Nitric oxide-modified linear poly(ethylenimine) fibers and...

A - Human Necessities – 61 – L

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A61L 27/54 (2006.01) A61L 15/26 (2006.01) A61L 15/44 (2006.01) A61L 17/14 (2006.01) A61L 27/34 (2006.01) A61L 29/08 (2006.01) A61L 29/16 (2006.01) A61L 31/10 (2006.01) A61L 31/16 (2006.01)

Patent

CA 2386765

A novel coating for medical devices provides nitric oxide delivery using nanofibers of linear poly(ethylenimine)diazeniumdiolate. Linear poly(ethylenimine)diazeniumdiolate releases nitric oxide (NO) in a controlled manner to tissues and organs to aid the healing process and to prevent injury to tissues at risk of injury. Electrospun nanofibers of linear poly(ethylenimine)diazeniumdiolate deliver therapeutic levels of NO to the tissues surrounding a medical device while minimizing the alteration of the properties of the device. A nanofiber coating, because of the small size and large surface area per unit mass of the nanofibers, provides a much larger surface area per unit mass while minimizing changes in other properties of the device.

Un nouveau revêtement pour dispositifs médicaux produit une administration d'oxyde nitrique au moyen de nanofibres de polyéthyléniminediazeniumdiolate linéaire. Le polyéthyléniminediazeniumdiolate linéaire libère de l'oxyde nitrique (NO) de manière régulée dans des tissus et des organes afin de favoriser le processus de guérison et de prévenir les lésions de tissus courant ce risque. Des nanofibres filées électriquement de polyéthyléniminediazeniumdiolate linéaire administrent des niveaux thérapeutiques de NO aux tissus entourant un dispositif médical, tandis qu'elles minimisent la modification des propriétés du dispositif. Un revêtement en nanofibres, en raison de sa petite taille et de sa zone superficielle par unité de masse de nanofibres, produit une zone superficielle beaucoup plus grande par unité de masse tandis qu'il minimise des changements des autres propriétés du dispositif.

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