A puncture needle body having an opening at the distal end and having at least a distal end portion formed in a hollow shape to be inserted into the subject, and provided in the hollow portion of the puncture needle main body along the length direction of the puncture needle main body. An optical fiber and a photoacoustic wave generator that is provided at a light emitting end of the optical fiber disposed on the distal end side of the puncture needle body and absorbs light emitted from the light emitting end to generate a photoacoustic wave. A resin member provided at the light emitting end of the optical fiber is formed in a shape having a curvature.先端に開口を有し、少なくとも先端部分が被検体内に挿入される中空状に形成された穿刺針本体と、穿刺針本体の中空部に、穿刺針本体の長さ方向に沿って設けられた光ファイバと、穿刺針本体の先端側に配置される光ファイバの光出射端に設けられ、その光出射端から出射される光を吸収して光音響波を発生する光音響波発生部とを備え、光ファイバの光出射端に設けられた樹脂部材が、曲率を有する形状で形成されている。
