Electroencephalography is the neurophysiologic measurement of the electrical activity of the brain by recording from electrodes placed on the scalp or, in special cases, subdurally or in the cerebral cortex. It can be used for in-lab recordings when connected to the host PC, including optional photic stimulation, pulse oximetry and additional DC channels.

Closed bag is used for patients who have undergone a colostomy. The bag is closed off at the bottom and needs to remove to be emptied. It is designed to use once. It can be used as either a one piece, where the adhesive is permanently attached to the bag or a two-piece, where the adhesive and the bag are attached either by a lock ring.