OPENTECHNICAL PUBLICATION
OT-2026-000003389

Device for the adjustable fixing of spinal osteosynthesis rods

Published: 2026-09-15T20:20:26.319253Z
Permanent URL: https://opentechnical.org/p/OT-2026-000003389
Categories: Tools & Tooling > Clamping Tools

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ABSTRACT

The present invention concerns a device for fixing osteosynthesis rods to
pedicular screws (1), the device being of the type including a diapason-shaped
head (4) defining two branches (4a, 4b) collectively receiving a rod (6) to be
fixed, the head being locked in its housing (5) by a locking screw (7),
wherein it further includes, threaded on the rod (6) and inserted between the
locking screw (7) and the bottom of the housing (5), a split ring (9) whose
opposing external faces (10) directed towards the locking screw (7) and said
bottom are convex and received in complementary concave surfaces (11, 12)
provided on the extremity of the locking screw (7) and the bottom of the
receiving housing (5) of the rod (6), the ring (9), prior to locking of the
screw (7), allowing for a certain angular clearance of the rod (6) with
respect to the axis of the screw (1).

1. Drawings

[0001] Sheet 1.

[0002] Sheet 2.

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OpenTechnical publication OT-2026-000003389
Published 2026-09-15T20:20:26.319253Z
https://opentechnical.org/p/OT-2026-000003389