Radiopaque prosthetic intervertebral disc nucleus

Details Radiopaque prosthetic intervertebral disc nucleus Radiopaque prosthetic intervertebral disc nucleus

A - Human Necessities

61

L

A61L 27/52 (2006.01) A61L 27/50 (2006.01)

Patent

CA 2577033

This invention relates to a hydrogel based on a copolymer comprising (a) at least one monomer comprising covalently bound iodine or bromine, and; (b) at least one hydrophilic monomer, wherein the hydrogel, when fully hydrated, has an elastic modulus between 0.01-100 MPa at 37~C. The invention also relates to a prosthetic nucleus comprising the hydrogel according to the invention and a method for making the prosthesis.

Cette invention concerne un hydrogel à base d'un copolymère, comprenant : (a) au moins un monomère contenant de l'iode ou du brome à liaison covalente ; et (b) au moins un monomère hydrophile. Lorsqu'il est complètement hydraté, cet hydrogel possède un module élastique compris entre 0,01 et 100 MPa à 37 °C. Cette invention concerne également une prothèse de noyau de disque intervertébral comprenant cet hydrogel et un procédé de fabrication de cette prothèse.

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