초록 ▼

A bone fixation material has an initial bending strength at break of more than 250 MPa, maintains its strength more than 3 months in a living body organism and has the characteristic of biodegrading and bioabsorbing into and disappearing from the organism within a range of 6 months to 3 years. The m

A bone fixation material has an initial bending strength at break of more than 250 MPa, maintains its strength more than 3 months in a living body organism and has the characteristic of biodegrading and bioabsorbing into and disappearing from the organism within a range of 6 months to 3 years. The material comprises a polymer with the characteristic of biodegrading and bioabsorbing into the living body organism, a hydroxyapatite and an alkaline inorganic compound.

대표청구항 ▼

[ What I claim is:] [1.]1. A bone fixation material having an initial bending strength at break of more than 250 MPa, having the property of maintaining its strength for more than 3 months in a living body organism, and having the caacteristic of biodegrading and bioabsorbing into and disappearing f

[ What I claim is:] [1.]1. A bone fixation material having an initial bending strength at break of more than 250 MPa, having the property of maintaining its strength for more than 3 months in a living body organism, and having the caacteristic of biodegrading and bioabsorbing into and disappearing from the organism within a range of 6 months to 3 years, said material comprising a L and/or D lactic acid polymer or copolymer having the characteristic of biodegrading and bioabsorbing into the living body organism, a hydroxy apatite, and an alkaline inorganic compound or basic organic compound capable of raising the pH of the composition to an alkaline state in the presence of water, wherein the composite ratio of the polymer and the hydroxyapatite is in weight ratio range of 99:1 to 60:40 and the ratio of the hydroxyapatite and the alkaline inorganic compound is in a weight percent range of 99.9:0.01 to 80:20.