Iontophoretic patch with hydrogel reservoir

Details Iontophoretic patch with hydrogel reservoir Iontophoretic patch with hydrogel reservoir

A - Human Necessities

61

N

A61N 1/30 (2006.01) A61K 9/00 (2006.01)

Patent

CA 2249039

An improved hydrogel reservoir for use in two-compartment iontophoretic patches is described. The hydrogel reservoir contains a water soluble polyelectrolyte and a fluid. The reservoir may also contain a matrix forming material such as polyvinylpyrrolidone. A preferred water-soluble polyelectrolyte is sodium polystyrene sulfonate.

Divulgation d'un réservoir amélioré d'hydrogel à utiliser dans des timbres ionophorétiques à deux compartiments. Le réservoir d'hydrogel contient un polyélectrolyte soluble dans l'eau et un fluide. Le réservoir peut aussi comprendre une matière formant une matrice comme de la polyvinylpyrrolidone. Un polyélectrolyte soluble dans l'eau préféré est le sulfonate de polystyrène de sodium.

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