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

Claim 15:
16. An orthodontic appliance as claimed in claim 15, and wherein the second, intermediate tube is defined by an elongated main body which is defined by the opposite first and second ends, and further has an outside, and inside facing surface; and wherein the elongated main body of the second intermediate tube is coaxially aligned relative to the longitudinal axis of the outer cylindrically shaped tube, and further has a length dimension which is less than about the length dimension of the first intermediate tube, and wherein the elongated main body of the second, intermediate tube has an outside diametral dimension, as measured at the first end of the elongated main body thereof, and which is less than the inside diametral dimension of the internal cavity as measured at the first end of the first, intermediate tube, and further the elongated main body of the second intermediate tube has an outside diametral dimension, as measured at the second end of the elongated main body of the second, intermediate tube, and which is less than the inside diametral dimension of the internal cavity of the first intermediate tube, as measured at the second end of the first, intermediate tube, and wherein the inside facing surface of the second, intermediate tube defines the internal cavity which extends between the first and second ends thereof, and which further has an inside diametral dimension when measured at the first end, and which is greater than when measured at the second end, and wherein the second, intermediate tube is telescopingly, and reciprocally moveable along the given coaxially path of travel relative to both the outer, cylindrically shaped tube, and the first, intermediate tube.