Offset multiaxial or polyaxial screw, system and assembly

Details Offset multiaxial or polyaxial screw, system and assembly Offset multiaxial or polyaxial screw, system and assembly

2007-12-19

2011-10-04

Robert, Eduardo C (Department: 3733)

Surgery

Instruments

Orthopedic instrumentation

Reexamination Certificate

active

08029539

ABSTRACT:
A capless multiaxial screw fixation assembly, including: a screw having a threaded portion and a screw head portion positioned at one end thereof; and, a retainer having a first end, a second end opposite the first end, and a bore for receiving the screw threaded portion so that the screw head portion is seated therein. At least one of the screw and the retainer is configured such that the retainer is able to pivot about the screw head portion in a non-symmetrical manner.

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Expedium Spine System, DePuy Spine; Aug. 2004; Raynham, MA 02767.

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