Iontophoresis electrode
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United States of America Patent
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Jan 28, 1992
Grant Date -
N/A
app pub date -
Dec 22, 1989
filing date -
Dec 22, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved iontophoresis electrode employing a current distributing member and a drug reservoir containing an ionic drug. In direct or intimate contact with the current distribution member is a salt layer or ion source layer. In direct or intimate contact with the salt layer or ion source material is a size selective (i.e., a semipermeable membrane) or a material selective for ions having a charge opposite to the charge of the ionic drug which is to be delivered (i.e., a charge selective mebmrane). The current distribution member is separated from the drug reservoir by means of the salt layer and the membrane.
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