Tissue substitute material

Details Tissue substitute material Tissue substitute material

A - Human Necessities

61

L

A61L 27/52 (2006.01)

Patent

CA 2532493

Fibre-reinforced material that substitutes for cartilage-like tissue, consisting of a hydrophilic, relatively elastic fibre structure and a matrix of polymerised hydrogel. The fibre/matrix bonding is increased by saturating the fibre in the monomer solution before polymerisation of the hydrogel. The fibre preferably consists of a material based on polyurethane. More particularly, this material contains 10-70 % (m/m) fibres (based on the dry matter) and 1-5 % (m/m) (based on the dry matter) of a substance that contains ionised groups has been added to said hydrogel.

L'invention concerne un matériau renforcé par des fibres, utilisé comme substitut du tissu cartilagineux, constitué d'une structure fibreuse élastique relativement hydrophile et d'une matrice d'hydrogel polymérisé. L'adhésion entre les fibres et la matrice est augmentée par saturation des fibres dans la solution monomère avant la polymérisation de l'hydrogel. De préférence, la fibre est constituée d'un matériau à base de polyuréthanne. Ce matériau contient plus précisément 10-70 % (m/m) de fibres (sur la base de la matière sèche) et 1-5 % (m/m) (sur la base de la matière sèche) d'une substance contenant des groupes ionisés ajoutée audit hydrogel.

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