Controlled release dosage form including a banded engine
First Claim
1. A dosage form configured to provide the controlled release of an active agent formulation comprising a reservoir containing an active agent formulation, an engine partially positioned within the reservoir, and the engine not being completely encapsulated by the reservoir, and a band provided over an outer surface of the reservoir and the engine that binds the engine to the reservoir;
- wherein the dosage form is configured to expel the active agent formulation from within the reservoir at a controlled rate after administration of the dosage form to an environment of operation.
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Abstract
The present invention includes a dosage form configured to provide the controlled release of an active agent formulation. A dosage form according to the present invention includes a reservoir containing an active agent formulation and an engine positioned at least partially within the reservoir. In order to reduce the possibility that the engine included in a dosage form of the present invention will separate from the reservoir either during or after fabrication, the dosage form of the present invention includes a band that binds the engine to the reservoir. The band is provided over an outside surface of the both the engine and the reservoir at or near the interface formed where the engine enters the opening provided in the reservoir. The present invention also includes a method of fabricating controlled release dosage forms having banded engine.
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Citations
26 Claims
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1. A dosage form configured to provide the controlled release of an active agent formulation comprising
a reservoir containing an active agent formulation, an engine partially positioned within the reservoir, and the engine not being completely encapsulated by the reservoir, and a band provided over an outer surface of the reservoir and the engine that binds the engine to the reservoir; wherein the dosage form is configured to expel the active agent formulation from within the reservoir at a controlled rate after administration of the dosage form to an environment of operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A dosage form comprising
a reservoir containing an active agent formulation, an osmotic engine partially positioned within an opening formed within the reservoir, and the osmotic engine not being completely encapsulated by the reservoir, a band provided over an outer surface of the reservoir and the engine that binds the engine to the reservoir, a rate controlling membrane, and an exit orifice through which the active agent formulation can be delivered.
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13. A method of manufacturing a dosage form providing the controlled release of an active agent formulation comprising:
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providing a reservoir having an opening that is sized and shaped to receive an engine, providing an engine, positioning the engine within the opening of the reservoir so that the engine partially is positioned within the reservoir, and the engine not being completely encapsulated by the reservoir, and banding the engine that to the reservoir. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification