초록 ▼

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 d

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.

대표청구항 ▼

Device for treating a bone having a fracture, said device comprising an elongated intramedullary nail having a longitudinal axis for insertion into the medulla of the bone across the bone fracture, said nail having a hollow first terminal segment at one end and a second terminal segment at the other

Device for treating a bone having a fracture, said device comprising an elongated intramedullary nail having a longitudinal axis for insertion into the medulla of the bone across the bone fracture, said nail having a hollow first terminal segment at one end and a second terminal segment at the other end a longitudinal slot in the first terminal segment for receiving a retaining member extending generally transverse to the longitudinal axis, a hole in the second terminal segment for receiving a retaining member generally transverse to the longitudinal axis, and an adjusting member within said hollow first terminal segment for applying a force axially of the nail to a retaining member inserted in said slot in said first terminal segment, said first terminal segment having an internal thread and said adjusting member having an external thread to engage the internal thread of said first terminal segment, and a tool engaging means on said adjusting member for rotating said adjusting member to advance said adjusting member axially of the nail.