Acupressure mat - Wikipedia
▻https://en.wikipedia.org/wiki/Acupressure_mat
Zilberter found the person who created the first acupressure mat was Ivan Kuznetsov, a Russian music teacher who suffered from chronic pain. He had a severely impaired peripheral circulation and muscle spasm to the point that he could not move his limbs. Acupuncture was the only treatment that made him feel better, but the cost per session was too expensive for him, and only a few clinics in the country offer free acupuncture. He tried to learn how to perform acupuncture on himself, but he failed because he could not reach all the acupressure points on his back.
Kuznetsov then decided to pierce a sheet of tire rubber with thousands of office pins ¼ inch apart and lay on it to reach the acupressure points of his back. His idea worked and called his invention “Iplikator” and filed a patent in 1979. Since his invention, thousands of clinics in Russia tested the Iplikator and it was featured in a science magazine called Invention and Rationalization in 1981. The Department of Public Health in Russia approved the manufacturing and sale of the device with no trials