利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

58 条记录 (耗时 0.042 秒)

    Locking mechanism for endoscopic or laparoscopic surgical instruments
    6.
    发明授权
    Locking mechanism for endoscopic or laparoscopic surgical instruments 失效
    内窥镜或腹腔镜手术器械的锁定机构

    公开(公告)号：US5431675A

    公开(公告)日：1995-07-11

    申请号：US323419

    申请日：1994-10-13

    申请人： David A. Nicholas ,  David T. Green ,  Henry Bolanos ,  H. Jonathan Tovey ,  Paul O. Rawson

    发明人： David A. Nicholas ,  David T. Green ,  Henry Bolanos ,  H. Jonathan Tovey ,  Paul O. Rawson

    IPC分类号： A61B17/04 ,  A61B17/11 ,  A61B17/28 ,  B25B7/12 ,  B25B7/14 ,  A61B17/32

    CPC分类号： A61B17/2909 ,  A61B17/062 ,  A61B17/2833 ,  B25B7/12 ,  B25B7/14 ,  A61B2017/1125 ,  A61B2017/2922 ,  A61B2017/2946

    摘要： A surgical instrument according to an embodiment of the present invention includes a housing portion and an endoscopic portion having a proximal end and a distal end, the endoscopic portion including a pair of coaxial members attached at the proximal end to the housing portion. The endoscopic portion also includes an inner rod member slidable within an outer tube member. The endoscopic portion terminates at the distal end in a pair of jaw members disposed in opposing relation and relatively pivotal about a common point between at least an open position and a closed position. A jaw control mechanism is associated with the housing portion, and includes at least one actuating member movably mounted in the housing portion. The actuation member has at least one gripping portion thereon such that an operator of the instrument can better manipulate the actuating member with a single hand. A linking member is pivotally connected to the actuating member and the inner rod member. A notch portion is disposed on the rod member such that when the actuating member is moved in relation to the housing portion in a first direction to a first position the engaging portion engages the notch, locking the jaws in a closed position. The surgical instrument also includes means for preventing the inner rod member from moving from the first position whereby coaxial reciprocating forces are created in the inner rod member when the locking means are moved to the first position.

    摘要翻译： 根据本发明的实施例的外科器械包括：壳体部分和具有近端和远端的内窥镜部分，所述内窥镜部分包括一对同轴部件，所述同轴部件在近端附接到所述壳体部分。 内窥镜部分还包括可在外管构件内滑动的内杆构件。 内窥镜部分在远端处终止于相对的关系中设置的一对钳口构件，并且在至少打开位置和关闭位置之间的共同点相对枢转。 夹爪控制机构与壳体部分相关联，并且包括可移动地安装在壳体部分中的至少一个致动构件。 致动构件在其上具有至少一个把持部分，使得仪器的操作者可以用单手更好地操纵致动构件。 连接构件枢转地连接到致动构件和内杆构件。 凹口部分设置在杆构件上，使得当致动构件相对于壳体部分沿第一方向移动到第一位置时，接合部分接合凹口，将夹爪锁定在关闭位置。 手术器械还包括用于防止内杆构件从第一位置移动的装置，由此当锁定装置移动到第一位置时，在内杆构件中产生同轴的往复力。

    Trocar
    7.
    发明授权
    Trocar 失效
    套管针

    公开(公告)号：US06197041B1

    公开(公告)日：2001-03-06

    申请号：US08122612

    申请日：1993-09-15

    申请人： Daniel Shichman ,  David A. Nicholas ,  Ernie Aranyi

    发明人： Daniel Shichman ,  David A. Nicholas ,  Ernie Aranyi

    IPC分类号： A61B1734

    CPC分类号： A61B17/3496 ,  A61B17/3476 ,  A61B2017/00544

    摘要： A pneumatically powered trocar assembly includes a source of compressed gas which releases a metered amount of gas to a chamber. A piston slidably positioned within the chamber is driven forward by the compressed gas introduced therein, and an obturator with a tissue piercing tip are advanced thereby. Optionally, a sensor detects the presence of body tissue within the cutting path of the tip and blocks the passage of compressed gas to the chamber, or alternatively, opens an escape vent to release compressed gas therefrom if insufficient body tissue resistance is encountered. The powered trocar assembly is intended for use in conjunction with a cannula assembly to create a passage to the interior of a body cavity for conducting surgical procedures.

