Twister for ligature wire

Details Twister for ligature wire Twister for ligature wire

1998-01-07

1999-09-28

Wilson, John J.

Dentistry

Orthodontics

Tool

433141, 140 936, A61C 300, B21F 902

Patent

active

059576855

ABSTRACT:
A twister for orthodontic ligature wires which easily enable a twisting operation of the wire with one hand, and is capable of clamping the wire with certainty, and simple in construction. The twister for passing the ligature wire in a nipping cylinder and a gripping cylinder to nip the wire, comprises a guide hole provided in the nipping cylinder to enable inserting the wire in a direction along a central axis of the nipping cylinder, an insertion port provided at a tip end of the guide hole, a compartment pin for inhibition of twisting provided on the insertion port, or an engagement piece provided on an extension of the insertion port, and a locking mechanism mounted in the nipping cylinder and the gripping cylinder to allow engagement and disengagement of the wire with one hand.

REFERENCES:
patent: 2425871 (1947-08-01), Eichorst
patent: 2682063 (1954-06-01), Miloche
patent: 3163187 (1964-12-01), MacIntosh
patent: 3273605 (1966-09-01), Ferrara
patent: 3420280 (1969-01-01), Allyn
patent: 3596357 (1971-08-01), Matsumoto
patent: 3759302 (1973-09-01), Attenborough
patent: 5004020 (1991-04-01), Meinershagen
patent: 5125830 (1992-06-01), Reinhard et al.

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