Extraordinary Vessel (Ion Pumping Cord) treatments are generally but not always used with the Eight extraordinary vessels. The diagnosis is made primarily from presenting signs in the patients pulse and abdomen as well as reactivity in secondary points. This kind of technique is considered a Japanese Acupuncture specialisation and as such requires further training.
Dr. Yoshio Manaka, famed Japanese acupuncturist and theorist, has well developed theories on the role of the extraordinary vessels within the human body and these treatments have been used with great clinical success to treat a wide range of conditions.
The Ion Pumping Cords used within these treatments were originally developed to treat burns but were found to be useful in accessing the extraordinary vessels to treat other conditions as well. Ion pumping treatments are a form of polarity medicine.