IONTOPHORESIS DEVICE TO DELIVER MULTIPLE ACTIVE AGENTS TO BIOLOGICAL INTERFACES
First Claim
1. An iontophoresis device operable to deliver active agents to a biological interface of a biological entity, comprising:
- an active electrode assembly, the active electrode assembly including a contact face exposed on an exterior of the active electrode to be proximate to a biological interface when in use, an active electrode element operable to apply a first electrical potential, a first active agent reservoir capable of storing a first active agent, at least a second active agent reservoir capable of storing a second active agent, an outermost ion selective membrane exposed to the exterior of the iontophoresis device to form an interface with the biological interface, the outermost ion selective membrane substantially permeable by ions having a first polarity that matches a polarity of the first and the second active agents, and substantially impermeable by ions of a second polarity, opposite the first polarity, at least a portion of the first and second active agent reservoirs formed in the outermost ion selective membrane, the second active agent reservoir spaced laterally in a plane approximately parallel to the contact face from the first active agent reservoir, at least the first and the second active agent reservoirs positioned with respect to the active electrode element to each actively transfer at least some of the first and the second active agents from the iontophoresis device to the biological interface in response to application of the first electrical potential; and
a counter electrode assembly spaced laterally from the active electrode assembly, the counter electrode assembly including a counter electrode element operable to apply a second electrical potential, the second electrical potential being different from the first electrical potential.
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Accused Products
Abstract
An iontophoresis device includes active and counter electrode assemblies. The active electrode assembly includes an active electrode element and at least two laterally spaced active agent reservoirs. The active electrode assembly may also include an outermost ion selective membrane caching an active agent and a further active agent carried by an outer surface of the outermost ion selective membrane. The active electrode assembly may also include an electrolyte reservoir storing electrolyte and an inner ion selective membrane positioned between the electrolyte reservoir and the active agents. The active electrode may also include an inner withdrawable sealing liner between the electrolyte reservoir and the active agents. An outer release liner may protectively cover or overlay the further active agent and/or outer surface prior to use. The active electrode assembly may also include a blister pack of at least two hydrating agent blisters to selectively hydrate dehydrated active agent.
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Citations
30 Claims
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1. An iontophoresis device operable to deliver active agents to a biological interface of a biological entity, comprising:
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an active electrode assembly, the active electrode assembly including a contact face exposed on an exterior of the active electrode to be proximate to a biological interface when in use, an active electrode element operable to apply a first electrical potential, a first active agent reservoir capable of storing a first active agent, at least a second active agent reservoir capable of storing a second active agent, an outermost ion selective membrane exposed to the exterior of the iontophoresis device to form an interface with the biological interface, the outermost ion selective membrane substantially permeable by ions having a first polarity that matches a polarity of the first and the second active agents, and substantially impermeable by ions of a second polarity, opposite the first polarity, at least a portion of the first and second active agent reservoirs formed in the outermost ion selective membrane, the second active agent reservoir spaced laterally in a plane approximately parallel to the contact face from the first active agent reservoir, at least the first and the second active agent reservoirs positioned with respect to the active electrode element to each actively transfer at least some of the first and the second active agents from the iontophoresis device to the biological interface in response to application of the first electrical potential; and
a counter electrode assembly spaced laterally from the active electrode assembly, the counter electrode assembly including a counter electrode element operable to apply a second electrical potential, the second electrical potential being different from the first electrical potential. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An active agent delivery system operable to deliver active agents to at least two distinct areas on a biological interface, the active agent delivery system, comprising:
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an active electrode element operable to provide a first electrical potential; and
a retaining structure having at least two receptacles, each of the receptacles configured to securely receive a respective active agent reservoir, the receptacles spaced laterally with respect to each other to overlie respective ones of the distinct areas on the biological surface when the active agent delivery system is in use;
each of the receptacles at least partially underlying the active electrode element. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An active agent delivery system, comprising:
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an active electrode element operable to provide an electromotive force or current;
an outer ion selective membrane having an outer surface and at least two distinct regions laterally spaced from one another across the outer surface, each of the distinct regions having pores; and
at least two active agents of a first polarity cached within the pores of respective ones of the distinct regions of the ion selective membrane and substantially retained therein in the absence of the electromotive force or current and transferred outwardly from the ion selective membrane in the presence of the electromotive force or current. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification