Medacta International Sa

Marco Riva

Francesco Siccardi

Meinrad Fiechter

Marco Rampon

Luca Pagani

Peter Petrie

Matteo Metzger

Samuele Meroni

Peter Petric

Various implementations include a polyaxial surgical screw and a device for implanting the screw. The screw comprises: an internally hollow tulip displaying a first open end for accessing inside the tulip, a second end opposite to the first end, and a side wall extending between the first and the second end; and a threaded shank displaying a first end defining the tip of the screw and a second end opposite to the first one displaying a ball joint joined to the second end of the tulip to orient said shank with respect to the tulip itself. The tulip also comprises at least one elongated rod projecting from the side wall and extending from the first end in a direction opposite to the second end.

Polyaxial surgical screw and device for implanting said surgical screw

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.

Surgical screwdriver

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.

A surgical device includes a polyaxial surgical screw that includes an internally hollow tulip. The tulip includes two elongated rods which are parallel and mutually spaced apart, each elongated rod protruding from a side wall of the tulip and extending away from a first end of the tulip in a direction opposite to a second end of the tulip. The rods define a channel in communication with the first end for accessing the interior of the tulip. A locking unit can be reversibly mounted on the polyaxial surgical screw. The locking unit includes a tubular body which has an inner cavity and is adapted to be fitted about the elongated rods during a configuration of use of the surgical device. The tubular body has two mutually opposite protrusions which project into the inner cavity that are configured to face the channel and be mutually interposed.

Surgical device

A device for positioning an implant for intervertebral fusion, comprising: a handle; a rod protruding from the handle along a main direction of extension of the device up to a free end; a coupler which couples with an implant for intervertebral fusion operatively active at the free end; wherein said coupler comprises: an axial retention assembly provided with a gripper arranged at said free end of the rod and selectively operable between a clamping and a releasing configuration, and an anti-rotational constraint assembly selectively movable between a locking position, in which it is arranged around said axial retention assembly and abuts said implant to prevent its rotation, and a disengagement position, in which it leaves the implant free to rotate in the gripper; and wherein the axial retention assembly and the anti-rotational constraint assembly are structurally different and complementary.

Device and kit for positioning an implant for intervertebral fusion

An intervertebral fusion cage for the fusion of two vertebral bodies of the vertebral column comprises a first portion and a second portion opposite the first, both having a planar conformation axially elongated along a central axis. The first and the second portion have respective contact surfaces for receiving, in abutment, a respective vertebral body. The cage can also comprise a gripping area for connection with a positioning device. The first and the second portion are hinged to each other along a hinge axis so as to be able to rotate relatively in relation to each other with a continuous movement.

Intervertebral fusion cage

An intervertebral implant () for the fusion between two vertebral bodies of a vertebral column comprising: &#x2014;a fusion cage (), extending from a posterior side to an anterior side, adapted to be interposed between two adjacent vertebral bodies of a patient; &#x2014;an asymmetrical fixing plate (), attached to the fusion cage () and having a plurality of passageways () for the insertion of bone screws on a single side.

Intervertebral implant with improved shape of the fixing plate

An Intervertebral implant () for the fusion between two vertebral bodies of a vertebral column comprising: an internally hollow fusion cage (); a fixing plate (); and cooperating features () for fastening said fixing plate () on the anterior side of the fusion cage (); the cooperating features () comprising restraining means () meant to restrain the fixing plate () in a posterior-anterior direction with respect to the fusion cage () and pivoting means () being arranged to guide a rotation, about a pivot axis (x), of said fixing plate () with respect to said fusion cage ().

Growing community of inventors

Castel San Pietro, Switzerland

Marco Riva