Apparatus for producing a cavity in a bone
    1.
    发明授权
    Apparatus for producing a cavity in a bone 失效
    用于在骨中产生空腔的装置

    公开(公告)号:US4466429A

    公开(公告)日:1984-08-21

    申请号:US338470

    申请日:1982-01-11

    IPC分类号: A61B17/16 A61F5/04

    摘要: An apparatus comprising two rasping halves conforming generally to the shape of the bone cavity to be produced, and a drive mechanism for reciprocating both rasping halves counter to each other in an axial direction. A rotary cutting tool in front of the rasping halves prepares the bone cavity to receive the rasping halves. A flexible drive shaft for the cutting tool extends between the rasping halves and rotatably within a drive shaft for the rasping halves. The latter drive shaft has a slot oriented at an angle to the axis of rotation of the drive shaft, and a pin projects from each rasping half into the slot, the pins being located 180.degree. apart. A bushing guides the movement of the rasping halves, and the pin from each rasping half extending through a slot in a housing for their drive shaft prevents twisting of the rasping halves.

    摘要翻译: 一种装置,包括两个通常相对于所要生产的骨腔形状的锉刀半部,以及驱动机构,用于沿着轴向将两个锉刀相对地往复运动。 在锉刀半部前面的旋转切割工具准备骨腔以接收锉刀半部。 用于切割工具的柔性驱动轴在锉刀半部之间延伸并且可旋转地在用于锉刀半部的驱动轴内延伸。 后者的驱动轴具有与驱动轴的旋转轴线成一定角度的狭槽,并且销从每个倾斜半部突出到槽中,销相对于180°。 衬套引导锉刀半部的移动,并且来自每个锉刀半部的销延伸穿过用于其驱动轴的壳体中的狭槽防止锉刀半部扭曲。

    Detachable connection between two electric conductors
    2.
    发明授权
    Detachable connection between two electric conductors 失效
    两个电导体之间的可拆卸连接

    公开(公告)号:US4009925A

    公开(公告)日:1977-03-01

    申请号:US707782

    申请日:1976-07-22

    申请人: Frank Hoogeveen

    发明人: Frank Hoogeveen

    摘要: A connection comprising two electrical conductor ends and a connection member fastened between them. The connection member does not extend beyond the external cross-sectional contour of the conductor ends, and preferably is formed of a material, such as silver, having higher electrical conductivity than the material of the conductor ends. The contact surfaces may be coated with gold. Alternatively, the connector member may be formed of copper, and the contact surfaces coated with silver. The connector member may overlap the end portions of the conductor ends, and pins arranged in aligned holes in the connector member and end portions. The connector member may be stepped, with a pin at each step, and may be formed of one piece or a series of strips one upon another. The pins may be formed as one piece with the connector member. The spacing between the pins may be greater than the holes which accommodate them.

    摘要翻译: 包括两个电导体端和连接在它们之间的连接构件的连接。 连接构件不延伸超出导体端部的外部横截面轮廓,并且优选地由诸如银的材料形成,其具有比导体端部的材料更高的导电性。 接触表面可以镀金。 或者,连接器构件可以由铜形成,并且接触表面涂覆有银。 连接器构件可以与导体端部的端部重叠,并且布置在连接器构件和端部中对准的孔中的销钉。 连接器构件可以在每个台阶上具有带脚的台阶状,并且可以由一片或一系列条形成。 销可以与连接器构件形成为一体。 销之间的间距可能大于容纳它们的孔。