Prosthetic nucleus apparatus and methods

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/44 (2006.01) A61F 2/46 (2006.01)

Patent

CA 2576660

Prosthetic nucleus apparatus (10) and methods for treating an intervertebral disc are disclosed. Prosthetic nucleus apparatus (10) may include a barrier sealant membrane (12) and a prosthetic nucleus material (14). The barrier sealant membrane (12) forms a chamber (24) which can receive the prosthetic nucleus material (14). The barrier sealant membrane (12) can be formed by depositing a layer of material on a tissue surface (102) within a de-nucleated space (104) within an intervertebral disc (100). The prosthetic nucleus material (14) may be positioned within the chamber (24) of the barrier sealant membrane (12) after the barrier sealant membrane (12) is deposited within the de-nucleated space (104). The barrier sealant membrane (12) and the prosthetic nucleus material may be positioned within a patient through an axial trans- sacral bore (410). A plug 16 may also be included to prevent expulsion of the barrier sealant membrane (12) and prosthetic nucleus material (14).

L'invention concerne un noyau prothétique (10) et des méthodes destinées au traitement d'un disque intervertébral. Ce noyau prothétique (10) peut comprendre une membrane étanche (12) et un matériau (14) de noyau prothétique. La membrane étanche (12) forme une chambre (24) pouvant recevoir le matériau (14) de noyau prothétique. Pour former la membrane étanche (12), il faut déposer une couche de matériau sur une surface tissulaire (102) d'un espace énucléé (104) d'un disque intervertébral (100). Le matériau (14) de noyau prothétique peut être disposé dans la chambre (24) de la membrane étanche (12) après que cette dernière a été déposée dans l'espace énucléé (104). La membrane étanche et le matériau de noyau prothétique peuvent être mis en place chez le patient par un orifice trans-sacré axial (410). Un moyen de fixation (16) peut également être utilisé pour éviter l'expulsion de la membrane étanche (12) et du matériau (14) de noyau prothétique.

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