Vertebral auxiliary fixation device

Details Vertebral auxiliary fixation device Vertebral auxiliary fixation device

1994-07-20

1996-05-28

Pellegrino, Stephen C.

Surgery

Instruments

Orthopedic instrumentation

606 73, 606 60, 411412, A61B 1770, A61B 1786, A61B 1768

Patent

active

055206883

ABSTRACT:
A vertebral auxiliary fixation device comprises an auxiliary fixation piece and a double-threaded self-locking screw. The auxiliary fixation piece has a coupling element located at one end thereof and a threaded through hole located at another end thereof. The screw is composed of a head, a second threaded portion engageable with the threaded through hole of the auxiliary fixation piece, and a first threaded portion intended to fasten onto a vertebra to be fixed or vertebrae contiguous to the vertebra. The vertebral auxiliary fixation device is employed in conjunction with a vertebra fixation device.

REFERENCES:
patent: 4877364 (1989-10-01), Sorrentino
patent: 5196014 (1993-03-01), Lin
patent: 5259398 (1993-11-01), Vrespa
patent: 5306275 (1994-04-01), Bryan
patent: 5325226 (1994-10-01), Lin

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