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US 2008/0317820 A1Published application
Delivery System
AssigneeInterag
InventorsMichael John Rathbone, Wade Jeffrey Mace, Keith James Ellis
Life of this patent
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Abstract
A control release device for the delivery of active components, the device including; a rigid housing containing at least one discrete aperture therein, and a driving substance containing the active component(s) placed within the housing, characterized in that the driving substance swells in the presence of fluid, driving the substance and active components out of the housing through the apertures.
Claims23
A control release device for the delivery of active components, the device including;
- a substantially impermeable rigid housing containing at least one discrete aperture therein,
- a driving substance containing at least one active component placed within the housing,
- characterised in that the driving substance swells in the presence of fluid, driving the substance and active component(s) out of the housing through the aperture(s).
A method of manufacturing a control release device, characterized by the step of
- a) placing a driving substance containing at least one active component into a substantially impermeable rigid housing, wherein the housing includes at least one discrete aperture therein,
- wherein the driving substance swells in the presence of fluid, driving the substance and active compound(s) out of the housing through the aperture(s).
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Dependencies are inferred from the claim text.