Tiered therapeutic release from a single reservoir of an ophthalmic device

Abstract

A tiered therapeutic reservoir of an ophthalmic device is described for controlled delivery of two or more therapeutic doses to a patient's eye. An ophthalmic device can include a reservoir having an interior and a metal electrode covering an opening of the reservoir. The interior of the reservoir can hold one or more pharmaceuticals or does of pharmaceuticals (referred to as drugs). The reservoir can hold a first drug and a second drug, with a sacrificial barrier layer positioned between the first drug and the second drug. The metal electrode can electrodissolve upon receiving an electrical signal to release the first drug from the reservoir. The sacrificial barrier layer can be sacrificed after the electrodissolution of the metal electrode to release the second drug from the reservoir. The first drug and the second drug can be released to an eye of a patient in contact with the ophthalmic device.

Dependencies are inferred from the claim text.