Patent ID: 11862786
Assignee: SOOCHOW UNIVERSITY
Field: Medical technology (Instruments)
Classification: CPC A  H  Y | IPC A  H

Claim 4:
5. A method of preparing a bone defect filler, comprising steps of:
(1) covering a three-dimensional porous graphene foam support with a filter paper, and performing mineralization processing, to obtain a mineralized three-dimensional porous graphene material;
(2) immersing the mineralized three-dimensional porous graphene foam material in a solution to freeze the mineralized three-dimensional porous graphene material;
(3) cutting the frozen mineralized three-dimensional porous graphene foam material into mineralized three-dimensional porous graphene sheets; and
(4) immersing the mineralized three-dimensional porous graphene sheets in ethanol, and drying and sterilizing the three-dimensional porous graphene sheets in order to obtain the bone defect filler.