Twister for ligature wire
AssigneeKazuyuki Higurashi (Partial Interest)
InventorYoneo Kanno
Life of this patent
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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.
Claims7
A twister for orthodontic ligature wires, comprising a nipping cylinder having a gradually tapering forward portion and provided at a tip end thereof with a wire insertion port, said nipping cylinder being internally formed with a guide hole, which allows a wire to pass therethrough and being provided at an inner periphery of a tip end thereof with ridges, a gripping cylinder connected to a rear end of said nipping cylinder, a locking rod mounted inside said nipping cylinder and at a forward portion of said gripping cylinder and having a tip end thereof engageable with said ridges, and a manual button pivotally mounted to one side of said gripping cylinder and having an end of a shaft portion thereof pivotally mounted to a rear end of said locking rod, which end can be fixed in a state, in which the tip end of said locking rod is engaged with and disengaged from said ridges.
A twister for orthodontic ligature wires, comprising a nipping cylinder having a gradually tapering forward portion, a guide hole for passing of the wire therethrough, formed axially in said nipping cylinder, an insertion port formed at a tip end of said guide hole and provided with a compartment pin for inhibition of twisting, a gripping cylinder connected to a rear end of said nipping cylinder, and a locking mechanism mounted in said nipping cylinder for allowing engagement and disengagement of the wire in said guide hole.
A twister for orthodontic ligature wires, comprising a nipping cylinder having a gradually tapering forward portion, a guide hole for passing of the wire therethrough, formed axially in said nipping cylinder, an insertion port formed at a tip end of said guide hole, an engagement piece provided on an extension of one side of said insertion port for inhibition of twisting, a gripping cylinder connected to a rear end of said nipping cylinder, and a locking mechanism mounted in said nipping cylinder for allowing engagement and disengagement of the wire in said guide hole.
Dependencies are inferred from the claim text.