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US 7,252,832 B1Granted
Composite collagen material and method of forming same
AssigneeBiomet Sports Medicine, LLC
InventorsKevin T. Stone, Karen Troxel
Life of this patent
Estimating the term…
Abstract
A felt for repairing soft tissue defects comprising a membranous collagen substrate and a bioresorbable fiber felted onto the collagen substrate. Methods of preparing a felt and methods of repairing soft tissue damage with a felt are also provided.
Claims18
A felt for repairing cartilage, ligament, or tendon soft tissue defects, comprising:
- a. a membranous collagen substrate;
- and
- b. a bioresorbable material felted onto said collagen substrate;
- wherein the bioresorbable material is selected from a synthetic polymer, a natural polymer, a polysaccharide, or combinations thereof;
- further wherein the synthetic polymer is selected from the group consisting of:
- polymers and co-polymers of glycolic acid, L-lactic acid, D-lactic acid, urethane urea, trimethylene carbonate, dioxanone, caprolactone, hydroxybutyrate, orthoesters, orthocarbonates, aminocarbonates, and physical combinations thereof;
- the natural polymer is selected from the group consisting of:
- elastin, silk, fibrin, fibrinogen, and mixtures thereof;
- and the polysaccharide is selected from the group consisting of:
- hyaluronic acid, chitin, chitosan, alginate, carboxymethylcellulose, and mixtures thereof.
7 more elements
A felt for repairing soft tissue defects, comprising:
- a. a membranous collagen substrate;
- and
- b. a bioresorbable material felted onto said collagen substrate, wherein the bioresorbable material comprises a polysaccharide selected from the group consisting of:
- hyaluronic acid, chitin, chitosan, alginate, carboxymethylcellulose, and mixtures thereof.
1 more element
A method of preparing a felt, comprising:
- a. providing a membranous collagen substrate;
- and
- b. felting a bioresorbable polymer in the form of a batting, web, or thread onto said substrate with a needle to pass said non-collagen bioresorbable polymer through said membranous collagen substrate;
- wherein the bioresorbable material is selected from a synthetic polymer, a natural polymer, a polysaccharide, or combinations thereof;
- further wherein the synthetic polymer is selected from the group consisting of:
- polymers and co-polymers of glycolic acid, L-lactic acid, D-lactic acid, urethane urea, trimethylene carbonate, dioxanone, caprolactone, hydroxybutyrate, orthoesters, orthocarbonates, aminocarbonates, and physical combinations thereof;
- the natural polymer is selected from the group consisting of:
- elastin, silk, fibrin, fibrinogen, and mixtures thereof;
- and the polysaccharide is selected from the group consisting of:
- hyaluronic acid, chitin, chitosan, alginate, carboxymethylcellulose, and mixtures thereof.
7 more elements
A method of augmenting a cartilage, ligament, or tendon site in need of soft tissue repair, comprising:
- a. providing a felt, comprising a membranous collagen substrate and a non-collagen bioresorbable polymer felted onto said substrate;
- and
- b. placing said felt at said site in need of soft tissue repair;
- wherein the bioresorbable material is selected from a synthetic polymer, a natural polymer, a polysaccharide, or combinations thereof;
- further wherein the synthetic polymer is selected from the group consisting of:
- polymers and co-polymers of glycolic acid, L-lactic acid, D-lactic acid, urethane urea, trimethylene carbonate, dioxanone, caprolactone, hydroxybutyrate, orthoesters, orthocarbonates, aminocarbonates, and physical combinations thereof;
- the natural polymer is selected from the group consisting of:
- elastin, silk, fibrin, fibrinogen, and mixtures thereof;
- and the polysaccharide is selected from the group consisting of:
- hyaluronic acid, chitin, chitosan, alginate, carboxymethylcellulose, and mixtures thereof.
7 more elements
Dependencies are inferred from the claim text.