Systems and methods for facet joint treatment

Details Systems and methods for facet joint treatment Systems and methods for facet joint treatment

A - Human Necessities

61

F

A61F 2/44 (2006.01)

Patent

CA 2754004

A system for treating a facet joint of a patient including superior and inferior resurfacing devices. The superior device includes a resurfacing body configured to conform to a shape of a superior facet articular face, and the inferior device includes a resurfacing body configured to conform to a shape of an inferior facet articular face. Each resurfacing body exhibits sufficient flexibility to transition from a relatively flat state to an inserted state in which the resurfacing body substantially matches any multi-planar concavities of the corresponding facet articular face in the presence of compressive forces. With this construction, the system is capable of establishing a new sliding interface within the facet joint, and can be inserted on a minimally-invasive basis. The resurfacing bodies can be formed of PEEK, and can include teeth that engage the corresponding facet articular face.

La présente invention a pour objet un système de traitement d?une articulation facettaire d?un patient comprenant des dispositifs de rectification supérieur et inférieur. Le dispositif supérieur comprend un corps de rectification conçu pour se conformer à une forme d?une face articulaire facettaire supérieure, et le dispositif inférieur comprend un corps de rectification conçu pour se conformer à une forme d?une face articulaire facettaire inférieure. Chaque corps de rectification manifeste une flexibilité suffisante pour effectuer la transition d?un état relativement plat à un état inséré dans lequel le corps de rectification s?adapte sensiblement à toutes les concavités à plans multiples de la face articulaire facettaire correspondante en présence de forces de compression. Avec cette construction, le système est capable d?établir une nouvelle interface de glissement au sein de l?articulation facettaire, et peut être inséré sur une base minimalement invasive. Les corps de rectification peuvent être formés de PEEK, et peuvent comprendre des dents qui engrènent la face articulaire facettaire correspondante.

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