Patent classifications
A61L27/46
Implant of Osteostimulative Material
The present disclosure provides a bone-implantable device and methods of use. The bone-implantable device comprises a body having an exterior surface, wherein a portion of the exterior surface includes a cured osteostimulative material comprising MgO.
Degradable magnesium-containing calcium phosphate-calcium sulfate porous composite biological scaffold
A method for preparing a degradable magnesium-containing calcium phosphate-calcium sulfate porous composite biological scaffold by subjecting a calcined bovine cancellous bone mineral porous scaffold to a treatment using a ternary system containing a magnesium source, a sulfur source and a phosphorus source, taking out and drying, and subjecting to a high-temperature calcination. The degradable magnesium-containing calcium phosphate-calcium sulfate porous composite biological scaffold has good three-dimensional interconnected mesh structure, osteoconductivity, degradability, good mechanical strength and biocompatibility, simultaneously. At the same time, calcium sulfate whiskers with larger length-diameter ratio grow in the mesh, thereby increasing the specific surface area of the material and possibly improve the adhesion of cells. The composite biological scaffold may have potential osteoinductivity due to the effective addition of the osteogenic active ionized magnesium and the calcium sulfate which can produce a local high-calcium environment when degraded.
Degradable magnesium-containing calcium phosphate-calcium sulfate porous composite biological scaffold
A method for preparing a degradable magnesium-containing calcium phosphate-calcium sulfate porous composite biological scaffold by subjecting a calcined bovine cancellous bone mineral porous scaffold to a treatment using a ternary system containing a magnesium source, a sulfur source and a phosphorus source, taking out and drying, and subjecting to a high-temperature calcination. The degradable magnesium-containing calcium phosphate-calcium sulfate porous composite biological scaffold has good three-dimensional interconnected mesh structure, osteoconductivity, degradability, good mechanical strength and biocompatibility, simultaneously. At the same time, calcium sulfate whiskers with larger length-diameter ratio grow in the mesh, thereby increasing the specific surface area of the material and possibly improve the adhesion of cells. The composite biological scaffold may have potential osteoinductivity due to the effective addition of the osteogenic active ionized magnesium and the calcium sulfate which can produce a local high-calcium environment when degraded.
DRIED IMPLANT COMPOSITION AND INJECTABLE AQUEOUS IMPLANT FORMULATION
A dried implant composition for preparing an injectable aqueous implant formulation that is extrudable through a tapering system and a gauge 18 cannula, including a mixture of nanocrystalline hydroxyapatite particles derived from natural bone having a size of 50 to 200 m and fragments of naturally crosslinked fibrous collagen material that pass through a 0.5 mm sieve; an injectable aqueous implant formulation, wherein the injectable aqueous implant formulation is obtainable by hydration and homogeneous mixing; a process for preparing the injectable aqueous implant formulation; and a kit for preparing the injectable aqueous implant formulation.
DRIED IMPLANT COMPOSITION AND INJECTABLE AQUEOUS IMPLANT FORMULATION
A dried implant composition for preparing an injectable aqueous implant formulation that is extrudable through a tapering system and a gauge 18 cannula, including a mixture of nanocrystalline hydroxyapatite particles derived from natural bone having a size of 50 to 200 m and fragments of naturally crosslinked fibrous collagen material that pass through a 0.5 mm sieve; an injectable aqueous implant formulation, wherein the injectable aqueous implant formulation is obtainable by hydration and homogeneous mixing; a process for preparing the injectable aqueous implant formulation; and a kit for preparing the injectable aqueous implant formulation.
DRIED IMPLANT COMPOSITION AND INJECTABLE AQUEOUS IMPLANT FORMULATION
A dried implant composition for preparing an injectable aqueous implant formulation that is extrudable through a tapering system and a gauge 18 cannula, including a mixture of nanocrystalline hydroxyapatite particles derived from natural bone having a size of 50 to 200 m and fragments of naturally crosslinked fibrous collagen material that pass through a 0.5 mm sieve; an injectable aqueous implant formulation, wherein the injectable aqueous implant formulation is obtainable by hydration and homogeneous mixing; a process for preparing the injectable aqueous implant formulation; and a kit for preparing the injectable aqueous implant formulation.
Composite materials for bone repair based on decellularized biological tissue matrix material and the preparation method thereof
A composite material for bone repair based on a decellularized biological tissue matrix material and a preparation method thereof. The composite material for bone repair comprises an organic phase of a microfibrillar decellularized animal tissue matrix material and an inorganic phase of a calcium salt bioceramic or other inorganic bioglass. A preparation process for the composite material for bone repair does not need physical or chemical crosslinking. The composite material for bone repair has a three-dimensional porous network structure, and protein components in the biological tissue matrix material maintain a natural triplex structure. The composite material for bone repair has excellent biocompatibility, biodegradability, osteoconductivity, osteoinductivity, and osteogenecity, also has certain mechanical strength and shape memory function, and can be used as a bone filling material or a repair material for large-area bone defect.
Composite materials for bone repair based on decellularized biological tissue matrix material and the preparation method thereof
A composite material for bone repair based on a decellularized biological tissue matrix material and a preparation method thereof. The composite material for bone repair comprises an organic phase of a microfibrillar decellularized animal tissue matrix material and an inorganic phase of a calcium salt bioceramic or other inorganic bioglass. A preparation process for the composite material for bone repair does not need physical or chemical crosslinking. The composite material for bone repair has a three-dimensional porous network structure, and protein components in the biological tissue matrix material maintain a natural triplex structure. The composite material for bone repair has excellent biocompatibility, biodegradability, osteoconductivity, osteoinductivity, and osteogenecity, also has certain mechanical strength and shape memory function, and can be used as a bone filling material or a repair material for large-area bone defect.
Composite materials for bone repair based on decellularized biological tissue matrix material and the preparation method thereof
A composite material for bone repair based on a decellularized biological tissue matrix material and a preparation method thereof. The composite material for bone repair comprises an organic phase of a microfibrillar decellularized animal tissue matrix material and an inorganic phase of a calcium salt bioceramic or other inorganic bioglass. A preparation process for the composite material for bone repair does not need physical or chemical crosslinking. The composite material for bone repair has a three-dimensional porous network structure, and protein components in the biological tissue matrix material maintain a natural triplex structure. The composite material for bone repair has excellent biocompatibility, biodegradability, osteoconductivity, osteoinductivity, and osteogenecity, also has certain mechanical strength and shape memory function, and can be used as a bone filling material or a repair material for large-area bone defect.
Connective-tissue-based or dermal-tissue-based grafts/implants
The present invention is directed to a composition comprising a matrix suitable for implantation in humans, comprising defatted, shredded, allogeneic human muscle tissue that has been combined with an aqueous carrier and dried in a predetermined shape. Also disclosed is a tissue graft or implant comprising a matrix suitable for implantation in humans, comprising defatted, shredded, allogeneic human muscle tissue that has been combined with an aqueous carrier and dried in a predetermined shape. The composition and/or tissue graft or implant of the invention is usable in combination with seeded cells, a tissue growth factor, and/or a chemotactic gent to attract a desired cell.