EEG Columnar Electrode

Columnar electrodes (also known as bridge electrodes) are clinically used for routine electroencephalogram recordings. The metal end of the electrode is vertically in contact with the scalp, and the other end is connected to a right-angle bracket to form a bridge structure. The electrode cap with special elastic adhesive tape is fixed on the crossbeam of the bridge. 

F Disk-shaped electrodes are clinically used for 24-hour video electroencephalogram recordings. They are 7mm in diameter disk-shaped electrodes. The middle part of the contact side of the electrode is concave outward and has holes, which are used to inject conductive paste. A small patch can be attached to the other side of the disk-shaped electrode to strengthen the fixation of the electrode and prevent it from falling off.