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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-5176680-A, on 5 January 1993. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000003389

Device for the adjustable fixing of spinal osteosynthesis rods

Published
Permanent URL
Classification
Tools & Tooling › Clamping Tools
Assignee
LAPRESLE PHILIPPE, MISSENARD GILLES, SACRISTE JEAN FRANCOIS, VIGNAUD JEAN LOUIS
Original source
US-5176680-A, the United States Patent and Trademark Office, 5 January 1993
Document SHA-256
6d690a97fbcdb2beefa3e449c6527de041c9b5221f7a61a262294604bcf08394

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).

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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.

Publication information

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Citation

OpenTechnical Publication OT-2026-000003389, “Device for the adjustable fixing of spinal osteosynthesis rods,” published September 15, 2026 at 20:20:26 UTC, https://opentechnical.org/p/OT-2026-000003389.

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This record reproduces a document published elsewhere and is provided for reference and study. Rights in the original remain with its owner. See the publication policy.