Surgical bone preparation instrument and assembly comprising same

This surgical bone preparation instrument (1) comprises a main body (5) terminated by a contacting surface (50) adapted to abut on a bone (B), and a sliding body (7) equipped with a cutting element (3) and which is movable in translation with respect to the main body (5). The bone preparation instrument (1) includes a cutting depth control ring (11) that is adjustable by a single hand, which formsan abutment surface (110) against the movement of one of the main body (5) and the sliding body (7) when the sliding body (7) reaches an adjusted cutting depth (D) corresponding to an adjustment position of the control ring (11). 本发明涉及一种外科骨骼准备器械(1)，包括主体(5)和滑动体(7)，所述主体(5)由适于抵住骨骼(B)的接触表面(50)终止，所述滑动体(7)配备有切削元件(3)并且能相对于所述主体(5)平移移动。所述骨骼准备器械(1)包括能通过单手调节的切削深度的控制环(11)，当所述滑动体(7)到达对应于所述控制环(11)的调节位置的调节后的切削深度(D)时，所述控制环(11)形成抵抗所述主体(5)和所述滑动体(7)中的一个的移动的抵接表面(110)。