Vascular prosthesis having a composite structure
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United States of America Patent
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-
Oct 28, 1980
Grant Date -
N/A
app pub date -
Jul 3, 1978
filing date -
Jul 1, 1977
priority date (Note) -
Expired
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Abstract
A vascular prosthesis having a composite structure of a porous tubing of polytetrafluoroethylene with polyethyleneimine in the pores of the tubing, the polyethyleneimine being water-insolubilized with the amino groups quaternized and having heparin ionically bound thereto.
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