US Patent 7140373 Electric oral cleaning device

In one embodiment of the present invention, an electric oral cleaning device is provided and includes a handle and a power supply contained therein. The device has a motor that drives a motor linkage, which includes a push rod that has one end that engages and moves a dental cleaning head about a center pin to cause an oscillation motion of the head. The entire head assembly is also interchangeable such that a flossing tool and various brushing tools may be utilized by the same device. In one aspect of the invention, the flossing tool includes a piece of slacked flossing material held between two arms defined by the flossing tool.