Medacta International SA

A device for shaping and cutting a bone graft comprises a main body extending along a longitudinal axis from a lower end to an upper end and having inside it a housing for the insertion of the bone graft to be shaped, an upper opening located at the upper end for the insertion of the bone graft into the housing, a lower support designed to support the bone graft, and an upper surface defining a cutting plane placed at the upper end and containing said upper opening, wherein the cutting plane is inclined with respect to the longitudinal axis by an angle ranging between 90° and 30°, preferably between 90° and 60°.

An expandable intervertebral cage includes a first plate and a second plate opposite to the first one. The cage further comprises a movement and adjustment mechanism of the two plates suitable to promote the relative mutual translation between the first and second plate parallel to each other. The movement and adjustment mechanism comprises a single central shaft, coaxial with a central longitudinal axis of the plates and having an external thread, a proximal wedge and a distal wedge placed between the first and second plate, aligned along the central longitudinal axis and coupled to the external thread of the central shaft which is centrally inserted in the distal wedge and the proximal wedge. The movement and adjustment mechanism also comprises a first actuator and a second actuator, both provided on the central shaft and placed at the same proximal end of the cage.

A method for selecting a rod of a pedicle screw system for spinal fusion is performed by determining the position of a group of screws in a predefined reference system based on the spine of a patient and creating an initial patient rod model connecting the group of screws. Furthermore, it is possible to apply predetermined correction factors to the initial patient rod model and then calculating a final patient rod model based on said correction factors. Finally, the final patient rod model is compared with a database of a plurality of predefined pre-bent rod models and then one predefined pre-bent rod model is selected based on a best fit between the final patient rod model and the plurality of predefined pre-bent rod model.

The present invention relates to a substrate of a metal, preferably titanium or a titanium alloy, having at least one surface coated with an oxide layer of the metal itself, said surface being modified and enriched with Ca, P, Ga, Sr, and, optionally, Ag by anodic spark deposition (ASD). The present invention also relates to a process for producing said substrate by applying the anodic spark deposition (ASD) technique to a substrate, optionally pre-treated, immersed in an electrolytic solution comprising Ca, P, Ga, Sr and, optionally, Ag. Finally, the present invention also relates to a prosthesis and a surgical implant comprising or preferably produced with said substrate, as well as the use thereof for the prevention of bacterial colonisation and promotion of osteointegration in implantology operations, preferably orthopaedic prosthetic implantology.

A device for anchoring a shoulder prosthesis in a reverse configuration includes a baseplate delimited at the bottom by a first at least partially convex surface, and at the top by a second concave surface, opposite the first surface, and peripherally by a third truncated-cone or cylindrical surface; and a central pin, protruding from the first surface at a first end thereof, and defining an axially pass-through inner duct having at least one main diameter. The central pin has a second free end, opposite the first end. The duct has a helical cavity made in the inner wall delimiting the duct, open towards the inside of the duct and extending along the length of the duct. The inner duct has a secondary diameter smaller than the main diameter, and the helical cavity has a diameter larger than the main diameter of the inner duct.

A surgical tool for positioning a surgical device including a gripping portion; a rod protruding from the gripping portion; and a coupling system. The coupling system comprises an axial retention assembly comprising, at a free end of the rod, two opposite semispherical portions, wherein the respective flat surfaces are separated from each other by an axial notch made partially along the rod, and a central clutch movable between a locking position and a disengagement position. In the locking position, the central clutch approaches the free end of the rod and is interposed between the two semispherical portions, preventing the reciprocal approach thereof so as to block the two semispherical portions within a seat of said surgical device. In the disengagement position, the central clutch moves away from the free end and the two semispherical portions can approach to allow the tool to come out of the surgical device.

An apparatus for positioning a lower limb of a patient during surgery comprises at least one support structure connectable, through a proximal end, to a support device for a patient and defining a traction axis of the patient's lower limb, a traction slide slidingly movable on the support structure, a gripping body for a distal end of the patient's lower limb connectable to the traction slide. The support structure, when connected to the support device for a patient, is suspended and comprises at least one actuator, hydraulically connected with the traction slide, for moving the support structure in space.

A tibial-femoral trial implant comprises a femoral trial insert, which comprises a medial condyle and a lateral condyle, and a tibial trial insert, which comprises a medial plate and a lateral plate. The implant further comprises a graduated reference system adapted to indicate the relative angular deviation between the femoral trial insert and the tibial trial insert about a vertical axis, passing through the center of a sphere defining the medial condyle of the femoral trial insert, following a roto-translational movement of the femoral trial insert from a first position, identifying a knee extension position, to a second position, identifying a knee flexion position.

A suture includes an outer sheath with color marks and a background visually distinguishable from the color marks. Each color mark has exposed portions of at least two colored yarns of first and second different colors. The background includes exposed portions of background yarns of a background color. The background yarns and the colored yarns are braided to each other. The first and second colors are different from the background color. The color marks are arranged in at least one row along a longitudinal direction of the suture. Each color mark is longitudinally shifted with respect to a subsequent color mark in a same row by a first shift, and the exposed portions of the colored yarns of each color mark are substantially parallel to each other and arranged in a sequence along the longitudinal direction of the suture.