Method for determining amount of medication in an implantable device
AssigneeAllergan, Inc.
InventorsArlene E. Gwon, David Meadows
Life of this patent
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Abstract
A system for providing controlled release of an active agent in an eye includes a device with a shape thereof for enabling placement of the device under a conjunctiva of an eye and additionally preventing migration of the device in the eye after placement of the device under the conjunctiva. The device may be formed of a material permeable to the passage of an agent disposed in said device. In addition, a tracer may be incorporated in the device to enable visual indication of the amount of active agent in said device when said device is disposed under the conjunctiva. To selectively treat specific areas of the eye, an impermeable layer may be provided for preventing diffusion of the active agent from a selected area of the device.
Claims4
A method for determining an amount of medication in a device, said method comprising the steps of:
- disposing a device having means for visibly indicating the amount of medication therein beneath a tissue layer of a subject;
- and
- visually observing the indicated amount of medication in the device through the tissue layer.
Dependencies are inferred from the claim text.