A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 31/04 (2006.01) A61L 27/24 (2006.01) A61L 27/54 (2006.01) A61L 27/56 (2006.01) A61L 31/14 (2006.01)
Patent
CA 2749888
Tissue regeneration or grafting is promoted utilizing a structure including a multi-layer sheet of collagen membrane material which includes a purified collagen barrier sheet material derived from natural collagen-containing tissue, the barrier sheet material including a barrier layer with an outer smooth barrier face and a fibrous face opposite the smooth barrier face. The structure further includes a matrix layer of collagen sponge material adjacent to the fibrous face. The matrix layer of collagen sponge material is resorbed by a body of a subject at a substantially faster rate than the barrier sheet material.
La présente invention propose, pour favoriser la régénération des tissus ou leur greffe, d'utiliser une feuille multicouche comportant une membrane de collagène. Cette membrane comprend un film barrière qui est en collagène purifié tiré de tissu contenant du collagène naturel, et qui comporte une couche barrière présentant une face barrière lisse et une face fibreuse à l'opposé de la face barrière lisse. La structure comprend en outre, contre la face fibreuse, une couche matrice faite d'éponge de collagène. Le corps du sujet résorbera la couche matrice en éponge de collagène sensiblement plus rapidement qu'il ne résorbera le film barrière.
Geistlich Peter
Schloesser Lothar
Geistlich Pharma Ag
Perley-Robertson Hill & Mcdougall Llp
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