PROBLEM TO BE SOLVED: To provide a test body information detection unit which is superior in detection sensitivity of a pulsatile signal of a test body while preventing the stop of the signal from a sensor when being put on the test body.SOLUTION: The test body information detection unit includes: a sensor attachment part 21 which has an opening 22 in a portion to be brought into contact with a test body 91 and has therein a cavity 23 communicating with the opening 22 and forms a space structure in which the cavity 23 is closed in a state where the sensor attachment part 21 is mounted on the test body 91 with the opening 22 facing the test body 91 a sensor 31 which is provided on the sensor attachment part 21 and receives pressure information generated from a pulsatile signal of a blood vessel 92 in the test body 91 to detect the pulsatile signal of the blood vessel 92 and a film-like member 11 which isolates the opening 22 and the sensor 31 from each other and prevents penetration of moisture. The sensor 31 detects the pressure information which is generated from the pulsatile signal of the blood vessel 92 in the test body 91 and is inputted via the opening 22 and propagates in the cavity 23 and the film-like member 11.COPYRIGHT: (C)2015,JPO&INPIT【課題】検体に装着した際のセンサからの信号停止を防止しながらも、検体の脈動性信号の検出感度に優れた検体情報検出ユニットを提供する。【解決手段】検体91に当接する部位に開口部22を有するとともに、開口部22と連通する空洞23を内部に有し、開口部22を検体91に対向させて検体91に装着された状態で空洞23が閉鎖された空間構造を形成するセンサ取付部21と、センサ取付部21に設けられ、検体91における血管92の脈動性信号に起因する圧力情報を受けて血管92の脈動性信号を検出するセンサ31と、開口部22とセンサ31とを隔てるとともに水分の透過を防止する膜状部材11とを備える検体情報検出ユニット1において、センサ31が、検体91における血管92の脈動性信号に起因し、開口部22を通じ入力され、空洞23、及び膜状部材11を伝播する圧力情報を検出することを特徴とする、検体情報検出ユニット。【選択図】図1