Patent classifications
A61L27/42
Ceramic Part Having At Least One Ceramic Foam for Medical Applications
The invention relates to the use of ceramic parts that at least partly consist of a ceramic foam in the field of medical technology.
Method for producing calcium phosphate molded article, calcium phosphate molded article, and material for transplantation
Provided are a method for rapidly producing a calcium phosphate molded article having high strength with high shaping precision, a calcium phosphate molded article produced by the method, and a material for transplantation. Disclosed is a method for producing a calcium phosphate molded article, the method including: step (a) of forming a layer containing a calcium phosphate powder having a ratio of the numbers of atoms of Ca/P of 1.4 to 1.8 on a substrate; and step (b) of producing a calcium phosphate molded article by jetting an organic acid solution having a pH of 3.5 or lower and including an organic acid whose calcium salt has a solubility in water of 1 g/100 mL or less, through a nozzle unit into a liquid droplet state, thereby dropping the organic acid solution onto the layer containing a calcium phosphate powder formed in step (a).
Bone void filler preparation system
A method of recovering progenitor cells from bone marrow aspirate. A bone void filler preparation container is provided. The bone void filler preparation container has an inlet port and an outlet port. A bone graft matrix having a particle size of between about 1,000 m and about 2,000 m is placed in the bone void filler preparation container. A bone marrow aspirate is passed through the bone void filler preparation container. Progenitor cells in the bone marrow aspirate are retained in the bone void filler preparation container. Greater than about 83 percent of the progenitor cells in the bone marrow aspirate are retained in the bone void filler preparation container.
FABRICATING A CARBON NANOFIBER YARN NERVE SCAFFOLD
A carbo nanofiber nerve scaffold includes a cylindrical helix, a bundle of aligned carbon nanofiber yarns, and a carbon nanofiber sheet. The cylindrical helix includes a surgical suture material, and the cylindrical helix defines an interior of the carbon nanofiber nerve scaffold. The bundle of aligned carbon nanofiber yarns is disposed within the interior of the cylindrical helix. The carbon nanofiber sheet is disposed around the cylindrical helix on a side of the cylindrical helix opposite of the interior.
Iron-based biodegradable metals for implantable medical devices
Iron-based biodegradable metals and the method of fabricating are disclosed. The iron-based biodegradable metals, which have an accelerated degradation rate and a yield strength similar to stainless steel, comprises a composite structure of multiple iron layers separated by thin alloying metallic layers. The composite structure are built layer by layer using additive manufacturing technologies. The iron-based biodegradable metals can be fabricated into a small diameter tube for laser cutting into implantable bare metal stents or drug eluting stents with biodegradable polymer coating. The iron-based biodegradable metals can be fabricated and/or machined into orthopedic implants.
Metal matrix composite orthopedic replacements
Orthopedic replacements include are formed at least partially of composite materials including a metal matrix with reinforcing carbon fiber integrated into the matrix. The composite materials have substantially lower density than metal, and are expected to have appreciable strength. The orthopedic replacements can include a bone attachment portion and a load bearing portion. In some versions, the orthopedic replacements can include a core formed of the composite material, with a shape completion portion, formed for example from plastic, at least partially coating the core.
Dynamic bioactive nanofiber scaffolding
A resorbable bone graft scaffold material, including a plurality of overlapping and interlocking fibers defining a scaffold structure, plurality of pores distributed throughout the scaffold, and a plurality of glass microspheres distributed throughout the pores. The fibers are characterized by fiber diameters ranging from about 5 nanometers to about 100 micrometers, and the fibers are a bioactive, resorbable material. The fibers generally contribute about 20 to about 40 weight percent of the scaffold material, with the microspheres contributing the balance.
Bone graft system
The present invention relates generally to the field of bone graft substitutes and methods for making the same, particularly the invention relates to bone graft substitutes for use in dental or orthopaedic implants. The bone graft substitutes described herein comprise a silicate based material. The silicate based material is a silicate network with a porous structure. The silicate network has one or more metal cations incorporated therein. Preferably a phosphate is also incorporated into the silicate network. The bone graft substitute may have a low density, preferably a density of less than 1.1 g/cm.sup.3. The bone graft substitute may be an aerogel or a cryogel.
THERMOPLASTIC MATERIALS INCORPORATING BIOACTIVE INORGANIC ADDITIVES
Composite materials comprising thermoplastic polymeric material such as polyaryletherketones (PAEKs) and inorganic additive species serving to increase the processing and resultant mechanical, thermal, and biological properties of said thermoplastic polymeric material which may be subsequently used in various medical applications after the two materials are mixed through thermal processing methods. The inorganic additive species may be a calcium salt, and may include fluorine ions.
CURABLE CALCIUM PHOSPHATE COMPOSITIONS FOR USE WITH POROUS STRUCTURES AND METHODS OF USING THE SAME
Various embodiments disclosed relate to curable calcium phosphate compositions for use with porous structures and methods of using the same. In various embodiments, the present invention provides a curable calcium phosphate composition or a cured product thereof, with the curable calcium phosphate composition including calcium phosphate and a perfusion modifier. In various embodiments, the present invention provides an apparatus comprising a porous structure at least partially in contact with the curable calcium phosphate composition or a cured product thereof. The porous structure can include a porous substrate including a plurality of ligaments that define pores of the porous substrate, and a biocompatible metal coating on the plurality of ligaments of the porous substrate.