As already said, stimulating only one energy point by a fine needle or fingertip is sufficient in Acupuncture treatment. To be accurate, the real acupuncture is, stimulating only by using the fingertip, as metal needles were not discovered in the earliest days of Acupuncture.
When, Acupuncture system spread to other countries from China, it was transformed according to the condition and requirement of those regions. Countries like America and Britain completely commercialized Acupuncture according to their needs. Patients became customers to make business. The result – Electrical Stimulators, Computer Meridian Diagnosis, Supplementary foods viz. Medicines, Blood Circulative Massagers, etc., came into market. Acupuncture has nothing to do with these equipments.