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OwnerStephen F. Badylak, Robert J. Demeter +3inventors
InventorsStephen F. Badylak, Robert J. Demeter, Michael Hiles, Sherry Voytik, Peter M. Knapp, Jr.
Estimating the term…
A fluidized, injectable tissue graft composition is described. The composition comprises comminuted intestinal submucosa or protease-digested intestinal submucosa. Methods for the preparation and use of injectable tissue graft compositions are described. In preferred embodiments the tissue graft material is prepared from the intestinal submucosa comprising the tunica submucosa, the muscularis mucosa and the stratum compactum of a segment of intestinal tissue of a warm-blooded vertebrate. Effective amounts of the fluidized graft compositions can be injected to promote repair tissue defects by inducing formation of endogenous tissues.
A method of preparing an injectable tissue graft composition, said method comprising the steps of comminuting intestinal tissue consisting essentially of the tunica submucosa, the muscularis mucosa and stratum compactum of the tunica mucosa of the intestine of a warm-blooded vertebrate and hydrating the resultant comminuted intestinal tissue to provide said tissue graft composition as a fluid having a viscosity of about 2 to about 300,000 cps at 25.degree. C.
A method of preparing an injectable tissue graft composition, said method comprising the step of digesting intestinal tissue consisting essentially of the tunica submucosa, the muscularis mucosa and stratum compactum of the tunica mucosa of the intestine of a warm-blooded vertebrate in aqueous solution with a protease for a period of time sufficient to solubilize said intestinal tissue to form a substantially homogeneous solution.
An injectable, non-immunogenic tissue graft composition comprising a suspension of comminuted intestinal tissue consisting essentially of the tunica submucosa, the muscularis mucosa and stratum compactum of the tunica mucosa of the intestine of a warm-blooded vertebrate in an aqueous carrier.
An injectable, non-immunogenic tissue graft composition comprising a suspension of protease-digested intestinal tissue consisting essentially of the tunica submucosa, the muscularis mucosa and stratum compactum of the tunica mucosa of the intestine of a warm-blooded vertebrate in an aqueous carrier.
Dependencies are inferred from the claim text.