Tissue implant systems and methods for sustaining viable high cell densities within a host
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United States of America Patent
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Jan 14, 1997
Issued Date -
N/A
app pub date -
May 23, 1994
filing date -
Oct 31, 1990
priority date (Note) -
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Abstract
A method for implanting cells is disclosed which employs a chamber having a wall forming porous boundary between the host and implanted cells. According to the method, a given number of cells (N) is placed within the porous boundary of a given area (A) such that the quantity A/N is less than about 200 .mu.m.sup.2 /cell. The porous boundary has a pore size, an ultimate strength, and a metabolic transit value that assures the survival of the cells during the critical ischemic period and afterward.
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