Patent ID: 6719557
Filing Date: 2004-04-13
Classification: A61C

Abstract:
A contracting connector for connection between a maxillary appliance and a mandibular appliance for the treatment of an underbite in a subject in need of such treatment, comprising:a tubular body having an inner bore therein, said tubular body having an maxillary appliance attachment at a posterior end thereof; the tubular body being a telescoping tubular body comprising an externally threaded posterior tube section and an internally threaded anterior tube section threadedly engaged on said posterior tube section; a rod slidingly engaged in the bore of the body, said rod having a mandibular appliance attachment at an anterior end thereof; a spring connected to the rod and extending through the bore, said spring connected to the posterior end of the tubular body whereby the spring causes contraction pressure on the rod and the mandibular appliance; whereby rotation of the tubular body outer tube section in a first direction lengthens the tubular body to increase the contraction pressure of the spring and rotation of the tubular body outer tube in an opposite direction shortens the tubular to decrease contraction pressure of the spring.