Device for external fixation of bone fragments

Details Device for external fixation of bone fragments Device for external fixation of bone fragments

1979-06-26

1981-06-16

Michell, Robert W.

Surgery

Truss

Perineal

128 92BA, 403 90, 403131, A61F 504, F16, F16C 1106, F16D 112

Patent

active

042731160

ABSTRACT:
An external fixation device for reducing fractures and realigning bones comprises sliding universal articulated couplings for enabling easy adjustment and subsequent locking of connections between Steinmann pins and tubular tie-rods. The couplings each include a split, spherical adapter sleeve which is embraced by the matching inner surface of an open ring portion of a coupling locking clamp having clamp lugs tightenable against a block by means of a nut-and-bolt assembly. Further nut-and-bolt assemblies are disposed in elongated slots in the blocks and cooperate with associated clamping members to clamp the Steinmann pins to the blocks after adjustment in two orthogonal directions and optional resilient bending of the pins.

REFERENCES:
patent: 348978 (1886-09-01), Keilholtz
patent: 1574899 (1926-03-01), Kellogg
patent: 1864534 (1932-06-01), Gulesian
patent: 2110414 (1938-03-01), Bell
patent: 2238869 (1941-04-01), Haynes
patent: 2238870 (1941-04-01), Haynes
patent: 2346346 (1944-04-01), Anderson
patent: 2391537 (1945-12-01), Anderson
patent: 2391693 (1945-12-01), Ettinger
patent: 2652221 (1953-09-01), Kampa
patent: 3308812 (1967-03-01), Gidloud
patent: 3961854 (1976-06-01), Jaquet
patent: 4127119 (1978-11-01), Kronner
patent: 4135505 (1979-01-01), Day
"Osteotaxis"-Catalog No. (HJL012D), Apr. 1977, by Jaquet Freres, Geneva, Switzerland.

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