Screw for lumbar-sacral fixator

Details Screw for lumbar-sacral fixator Screw for lumbar-sacral fixator

1994-08-26

1996-04-09

Pellegrino, Stephen C.

Surgery

Instruments

Orthopedic instrumentation

606 73, 606 69, A61B 1770, A61B 1780, A61B 1786

Patent

active

055057314

ABSTRACT:
A screw for a lumbar-sacral fixator for use on the spine wherein the screw comprises a threaded part and a head which has a notched surface which is inclined with respect to an elongated axis of the screw by an angle of approximately 30.degree. to 45.degree..

REFERENCES:
patent: 2696817 (1954-12-01), Prevo
patent: 3778610 (1973-12-01), Wolf
patent: 4630985 (1986-12-01), Simons
patent: 4987892 (1991-01-01), Krag et al.
patent: 5002578 (1991-03-01), Loman
patent: 5067955 (1991-11-01), Cotrel
patent: 5108395 (1992-04-01), Laurain
patent: 5176680 (1993-01-01), Vignaud et al.
patent: 5190543 (1993-03-01), Schlapfer

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