Dural Regeneration Matrix DuraGen® Plus Collagen 1 X 1 InchUltra Pure Collagen limits uncertainty: no reported foreign body reactions or graft rejections in over 750,000 patients Provides the structure for initial fibrin clot formation to prevent CSF leakage Excellent conformability ensures graft approximation at the dural margin to protect against CSF leakage Has an optimized pore structure to ensure consistent matrix hydration and uniform tissue repair throughout the dural graft Matrix resorbs at a similar