Tool for screwing and unscrewing a coil spring in and out of the cavity of a long bone

摘要

A tool (14) for screwing and unscrewing a coil spring (10) into and out of the hollow space of a long bone, wherein on a head portion of the coil spring (10) is an axially projecting pin (12) formed from the first coil (11) and integrally connected thereto, the tool (14) for screwing and unscrewing the coil spring (10) having means for gripping in the form of a handle (18) to set the tool (14) in a rotational movement, and wherein a lower Section of a shaft (15) of the tool (14) serves as a centering means for the tool (14) and engages in the helical spring (10) in the head region, characterized in that the tool (14) on the shaft (15) is a plate-like element ( 16) with radial extent, wherein in this plate-like element (16) has a bore (17) or recess for receiving the axially projecting pin (12) is present, which as a point of attack when screwing and unscrewing the Sch Raubenfeder (10) with the tool (14) is used.