Needle and tine deployment mechanism

    公开(公告)号:US10321951B2

    公开(公告)日:2019-06-18

    申请号:US13589956

    申请日:2012-08-20

    Abstract: A needle electrode deployment shaft includes a central member and a plurality of needle electrodes. The central member has a plurality of needle advancement channels formed therein. The needle electrodes are disposed within the advancement channels and each advancement channel terminates in a ramp portion which deflects the needles radially outwardly as they are axially advanced. The ramps may be spirally or acutely configured in order to increase the distance through which the needles may be bent as they are axially advanced. Additionally, the central member may have a radially reduced distal tip in order to decrease tissue insertion forces.

    NEEDLE AND TINE DEPLOYMENT MECHANISM
    18.
    发明申请
    NEEDLE AND TINE DEPLOYMENT MECHANISM 审中-公开
    针灸部署机制

    公开(公告)号:US20120310236A1

    公开(公告)日:2012-12-06

    申请号:US13589956

    申请日:2012-08-20

    Abstract: A needle electrode deployment shaft includes a central member and a plurality of needle electrodes. The central member has a plurality of needle advancement channels formed therein. The needle electrodes are disposed within the advancement channels and each advancement channel terminates in a ramp portion which deflects the needles radially outwardly as they are axially advanced. The ramps may be spirally or acutely configured in order to increase the distance through which the needles may be bent as they are axially advanced. Additionally, the central member may have a radially reduced distal tip in order to decrease tissue insertion forces.

    Abstract translation: 针电极展开轴包括中心构件和多个针电极。 中心构件具有形成在其中的多个针进给通道。 针电极设置在推进通道内,并且每个前进通道终止于斜面部分,该斜坡部分在轴向前进时径向向外偏转针。 斜坡可以是螺旋形或锐利地构造,以便增加针在轴向前进时可以弯曲的距离。 另外,为了减少组织插入力,中心构件可以具有径向减小的远端尖端。

    Rigid delivery systems having inclined ultrasound and needle
    19.
    发明授权
    Rigid delivery systems having inclined ultrasound and needle 有权
    具有倾斜超声波和针头的刚性输送系统

    公开(公告)号:US07815571B2

    公开(公告)日:2010-10-19

    申请号:US11409496

    申请日:2006-04-20

    Abstract: A delivery system includes a rigid shaft, an imaging core, and an interventional core. The rigid delivery shaft has a proximal end, an angled distal tip, and an axial passage therethrough. The imaging core comprises an ultrasound imaging insert disposed within the axial passage. The imaging insert has an ultrasound array within a distal portion thereof, wherein the ultrasound array is tilted relative to a shaft axis. The interventional core comprises a curved ablation needle coupled to the rigid shaft. An angle of needle curvature may be inversely proportional to the ultrasound array tilt and tip angle.

    Abstract translation: 输送系统包括刚性轴,成像芯和介入芯。 刚性输送轴具有近端,成角度的远端,以及穿过其的轴向通道。 成像芯包括设置在轴向通道内的超声成像插入件。 成像插入物在其远端部分内具有超声阵列,其中超声阵列相对于轴轴线倾斜。 介入芯包括耦合到刚性轴的弯曲消融针。 针曲率的角度可能与超声阵列倾斜和尖端角成反比。

    Devices and methods for cannulating a blood vessel
    20.
    发明授权
    Devices and methods for cannulating a blood vessel 有权
    用于插管血管的装置和方法

    公开(公告)号:US06228071B1

    公开(公告)日:2001-05-08

    申请号:US09293592

    申请日:1999-04-16

    CPC classification number: A61M25/0041 A61M25/0009 A61M25/005 A61M2025/0063

    Abstract: A cannula has a distal portion which is angled relative to a proximal portion. The distal portion is straightened during introduction with a stiffening element. After introduction, the stiffening element is removed so that the distal portion angulates relative to the proximal portion so that the cannula can be moved out of the surgical field. The cannula preferably includes a stabilizing ring having suture holders. The stabilizing ring is also preferably angled relative to the cannula.

    Abstract translation: 套管具有相对于近端部分成角度的远侧部分。 在引入期间,远端部分具有加强元件。 在引入之后,去除加强元件,使得远侧部分相对于近端部分成角度,使得套管可以移出外科手术区域。 套管优选地包括具有缝线保持器的稳定环。 稳定环也优选相对于套管成角度。

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