Controlled release formulations in delivery devices
AssigneeArgenta Innovation Limited
InventorsDavid Anthony GILL, Desmond Ian John MORROW, Michael VENNING
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Abstract
The present invention provides an intra-ruminal device comprising a body substantially impervious to rumen fluid, the body comprising a barrel, at least one outlet, and at least one matrix in the barrel, a compression arrangement within the body adapted to bias the column of matrices in the barrel to the at least one outlet, and at least one variable geometry device dependent from the body to assist numen retention, wherein the at least one matrix in the barrel comprises at least one active ingredient and at least one polymer selected from the group consisting of a non-ionic polymer and a cross-linked anionic polymer. The invention also provides a method of making and using the device.
Claims23
An intra-ruminal device comprising
- a body substantially impervious to rumen fluid, the body comprising a barrel, at least one outlet, and at least one matrix in the barrel,
- a compression arrangement within the body adapted to bias the column of matrices in the barrel to the at least one outlet, and
- at least one variable geometry device, dependent from the body to assist rumen retention,
- wherein the at least one matrix in the barrel comprises at least one active ingredient and at least one polymer selected from the group consisting of a non-ionic polymer and a cross-linked anionic polymer.
-14. (canceled)
-24. (canceled)
(canceled)
Dependencies are inferred from the claim text.