公开(公告)号：US3797497A

公开(公告)日：1974-03-19

申请号：US3797497D

申请日：1972-02-28

Applicant: STRYKER CORP

Inventor： CRIM P ,  WARFIELD W

IPC: A61B17/00 ,  A61B17/16 ,  B23Q5/04 ,  F16H37/06

CPC classification number: B23Q5/045 ,  A61B17/1617 ,  A61B17/1633 ,  A61B17/1697 ,  A61B2017/00544 ,  Y10T74/19112

Abstract: A driving device including a right-angle handpiece assembly having a casing containing an input shaft, an output shaft and means drivingly connecting same. A bone drill attachment is connectible to the handpiece assembly and includes a cylindrical extension mountable upon the output end of the casing and concentric inner and outer drill bits which project from said extension. The inner drill bit is connectible to the output shaft by a pair of clutch mechanisms which are normally spring-biased into a disconnected position. The outer drill bit normally rotates with the inner drill bit but is permitted to move axially and angularly relative to the inner drill bit through a predetermined distance. The cutting end of the inner drill bit extends axially beyond the cutting end of the outer drill bit. Alternately, a wire driving attachment can be connected to the handpiece assembly and includes a chuck structure mountable upon the output end of the casing and drivingly connectible to the output shaft. The chuck structure has a continuous opening therethrough which aligns with a through opening in the casing for receiving therein an elongated member, such as a wire.

Abstract translation: 一种驱动装置，包括具有包含输入轴的壳体的直角手持组件，输出轴和驱动地连接其的装置。 骨钻附件可连接到手持件组件，并且包括可安装在壳体的输出端上的圆柱形延伸部和从所述延伸部突出的同心的内部和外部钻头。 内钻头可以通过一对离合器机构连接到输出轴，该离合器机构通常被弹簧偏压到断开的位置。 外钻头通常与内钻头一起旋转，但允许其相对于内钻头轴向和角度地移动预定距离。 内钻头的切割端轴向延伸超过外钻头的切割端。 或者，线驱动附件可以连接到手持件组件，并且包括可安装在壳体的输出端上并可驱动地连接到输出轴的卡盘结构。 卡盘结构具有穿过其中的连续开口，其与壳体中的通孔对准，用于在其中容纳细长构件，例如线。