Patent ID: 9480775
Filing Date: 2016-11-01
CPC Classification: A61K,A61L,A61P

Claim Text:
1. A hydrogel composition for soft tissue augmentation, comprising: a hyaluronic acid polymer crosslinked with collagen via a zero-length crosslinking agent; wherein said hydrogel is formed by: (a) reacting said hyaluronic acid polymer with said collagen via said zero-length cross-linking agent; wherein said zero-length cross-linking agent is a carbodiimide; thereby providing a crosslinked hyaluronic acid/collagen-based composition; and (b) sterilizing the crosslinked hyaluronic acid/collagen-based composition using a gaseous agent or an irradiation source, wherein the irradiation source comprises ultraviolet light, visible light or microwaves.