The production device of H2 15O and the injection production device of H 215 O and the automatic injection device null of H 215

摘要

PURPOSE:To obtain a safe and efficient automatic injector and device for producing injected liquid in the case where short half-life H215O gas is used as the injected liquid. CONSTITUTION:The injection liquid manufacture device 5 has a collection bottle 51 fitted with a physiological salt solution for blowing into bubble H215O gas just after H215O gas is produced in a target box and an RI detector 56 for detecting H215O gas contained in the physiological salt solution in the collection bottle 51 are equipped. The automatic injector 6 has a cylinder 66 for pressure- sending the injection liquid produced in the collection bottle 51 to an injection needle 64, three-way valves 61, 62, 65, which is provided between the collection bottle 51 and the cylinder 66 and between the cylinder 66 and the injection needle 64, for changing the flow direction of the injection liquid, a bubble detector 68a provided between the three-way valve 62 and the injection needle 64, another bubble detector 68 provided between the collection bottle 51 and the three-way valve 61 and a micropore filter 63 are equipped.