Polymer coated device for electrically mediated drug delivery

A - Human Necessities – 61 – N

Patent

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A61N 1/30 (2006.01)

Patent

CA 2547605

The present invention relates to a catheter (11) with an expandable distal end (31) for delivery one or more medicaments. The distal end is coated with a hydrogel copolymer encapsulating one or more medicaments. The construction of the device facilitates electrophoretic and electro-osmostic mobilities of the medicaments.

L'invention concerne un cathéter ayant une extrémité distale dilatable permettant d'administrer un ou plusieurs médicaments. Ledit cathéter est fabriqué en matériaux de construction qui permettent le transfert de l'énergie électrique de l'extrémité proximale vers l'extrémité distale dilatable dudit cathéter. Ledit cathéter a également un organe qui commande ou qui manipule l'extrémité distale dilatable de façon que celle-ci se dilate ou se contracte selon différentes configurations. L'extrémité distale du cathéter est traitée suivant un procédé de fabrication spécifique au terme duquel ladite extrémité est revêtue d'une ou de plusieurs couches de copolymère d'hydrogel dont au moins une renferme un ou plusieurs médicaments et zéro ou plusieurs porteurs de charge qui facilitent les mobilités électrophorétiques et électro-osmotiques des médicaments.

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