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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-4920959-A, on 1 May 1990. 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-2026-000003458

External fixture for osteosynthetis

Published
Permanent URL
Classification
Tools & Tooling › Clamping Tools
Inventors
MUELLER KARL H, WITZEL ULRICH
Assignee
WITZEL ULRICH
Original source
US-4920959-A, the United States Patent and Trademark Office, 1 May 1990
Document SHA-256
cb6ed05f9c045261aacc534cb269ff397c31c44f2b4ccd0357afcbd3155d022c

Any external fixture for bone synthesis is provided with at least one bridge member, a plurality of holders are orientable and screw clampable on this bridge member by clamping surfaces. The holders have cylindrical holder openings which are closable by an operating screw and thereby serve as clamp holders, each for one bone nail and/or one bone screw. The cylindrical holder openings are bounded by a one piece connected wall surface and are closable individual or jointly with adjacent holder clamp jaw surfaces on the clamp side, on tightening the operating screw. Thus the cylindrical holder openings are each elastically or plastically deformable by a drill and/or screw guide receiving a bone drill with play, from a layer width - down to a smaller width for clamping. The external fixture affords a simple structure, easy to manufacture and at the same time simple handling during operation.

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Abstract

Any external fixture for bone synthesis is provided with at least one bridge member, a plurality of holders are orientable and screw clampable on this bridge member by clamping surfaces. The holders have cylindrical holder openings which are closable by an operating screw and thereby serve as clamp holders, each for one bone nail and/or one bone screw. The cylindrical holder openings are bounded by a one piece connected wall surface and are closable individual or jointly with adjacent holder clamp jaw surfaces on the clamp side, on tightening the operating screw. Thus the cylindrical holder openings are each elastically or plastically deformable by a drill and/or screw guide receiving a bone drill with play, from a layer width - down to a smaller width for clamping. The external fixture affords a simple structure, easy to manufacture and at the same time simple handling during operation.

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Publication information

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Citation

OpenTechnical Publication OT-2026-000003458, “External fixture for osteosynthetis,” published September 15, 2026 at 20:30:04 UTC, https://opentechnical.org/p/OT-2026-000003458.

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Terms

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.