Construction of a simple multi-lead electrode for intraoperative nerve recording. Technical note

In the operating room, a fast and accurate means of recording nerve action potentials (NAP's) is always desirable. The multi-lead recording electrode described in this paper contains these desirable features. It can survey and obtain a number of NAP's from different nerve segments at the same time and under the same recording condition. The fixed distances between the recording leads enable quick calculation of conduction velocities of different nerve segments. Construction of the electrode is simple, and it can be designed to suit individual needs. The cost is marginal, reflecting primarily the costs of the original subdermal needle electrodes. The device is both safe and disposable.