Dynamic tension bone screw

Details Dynamic tension bone screw Dynamic tension bone screw

1988-10-07

1990-09-25

Hafer, Robert A.

Surgery

Instruments

Orthopedic instrumentation

606105, 411544, 433174, A61F 504, F16B 4302, A61C 800

Patent

active

049590642

ABSTRACT:
A dynamic bone fixation screw for rejoining fracture fragments of a bone to their approximate original mutual dispositions. It includes a threaded distal end member for threaded engagement with one of the bone fragments and a head member at a proximal end for engagement with another of the bone fragments. A spring member integral with and extending between the distal end member and the head member enables a predetermined torque to be initially imparted to the bone. When stress relaxation in the bone occurs, the spring member relaxes accordingly while continuing to draw the bone fragments together. The bone screw is fabricated in a unique manner.

REFERENCES:
patent: D283591 (1986-04-01), Swanstrom
patent: 972787 (1910-10-01), Huyck
patent: 1204254 (1916-11-01), Dodds
patent: 2035497 (1936-03-01), Morse
patent: 2037156 (1936-04-01), Taplin
patent: 2563976 (1951-08-01), Torosian
patent: 2856617 (1958-10-01), Widmann
patent: 2985168 (1961-04-01), Jonas et al.
patent: 3051169 (1962-08-01), Grath
patent: 3053555 (1962-09-01), Lahti
patent: 3076453 (1963-02-01), Tronzo
patent: 3435526 (1969-04-01), Brancato
patent: 3554193 (1971-01-01), Konstantinou
patent: 4227518 (1980-10-01), Aginsky
patent: 4537185 (1985-08-01), Stednitz
patent: 4589179 (1986-05-01), Hulting, Jr.
patent: 4621629 (1986-11-01), Koeneman
patent: 4711232 (1987-12-01), Fischer et al.

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