TENS stands for Transcutaneous Electrical Nerve Stimulation. The TRi-WAVE TENS system is used to provide symptomatic pain relief for chronic, acute or post-operative pain.EMS stands for Electrical Neuromuscular Stimulator. The TRi-WAVE EMS system is indicated for:• Relaxation of muscle spasm;• Increasing local blood circulation and muscle re-education;• Prevention or retardation of disuse atrophy;• Prevention of venous thrombosis of the calf muscles immediately after surgery;• Maintaining or increasing range of motion.IF stands for Interferential Stimulation. The TRi-WAVE IF system is indicated for:• Symptomatic relief of chronic intractable pain.
An electrically-powered unit intended to apply various modes of electrical stimulation transcutaneously to treat/prevent neuromuscular symptoms and disorders typically as a form of physical therapy [neuromuscular electrical stimulation (NMES)/electronic muscle stimulation (EMS)]; it may in addition be intended for transcutaneous electrical nerve stimulation (TENS) to treat pain, and/or electroacupuncture. It includes an electric current pulse generator and noninvasive electrodes; it is not intended for tremor suppression. Clinical applications typically include relaxation/re-education of muscles, prevention of muscle atrophy, and improvement of blood circulation.