    摘要翻译： 气动套管针组件包括将计量的气体释放到室中的压缩气体源。 可滑动地定位在腔室内的活塞被引入其中的压缩气体向前驱动，并且具有组织穿刺尖端的填塞器被推进。 任选地，传感器检测在尖端的切割路径内的身体组织的存在并阻止压缩气体通向腔室，或者替代地，如果遇到不充分的身体组织阻力，则打开排气口以释放其中的压缩气体。 动力套管针组件旨在与插管组件一起使用，以形成用于进行外科手术的通向体腔内部的通道。

    Endoscopic surgical instrument
    8.
    发明授权
    Endoscopic surgical instrument 失效
    内镜手术器械

    公开(公告)号：US5486189A

    公开(公告)日：1996-01-23

    申请号：US141417

    申请日：1993-10-22

    申请人： Matthew Mudry ,  Ernie Aranyi ,  David A. Nicholas

    发明人： Matthew Mudry ,  Ernie Aranyi ,  David A. Nicholas

    IPC分类号： A61B17/00 ,  A61B17/28 ,  A61B18/14 ,  A61B17/32

    CPC分类号： A61B17/29 ,  A61B18/1445 ,  A61B18/1442 ,  A61B18/1815 ,  A61B2017/0046 ,  A61B2017/2837 ,  A61B2017/292 ,  A61B2017/2926 ,  A61B2017/2929 ,  A61B2017/2936 ,  A61B2017/2945 ,  A61B2018/1253 ,  A61B2018/1432

    摘要： An endoscopic surgical instrument having a handle assembly, a body portion, and a tool mechanism in which a pivoting handle pivots about a stationary handle to open and close the tool mechanism. The instrument includes a rotatable body portion, in which a rotation knob is provided on the instrument at the stationary handle so that the user may rotate the body portion, and consequently the tool mechanism, using a single hand. Furthermore, an electrocautery confection is provided which is positioned out of the line of sight of the surgeon, so that the surgeon may have an unobstructed view to the surgical site. The pivoting handle is provided with a rotatable connection point for connecting the slidable rod member to essentially eliminate radial deflection of the rod within the outer tube during opening and closing of the handles.

    摘要翻译： 一种具有手柄组件，主体部分和工具机构的内窥镜手术器械，枢转手柄围绕静止手柄枢转以打开和关闭工具机构。 仪器包括一个可转动的主体部分，其中旋转旋钮设置在固定手柄上的乐器上，使得使用者可以使用单手旋转主体部分，从而旋转工具机构。 此外，提供了一种定位在外科医生视线之外的电烙术甜食，使得外科医生可以对手术部位具有无阻碍的视野。 枢转手柄设置有可旋转的连接点，用于连接可滑动杆构件，以在打开和关闭手柄期间基本上消除杆在外管内的径向偏转。

    Safety trocar
    10.
    发明授权
    Safety trocar 失效
    安全套管

    公开(公告)号：US07169159B2

    公开(公告)日：2007-01-30

    申请号：US10328494

    申请日：2002-12-23

    申请人： David T. Green ,  David A. Nicholas ,  Daniel Shichman

    发明人： David T. Green ,  David A. Nicholas ,  Daniel Shichman

    IPC分类号： A61B17/34

    CPC分类号： A61B17/3476 ,  A61B17/3496 ,  A61B2017/00544 ,  A61B2090/08021

    摘要： A safety trocar is provided in which the cannula is reciprocally mounted to the cannula housing and reciprocates into the cannula housing when a proximally directed force is applied thereto. The piercing tip is maintained in the exposed position by a latching mechanism associated with the obturator shaft, and is automatically withdrawn into the cannula under the force of a spring when the proximal force is removed from the cannula, the cannula thus advancing distally and releasing the latching mechanism. Penetration force is maintained at a minimum, and safe and efficacious trocar entry is facilitated.

    摘要翻译： 提供了一种安全套针针，其中当向近端方向施加力时，套管往复地安装到插管壳体上并且往复运动到插管壳体中。 穿刺尖端通过与闭塞轴相关联的闭锁机构保持在暴露位置，并且当近端力从插管移除时，在弹簧的作用下自动地将其抽出到套管中，从而使套管向远侧延伸并释放 闭锁机构。 渗透力保持在最低限度，便于安全有效的套管针进入。