PROBLEM TO BE SOLVED: To provide a method enabling easy production of a sheet-like compressed fiber structural material including mechanical characteristics close to an in vivo bone and characteristics of easily increasing osteoblasts even when there is variation in strength in a region that is a treatment target.SOLUTION: This method for producing the compressed fiber structural material 1 includes steps of: preparing biocompatible fiber 14 having an average diameter of 5-50 μm and an aspect ratio of 20-500 and performing normal-temperature compression shearing of the biocompatible fiber 14 to form the compressed fiber structural material 1 wherein an average pore diameter obtained by the measurement in a mercury press-in method is 60 μm or above and 100 μm or below, and wherein a porosity is present in a range of 25% or above and 50% or below. Furthermore, preferably, the normal-temperature compression shearing is performed by controlling a compression pressure in a range of 200-2,000 MPa, a shear stroke length in a range of 0.2-5 mm, and a shear velocity in a range of 0.5-5 mm/minute.COPYRIGHT: (C)2013,JPO&INPIT【課題】治療対象となる部位で強度に差がある場合であっても、生体骨に近い機械的特性と骨芽細胞を増加させ易い特性を持つ薄板状の圧縮繊維構造材を容易に製造できる方法を提供することにある。【解決手段】平均径が5~50μmでアスペクト比が20~500の生体親和性繊維14を準備する工程と、その生体親和性繊維14を常温圧縮せん断加工して、水銀圧入法での測定により得られた平均空孔径が60μm以上100μm以下で空隙率が25%以上50%以下の範囲となる圧縮繊維構造材1を成形する工程とを有する圧縮繊維構造材1の製造方法により、上記課題を解決する。さらに、常温圧縮せん断加工は、200~2000MPaの範囲の圧縮圧力と、0.2~5mmの範囲のせん断ストローク長と、0.5~5mm/分の範囲のせん断速度とを制御して行うことが好ましい。【選択図】図1
