Sterilization methods and apparatus

A - Human Necessities – 61 – L

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A61L 2/00 (2006.01) A61F 2/84 (2006.01) A61M 25/10 (2006.01)

Patent

CA 2750083

Sterilization methods for implantable prostheses are described where a polymeric stent may be sterilized, e.g., via ETO sterilization, at a temperature below a glass transition temperature of the stent. A separate delivery catheter may be sterilized separately and the stent and delivery catheter may then be combined in an aseptic or semi-aseptic environment and sterilized as an assembled system such that the requirements for sterilizing the system are relatively lower. Additionally and/or alternatively, valve and filter assemblies may be used with an optional mandrel assembly for maintaining sterility of the internal components of a catheter system.

L'invention porte sur des procédés de stérilisation de prothèses implantables. Selon l'invention, on peut utiliser un stent polymère, par exemple, par stérilisation à l'oxyde d'éthylène, à une température inférieure à la température de transition vitreuse du stent. On peut stériliser à part un cathéter de délivrance séparé, et on peut ensuite combiner le stent et le cathéter de délivrance dans un environnement aseptique ou semi-aseptique et les stériliser en tant que système assemblé, de telle sorte que les exigences de stérilisation du système sont relativement inférieures. De plus et/ou différemment, on peut utiliser des ensembles de soupapes et filtres avec un ensemble facultatif de maintien pour maintenir la caractéristique stérile des composants internes d'un système de cathéter.

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