CHARGE BALANCED

Unlike DC stimulators, the “charge-balanced” biphasic waveform used by Checkpoint Nerve Stimulators does not allow the build-up of potential harmful charge during stimulation. By contrast, direct current stimulators deliver charge for as long as the stimulator is in contact with tissue.

VISIBLE ‘TETANIC’ RESPONSE

Checkpoint devices deliver the biphasic waveform 16 times per second (16Hz) to elicit a highly visible “tetanic” (fused) muscle contraction. This is in contrast to DC stimulators, which elicit a single “twitch” response, making confirmation more difficult.