美国FDA称ICU医疗召回IV Gravity滴定管套件，因为滴定管组件缺失旨在阻止液体流动的内部截止阀

https://www.fda.gov/medical-devices/medical-device-recalls-and-early-alerts/intravascular-administration-set-recall-icu-medical-removes-iv-gravity-burette-set