Ultrasonic dental tool having a light source

A - Human Necessities – 61 – C

Patent

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Details

A61C 1/08 (2006.01) A61C 1/07 (2006.01)

Patent

CA 2596675

An ultrasonic dental insert having at least one light source. A first transducer generates ultrasonic vibrations. A connecting body has a proximal end and a distal end having a tip attached thereto. The proximal end is attached to the first transducer so as to receive the ultrasonic vibrations therefrom and to transmit the ultrasonic vibrations toward the tip attached to the distal end. A second transducer is disposed substantially proximate to the connecting body for generating a voltage signal in response to movement of a portion of the connecting body according to the ultrasonic vibrations. A magnetic material including a source of a magnetic field is present in close proximity to the insert. At least one light source substantially proximate to the tip is connected to and receives the voltage signal from the second transducer to generate light. The ultrasonic dental insert may be inserted into a handpiece for providing electromagnetic energy to the first transducer to generate the ultrasonic vibrations.

L~invention concerne un insert dentaire ultrasonique ayant au moins une source lumineuse. Un premier transducteur génère des vibrations ultrasoniques. Un corps de connexion possède une extrémité proximale et une extrémité distale ayant une pointe fixée à celle-ci. L~extrémité proximale est fixée au premier transducteur de façon à recevoir les vibrations ultrasoniques de celui-ci et à transmettre les vibrations ultrasoniques vers la pointe fixée à l~extrémité distale. Un second transducteur est disposé sensiblement près du corps de connexion pour générer un signal de tension en réaction à un mouvement d~une portion du corps de connexion selon les vibrations ultrasoniques. Un matériau magnétique englobant une source de champ magnétique est présent au voisinage immédiat de l~insert. Au moins une source lumineuse sensiblement proche de la pointe est connectée au et reçoit le signal de tension du second transducteur pour générer de la lumière. On peut introduire l~insert dentaire ultrasonique dans un combiné manuel pour injecter de l~énergie électromagnétique dans le premier transducteur afin de générer les vibrations ultrasoniques.

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