Local delivery of water-soluble or water-insoluble...

A - Human Necessities – 61 – K

Patent

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Details

A61K 47/02 (2006.01) A61K 31/337 (2006.01) A61K 31/4353 (2006.01) A61K 31/436 (2006.01) A61L 31/08 (2006.01) A61L 31/16 (2006.01)

Patent

CA 2736500

A method and device for local delivery of water-soluble or water-insoluble therapeutic agents to the surface of a normal or diseased body lumen is disclosed. An expandable structure of a medical disposable device, such as a balloon of a bal-loon catheter, is coated with an amphiphilic polymer coating comprising a therapeutic agent and an amphiphilic polymer or co--polymer. The medical disposable device is inserted into a body lumen, and expanded to contact the amphiphilic polymer coating against the body lumen. The total solubility of the polymer or co-polymer in vivo prevents any embolic hazard associated with the amphiphilic polymer coating.

L'invention porte sur un procédé et sur un dispositif d'administration locale d'agents thérapeutiques solubles dans l'eau ou insolubles dans l'eau à la surface d'une lumière corporelle normale ou malade. Une structure expansible d'un dispositif jetable médical, tel qu'un ballonnet d'un cathéter à ballonnet, est revêtue d'un revêtement polymère amphiphile comprenant un agent thérapeutique et un polymère ou copolymère amphiphile. Le dispositif jetable médical est introduit à l'intérieur d'une lumière corporelle, et déployé pour entrer en contact avec le revêtement polymère amphiphile contre la lumière corporelle. La solubilité totale du polymère ou copolymère in vivo empêche tout risque embolique associé au revêtement polymère amphiphile.

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