Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Scleroproteins – e.g. – fibroin – elastin – silk – etc.
Patent
1991-03-15
1992-06-09
Russel, Jeffrey E.
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Scleroproteins, e.g., fibroin, elastin, silk, etc.
424423, 514801, 514953, 530402, 600 36, A61F 206, C07K 308
Patent
active
051208334
ABSTRACT:
A unique method (10) for preparing protein-impacted grafts (22) wherein an untreated graft (22) is impacted and impregnated with a protein solution, ideally a collagen suspension (14) utilizing a dynamic flow soaking process (24). After soaking in the dynamic flow (24), the collagen-impacted graft is thermally and chemically fixed (26). Following a water wash (30) and glycine wash (34), the graft (22) is softened with a plastification procedure (36), after which it is air dried (38) and placed in a package and sterilized. With the method of the present invention, storable, surgically-ready collagen-impacted grafts can be reliably and rapidly prepared with a high degree of control and uniformity of characteristics in each graft than has heretofore been possible.
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