Medical device balloon

A - Human Necessities – 61 – L

Patent

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Details

A61L 29/06 (2006.01) A61L 29/04 (2006.01)

Patent

CA 2390840

A balloon catheter having a balloon formed at least in part of a blend of a first polymeric material having a first Shore durometer hardness, and at least a second polymeric material having a second Shore durometer hardness less than the Shore durometer hardness of the first polymeric material. The balloon of the invention has enhanced softness and flexibility due to the presence of the second polymeric material, and a lower than expected compliance. In a presently preferred embodiment, the balloon is formed of a blend of polymeric materials comprising polyether block amides.

L'invention concerne un cathéter à ballonnet comprenant un ballonnet fabriqué en partie au moins à partir d'un mélange d'un première polymère présentant une première dureté au duromètre Shore et d'au moins un second polymère présentant une seconde dureté au duromètre Shore inférieure à la première dureté. Le ballonnet de l'invention présente une douceur et une flexibilité améliorées en raison de la présence du second polymère, et une souplesse inférieure à ce que l'on pourrait s'attendre. Dans une mode de réalisation préféré, le ballonnet est fabriqué à partir d'un mélange de polymères comprenant des polyéther bloc amides.

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