Patent ID: 11938244
Assignee: HEJIE LI
Field: Medical technology (Instruments)
Classification: CPC A  B  C | IPC A  B  C

Claim 13:
14. An application of a small-peptide-coated biomaterial, wherein the small-peptide-coated biomaterial is applied in the manufacture of a hard-tissue defect repair material, and the small-peptide-coated biomaterial is manufactured by the following steps:
ultrasonically cleaning a magnesium alloy AZ31 to remove impurities on the surface of the magnesium alloy AZ31; dissolving polyurethane with chloroform, and then placing the cleaned magnesium alloy AZ31 into the chloroform solution dissolved with the polyurethane, so that the magnesium alloy AZ31 is fully enclosed in the solution; taking out the magnesium alloy AZ31, and letting the magnesium alloy AZ31 stand until the solution on the surface thereof is solidified;
and then activating the polyurethane coated on the surface of the magnesium alloy AZ31 by using a click reaction in a plasma reactor; and finally placing the surface-activated polyurethane-coated magnesium alloy AZ31 into a sodium phosphate solution dissolved with polypeptide and applying vibration to allow them fully react to form the corresponding polypeptide coating.