BIOABSORBABLE IMPLANTABLE SUBSTRATE

摘要

There is described a method of producing a bioabsorbable, implantable substrate having a graded molecular weight distribution, comprising exposing at least a portion of an implantable substrate to electron beam irradiation. There is also provided a bioabsorbable implantable substrate comprising a bioabsorbable polymer having a graded molecular weight distribution through at least a portion of its thickness.