Medical devices having polymeric regions with improved adhesion

Details Medical devices having polymeric regions with improved adhesion Medical devices having polymeric regions with improved adhesion

A - Human Necessities

61

L

A61L 31/02 (2006.01) A61L 31/04 (2006.01) A61L 31/14 (2006.01)

Patent

CA 2666044

According to an aspect of the present invention, implantable or insert able medical devices are provided, which contain at least one polymeric region in contact with a metallic region. The polymeric region contains at least one block copolymer that contains at least one low Tg block and at least one high Tg block. The polymeric region contains at least one polymer that contains at least one adhesion promoting group selected from one or more of halo-silane, alkoxy-silane, epoxy, anhydride, phenoxy, hydroxyl, amino, sulfonate and carboxyl groups, which at least one polymer may correspond to the block copolymer, a supplemental polymer, or both.

Selon un aspect de la présente invention, des dispositifs médicaux pouvant être implantés ou insérés sont proposés, qui contiennent au moins une région polymère en contact avec une région métallique. La région polymère contient au moins un copolymère séquencé qui contient au moins un bloc à faible Tg et au moins un bloc à Tg élevée. La région polymère contient au moins un polymère qui contient au moins un groupe favorisant l'adhérence choisi parmi un ou plusieurs parmi les groupes halo-silane, alcoxy-silane, époxy, anhydride, phénoxy, hydroxyle, amine, sulfonate et carboxyle, dont au moins un polymère peut correspondre au copolymère séquencé, à un polymère supplémentaire, ou les deux.

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