Scie sagittale chirurgicale permettant d'actionner une tête à lame oscillante, scie ayant un élément d'entraînement oscillant capable d'un mouvement de translation
A surgical saw comprising. The surgical saw comprises a housing (54) including a head (68, 68a) that extends from said housing for receiving a blade assembly (52, 702) having a blade bar (494, 494a) and two drive rods (74, 74a) moveably disposed within the blade bar and a blade head (76, 76a) that is configured to be oscillated by said two drive rods. The surgical saw further comprises two oscillating drive members (72, 72a, 72b) that extend outwardly from the housing head, each of said oscillating drive members are shaped to be connected to the corresponding drive rod so that the oscillation of the respective drive member results in the reciprocation of the corresponding drive rod. The surgical saw further comprises an oscillating drive assembly (240, 242, 418, 608, 616, 694) disposed in said housing that is configured to receive a rotational moment and convert the rotation moment to a motion that oscillates said oscillating drive members.Tthe oscillating drive members are mounted to said housing so as to engage in a first oscillating motion and in a second translation motion wherein, in the translational motion. The oscillating drive members move the blade assembly coupled thereto between a first position relative to the housing head and a second position relative to the housing head. The surgical saw further comprises at least one bracket (146, 148, 578) attached to the saw head. Said bracket positioned so that, when the oscillating drive member locates the blade assembly in the first position, the blade assembly is spaced from the bracket and, when the oscillating drive member locates the blade assembly in the second position, the blade assembly abuts the bracket.
