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130 条记录 (耗时 0.028 秒)

    Endoscopic surgical instruments having rotatable end effectors
    91.
    发明授权
    Endoscopic surgical instruments having rotatable end effectors 失效
    内镜手术器具具有可转动的末端执行器

    公开(公告)号：US5174300A

    公开(公告)日：1992-12-29

    申请号：US833456

    申请日：1992-02-07

    申请人： Thomas O. Bales ,  Gregory J. Murphy ,  Frank A. Scarfone ,  Charles R. Slater ,  Kevin W. Smith

    发明人： Thomas O. Bales ,  Gregory J. Murphy ,  Frank A. Scarfone ,  Charles R. Slater ,  Kevin W. Smith

    IPC分类号： A61B1/00 ,  A61B10/00 ,  A61B10/06 ,  A61B17/00 ,  A61B17/28 ,  A61B17/32 ,  A61B17/3201 ,  A61B18/14

    CPC分类号： A61B17/2909 ,  A61B17/29 ,  A61B17/320016 ,  A61B18/1445 ,  A61B10/06 ,  A61B17/3201 ,  A61B18/1442 ,  A61B2017/0023 ,  A61B2017/0046 ,  A61B2017/0088 ,  A61B2017/2837 ,  A61B2017/292 ,  A61B2017/2926 ,  A61B2017/2939 ,  A61B2018/00077 ,  A61B2018/00083 ,  A61B2018/00107 ,  A61B2018/00148 ,  A61B2018/1412 ,  A61B2018/1415 ,  A61B2018/1455 ,  A61B2018/146 ,  A61B2018/1861

    摘要： Medical instruments are provided having end effectors and end effector actuator apparatus which are rotatable relative to the end effectors. The instruments generally include a tube which is typically coupled to the end effectors via a clevis around which the end effectors pivot, a push rod extending through the tube and coupled to the end effectors, an actuator apparatus engaging the tube and the push rod and imparting reciprocal axial motion to the push rod relative to the tube, and end effectors. The actuator apparatus includes a sleeve, spring, handle, and lever arm. The sleeve is movable along the longitudinal axis of the tube against a biasing force of the spring, but is restrained from rotating about the tube. The sleeve has a locking element on its proximal end. The handle surrounds and rotatably engages the proximal end of the tube and has a locking element on its distal end which mates with the locking element of the sleeve and disengages therewith when the sleeve is advanced along the tube. Upon disengagement, the tube, push rod, and end effectors can be rotated. The lever arm pivotally engages the handle and is coupled to the push rod such that pivotal movement of the lever arm relative to the handle effects movement of the push rod relative to the tube and pivotal movement of the end effectors. To decouple rotation of the push rod from the lever arm, a generally spherical push rod engaging element is provided in a generally cylindrical bore of the lever arm.

    摘要翻译： 提供了具有能够相对于末端执行器旋转的末端执行器和末端执行器致动器装置的医疗器械。 仪器通常包括管，其通常通过U形​​夹连接到端部执行器，末端执行器绕其枢转，推杆延伸穿过管并联接到端部执行器，致动器装置接合管和推杆并且赋予 推杆相对于管的往复轴向运动，以及末端执行器。 致动器装置包括套筒，弹簧，把手和杠杆臂。 套筒可以克服弹簧的偏置力沿着管的纵向轴线移动，但是被限制绕管旋转。 套管在其近端具有锁定元件。 手柄环绕并可旋转地接合管的近端，并且在其远端上具有锁定元件，该锁定元件与套筒的锁定元件配合，并且当套筒沿管子前进时与其脱离。 在分离时，管，推杆和末端执行器可以旋转。 杠杆臂枢转地接合手柄并且联接到推杆，使得杠杆臂相对于手柄的枢转运动实现推杆相对于管的运动和末端执行器的枢转运动。 为了将推杆与杠杆臂的旋转分离，大体上球形的推杆接合元件设置在杠杆臂的大致圆柱形的孔中。

    Maryland dissector laparoscopic instrument
    93.
    发明授权
    Maryland dissector laparoscopic instrument 失效
    马里兰解剖腹腔镜仪

    公开(公告)号：US5156633A

    公开(公告)日：1992-10-20

    申请号：US680390

    申请日：1991-04-04

    申请人： Kevin W. Smith

    发明人： Kevin W. Smith

    IPC分类号： A61B10/00 ,  A61B10/06 ,  A61B17/00 ,  A61B17/28 ,  A61B17/32 ,  A61B19/00

    CPC分类号： A61B10/06 ,  A61B17/320016 ,  A61B2017/00398 ,  A61B2017/2926 ,  A61B2017/2931 ,  A61B2017/2939 ,  A61B2018/1412 ,  A61B2018/1415 ,  A61B2018/1455 ,  A61B2018/146 ,  A61B2018/1861 ,  A61B2090/064 ,  A61M2205/6081

    摘要： A Maryland dissectors for insertion through a 5 mm trocar tube is disclosed and generally includes a hollow extended aluminum tube, a clevis, a pivot pin, a push rod, Maryland dissector end effector blades, and an actuator for causing reciprocal motion of the push rod. The clevis fixedly engages a first end of the aluminum tube, with the clevis having a hollow bore communicating with the aluminum tube and a pair of parallel, spaced apart, opposed arms extending away from the aluminum tube. The pivot pin extends transversely between the arms of the clevis and engages the clevis arms. The Maryland dissector end effector blades extend away from the aluminum tube and curve away from the longitudinal axis of the aluminum tube. The pivot pin extends through through-holes in the blades which are sized to permit pivotal movement of the blades around the pivot pin and to permit limited angular displacement of the blades relative to the pivot pin. When the Maryland dissector instrument is inserted through the 5 mm trocar tube, the blades angle relative to the pivot pin, and the aluminum tube resiliently flexes. When the blades pass out of the trocar tube the aluminum tube reassumes an unstressed position, and the blades can assume a position perpendicular to the pivot pin, with the blades extending past the projected periphery of the trocar tube.

    摘要翻译： 公开了一种用于插入穿过5mm针管针管的马里兰解剖器，并且通常包括中空的延伸铝管，U形夹，枢轴销，推杆，马里兰分离器末端执行器叶片和用于引起推杆的往复运动的致动器 。 U形夹固定地接合铝管的第一端，其中U形夹具有与铝管连通的中空孔以及远离铝管延伸的一对平行的间隔开的相对的臂。 枢轴销横向延伸在U形夹的臂之间并与U形夹臂相接合。 马里兰解剖器末端执行器叶片远离铝管延伸，并远离铝管的纵向轴线弯曲。 枢转销延伸穿过叶片中的通孔，其尺寸设定成允许叶片围绕枢转销枢转运动并且允许叶片相对于枢转销的有限角位移。 当马里兰解剖器仪器通过5毫米套管针插入时，叶片相对于枢轴销的角度和铝管弹性弯曲。 当刀片从套管针管中脱出时，铝管重新获得不受应力的位置，并且刀片可以呈现垂直于枢转销的位置，其中刀片延伸穿过套管针管的突出的周边。