Oral osmotic device with hydrogel driving member

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5021053
SERIAL NO

07380229

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An osmotic device for delivering a beneficial drug, such as an anti-fungal, into the mouth of a human patient is disclosed. The device has a size and shape adapting it to be comfortably retained in the mouth for extended periods of time. The device comprises a wall surrounding a compartment housing a layer of an agent that is insoluble to very soluble in aqueous biological fluid, e.g., saliva, and a layer of a fluid swellable, hydrophilic polymer. A passageway in the wall connects the agent with the exterior of the device. The wall is permeable to the passage of aqueous biological fluid but substantially impermeable to the passage of the hydrophilic polymer. In one embodiment the beneficial agent has a different color than the hydrophilic polymer. The wall is sufficiently translucent to permit the patient to see the amount of drug/beneficial agent remaining to be delivered. Marking lines may be provided on the wall indicating the amount of drug/agent which has been delivered and/or the amount remaining to be delivered.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
ALZA CORPORATION950 PAGE MILL ROAD PALO ALTO CALIFORNIA U S A

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barclay, Brian L Sunnyvale, CA 35 2072
Childers, Jerry D Sunnyvale, CA 25 1378
Place, Virgil A Kawaihae, HI 58 3220
Wong, Patrick S L Palo Alto, CA 116 6174
Wright, Jeri Dublin, CA 4 142

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