Patent ID: 9421072
Filing Date: 2016-08-23
CPC Classification: A61B,A61C

Claim Text:
1. A vibratory instrument comprising a tool releasably mounted on a tool carrier, said tool carrier being configured to be mechanically coupled in rigid manner with a vibration generator device, said tool comprising in succession along a longitudinal axis: a working portion presenting a free end reproducing the vibration transmitted by the vibration generator device; a coupling portion; and an elastically-deformable attachment portion extending in an upstream direction from the coupling portion, the attachment portion being directly adjacent to the coupling portion; said tool carrier comprising in succession along a longitudinal axis: a housing and a coupling bearing, the housing being a cavity having an inside dimensions configured to receive the attachment portion of said tool, the housing surrounding at least in part the attachment portion, an inner surface of the housing extending from a portion of the coupling bearing; and the coupling bearing surrounding the coupling portion of the tool, at least in part; and the attachment portion of the tool presenting outside dimensions that are adapted relative to the inside dimensions of the housing of the tool carrier so as to prevent contact between said attachment portion and said housing when the coupling portion of the tool is in contact with the coupling bearing of the tool carrier, wherein the coupling portion of the tool includes a portion having a frustoconical shape, and the coupling bearing of the tool carrier includes a portion having a frustoconical shape that is complementary to the shape of said coupling portion, said coupling portion and the coupling bearing also forming an axial abutment system, wherein the attachment portion includes a longitudinal slot, the longitudinal slot extending only in the attachment portion and not in the coupling portion, and wherein an inside diameter of a downstream portion of the frustoconical shape of the coupling bearing is greater than an inside diameter of an upstream portion of the frustoconical shape of the coupling bearing, the downstream portion of the frustoconical shape being closer to the working portion than the upstream portion of the frustoconical shape is to the working portion.