Skin electrode construction and transdermal drug delivery device utilizing same
AssigneeS. I. Scientific Innovations Ltd.
InventorsJoseph Gross, Shlomo Zucker
Life of this patent
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Abstract
A transdermal drug delivery device includes an electrode, a porous insulating layer on one side of the electrode and impregnated with a liquid containing the drug to be delivered, a reservoir for the liquid on the other side of the electrode, and a displaceable diaphragm controlling the feeding of the liquid from the reservoir to the porous insulating layer via a passageway through the electrode.
Claims18
An electrical device for application to a subject's skin, including an electrode and a porous insulating layer thereover impregnated with a liquid to be placed in contact with the subject's skin in order to reduce or eliminate skin irritation or skin burn;
- characterized in that said device includes:
- a reservoir for said liquid in communication with said porous insulating layer;
- a displaceable member controlling the feeding of said liquid from the reservoir to said porous insulating layer;
- and control means for controlling said displaceable member and thereby the feeding of the liquid from the reservoir to said porous insulating layer so as to reduce or eliminate skin irritation or skin burn.
A transdermal drug delivery device for delivering a liquid drug to a subject, comprising:
- a porous insulating layer having means for attaching the device to a subject with one side of the porous insulating layer in contact with the subject's skin;
- a reservoir on an opposite side of the porous insulating layer for a liquid drug to be delivered;
- a displaceable diaphragm controlling the feeding of the liquid drug from the reservoir to the porous insulating layer;
- and control means including a pressure chamber having an electrolytic cell capable of generating a gas corresponding to electric current applied to the electrolytic cell for controlling said displaceable member and thereby the rate of feed of the liquid from the reservoir to said porous insulating layer.
A transdermal drug delivery device, for delivering a drug to a subject, comprising:
- first and second electrodes each covered on one side by a porous insulating layer impregnated with a liquid to be placed in contact with the subject's skin;
- a reservoir for each liquid on the other side of each electrode in communication with the porous insulating layer thereof, at least one liquid including a drug to be transdermally delivered to the subject;
- each of said reservoirs including a displaceable member controlling the feed of the liquid from its respective reservoir to the porous insulating layer of its respective electrode;
- and control means for controlling said displaceable members, and thereby the rate of feed of the liquid, from each reservoir to the porous insulating layer of its respective electrode.
Dependencies are inferred from the claim text.