed within the external wall that provide access to the lumen. The probe assembly includes an electrode member that is slidably disposed within the elongate cannula, the electrode member including a plurality of tines configured for passage through the plurality of slots. The slots are disposed in a staggered arrangement or pattern about the external wall of the cannula. The staggered arrangement of slots may be used in a monopolar or bipolar arrangement of the electrodes on the cannula. A bipolar arrangement of electrodes using the staggered configuration produces larger ablation areas in a shorter period of time as compared to prior designs.

    摘要翻译: RF消融装置包括探针组件,该探针组件具有细长插管,该插管具有设置在套管的外壁内部的内腔。 细长插管包括形成在外壁内的多个槽,其提供对腔的通路。 探针组件包括可滑动地设置在细长插管内的电极构件,电极构件包括构造成通过多个槽的多个尖齿。 狭槽围绕套管的外壁以交错布置或图案布置。 槽的交错布置可以用于插管上的电极的单极或双极布置。 与现有设计相比,使用交错配置的电极的双极布置在更短的时间段内产生较大的消融区域。

    RADIOFREQUENCY ABLATION DEVICE
    8.
    发明申请
    RADIOFREQUENCY ABLATION DEVICE 有权
    无线电消除装置

    公开(公告)号:US20120271296A1

    公开(公告)日:2012-10-25

    申请号:US13538947

    申请日:2012-06-29

    IPC分类号: A61B18/18

    摘要: A RF ablation device includes a probe assembly that has an elongate cannula having a lumen disposed interiorly of an external wall of the cannula. The elongate cannula includes a plurality of slots formed within the external wall that provide access to the lumen. The probe assembly includes an electrode member that is slidably disposed within the elongate cannula, the electrode member including a plurality of tines configured for passage through the plurality of slots. The slots are disposed in a staggered arrangement or pattern about the external wall of the cannula. The staggered arrangement of slots may be used in a monopolar or bipolar arrangement of the electrodes on the cannula. A bipolar arrangement of electrodes using the staggered configuration produces larger ablation areas in a shorter period of time as compared to prior designs.

    摘要翻译: RF消融装置包括探针组件,该探针组件具有细长插管,该插管具有设置在套管的外壁内部的内腔。 细长插管包括形成在外壁内的多个槽,其提供对腔的通路。 探针组件包括可滑动地设置在细长插管内的电极构件,电极构件包括构造成通过多个槽的多个尖齿。 狭槽围绕套管的外壁以交错布置或图案布置。 槽的交错布置可以用于插管上的电极的单极或双极布置。 与现有设计相比,使用交错配置的电极的双极布置在更短的时间段内产生较大的消融区域。