Pores of controlled geometry on a thermoplastic polymer
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United States of America Patent
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-
Jul 26, 1994
Issued Date -
N/A
app pub date -
Jan 25, 1993
filing date -
Sep 11, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process is provided for manufacturing nonwoven, nonbiodegradable tissue ingrowth-inducing, tissue-interfacing substrates with predetermined oriented uniform pore diameter, pore density and pore depth. Pins are inserted to a predetermined depth into a softened thermoplastic substrate or, heated pins are inserted into the substrate, then removed to form the predetermined pore pattern.
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Cited Art Landscape
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