Patent ID: 11918704
Assignee: VIVEX BIOLOGICS GROUP, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 43:
44. The infused composition of claim 11 wherein the fibers are infused with the polyampholyte cryoprotectant for direct implantation wherein said polyampholyte cryoprotectant is a 1-50 w/w % aqueous solution of at least one polyamine polymer compound comprised of at least one polymer of units having side-chain amino groups, said at least one polymer of units being selected from a group consisting of ε-poly-L-lysine, α-poly-L-lysine, poly-arginine, allylamine polymer and partially methoxy-carbonylated allylamine polymer; and 50-99 mol % of amino groups, other than those forming amino-acid-to-amino-acid linkages, of said at least one polymer compound is blocked with carboxylic anhydride to form pendant moieties, each of which is linked to main chain of the polymer via an amide linkage and essentially has a not-blocked carboxylic group.