Anthogyr

Cédric Lancieux

Hervé Richard

Catherine Priou

A dental handpiece () includes a head () suitable for driving a tool, a body () having a proximal section () extending in a longitudinal direction (I-I) and intended to be connected, by a proximal end surface (), to a distal surface of a drive motor, an indexing device () suitable for rotatably positioning the body () of the dental handpiece () about the longitudinal direction (I-I) relative to the drive motor, an electric device () for lighting the working area of the tool, and a device () for supplying electric power to the electric lighting device (). The indexing device () is retractable or set back from the proximal end surface (), and the electric supply device () includes a retractable electrical connection device ().

Handpiece having an electrical connection means

A device for centering and guiding at least one drill bit of a dental handpiece when drilling a hole in the jaw of a patient in cooperation with a surgical guide equipped with a tubular drill bushing. A support holds a tubular guide sleeve permanently in a coaxial and sliding position with respect to the drill bit. The tubular guide sleeve is able to engage with slight play in the tubular drill bushing. The support insures the engagement of the guide sleeve in the tubular drill bushing at the latest when the drill bit starts to drill in the patient's jaw, thus insuring the centering and guiding of the drill bit.

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Chabeuil, France

Cédric Lancieux