| 摘要 |
<p>The exercise device (10) of the present invention includes a guard strip (14) for passing over the front and sides of the upper and lower teeth. A grip piece (16), preferably comprising a pair of tabs (50, 52), extends from an inside of the guard strip (14). An elastic member (12) anchored in a first corner of the mouth passes along a first side of the teeth towards the back of the mouth, passes through an opening (40) in a distal end (46) of the mouth guard, crosses the back of the mouth, and passes through another opening (44) in the distal end (48) of the guard strip (14) on the other side of the mouth and then extends toward the front of the mouth for being anchored in the other corner of the mouth. Accordingly, when the shape of the mouth is moved between an 'O' shape and a smile shape, the elastic member (12) changes the degree of tension, thereby exercising the muscles in the face, chin and neck.</p> |
