A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
167/165, 71/47,
A61K 9/22 (2006.01) A61D 7/00 (2006.01) A61K 9/00 (2006.01) A61M 31/00 (2006.01)
Patent
CA 1301643
ABSTRACT An improved bolus for releasing a biologi- cally active substance into a liquid environment; the bolus comprise a generally elongate core surrounded by a liquid impermeable casing; in use, the casing has an opening at one or both ends of the core and is pro- gressively shed as the core retreats, to release the active substance at a rate which varies over at least one time period; the main improvement resides in that the bolus casing is, or at least some of its com- ponents are, sufficiently strong to retain integrity without disintegrating in the absence of any support provided by the core.
511246
Baker Rodney C.
Marsden Peter H.
Shepherd Michael T.
Baker Rodney C.
Coopers Animal Health Limited
Marsden Peter H.
Shepherd Michael T.
Swabey Ogilvy Renault
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