Joint prosthesis

Details Joint prosthesis Joint prosthesis

A - Human Necessities

61

F

A61F 2/30 (2006.01) A61F 2/42 (2006.01) A61B 17/68 (2006.01) A61F 2/38 (2006.01)

Patent

CA 2290787

A cylindrical, fibrous, porous joint spacer is provided, having excellent properties, flexibility of formation, and operability, which is intended to be implanted as a prosthesis between bones (8, 9) to be joined together. The joint spacer can be formed from a strip of fabric (1), which is comprised of bioabsorbable fibers and made by a knitting, weaving, non-woven or other technique. The fabric (1) is typically relatively narrow (e.g. 1 to 10 mm wide) and thin (e.g. 0.1 to 1.0 mm thick), depending on the intended application of the prosthetic device to be formed from the fabric (1). The joint spacer is made by wrapping said fabric (1) to yield a cylindrical body (2); and fixing the free end of the fabric (1) to the surface of the cylindrical body (2) so formed. The joint spacer can be implanted in conjunction with one or more fixation parts (14', 14"), to hold the joint spacer in place between the bones (15, 16) to be joined.

L'invention concerne un élément d'espacement poreux, fibreux et cylindrique. Cet élément présente des propriétés excellentes, une souplesse de formation et de fonctionnement, et peut être implanté comme prothèse entre les os à articuler. L'élément d'espacement peut être formé à partir d'une bande de tissu (1) qui comprend des fibres bioabsorbables et est fabriquée selon une technique de tricotage, tissage, non tissé ou autre technique. Cette bande de tissu (1) est relativement étroite (par exemple, 1 à 10 mm de large) et mince (par exemple, 0,1 à 1,0 mm d'épaisseur), en fonction de l'application prévue de la prothèse à fabriquer. L'élément d'espacement articulaire est fabriqué en enroulant ce tissu (1) pour obtenir un corps cylindrique (2) et fixer l'extrémité libre du tissu (1) à la surface de ce corps cylindrique (2). Cet élément d'espacement peut être implanté en association avec une ou plusieurs pièces de fixation (14', 14'') pour le maintenir en position entre les os (15, 16) à assembler.

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