Photo curable endoprosthesis and method of manufacture

A - Human Necessities – 61 – F

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A61F 2/06 (2006.01) A61F 2/00 (2006.01)

Patent

CA 2503393

Endoprosthesis (10), in its expanded configuration, comprises a generally tubular structure formed from one or more fibers (12). One or more fibers (12) comprise fiber points of intersection (14). Prior to deployment, fibers (12) comprise a photocurable coating (15), at or near points of intersection (14), in semicured form. Following delivery and expansion of the endoprosthesis (10) by suitable means, the delivery catheter (not shown) is replaced by ultraviolet light delivery catheter (18). Ultraviolet radiation is delivered via ultraviolet light delivery catheter (18) and the photocurable coating (15) is cured. Ultraviolet light delivery catheter (18) is then removed from the vessel, and endoprosthesis (10) is left in place.

L'invention concerne de nouvelles endoprothèses comprenant un ou plusieurs matériaux photodurcissables. Ces endoprothèses comprennent des zones où lesdits matériaux photodurcissables sont disposés sélectivement autour desdites endoprothèses et sont durcis conformément aux paramètres désirés, en vue d'obtenir les propriétés variées voulues. Ces propriétés englobent, sans aucun caractère limitatif : la densité de réticulation, la densité du matériau, le module d'élasticité, la vitesse d'érosion, l'extensibilité, la compressibilité, la résistance mécanique, la résistance à la traction, la cristallinité, le coefficient de diffusion et la perméabilité.

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