PROBLEM TO BE SOLVED: To allow measurement of a tissue region whose measurement is difficult by a conventional hand-held type probe.SOLUTION: A hand-held type probe 11 includes: a head part 11b storing an acoustic wave detection part 20 and light guide plates 44, and having a measurement face S provided with a detection face S1 of the acoustic wave detection part 20 and emission faces S2 of the light guide plates 44 emitting measurement light L toward an object alongside and a grip part 11a having one end connected to the head part 11b, and having a prescribed length. The measurement face S is directed laterally to a long direction D of the grip part 11a.COPYRIGHT: (C)2015,JPO&INPIT【課題】従来のハンドヘルド型プローブでは計測が難しい組織領域の計測を可能にする。【解決手段】ハンドヘルド型プローブ11において、音響波検出部20と導光板44とを収容するヘッド部11bであって、音響波検出部20の検出面S1と被検体に向けて測定光Lを出射させる導光板44の出射面S2とが並設されてなる計測面Sを有するヘッド部11bと、ヘッド部11bに一端が接続された把持部11aであって所定の長さを有する把持部11aとを備え、計測面Sを把持部11aの長さ方向Dに対して横に向ける。【選択図】図1
