Bone fracture fixation and compression apparatus

Details Bone fracture fixation and compression apparatus Bone fracture fixation and compression apparatus

1975-04-21

1976-11-09

Yasko, John D.

Surgery

Truss

Perineal

A61F 504

Patent

active

039904385

ABSTRACT:
A lag screw member and a compression screw for maintaining a broken bone fragment fixed adjacent the principal bone and for applying compression force between the fragment and the principal bone. The lag screw member includes a first end with cutting threads for anchoring the lag screw member within the principal bone. The other end of the lag screw member includes a threaded socket for receiving the threaded portion of the compression screw after it passes through the bone fragment. The broad slotted head of the compression screw holds the bone fragment under pressure against the principal bone when the compression screw is rotated into the socket of the lag screw member.

REFERENCES:
patent: 2121193 (1938-06-01), Hanicke
patent: 2243717 (1941-05-01), Moreira
patent: 2821979 (1958-02-01), Cameron
patent: 3051169 (1962-08-01), Grath
patent: 3374786 (1968-03-01), Callender, Jr.
patent: 3678925 (1972-07-01), Fischer et al.
patent: 3760802 (1973-09-01), Fischer et al.

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