Importance

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Abstract

The device comprises an intramedullar nail adapted to be driven into a hollow bone. The proximal terminal nail segment comprises an internal thread and a transversely penetrating longitudinal slot adapted to receive a screw to penetrate through the nail and to be screw-connected with the bone. The distal terminal nail segment comprises two transversely throughgoing holes each adapted to receive a screw to be screw-connected with the bone. An adjusting means comprises a bolt as adjusting member provided with an external thread screwed directly into the internal thread of the nail, or screwed into the internal thread of an insert in turn screwed into the internal thread of the nail, the bolt being adapted to be brought into direct or indirect engagement with the screw transversely penetrating through the longitudinal slot. By turning the bolt the screw may be pressed toward the distal end of the nail and displaced toward the same. The adjusting means or member may be inserted into the nail in rapid and simple manner after the nail has been driven into the hollow bone, and may be brought into a position, in which it engages the screw that transversely penetrates through the longitudinal slot. The entire adjusting means is adapted to remain inside the nail, until such time as the nail is removed from the hollow bone.

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First Claim