Surgery – Means for introducing or removing material from body for... – Infrared – visible light – ultraviolet – x-ray or electrical...
Patent
1984-10-12
1986-11-11
Cohen, Lee S.
Surgery
Means for introducing or removing material from body for...
Infrared, visible light, ultraviolet, x-ray or electrical...
128798, A61N 130
Patent
active
046220313
ABSTRACT:
An indicator for indicating the in vivo delivery of a drug by the electrophoretic deposition of a medicament through or on a skin surface. The device includes layers forming a reservoir containing the drug, a battery layer superimposed on the reservoir, and a cover of electrically conductive material fully enclosing the layers and having a lip along its periphery to electro-conductively engage the skin surface and form an electrical circuit. An indicator, such as an LCD or an electrochemically phototropic material (ECM) is in the circuit during which closing of the circuit, the current causes delivery of the drug and activates the LCD or ECM so as to indicate delivery to the user.
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Cohen Lee S.
Drug Delivery Systems Inc.
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