Abstract: Disclosed herein is a packing container functioning as a mixing tray for powder type or granule type bone filler. The bone filler packing container of the present invention includes an inner casing, which has an opening, through which the bone filler is supplied into the inner casing, and contains the bone filler therein. The packing container further includes an outer casing, which surrounds the inner casing and has a lower bottom part that is configured such that the container may sit upright, and a sealing part, to which a paper seal for sealing the opening of the inner casing is adhered. In the present invention, after the packing container is opened, a surgeon can immediately use the packing container as a mixing tray, inside which blood or marrow that is extracted from a patient is mixed with bone filler that is located in the packing container, before applying the bone filler mixed with blood or marrow to an affected portion of a patient.

Abstract: An expandable interfusion cage comprising a cage body and a spacer. The cage body includes a seat part which is pierced by an orifice and a branch part which defines therein an inside space and has a plurality of elongate branches integrally formed at their proximal ends with the seat part. An opening is defined between two adjoining branches to communicate with the inside space. The spacer is movably assembled in the inside space of the cage body to expand the cage body radially outward. Inward projections are formed at distal ends, respectively, of the branches to project radially inward toward an axis of the cage body. The inside space of the cage body has substantially a circular or polygonal sectional shape. The spacer is engaged with the inward projections of the branches while expanding the cage body.

Abstract: An expandable interfusion cage comprising a cage body and a spacer. The cage body includes a seat part which is pierced by an orifice and a branch part which defines therein an inside space and has a plurality of elongate branches integrally formed at their proximal ends with the seat part. An opening is defined between two adjoining branches to communicate with the inside space. The spacer is movably assembled in the inside space of the cage body to expand the cage body radially outward. Inward projections are formed at distal ends, respectively, of the branches to project radially inward toward an axis of the cage body. The inside space of the cage body has substantially a circular or polygonal sectional shape. The spacer is engaged with the inward projections of the branches while expanding the cage body.

Abstract: An artificial bone promotive of osteoanagenesis comprising a calcium phosphate cement and a linear polyphosphate, wherein the calcium phosphate cement comprises &bgr;-tricalcium phosphate, monocalcium phosphate, calcium sulfate hemihydrate and other additives. The artificial bone is non-toxic to the body chemically stable, and has an excellent biodegradability. The artificial bone may be applied as substitutes for bone cements, allografts and autografts.