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US 4,424,208 AGranted
Collagen implant material and method for augmenting soft tissue
AssigneeCollagen Corporation
InventorsDonald G. Wallace, Susan B. Wade
Life of this patent
Estimating the term…
Abstract
An injectable implant material for soft tissue augmentation comprising a dispersion of (a) particles of cross-linked atelopeptide collagen; and (b) reconstituted fibrous atelopeptide collagen in a (c) physiological aqueous carrier. Implants of this material have improved persistence relative to currently used collagen implant materials.
Claims7
An injectable implant material for soft tissue augmentation comprising a dispersion of:
- (a) particulate cross-linked atelopeptide collagen;
- and
- (b) reconstituted fibrous atelopeptide collagen;
- dispersed in
- (c) an aqueous carrier wherein the total collagen in the dispersion is in the range of about 15 to about 80 mg/ml, the cross-linked collagen constitutes about 70% to 95% by weight of the total collagen in the dispersion and the fibrous collagen constitutes about 5% to about 30% by weight of the total collagen in the dispersion.
2 more elements
A method for augmenting soft tissue in a living mammal comprising injecting the material of claim 1 or 7 into the mammal at the augmentation site.
Dependencies are inferred from the claim text.