To provide a suction needle device that can descend a needle to a suitable position of a liquid container by eliminating positional deviation between the needle and the liquid container.SOLUTION: The suction needle device is structured to penetrate a needle body into the lid body of a liquid container in which a radioactive liquid is sealed. This suction needle device includes: a placing base 12 which houses a liquid container 7 having a radioactive liquid sealed in and which has a protection container 5 placed that protects leakage of radioactive rays from the liquid； a guide plate 22 which is a needle body moving part for making vertical movement of the needle body 9 above the placing base 12； a sliding part 23； a frame body 24； and a guide part 16 with a handle 25. The suction needle device is structured so that, in the placing base 12, a slope 121 having the protection container 5 placed thereon is provided with an engaging part 14 containing a recessed part 13 and a projected part 15 which engage with at least a bottom part 66 of the protection container 5.SELECTED DRAWING: Figure 4【課題】針と液体容器との位置ずれをなくして針を液体容器の好適な位置に下降させることができる針刺装置を提供する。【解決手段】放射性の液体が封入された液体容器の蓋体に針体を穿刺する針刺装置を構成する。この針刺装置では、放射性の液体が封入された液体容器７を収容し液体からの放射線の漏洩を遮蔽する遮蔽容器５が載置される載置台１２と、載置台１２の上方で針体９を上下動させるための針体移動部であるガイド板２２、摺動部２３、枠体２４、ガイド部１６及びハンドル２５と、を備え、載置台１２において遮蔽容器５が載置される斜面１２１が、遮蔽容器５の少なくとも底部６６と係り合う凹部１３及び凸部１５を含む係合部１４を有するように針刺装置を構成する。【選択図】図４
