Radiovisible hydrogel intervertebral disc nucleus

Details Radiovisible hydrogel intervertebral disc nucleus Radiovisible hydrogel intervertebral disc nucleus

A - Human Necessities

61

F

A61F 2/44 (2006.01) A61L 27/04 (2006.01) A61L 27/18 (2006.01) A61L 27/44 (2006.01) A61L 27/50 (2006.01) A61L 27/52 (2006.01)

Patent

CA 2430821

A spinal implant for replacing the natural nucleus of the disc made from a polymer such as hydrogel having a radiopaque material located within the polymer. The material may be in the form of a powder disbursed throughout the polymer or may be in he form of a powder disbursed in layers or in other specific locations within the polymer. The radiopaque material is metal such as gold, tungsten, titanium, tantalum or platinum. The metal may also be in the form of a foil or wire located within the hydrogel such as polyurethane, thereby making the implant visible on x- rays. Other polymers besides hydrogel may be used with the radiopaque material being disbursed therein.

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