Osmotic device with self-sealing passageway

Details Osmotic device with self-sealing passageway Osmotic device with self-sealing passageway

A - Human Necessities

61

K

128/104, 167/153

A61K 9/26 (2006.01) A61K 9/00 (2006.01) A61K 9/24 (2006.01) A61M 31/00 (2006.01)

Patent

CA 1269325

ABSTRACT An osmotic dispensing device is disclosed for delivering a medicine to a biological environment of use. The device comprises a semipermeable wall surrounding a compartment comprising a first layer comprising a beneficial agent formulation and a first passageway in the wall for delivering the beneficial agent formulation from the device, and a second layer of a composition comprising a hydrogel and a means for closing a second passageway formed during the manufacture of the device.

507112

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