ORTHOPAEDIC SURGERY APPARATUS FOR GUIDING A TOOL AND FOR SUPPORTING A LIMB

摘要

An apparatus for guiding a surgical tool (1), mounted on a mechanism (3) connected to a head (4) of a robotised positioning unit (5). The mechanism (3) defines a plane of movement integral to the head (4) which has a plurality of degrees of freedom, by means of arms (10, 11, 12, 13, 14) rotating with respect to one another. The positioning unit (5) is connected to a basement (17) movable on wheels under a surgical bed (18) and which can secured to the latter. The positioning unit (5) brings the head (4) in a predetermined location of the space so that the tool (1) is located near the operation region, the plane of the mechanism (3) integral to the head (4) is parallel to the plane of a reference surface which has to be created on the bone, and the manually operated tool (1) cuts with the precision said reference surface parallel to such plane. An equipment (19) for the support of the leg and for reference to the knee is also provided. The apparatus allows the creation with precision of reference surfaces for implanting a prosthesis thereon.