The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 1999
Filed:
Apr. 24, 1998
Guy Viart, Saint Leger, FR;
Eurosurgical, Beaurains, FR;
Abstract
The device comprises at least one vertebral rod (2), pedicle screws (3), and connectors (1) interconnecting the rod and the screws. The connectors (1, 10) define an oblong opening (5) extending transversely of the rod and passed through by the screw. The intermediate connectors (1) are made of a malleable plastically deformable material having a capacity of elongation of at least about 20%. The intermediate anchorages of the instrumentation are provided with such connectors (1) which are plastically deformable in their branches (4) passed through by the screw by the effect of the tightening of nuts (8) on the screws when placing the device in position and undeformable by the effect of the bending moments transmitted by the spine in vivo at values lower than 4.5 N.m. The chosen material may be for example pure titanium and its plasticity enables the surgeons to easily adapt the connectors to the differences of alignment, angulation and depth of penetration of the pedicle screws. The connector according to the invention considerably facilitates the mounting of the instrumentations by the surgeon.