Improvement to mechanized dental instruments, including...

A - Human Necessities – 61 – C

Patent

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Details

A61C 1/14 (2006.01) A61C 1/18 (2006.01) A61C 3/04 (2006.01)

Patent

CA 2512218

The invention relates to a dental power instrument, in particular an endodontic instrument, comprising an operative part (2) and a handle (3) which is disposed at the opposite end to said operative part (2). The invention is characterised in that the handle (3) of the dental instrument is equipped with a rotary drive means (4) which, when mounted in the head (5) of a handpiece, can engage directly with a rotary drive means upstream of said head. Moreover, the aforementioned drive means (4) can be retracted independently of the means used to drive the handpiece head and said drive means (4) rotates in the same direction as the handpiece head drive means. The invention also relates to a handpiece head and a dispenser for such dental power instruments.

La présente invention concerne un instrument dentaire mécanisé, en particulier instrument d'endodontie, constitué d'une partie active (2) et d'un manche (3) disposé à l'extrémité opposée à ladite partie active (2), caractérisé en ce que ledit manche (3) de l'instrument dentaire est pourvu d'un moyen d'entraînement (4) en rotation susceptible d'engrener en position de montage dans une tête (5) d'une pièce à main directement avec un moyen d'entraînement en rotation situé en amont de la tête de la pièce à main, cedit moyen d'entraînement (4) étant rétractable indépendamment dudit moyen d'entraînement de la tête de la pièce à main, et cedit moyen d'entraînement (4) ayant le même sens de rotation que le moyen d'entraînement de la tête de la pièce à main. La présente invention concerne également une tête d'une pièce à main et un distributeur pour de tels instruments dentaires mécanisés.

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