Colleted adjustable flat dental tool

A - Human Necessities – 61 – C

Patent

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Details

A61C 1/07 (2006.01) A61C 3/03 (2006.01)

Patent

CA 2182858

A dental implement designed to be retained for reciprocating movement by the sleeve member of a dental handpiece. The dental implement is comprised of a flat dental tool having a flat blade portion and a flat shank portion. The flat blade portion can also be formed with a triangular or arcuate cross section while retaining the flat shank portion and the blade edges can be straight or have a saw- tooth configuration. A removable tool holder has a slot to receive the dental tool and an outside cylindrical shape complementary with the bore of the sleeve member. Forces applied to the tool holder control the displacement of locking protrusions on the tool shank to selectively permit the tool to be driven in a reciprocating movement with or without rotation and to be removed entirely from the sleeve member.

Ustensile dentaire conçu pour être logé dans le manchon d'une pièce à main dentaire et effectuer un mouvement va-et-vient. Cet ustensile est composé d'un outil dentaire plat comprenant une partie lame plate et une partie talon plat. La partie lame plate peut aussi avoir une section transversale triangulaire ou arquée tandis que la partie talon plat reste inchangée, et le fil de lame peut être soit droit soit en dents de scie. Un porte-outil amovible a une fente pour recevoir l'ustensile dentaire, ainsi qu'un profil extérieur cylindrique prévu pour s'encastrer dans l'orifice du manchon. Les forces exercées sur le porte-outil commandent le déplacement des saillies de blocage sur la tige d'outil pour permettre d'actionner sélectivement l'outil dans un mouvement va-et-vient, avec ou sans rotation, et de le retirer entièrement du manchon.

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