Puncture needle (2), the tip is positioned outer cylinder opening edge of the tip is formed on the cutter shape (11) at a position predetermined distance separated at a distance of the outer tube (11) tip outer tube (11) in I have a (12) receiving member that. And there is formed the sample holding portion (13) between the tip of the receiving member (12) and the outer tube (11) tip. And there is formed the air passage (14) around the receiving member (12) in the outer tube (11). Suction means (21) is connected to the proximal end of the outer tube (11). The sample holding portion (13), (21) is communicatively connected via the air passage (14) suction means.穿刺針(2)は、先端の開口縁が刃物状に形成された外筒(11)と、外筒(11)内で外筒(11)先端から所定寸法だけ離隔した位置に先端が配置される受止部材(12)とを有する。受止部材(12)の先端と外筒(11)先端との間には試料収容部(13)が形成してある。外筒(11)内で受止部材(12)の周囲に通気路(14)が形成してある。外筒(11)の基端側に吸引手段(21)が接続される。吸引手段(21)が試料収容部(13)に、通気路(14)を介して連通連結される。
