Interference bone-fixation screw with multiple interleaved threa

Details Interference bone-fixation screw with multiple interleaved threa Interference bone-fixation screw with multiple interleaved threa

1992-12-10

1995-08-22

Prebilic, Paul B.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

606 65, 606 73, 411412, A61F 228

Patent

active

054435099

ABSTRACT:
A bone fixation screw employs plural interleaved and axially symmetrical spiral threads. The threads are machined at the screw tip to form symmetrically disposed leading cutting edges. An interference-screw embodiment has a central axial cannula and a female hexagonal drive socket. The plural threads assist in unbiased starting and fast advance of the screw.

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