BIOACTIVE MICROCELLULAR MATERIAL FOR ORTHOPAEDIC SURGERY AND METHOD FOR MAKING IT Russian patent published in 2012 - IPC A61L27/10 A61L27/12 A61F2/28 

FIELD: medicine.

SUBSTANCE: invention refers to a bioactive microcellular material for orthopaedic surgery, which contains certain proportions of isle-, chain-, ring- and layer-pattern powdered strongly alkaline glass of certain composition, powdered calcium phosphate excipient, hydroxyapatite specified in calcium-deficient hydroxyapatite with the Ca/P ratio = 1.5-1.65 or β-tricalcium phosphate, and a cellulating agent representing starch or gelatine. Besides, the invention refers to a method for making said material applied for the purpose of orthopaedic surgery which involves the stages of material granulation, moulding and heat treatment. At the stage of granulation, glass of dispersity 40-120 mcm is introduced into the powdered material, while the heat treatment is three-staged: at first the material is heated up to 600-750°C and kept for 30-50 minutes, then tempered to 520-550°C and kept for 5-10 minutes and cooled slowly to 450-470°C and kept for 5-10 minutes.

EFFECT: making the materials characterised by adjustable solubility, high hydrophilic properties, biomodal pore structure and high mechanical properties.

2 cl, 4 ex