Iontophoresis device
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United States of America Patent
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Sep 15, 2009
Grant Date -
Jun 15, 2006
app pub date -
Jun 30, 2005
filing date -
Dec 9, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An iontophoresis device for administering drug ions via the first ion-exchange membrane, comprising a first semi-permeable film having a number of pores passing through the film from a front surface to a back surface, a first ion-exchange membrane formed of ion-exchange resin filling the pores of the first semi-permeable film and selective ions of a first polarity, and a working electrode structure having a drug holding part placed on a back surface of the first ion-exchange membrane and holding a drug solution containing drug ions charged in the first polarity, wherein a layer of a water-soluble polymer compound is chemically bonded on the surface of the first semi-permeable film.
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