Patent ID: 11877907
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 18:
19. An orthodontic appliance as claimed in claim 18, and wherein a telescoping assembly is defined by the outer, cylindrically shaped tube; first, intermediate tube; second, intermediate tube; and the inner elongated rod, and wherein the first and second attachment members rotatably support the telescoping assembly in selective, force transmitting relation relative to the archwire couplers which are affixed on the archwires that are placed on the upper and lower dental arches of the patient undergoing orthodontic treatment, and wherein the inner elongated rod; and first and second intermediate tubes are moveable along the coaxial course of travel relative to the outer, cylindrically shaped tube, from the first, extended position, to the second, retracted position, and wherein in the first, extended position the inner elongated rod, and the first and second intermediate tubes are oriented longitudinally, outwardly, relative to each other, and the outer, cylindrically shaped tube, and wherein the telescoping assembly has a maximum length dimension as measured between the second attachment member, and the first end of the outer, cylindrically shaped tube, and wherein the telescoping assembly, when located in the first, extended position, is further oriented in a non-parallel orientation relative to the occlusal plane; and wherein in the second, retracted position, the respective inner elongated rod, and first and second intermediate tubes forming a portion of the telescoping assembly are, internally telescoped together, and further telescopingly received, and enclosed within the internal cavity which is defined by the outer, cylindrically shaped tube, and wherein the telescoping assembly, in the second, retracted position, has a minimum, length dimension as measured between the second attachment member, and the first end of the outer, cylindrically shaped tube, and wherein the telescoping assembly, when located in the second position, is oriented in a parallel position relative to the occlusal plane.