Biological low-molecular-weight derivatives

C - Chemistry – Metallurgy – 08 – K

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C08K 5/3415 (2006.01) A61L 24/08 (2006.01) A61L 24/10 (2006.01) C08B 37/00 (2006.01) C08H 1/06 (2006.01) C08J 3/24 (2006.01)

Patent

CA 2499606

It is pointed out that the existing crosslinking agents and condensing agents having been employed in biological adhesives and in treating medical devices such as cardiac valves, which are non-natural products synthesized artificially, are not metabolized in vivo and exhibit toxicity to living bodies. Therefore, these products can be used only in a restricted amount and for limited purposes in the clinical field. It is intended to provide biological low-molecular weight derivatives obtained by modifying a carboxyl group of a biological low-molecular weight compound with N-hydroxysuccinimide, N-hydroxysulfosuccinimide or derivatives thereof and crosslinked high- molecular weight compounds obtained by crosslinking various high-molecular weight compounds with the use of the above derivative.

Il convient de noter que les agents de réticulation et les agents de condensation existants employés dans des adhésifs biologiques et dans des dispositifs de traitement médical tels que des valves cardiaques, qui sont des produits non naturels synthétisés artificiellement, ne sont pas métabolisés in vivo et présentent une toxicité pour les corps vivants. Par conséquent, lesdits produits peuvent uniquement être utilisés dans une quantité restreinte et à des fins limitées dans le domaine clinique. L'invention concerne des dérivés biologiques de faible poids moléculaire obtenus par modification d'un groupe carboxyle d'un composé biologique de faible poids moléculaire à l'aide de N-hydroxysuccinimide, de N-hydroxysulfosuccinimide ou de dérivés de ces derniers et des composés réticulés de poids moléculaire élevé obtenus par réticulation de divers composés de poids moléculaire élevé à l'aide des dérivés susmentionnés.

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