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1356results about "Arch wires" patented technology

Robot and method for bending orthodontic archwires and other medical devices

A robotic bending apparatus for bending archwires and other types of elongate, bendable medical devices into a desired configuration includes a first gripping tool and a moveable gripping tool. The first gripping tool can be either fixed with respect to a base or table for the robot or positioned at the end of robot am. The moveable gripping tool is mounted to the end of a moveable robot arm having a proximal portion also mounted to the base. The robot preferably comprises a six axis bending robot, in which the distal end of the moveable arm can move relative to the fixed gripping tool about three translational axes and three rotational axes. The gripping tools preferably incorporate force sensors which are used to determine overbends needed to get the desired final shape of the archwire. The robot may also include a resistive heating system in which current flows through the wire while the wire is held in a bent condition to heat the wire and thereby retain the bent shape of the wire. A magazine for holding a plurality of straight archwires needing to be bent and a conveyor system for receiving the wires after the bending process is complete are also described. The robot bending system is able to form archwires with any required second and third order bends quickly and with high precision. As such, it is highly suitable for use in a precision appliance-manufacturing center manufacturing a large number of archwires (or other medical devices or appliances) for a distributed base of clinics.
Owner:ORAMETRIX

Self-ligating bracket for use in orthodontics

ActiveUS20080113311A1Easy to openAcceptably attractive appearanceArch wiresBracketsOrthodontic ligatureEngineering
The self-ligating bracket for use in orthodontics comprises
a base; an occlusal wall and a gingival wall extending from the base and having at least one ligature wing; a slot separating the occlusal wall and the gingival wall; a slide retained in a guide provided in the occlusal and/or gingival wall and arranged for being displaced between a closed position, in which the slide bridges the slot, and an open position in which the slot is open in the labial direction; means capable of retaining the slide in both its closed and open position; at least one recess in which a spring is seated and which is arranged in the gingival or occlusal wall of the bracket and is provided with an opening that faces the slide and from which a spring projects; a first stop on the slide which abuts against the at least one spring in the open position of the slide; a projection is which provided on the slide and which is so arranged that during displacement of the slide to its closed position it will abut against the spring before it reaches its closed position; space on both sides of the projection which accommodates the spring that projects from the recess which expands toward its opening facing the slide so that the spring can bent in the two directions of displacement of the slide; a second stop that abuts the slide in its closed position, once its projection has overcome the at least one spring.
Owner:BERNHARD FOERSTER GMBH 75172 PFORZHEIM DE
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