Methods and systems for controlling inventory in a medical facility include providing a medical device into a medical treatment area within a wireless range of a medical facility network and automatically identifying the medical device upon introduction into the medical treatment area. The base plate has an extension with a recessed notch, a first tapered portion, and a second tapered portion opposite the first tapered portion with respect to the recessed notch, and the button has an extension and a notch corresponding to the extension and the recessed notch of the base plate. The flexible membrane obstructs inhaled air flow into a lung portion communicating with the air passageway.