Surgery – Controlled release therapeutic device or system – Osmotic or diffusion pumped device or system
Patent
1984-04-17
1986-11-18
Vinyard, Sherri E.
Surgery
Controlled release therapeutic device or system
Osmotic or diffusion pumped device or system
604 93, A61M 3100
Patent
active
046233458
ABSTRACT:
A capsule for administration to a ruminant, comprises two body portions of magnesium or an alloy thereof, pivotally connected for movement between a relatively small cross-sectional configuration in which the capsule can be administered per os into the rumen, and a relatively larger cross-sectional configuration adopted within the rumen to resist regurgitation. The pivotal connection between the body portions is provided by a resiliently flexible material such as rubber or silicone made electrically conductive by means of a matrix of conductive particles, for example carbon particles. The flexible material at least partially covers a surface of each body portion. When the capsule is in the rumen the conductive particles act as a cathode and the body portions as anodes.
REFERENCES:
patent: 3844285 (1974-10-01), Laby
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