Endovascular treatment devices and methods

Details Endovascular treatment devices and methods Endovascular treatment devices and methods

A - Human Necessities

61

F

A61F 2/82 (2006.01) A61B 17/00 (2006.01) A61F 2/84 (2006.01) A61F 2/90 (2006.01) A61F 2/92 (2006.01) A61L 27/42 (2006.01) A61L 27/44 (2006.01)

Patent

CA 2554223

A device for treating or preventing a vascular condition at a mammalian vascular site, comprises an implant formed from a compressible, reticulated elastomeric matrix in a shape conducive to delivery through a delivery instrument. One or more implants are delivered in a compressed state to the mammmalian vascular site where each implant recovers substantially to its uncompressed state following deployment from a delivery instrument. In a preferred embodiment the matrix comprises cross-linked polycarbonate polyurethane-urea or cross-linked polycarbonate polyurea-urethane. In another preferred embodiment the matrix comprises a cross-linked polycarbonate polyurethane. In a yet further embodiment, the matrix comprises thermoplastic polycarbonate polyurethane or thermoplastic polycarbonate polyurethane-urea.

L'invention concerne un dispositif pour le traitement ou la prévention d'une affection vasculaire sur un site vasculaire mammalien, qui comprend : implant en matrice élastomère réticulée compressible selon une forme permettant la délivrance via un instrument de délivrance. On délivre ainsi un ou plusieurs implants à l'état comprimé, au niveau du site vasculaire, et chaque implant reprend sensiblement sa forme non comprimée après déploiement depuis un instrument de délivrance. En mode de réalisation préféré, la matrice comprend : polyuréthanne-urée de polycarbonate réticulé ou polycarbonate polyurée-uréthanne de polycarbonate réticulé. Selon un autre mode de réalisation préféré, la matrice comprend un polyuréthanne de polycarbonate réticulé. Selon un dernier mode de réalisation préféré, la matrice comprend : polyuréthanne de polycarbonate thermoplastique ou polycarbonate polyuréthanne-urée de polycarbonate.

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