Patent classifications
A61L27/427
Iodine-loaded bone repair material and method for producing the same
A highly safe and inexpensive bone repair material that stably exhibits high antibacterial activity for a long time in a living body by supporting a large amount of an iodine ion and is excellent in apatite forming ability and preservability. The material includes a substrate made of titanium or titanium alloy and a titanate film on a surface of the substrate, the film composed of a large number of crystalline masses having a crystal structure and containing a calcium ion and an iodine ion, wherein the mass contains layers having a Ti—O skeleton and the calcium and the iodine ions adsorbed between the layers.
ANTI-HEMORRHAGING COMPOSITIONS
Composite materials made of a citrate, a calcium carbonate-containing material and an association moiety which is associated with the citrate and the calcium carbonate-containing material are provided. The composite materials are typically particulate materials (e.g., powdery materials). Compositions and articles-of-manufacturing containing and/or configured for applying the composite materials are also provided, as well as their use in inducing blood coagulation and arresting hemorrhage, including internal and/or massive hemorrhage.
THREE-DIMENSIONAL PRINTED CALCIUM PHOSPHATE BONE CEMENT COMPOSITE SCAFFOLDS FOR BONE REGENERATION, PRECURSOR COMPOSITIONS, AND METHODS OF PRINTING
Disclosed are 3D-printed scaffolds having high bone cement content, and in particular, high hydroxyapatite (HA) content. The disclosed methods and compositions provide the ability to print biocompatible scaffolds having patient-specific geometries with controlled porosity, microstructure, osteoconductivity, and mechanical strength. The scaffolds may be used for in vitro and in vivo craniofacial and dental applications.
Methods of Using Water-Soluble Inorganic Compounds for Implants
A method for controlling generation of biologically desirable voids in a composition placed in proximity to bone or other tissue in a patient by selecting at least one water-soluble inorganic material having a desired particle size and solubility, and mixing the water-soluble inorganic material with at least one poorly-water-soluble or biodegradable matrix material. The matrix material, after it is mixed with the water-soluble inorganic material, is placed into the patient in proximity to tissue so that the water-soluble inorganic material dissolves at a predetermined rate to generate biologically desirable voids in the matrix material into which bone or other tissue can then grow.
DYNAMIC BIOACTIVE BONE GRAFT MATERIAL HAVING AN ENGINEERED POROSITY
The present disclosure relates to a dynamic bioactive bone graft material having an engineered porosity. In one embodiment, a bone graft material is provided having bioactive glass fibers arranged in a porous matrix that is moldable into a desired shape for implantation. The material can be substantially without additives and can include at least one nanofiber. The porous matrix may include a combination of one or more pore sizes including nanopores, macropores, mesopores, and micropores. In another embodiment, a bone graft implant is provided having a matrix comprising a plurality of overlapping and interlocking bioactive glass fibers, and having a distributed porosity based on a range of pores provided in the bioactive glass fibers. The distributed porosity can comprise a combination of macropores, mesopores, and micropores, and the matrix can be formable into a desired shape for implantation into a patient.
METHOD FOR PRODUCING HYDROXYAPATITE-BIOGLASS MATERIALS, SAID MATERIALS AND PRODUCTS THEREOF
The present invention relates to a method for producing hydroxyapatite-bioglass macroporous material, to said materials, and to medical devices thereof.
The method comprises a step of preparation of an aqueous suspension of hydroxyapatite and bioglass with a porogenic agent, and subsequent sintering to achieve a macroporous biomaterial.
The macroporous structure of these materials enhances blood vessels and bone cells migration, allowing bone growth through the interior of the bone substitute, thereby increasing the rate of formation of new bone at the site of implantation. Therefore, these materials are advantageously used to produce medical devices, such as bone grafts that resemble the mineral phase of natural bone showing improved mechanical strength and osteoconductivity.
The biomaterials of the present invention are applicable in the medical area, in particular in bone regeneration and reparation techniques as bone grafts.
STRUCTURAL IMPLANT FOR BONE REPAIR
Disclosed are composite materials comprising a porous, carbonated, calcium silicate ceramic having a microstructure comprising interconnected open pores; where the calcium silicate surface defining the pores is partially or completely coated with an amorphous silica layer, and the silica coating comprises an overlayer of calcium carbonate crystals; where the silica coating and calcium carbonate overlayer form a network that interconnects throughout the ceramic microstructure, but do not completely occlude the pores. Also disclosed are methods of forming such composite materials.
BIOCOMPATIBLE MOLDED PART
The invention relates to a biocompatible molded part for supporting new bone formation, in particular the reformation of a jaw bone or a jaw bone portion in a mammal, preferably a human, wherein the molded part is suitable to be placed on the jaw bone and is designed as a solid body. The invention also relates to a composition for producing a biocompatible molded part, a method for producing a biocompatible molded part, a use of a biocompatible molded part and a kit comprising a plurality of molded parts.
Ceramic bodies having antimicrobial properties and methods of making the same
A method for making a ceramic body comprised of a ceramic material having an inhibitory effect on bacterial growth is provided. A dental prosthesis may be made of a ceramic material that comprises a molybdenum-containing component on a portion of the prosthesis that contacts the gingival surface of a patient. In one method, a porous zirconia ceramic structure is shaped in the form of a dental prosthesis, and then infiltrated with a molybdenum-containing composition, before sintering to densify the ceramic structure.
Three-dimensional printed hydroxyapatite composite scaffolds for bone regeneration, precursor compositions and methods of printing
A three-dimensional, biocompatible scaffold precursor composition for room-temperature printing a bio-compatible polymer/hydroxyapatite composite scaffold includes a room-temperature slurry, comprising a mixture of a sold phase that includes a mixture of tetracalcium phosphate (TTCP; Ca.sub.4(PO.sub.4).sub.2O) and dicalcium phosphate anhydrous (DCPA; CaHPO.sub.4), and a liquid phase that includes a polymer in a solvent. The solvent may be Ethanol (EtOH) or Tetrahydrofuran (THF), and the polymer may be polyvinyl butyral (PVB), polycaprolactone (PCL), or poly lactic-co-glycolic acid (PLGA). The slurry is printed at room temperature in aqueous phosphate (NaH.sub.2PO.sub.4) bath, which works as hardening accelerator, forming the polymer/hydroxyapatite composite scaffold.