The 2Bin system for controlling medical supplies at point-of-use.

•We model the 2Bin system under periodic and continuous review inventory policies.•We test the benefits of parameter optimization, optimizing the periodic review interval, versus policy improvement, changing to a continuous review policy.•Policy improvement outperforms parameter optimization in most instances tested.•We identify especial cases when the benefit of parameter optimization is higher.•We provide insights to hospital management on the efficient use of 2Bin systems.