4×1 HD-tDCS / HD-tES Adaptor

The 4×1 HD-tES adaptor interface is an accessory to an isolated 2-channel tDCS / tES stimulator and does not function as a stand-alone electrical stimulator or generator. The 4×1 HD-tES adaptor device is designed to be used as an interface device between an isolated 2-channel Soterix Medical current controlled tES stimulator and 5 stimulation leads; where 4 leads are connected to one output of the tES stimulator and the remaining lead is connected to the other output of the tES stimulator. The output leads connect to smaller high-definition (HD) electrodes, instead of the larger sponge electrodes used in conventional 2-channel tES. The device operates in two modes: SCAN and PASS mode. In PASS MODE, the 4×1 HD-tES adaptor does not modulate the waveform of the tES stimulator, and acts only as a passive current divider. In SCAN mode, the device uses exclusive HD electrode impedance mapping technology to ensure proper set-up prior to stimulation.