Abstract: A surgical device comprising a handling member comprising a sleeve with a central slot and a guiding pin, a guiding element that can be slid into the central slot and externally having a guiding groove that is slidably coupled to a guiding pin, locking means configured to lock the sliding of the guiding element inside the central slot, and switchable between an activation configuration, wherein the movement of the guiding element inside said central slot is prevented, and a deactivation configuration, wherein the movement of the guiding element is free. The guiding groove comprises a first and a second rectilinear groove portion, angularly spaced apart and mutually interconnected by means of a transversal connecting groove portion interposed between said first and said second rectilinear groove portions.

Abstract: A device for tensioning a surgical thread comprising: an elongated body having a tip portion adapted to be arranged in contact with a knot of a surgical thread wound about a patient's bone and a maneuvering member connected to the elongated body by a screw and nut mechanism configured to adjust the distance between said elongated body and said maneuvering member, said maneuvering member having respective coupling portions for coupling opposite ends of the surgical thread wound and knotted about the bone. The opposite ends of the surgical thread reversibly constrainable to the respective coupling portions in a use configuration of the device. The distance between the elongated body and the maneuvering member can be increased along a movement axis to tension the opposite ends so as to tighten the surgical thread about the bone. The tip portion has a groove shaped to receive at least partially the knot.

Abstract: A femoral component and a tibial component are respectively configured to exclusively couple with the distal end of a femur bearing a femoral prosthesis and with the proximal end of a tibia bearing a tibial prosthesis. The femoral component has a distal portion configured to face the distal end of the femur, bearing distal positioning holes facing a distal region of the femoral prosthesis. A frontal portion extends on the continuation of the distal portion and has a first abutment area operating against the femur bone part and a second area facing a frontal region of the femoral prosthesis. The frontal portion has at least two guide holes at the first abutment area, and at least two frontal positioning holes at the second area.

Abstract: A surgical device for arthroscopy includes an insertion arm having a folded contact end, a handle connected to a connection end of the insertion arm, opposite to the folded contact end, and extending transversely to the insertion arm, and a retrieval element connected to the insertion arm and mobile along the insertion arm between a retracted position and an extracted position in which it intercepts a leading end of a suture thread at the folded contact end, and mobile between the extracted position and the retracted position in which it holds the leading end. The retrieval element is a basket made of flexible material defining a containment volume for receiving said leading end of the suture thread. The containment volume is configured to expand in the transition between the retracted position and the extracted position and to shrink in the transition between the extracted position and the retracted position.

Abstract: A method for calculating the shape of a rod of a pedicle screw system includes a) acquiring at least one bidimensional image of a spine; b) acquiring a tridimensional image of the spine; c) obtaining a tridimensional model of the spine; d) performing a sagittal balance analysis to calculate spino pelvic parameters and comparing them with predetermined values; e) applying corrections to the tridimensional model; f) calculating corrected spino pelvic parameters on the tridimensional model of the spine corrected and checking if they are within the predetermined range values; g) in negative case, repeating steps e)-f); i) in positive case, obtaining a tridimensional corrected model of the spine based on such tridimensional simulated corrections including a plurality of virtual screws; j) calculating the shape of the rod as mathematical function which approximates the curve passing through the virtual screw.

Abstract: Various implementations include a positioning device of a surgical instrument for hip arthroplasty surgery that includes an arched structure having a first and a second end, wherein the first end can be positioned inside a patient, a gripping element located at the second end of the arched structure, a surgical instrument that can be coupled to the gripping element at a seat made in this gripping element, and a positioning and fixing head arranged at the first end of the arched structure.

Abstract: A patient limb positioning apparatus comprises a movement assembly operating on a coupling bracket which can be engaged with the patient's limb, to move the limb according to a plurality of axes of movement. The movement assembly comprises, for at least one of said axes of movement, a drive unit which can be activated to move the coupling bracket according to a predetermined direction of movement. A load transducer detects a load transmitted between the coupling bracket and the drive unit in the respective direction of movement, to emit a signal representative of a detected load value. An electronic control unit is selectively switchable to a load control command mode and is suitable to cyclically compare the measured load value with a pre-set load value, to control activation of the drive when the detected load value differs from the pre-set load value.

