Surgery – Controlled release therapeutic device or system
Patent
1982-11-26
1984-10-23
Padgett, Benjamin R.
Surgery
Controlled release therapeutic device or system
604893, A61M 500
Patent
active
044785968
ABSTRACT:
A system for the controlled delivery of a physiologically active agent to a fluid environment having a semipermeable sheath with a plurality of pores, the sheath being imperforate except for the plurality of pores and defining a fully enclosed cavity for holding a physiologically active agent. A physiologically active agent is contained in the fully enclosed cavity for delivery to a fluid environment, with the plurality of pores being of a size to permit both the flow of fluid from the fluid environment through the semipermeable sheath into the cavity and the flow of fluid and physiologically active agent in solution out of the cavity into the fluid environment whereby the physiologically active agent is delivered from the semipermeable sheath exclusively through the plurality of pores.
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Padgett Benjamin R.
Wallen T. J.
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