Absorbable polyoxaesters containing amines and/or amido groups
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United States of America Patent
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Jan 21, 1997
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N/A
app pub date -
Feb 8, 1996
filing date -
Mar 6, 1995
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Abstract
The present invention describes a new aliphatic polyoxaesters that is bioabsorbable and may be used to produce surgical devices such as sutures, sutures with attached needles, molded devices, and the like. The invention also contemplates a process for producing these polyesters. The aliphatic polyoxaesters of the present invention have a first divalent repeating unit of formula I: [O--C(O)--C(R.sub.1) (R.sub.2)--O--(R.sub.3)--O--C(R.sub.1)(R.sub.2)--C(O)--] I and a second repeating unit of the formula: [--O--R.sub.12 --].sub.U, XVI and optionally a third repeating unit with a formula selected from the group consisting of: [--O--R.sub.4 --].sub.A, II [--O--R.sub.5 --C(O)--].sub.B, III ([--O--R.sub.5 --C(O)].sub.P,--O--).sub.L G XI and combinations thereof wherein R.sub.12 contains an internal amine or internal amide group.
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