2 các kết quả
BACKGROUND
Devices and methods using energy to stimulate nerves in the body is well known. Such methods and devices are discussed in U.S. Pat. No. 4,712,558, titled ELECTRICAL STIMULATION OF MUSCLE, issued Dec. 15, 1987; U.S. Pat. No. 4,957,480, titled METHOD OF FACIAL TONING, issued Sep. 18, 1990;
BACKGROUND
Devices and methods using energy to stimulate nerves in the body is well known. Such methods and devices are discussed in U.S. Patent No. 4,712,558, titled ELECTRICAL STIMULATION OF MUSCLE, issued Dec. 15, 1987; U.S. Pat. No. 4,957,480, titled METHOD OF FACIAL TONING, issued Sep. 18,