Impermeable flexible multicompartment bag
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United States of America Patent
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Oct 22, 2002
Grant Date -
N/A
app pub date -
Apr 29, 1998
filing date -
May 2, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to an impermeable flexible multicompartment bag for medical use for sterile solutions, and to a method for the preparation of such bags. Impermeable flexible multicompartment bags for medical use for sterile solutions for perfusions, consisting of two welded sheets of a composite material wherein the sheets forming the inner wall of the bag consist of a polypropylene and are bonded to an outer layer of a thermoplastic polymer by means of a polyolefin layer, characterized in that the sheets facing the contents of the bags which are made of a homophase copolymer of propylene are immediately welded in the intercompartment region and in the peripheral region such that the weld forming the intercompartment region can be ruptured with a force in the range of from 10 to 30 N while the weld in the peripheral region cannot be ruptured.
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