Universal eccentric fixation mechanism for orthopedic surgery

Details Universal eccentric fixation mechanism for orthopedic surgery Universal eccentric fixation mechanism for orthopedic surgery

1994-07-27

1996-11-19

Jackson, Gary

Surgery

Instruments

Orthopedic instrumentation

A61B 1770

Patent

active

055757910

ABSTRACT:
A universal and eccentric fixation mechanism for an orthopedic surgery comprises a universal receiving seat, an eccentric collar, a rod body, and an urging and fixing element. The eccentric collar is received in a spherical hollow receiving seat of the universal receiving seat and provided with an urging slit. The eccentric collar has a hollow portion in which the rod body is held such that one end of the rod body is fastened with a bone fixing element. The slit of the eccentric collar can be urged to close by the urging and fixing element so that the rod body is held securely in the hollow portion of the eccentric collar. The hollow portion of the eccentric collar is cylindrical in shape and has an axis deviating from the spherical center of the eccentric collar of a spherical construction.

REFERENCES:
patent: 4420272 (1983-12-01), Ingalls et al.
patent: 5176680 (1993-01-01), Vignaud et al.
patent: 5306275 (1994-04-01), Bryan
patent: 5352226 (1994-10-01), Lin

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