A PIB-pressure infusor bag from Merit Medical is a useful device with a blunted hook, which prevents fluid bag punctures in the event pressure is lost. The design's rigid hanger is easy to drape upon IV poles. Achieving deflation and pressurization with this device only requires one hand. Switching easily between normal and over-pressure mode, the device uses a button to control the dual-pressure safety value. It comes in a variety of sizes: 500 ml, 1,000 ml and 3,000 ml. This device is unfortunately not MRI compatible but does have a variety of other uses.