Polymeric endoprostheses with enhanced strength and...

B - Operations – Transporting – 32 – B

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B32B 1/08 (2006.01) A61F 2/02 (2006.01) A61F 2/04 (2006.01) A61F 2/06 (2006.01) F16L 11/00 (2006.01)

Patent

CA 2556484

Improved polymeric endoprostheses and methods of manufacturing endoprostheses are disclosed herein. The endoprostheses may comprise one or more polymers wherein the polymer chains are substantially aligned circumferentially, and comprising increased radial strength and flexibility. An endoprosthesis according to the invention may comprise a smooth surface. Endoprostheses disclosed herein may be used in the treatment of strictures in lumens of the body. Alternatively, endoprostheses disclosed herein may be used as anchors to secure medical devices within lumens of the body. The endoprostheses disclosed herein may comprise one or more erodible polymer.

L'invention concerne des endoprothèses polymères améliorées et leurs procédés de fabrication. Ces endoprothèses peuvent comprendre un ou plusieurs polymères, les chaînes polymères étant sensiblement alignées de manière circonférentielle et dotées d'une résistance et d'une souplesse radiales accrues. Une endoprothèse selon l'invention peut comprendre une surface lisse. Les endoprothèses selon l'invention peuvent être utilisées dans le traitement de strictions dans les lumières du corps. Autre variante, ces endoprothèses peuvent servir de points d'ancrage pour fixer des dispositifs médicaux dans les lumières du corps. Elles peuvent en outre comprendre un ou plusieurs polymères érodables.

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