Patent ID: 8820531

Claim:
A pad tray system for accommodating an electrode pad that has a conductive gel and a holding face for holding the conductive gel so as to be contactable with an externally provided electrode and includes a base member that is provided so as to be attachable to and detachable from the electrode, the pad tray system comprising: a base portion; and a recessed region that is formed in a front side of the base portion and is for accommodating the electrode pad, the recessed region having: a bottom region; and a sidewall region that extends up from the bottom region and is provided so as to surround the electrode pad, and the recessed region further having: a supporting region that projects inwardly toward a center of the pad tray from the sidewall region, and biases the electrode pad toward the bottom region in a state where the electrode pad is accommodated in the recessed region.