U Shape Toothbrush

Abstract

The U Shape Toothbrush is for the daily use of cleaning teeth. Its toothbrush head is in U shape. Inside the U shape toothbrush head, brushes extend inward from 3 directions facing the top, front and back of teeth. During tooth brushing, it cleans the top, front and back of teeth at same time in every stroke, which makes it very efficient. It also minimizes the hard to reach areas on the back of teeth for the ordinary toothbrush, which makes it more effective on cleaning the back of teeth. Part of the toothbrush head is made of elastic material to allow the toothbrush head deforming to fit with teeth of different sizes. 4 humps are designed inside the U shape toothbrush head to control the deformation. A toothbrush handle is designed that it can rotate with respect to the U shape toothbrush head for convenient use.

1 . A U Shape Toothbrush comprising:
 a U shape toothbrush head and a toothbrush handle   the toothbrush handle can directly extend from the U shape toothbrush head or the toothbrush handle can be assembled onto the U shape toothbrush head through a toothbrush handle mounting shaft which allows the toothbrush handle to rotate with respect to the U shape toothbrush head   
     
     
         2 . The U Shape Toothbrush of  claim 1 , wherein said has a U shape toothbrush head and brushes extending inward from 3 directions facing the top, front and back of teeth, when it is used during tooth brushing, it cleans the top, front and back of teeth at same time in every brushing stroke. Brushes can also extend out from the U shape toothbrush head toward the gums of both front and back of teeth. During every brushing stroke, the brushes can massage the gums of the teeth. 
     
     
         3 . The U Shape Toothbrush of  claim 1 , wherein said the U shape toothbrush head or part of the U shape toothbrush head is made from elastic materials so that they can deform to fit the size of different teeth. 
     
     
         4 . The U Shape Toothbrush of  claim 1 , wherein said on the inner surface of the U shape toothbrush head, humps are designed to control the deformation of the U shape toothbrush head to fit the size of different teeth and keep the brushes touch the teeth at similar pressure whether it cleans small teeth or large teeth. 
     
     
         5 . The U Shape Toothbrush of  claim 1 , wherein said the toothbrush handle is assembled onto the U shape toothbrush head through a toothbrush handle mounting shaft. After the toothbrush handle is assembled and retained onto the U shape toothbrush head, the toothbrush handle can rotate with respect to the U shape toothbrush head for convenient use.