Stent for blood vessel and material for stent for blood vessel

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/06 (2006.01) A61M 29/02 (2006.01) A61F 2/00 (2006.01) A61F 2/02 (2006.01)

Patent

CA 2398051

A luminal stent, implanted and implanted and left in the blood vessel, is disclosed. By permitting a stent (1), formed of a biodegradable polymer material (2), to be swollen, and by impregnating the swollen stent (1) with a drug, a sufficient quantity of the drug is impregnated in the stent. This drug is continuously released into the blood vessel over a prolonged time. A biodegradable polymer layer is formed on the surface of the stent (1) impregnated with the drug, and the release rate of the drug impregnated in the stent is controlled.

L'invention concerne une endoprothèse destinée à être implantée dans un vaisseau sanguin. Cette endoprothèse (1) est constituée d'un matériau (2) polymère biodégradable. Cette endoprothèse (1) est dilatée et un médicament est fixé en quantité suffisante sur cette endoprothèse (1) dilatée. Un médicament peut ainsi être libéré de manière continue dans un vaisseau sanguin, pendant une période prolongée. Une couche de polymère biodégradable peut être formée sur la surface de l'endoprothèse portant un médicament, afin de réguler la vitesse de diffusion du médicament immobilisé sur l'endoprothèse.

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