Adhesive sealant composition

A - Human Necessities – 61 – L

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Details

A61L 24/10 (2006.01) A61L 24/04 (2006.01) C09J 189/00 (2006.01) A61L 24/04 (2006.01)

Patent

CA 2194681

This invention is related to an adhesive composition which may be used to bond or seal tissue in vivo. The adhesive composition is readily formed from a two-component mixture which includes a first part of a protein, preferably a serum albumin protein, in an aqueous buffer having a pH in the range of about 8.0-11.0 and a second part of a water- compatible or water-soluble bifunctional crosslinking agent. When the two parts of the mixture are combined, the mixture is initially a liquid which cures in vivo on the surface of tissue in less than about one minute to give a strong, flexible, pliant substantive composition which bonds to the tissue and is absorbed in about four to sixty days. The adhesive composition may be used either to bond tissue, to seal tissue or to prevent tissue adhesions caused by surgery.

La présente invention porte sur une composition adhésive pouvant servir à souder des tissus in vivo. Ladite ocmposition adhésive est facilement formée à partir d'un mélange de deux composants dont la première partie consiste en une protéine, de préférence une sérumalbumine, dans un tampon aqueux au pH compris entre environ 8,0 et 11,0, et la seconde en un agent de réticulation bifonctionnel hydrocompatible ou soluble dans l'eau. Lorsque les deux parties du mélange sont associées, le mélange est tout d'abord un liquide qui durcit in vivo sur la surface des tissus en moins d'environ une minute pour donner une composition substantielle résistante, flexible, qui épouse les formes, se soude aux tissus et est absorbée en environ quatre à soixante jours. Ladite composition adhésive peut être utilisée pour souder des tissus ou pour empêcher les adhérences de tissus provoquées par une intervention chirurgicale.

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