NEEDLE AND TINE DEPLOYMENT MECHANISM
    36.
    发明申请
    NEEDLE AND TINE DEPLOYMENT MECHANISM 有权
    针灸部署机制

    公开(公告)号:US20100222677A1

    公开(公告)日:2010-09-02

    申请号:US12712969

    申请日:2010-02-25

    IPC分类号: A61B19/00 A61B8/00 A61B18/18

    摘要: 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.

    摘要翻译: 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。

    Surgical retractor and method of retracting
    40.
    发明授权
    Surgical retractor and method of retracting 失效
    手术牵开器和收缩方法

    公开(公告)号:US5984867A

    公开(公告)日:1999-11-16

    申请号:US911877

    申请日:1997-08-15

    IPC分类号: A61B17/00 A61B17/02

    摘要: A surgical retractor has a frame and first and second retractor blades coupled to the frame. The retractor blades engage opposite sides of an incision in a patient's body and are relatively movable toward or away from each other along a first axis. When using the retractor in lift mode, a foot is coupled to the frame or one of the blades and engages the patient's body adjacent the incision. An actuator imparts relative movement to the retractor blades along the first axis and the foot acts as a support base with one of the blades moving relative to the frame to lift the ribs at one side of the incision above the other. To use the retractor in spread mode the foot is removed and the retractor blades spread of the ribs without lifting. The retractor may be used in various modes to facilitate a variety of surgical procedures, including, for example, harvesting the right or left internal mammary artery, repair or replacement of the mitral and aortic valves, proximal anastamosis of arterial conduits to the aorta, distal anastamosis of the conduits to coronary arteries, and any of various other procedures requiring access to the heart, great vessels, lungs, or other thoracic contents.

    摘要翻译: 手术牵开器具有框架,并且联接到框架的第一和第二牵开器叶片。 牵开器叶片接合患者体内的切口的相对侧并沿着第一轴线彼此相对移动或远离彼此。 当在提升模式下使用牵开器时,脚连接到框架或其中一个叶片并且与切口相邻的患者身体接合。 致动器沿着第一轴向牵引器刀片施加相对运动,并且脚用作支撑基座,其中一个叶片相对于框架移动,以将切口的一侧上方的肋提升到另一侧。 为了在扩展模式下使用牵开器,脚被移除,并且牵开器叶片不会抬起而扩展肋骨。 牵开器可以以各种模式使用以促进各种外科手术,包括例如收获右侧或左侧内部乳房动脉,修复或更换二尖瓣和主动脉瓣,将主动脉导管的近端吻合口向主动脉远端 冠状动脉导管的吻合以及需要进入心脏,大血管,肺或其他胸腔内容物的各种其它方法中的任何一种。