Magnesium-calcium Silicate Bone Cement, Matrix Powder thereof and Producing Method Thereof

摘要

The present invention provides a producing method for a degradable magnesium-calcium silicate bone cement. The invention solves the problems that the setting time is too long to cause bad mechanical property in conventional bone cements and also remains bioactivities and degradation ability. The invention has no cytotoxicity and enables to stimulate cells growth.

主权项

1. A producing method of a degradable magnesium-calcium silicate bone cement having steps of:
hydrolyzing a tetraethyl orthosilicate with a nitric acid; mixing with a calcium nitrate and a magnesium nitrate; reacting with an alcohol to obtain a mixture liquid; drying the mixture liquid by a heating means; sintering and graining the mixture liquid to obtain a magnesium-calcium silicate bone cement powder; and blending a secondary water or a phosphate solution with the magnesium-calcium silicate bone cement powder uniformly to form the degradable magnesium-calcium silicate bone cement.