Collagen/polysaccharide bilayer matrix

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Matrices

Reexamination Certificate

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C424S078300, C424S486000, C428S316600, C514S001000, C514S002600, C514S023000, C530S402000

Reexamination Certificate

active

06939562

ABSTRACT:
Disclosed are bilayer matrices of a polysaccharide such as collagen (COL) and another polysaccharide such as hyaluronic acid (HA) with various COL/HA ratios. Each layer has a porous structure. These materials are useful for tissue regeneration, particularly when used with orthopedic implants and drug delivery.

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