OPENTECHNICAL PUBLICATION
OT-2026-000003166

Screw device with threaded head for permitting the coaptation of two bone fragments

Published: 2026-09-15T19:42:32.483660Z
Permanent URL: https://opentechnical.org/p/OT-2026-000003166
Categories: Tools & Tooling > Clamping Tools

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ABSTRACT

A screw device for the coaptation of two small bone fragments includes a
threaded proximal head part and a threaded distal part, the proximal part
having a diameter greater than the distal part and having a thread pitch
smaller than that of the distal part. The distal part is threaded over
substantially its entire length and a short length smooth portion is provided
between the proximal and distal parts. The upper edges of the threads of the
two threaded parts are perpendicular to the axis of the thread, while their
lower edges are oblique, and each threaded part has at its base at least one
tapping notch. An axial channel is provided in the screw for permitting the
use of a guide pin.

1. Drawings

[0001] Sheet 1.

[0002] Sheet 2.

[0003] Sheet 3.

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OpenTechnical publication OT-2026-000003166
Published 2026-09-15T19:42:32.483660Z
https://opentechnical.org/p/OT-2026-000003166