In the sperm collecting apparatus of the structure supporting the core pieces made of a gel-like resin by casing segment two openable, to reduce the cost by significantly reduces the amount of expensive gel resin. Shaped space formed between the mold 51 having a first securing the respective casing segment in a state of being arranged close to each case member 4 which is arranged an elastic porous member 10 to the inner surface of the mold 51 of the first the mold 60 of the second with a molding surface that accommodates each of the elastic porous member and each case pieces within, respectively opposed to the inner surface of each of the elastic porous member and, each elastic porous member and each case piece and with, the resin passage 70 which is press fitted a gel resin 75 in a molten state while compressive deformation by pressing the respective elastic porous member inner surface in a state of being contained in the molding space.開閉自在な2つのケース片によってゲル状樹脂から成るコア片を支持した構成の精子採取器において、高価なゲル状樹脂の使用量を大幅に減少させてコストダウンを図る。内面に弾性多孔質部材10を配置した各ケース片4を近接配置した状態で該各ケース片を固定する第1の金型51と、第1の金型51との間に形成される成形空間内に各ケース片及び各弾性多孔質部材を収容し、且つ各弾性多孔質部材の内面と夫々対向する成形面を備えた第2の金型60と、各ケース片及び各弾性多孔質部材を成形空間内に収容した状態で各弾性多孔質部材内面を押圧して圧縮変形させつつ溶融状態のゲル状樹脂75を圧入する樹脂流路70と、を備えた。
