Multilayer hollow fiber body and method of making
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United States of America Patent
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Mar 30, 1999
Issued Date -
N/A
app pub date -
Apr 30, 1998
filing date -
Nov 30, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A multilayer hollow fiber body useful, for example, in a blood oxygenator. The multilayer hollow fiber body comprises a single hollow fiber mat arranged in the form of a body comprising a plurality of hollow fiber plies. The mat comprises a plurality of generally parallel hollow fibers disposed at regular intervals, and a plurality of connecting fibers holding the connecting fibers. The mat is repeatedly folded over on itself along fold lines, each of which is at an oblique angle to the hollow fibers, to form a multilayer hollow fiber body in which the hollow fibers of any ply of the multilayer hollow fiber body are disposed so as to cross the hollow fibers of an adjacent successive ply of the multilayer hollow fiber body. Also disclosed is a method of making the multilayer hollow fiber body.
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