Telescopic self-locking rod integrated module for e.g. activation of advance mandibular orthosis in propulsion mode, has rod coupled with points to provide rigid incompressible and inextensible assembly

摘要

The module has a threaded half-rod (12) screwed in a partially screwed half-rod (13), so that the half-rods form a self-locking telescopic rod. The half-rods are tighten or loosen after uncoupling of the telescopic rod from tooth anchorage points, for accurate change of the length of the telescopic rod and for obtaining optimum adjustment of the telescopic rod. The telescopic rod is again coupled with the points to provide a rigid incompressible and inextensible assembly, where change of length of the assembly is impossible.