초록 ▼

An electrotransport apparatus using dispersed ion exchange material (19,93) is disclosed. The ion exchange material (19,93) may be dispersed in either the donor electrode assembly (10), the counter electrode assembly (10) or both electrode assemblies. The dispersed ion exchange material (93) compris

An electrotransport apparatus using dispersed ion exchange material (19,93) is disclosed. The ion exchange material (19,93) may be dispersed in either the donor electrode assembly (10), the counter electrode assembly (10) or both electrode assemblies. The dispersed ion exchange material (93) comprises mobile ionic species (C2) and substantially immobile ionic species (P). The dispersed ion exchange material (93) is consumed during electrotransport of drug or agent (A) in an electrotransport process in which substantially no species which compete with the drug or agent for electrotransport are generated. Electrotransport devices exhibiting reduced polarization are also disclosed.

대표청구항 ▼

[ We claim:] [1.] An electrotransport device comprising:a donor electrode assembly,a counter electrode assembly,a source of electrical power adapted to be electrically connected to the donor electrode assembly and the counter electrode assembly, at least one of the electrode assemblies including a r

[ We claim:] [1.] An electrotransport device comprising:a donor electrode assembly,a counter electrode assembly,a source of electrical power adapted to be electrically connected to the donor electrode assembly and the counter electrode assembly, at least one of the electrode assemblies including a reservoir containing an active agent to be delivered, the reservoir adapted to be placed in active agent transmitting relation with a body surface, and the electrodes adapted to be electrically connected to the source of electrical power, andat least one ion exchange material distributed in a matrix, the ion exchange material providing at least one oxidizable or reducible mobile ionic specie capable of reacting with free electrons and providing at least one substantially immobile ionic specie.