Osmotic device for administering certain drugs
September 2, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesOsmotic system having laminar arrangement for programming delivery of active agent Laminated osmotic system for dispensing beneficial agent Apparatus for tracking moving workpiece by a laser beam Osmotic devices having composite walls Osmotic releasing device having a plurality of release rate patterns Stabilized solutions of sodium dithionite Osmotic system for the controlled and delivery of agent over time Selective administration of drug with ocular therapeutic system Osmotic device with compartment for governing concentration of agent dispensed from device Process for manufacturing device with dispersion zone InventorsApplicationNo. 06/902915 filed on 09/02/1986US Classes:424/473With porous, perforated, apertured, or sieved layer (e.g., dialyzing layer, microporous layer, etc.)ExaminersPrimary: Michl, Paul R.Assistant: Wright, Lee C. Attorney, Agent or FirmInternational ClassA61K 9/00 (20060101)AbstractAn osmotic system is disclosed comprising a wall comprising in at least a part of a semipermeable material that surrounds a compartment. The compartment contains an osmotic composition comprising a beneficial drug selected from the group consisting of nifedipine, prazosin and doxazosin, and a second and different osmotic composition. A passageway in the wall connects the first composition with the exterior of the system. | |
