Flexible collapsible container with liquid level indicating device

摘要

Apparatus for administering medical liquids comprising a combination of a calibrated flexible bag and a liquid level indicating device for increasing the accuracy of measuring the level of liquids within the bag. The liquid level indicating device consists of a pair of spaced-apart elongated rollers which form a slot into which the upper part of the bag can be inserted. The rollers rest on the outside of the bag at about the upper level of liquid within the bag.