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    Endoscopic surgical instruments having stepped rotatable end effectors
    3.
    发明授权
    Endoscopic surgical instruments having stepped rotatable end effectors 失效
    内窥镜手术器械具有阶梯式可旋转末端执行器

    公开(公告)号：US5293878A

    公开(公告)日：1994-03-15

    申请号：US989984

    申请日：1992-12-04

    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： A61B10/00 ,  A61B10/06 ,  A61B17/00 ,  A61B17/28 ,  A61B17/32 ,  A61B18/14

    CPC分类号： A61B17/29 ,  A61B17/320016 ,  A61B18/1445 ,  A61B10/06 ,  A61B17/3201 ,  A61B18/1442 ,  A61B2017/0023 ,  A61B2017/0046 ,  A61B2017/0088 ,  A61B2017/2837 ,  A61B2017/292 ,  A61B2017/2926 ,  A61B2017/2929 ,  A61B2017/293 ,  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, and an actuator apparatus engaging the tube and the push rod with the actuator apparatus including a handle which surrounds and rotatably engages the proximal end of the tube, and a lever arm which pivotally engages the handle and is coupled to the push rod such that pivotal movement of the lever arm relative to the handle effects axial movement of the push rod relative to the tube and pivotal movement of the end effectors. In order to alternatively fix or allow rotation of the actuator apparatus relative to the tube and end effectors, the tube is provided with a plurality of peripherally spaced apart recesses in a portion thereof, and the handle is provided with a resiliently biased contact element which is coupled to an electrode and which when seated in a recess restrains rotation of the outer tube about the longitudinal axis, but which can be unseated by a sufficient relative rotational force. To decouple rotation of the push rod from the lever arm, a generally spherical push rod engaging element is provided in a 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，其通常经由U形夹连接到端部执行器，末端执行器绕其枢转，延伸穿过管并连接到端部执行器的推杆以及与管和推杆接合的致动器装置， 所述致动器装置包括围绕并可旋转地接合所述管的近端的手柄，以及与所述手柄枢转接合并且联接到所述推杆的杠杆臂，使得所述杠杆臂相对于所述手柄的枢转运动实现轴向运动 推杆相对于管和端部执行器的枢转运动。 为了交替地固定或允许致动器装置相对于管和端部执行器的旋转，管在其一部分中设置有多个周向间隔开的凹部，并且手柄设置有弹性偏置的接触元件，该接触元件是 耦合到电极，并且当其位于凹部中时，限制外管围绕纵向轴线的旋转，但是可以通过足够的相对旋转力而脱离。 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圆柱形孔中。

    Endoscopic surgical instruments having rotatable end effectors
    4.
    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。