PROBLEM TO BE SOLVED: To provide a photoacoustic image generation device that suppresses the light emission of a light source without preventing puncture work.SOLUTION: A puncture needle 15 comprises an outer needle and an inner needle, and the inner needle comprises a light emission part and a photoacoustic wave generating part. Insertion/withdrawal detection means 30 detects that the inner needle of the puncture needle 15 has been withdrawn from the outer needle. Light source control means 33 suppresses the light emission of a laser unit 13 when it is detected that the inner needle has been withdrawn.SELECTED DRAWING: Figure 1【課題】光音響画像生成装置において、穿刺作業を阻害せずに光源の発光を抑制する。【解決手段】穿刺針１５は、外針と内針とを含み、内針は、光出射部と光音響波発生部とを含む。挿抜検出手段３０は、穿刺針１５の内針が外針から抜かれたことを検出する。光源制御手段３３は、内針が抜かれたことが検出されると、レーザユニット１３の発光を抑制する。【選択図】図１
