Being the porous particle which consists of the apatite/collagen mixture which was compressed, production method of the expansible porous particle which consists of the apatite/collagen mixture which expands with the water absorption which features that it freezes the porous particle which consists of the apatite/collagen mixture which impregnation it could point the expansible porous particle, and the liquid which feature that it expands with water absorption, when the compressed strain is added, dries.圧縮されたアパタイト/コラーゲン複合体からなる多孔体であって、吸水により膨張することを特徴とする膨張性多孔体、及び液体を含浸させたアパタイト/コラーゲン複合体からなる多孔体を、圧縮歪を加えた状態で凍結し、乾燥することを特徴とする吸水により膨張するアパタイト/コラーゲン複合体からなる膨張性多孔体の製造方法。
