Abstract: An interspinous device for arthrodesis, comprising a main body of distraction, inserted between two adjacent spinous processes to provide a relative support; a first and a second pair of lateral stabilizers; support means of each of the pairs of stabilizers slidable with respect to the main body; and a threaded shaft of actuation of the lateral stabilizers, percutaneously operable to determine a rotation and a subsequent translation of the stabilizers with respect to said main body, wherein the overall arrangement is such that each stabilizer is rotatably movable relative to the main body between a first closed configuration and a second open configuration, in which the stabilizers are open wide, and between the second open configuration and a third retaining configuration, in which the open-wide stabilizers of the first pair are longitudinally juxtaposed to respective open-wide stabilizers of the second pair so as to abut a spinous process.

Abstract: An interspinous device for arthrodesis, comprising a main body of distraction, inserted between two adjacent spinous processes to provide a relative support; a first and a second pair of lateral stabilizers; support means of each of the pairs of stabilizers slidable with respect to the main body; and a threaded shaft of actuation of the lateral stabilizers, percutaneously operable to determine a rotation and a subsequent translation of the stabilizers with respect to said main body, wherein the overall arrangement is such that each stabilizer is rotatably movable relative to the main body between a first closed configuration and a second open configuration, in which the stabilizers are open wide, and between the second open configuration and a third retaining configuration, in which the open-wide stabilizers of the first pair are longitudinally juxtaposed to respective open-wide stabilizers of the second pair so as to abut a spinous process.

Abstract: Interspinous distractor for percutaneous implantation comprising a central body (10) and two couples of stabilizears (14a, 14b; 14c, 14d), hinged at the end of the body (10) in order to rotate from a closed position, which assists the percutaneous implantation of the distractor, to a spread apart position, which limits its movement stabilizing it in the interspinous gap. Means are provided for causing the rotation of the stabilizears that can be operated percutaneously, in particular, by means of cam shaped elements sliding axially and adapted to engage a cam-shaped surface, or by a system of tie members, and special tools. With respect to the known distractors it can implanted end extracted percutaneously and in a much easier way.

Abstract: An interspinous intervertebral distractor is described. The intervertebral distractor has a distraction main body to be inserted between two adjacent spinous processes to provide a corresponding support, and a first and a second pair of lateral stabilizers, rotatably connected to the main body, which pairs are arranged respectively in correspondence of or near to a first and a second end of the latter, the stabilizers of each pair being able to assume a spread apart configuration projecting with respect to the main body so as to be able to engage from a respective side the spinous apophyses, holding in position the main body itself, wherein, in such projecting configuration, each stabilizer has a tilt with respect to the frontal plane that is equal to about 30 degrees.

Abstract: An interspinous intervertebral distractor is described. The intervertebral distractor has a main body to be inserted between two adjacent spinous processes to provide a related support, a first and a second pair of lateral stabilizers, arranged respectively in correspondence of a first and a second end of the main body, and a rod that is percutaneously actuatable and has a shaped profile to cause the spreading apart of the stabilizers of the first pair, and of the second pair.

Abstract: Interspinous distractor for percutaneous implantation comprising a central body (10) and two couples of stabilizers (14a,14b;14c,14d), hinged at the end of the body (10) in order to rotate from a closed position, which assists the percutaneous implantation of the distractor, to a spread apart position, which limits its movement stabilizing it in the interspinous gap. Means are provided for causing the rotation of the stabilizers that can be operated percutaneously, in particular, by means of cam shaped elements sliding axially and adapted to engage a cam-shaped surface, or by a system of tie members, and special tools. With respect to the known distractors it can implanted end extracted percutaneously and in a much easier way.