Multidirectional adaptable vertebral osteosyntsis device with reduced space requirement

USRE42626E1 · kind E1 · reissue

Assignee

• Medicrea Technologies · FR

Inventors

• Jean Taylor · Cannes, FR
• Bernard Villaret · Croix-Chapeau, FR

Key dates

• Filing date: Jun 3, 1998
• Grant date: Aug 16, 2011
• Expiry date: Jun 3, 2018

Classification

• Technology area (CPC —): General

Abstract

A vertebral osteosynthesis device includes at least two bone anchoring elements (1) in the vertebral bone structures respectively (S, L5.), a longitudinal linking member (2) between the bone anchoring elements, and connector links (3) between the bone anchoring elements and said linking members. Each bone anchoring element includes a bond fixing part (4), a head (5) to be gripped by a screwing device, a threaded shaft (7) extending the grip head, and a clamping element (8) to be screwed on said shaft to lock together the connector link, the longitudinal linking member and the corresponding bone anchoring element; the threaded shaft (7) is provided at its end with a hinge ball joint (11) in a housing (12) of the grip head (5), enabling a multidirectional adjustment of the shaft (7) and a positioning of the connector link (3) adapted to the vertebral segment configuration (S, L5, . . . Lw) receiving the bone anchoring elements.