| 摘要 |
The device has a U-shaped coupling element (30) which comprises lower tooth rail (10) having front connection point (11) in lateral direction running through hole, and upper tooth rail (20) having rear connection points (21,21'). An elongated opening is provided in the posterior region. The bent ends of coupling element are introduced into elongated openings at the rear connection point to form a hinge. The apex of the coupling element is releasable in certain position of tooth rails, by the lateral through hole at the front connection point so that rotary sliding joint is formed. An independent claim is included for method of assembling the device for improving breathing of user. |
