Microcapsules containing viable tissue cells
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United States of America Patent
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Jul 5, 1983
Issued Date -
N/A
app pub date -
May 1, 1981
filing date -
Mar 28, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Tissue cells such as islet of Langerhans cells or liver cells are encapsulated within a spheroidal semipermeable membrane comprising a polysaccharide having acidic groups cross-linked with a polymer having a molecular weight greater than 3,000. The cells within the microcapsules are viable, healthy, physiologically active and capable of ongoing metabolism. The encapsulated cells are useful for implantation in a mammalian body to produce substances and effect chemical changes characteristic of the cells in vivo tissue.
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