Ring system for external fixation of bone and related method

Surgery – Instruments – Orthopedic instrumentation

Patent

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Details

606 59, A61B 1762

Patent

active

059975377

ABSTRACT:
An external fixator for adjustably securing first and second portions of a bone includes a ring assembly and a bone screw clamp assembly interconnected by a central body. The ring assembly secures one or more tension wires adapted to pass through the first portion of the bone. The bone screw clamp assembly secures one or more bone screws adapted to engage a second portion of the bone. The ring assembly includes a generally circular frame having a peripheral groove for securing a tension wire carriage anywhere therealong. The tension wire carriages are adjustable so that the tension wire may be positioned above or below the ring. One or more connector rods are used to rigidify the external fixator by interconnecting the ring assembly and the bone screw clamp assembly.

REFERENCES:
patent: D367529 (1996-02-01), Price et al.
patent: D367531 (1996-02-01), Price et al.
patent: 4127119 (1978-11-01), Kronner
patent: 4535763 (1985-08-01), Jaquet
patent: 4784125 (1988-11-01), Monticelli
patent: 4923458 (1990-05-01), Fischer
patent: 5095919 (1992-03-01), Monticelli
patent: 5405347 (1995-04-01), Lee et al.
patent: 5496319 (1996-03-01), Allard et al.
patent: 5662650 (1997-09-01), Bailey et al.
patent: 5797908 (1998-08-01), Meyers
Synthes brochure entitled "The AO/ASIF Hybrid Fixator Technique Guide", 13 pgs., undated.
Zimmer brochure entitled "Hybrid Application", 6 pgs., undated.
Brochure entitled "Monticelli Spinelli External Fixation System", 2 pgs., undated.
Ace brochure entitled "Wire Tension Treatment of Complex Tibial Plateau & Pilon Fractures", 4 pgs., undated.
Orthofix brochure entitled "The Orthofix Periarticular Module", 7 pgs. undated.

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