Abstract: A patient limb positioning apparatus comprises a movement assembly operating on a coupling bracket which can be engaged with the patient's limb, to move the limb according to a plurality of axes of movement. The movement assembly comprises, for at least one of said axes of movement, a drive unit which can be activated to move the coupling bracket according to a predetermined direction of movement. A load transducer detects a load transmitted between the coupling bracket and the drive unit in the respective direction of movement, to emit a signal representative of a detected load value. An electronic control unit is selectively switchable to a load control command mode and is suitable to cyclically compare the measured load value with a pre-set load value, to control activation of the drive unit when the detected load value differs from the pre-set load value.

Abstract: 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.

Abstract: Various implementations include a surgical screwdriver that comprises a first rotating shaft configured to be rotated about a respective longitudinal axis, a second rotating shaft extending along a respective development axis transverse to the longitudinal axis of the first shaft and having a shaped end tip which can be inserted into the head of a screw, and a transmission member interposed between respective first ends of the shafts to transfer the rotation from the first shaft to the second shaft. The transmission member comprises a homokinetic spherical joint.

Abstract: Various implementations described herein relate to a minimally invasive auxiliary tool for knee surgery. The tool comprises a handle in proximal position, a shaft defining an axis, and a shaped tip in distal position. In the tool: the handle, the shaft, and the shaped tip define a channel that connects the proximal end with the distal end of the tool; and the perimeter of the shaped tip comprises a plurality of sectors, wherein each sector is defined by a respective circular arc centred on the axis and wherein the circular arcs that define the various sectors have respective radii that are different the one from the others. Various implementations also include a kit comprising a tool and a bone reamer.

Abstract: 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.

Abstract: Various implementations include a surgical screwdriver that comprises a first rotating shaft configured to be rotated about a respective longitudinal axis, a second rotating shaft extending along a respective development axis transverse to the longitudinal axis of the first shaft and having a shaped end tip that can be inserted into the head of a screw, and a transmission member interposed between respective first ends of the shafts to transfer the rotation from the first shaft to the second shaft. The transmission member comprises a pair of hemispherical elements, hinged together about a respective junction axis that is perpendicular to the longitudinal axis of the first shaft, and each hemispherical element is in turn hinged to a first end of one of said shafts.

Abstract: Various implementations include an alignment device for carrying out a periacetabular osteotomy operation on a patient that includes a patient-specific acetabular unit, to be fixed in a univocal position on the iliac bone, in proximity of the acetabulum; a patient-specific iliac unit, to be fixed in a univocal position on the iliac bone, in a lateral position with respect to the acetabular unit; and a patient-specific bridge, to be connected in a rigid and univocal manner to the acetabular unit and to the iliac unit. The acetabular unit and the iliac unit assume a first mutual position incompatible with the bridge. When osteotomy is carried out and the bridge is connected to the acetabular unit and the iliac unit, they assume a second position, different from the first position and corresponding to a bio-mechanically correct position of the acetabulum with respect to the remaining portion of the iliac bone.

Abstract: Various implementations include a cutting tool for the horizontal incision of tendons. The tool comprises a stem extending along a longitudinal axis, having a distal end, a proximal end and a cutting head, located close to said distal end, having a base plate, having a longitudinal extension axis parallel to the longitudinal axis of the stem, and a blade extending on a plane parallel to the base plate. The blade has a plurality of cutting edges inclined with respect to the longitudinal axis of the cutting head according to different angles, so as to identify at least two vertices defined by two V-shaped profiles.

Abstract: A template for measuring the cross section of a graft comprises a first half-body and a second half-body. The two half-bodies are mutually secured such that they can rotate the one with respect to the other around an axis, each one of the two half-bodies comprises a plurality of openings having known and different sizes, each one of the openings of the two half-bodies is open toward the outside through an at least partially radial slot. The two half-bodies can rotate the one with respect to the other around the axis between an open position and a closed position and vice versa. In the open position the slots of the first half-body axially coincide with the slots of the second half-body, and in the closed position the openings of the first half-body axially coincide with the openings of the second half-body.