Interspinous fusion device

A system of an interspinous fusion device and an introduction device, said interspinous fusion device comprising:

• a central body defining a longitudinal direction and configured to be inserted between adjacent spinous processes;
• a pair of proximal jaws and a pair of distal jaws that are opposite to each other with respect to said central body and are spaced apart from each other along said longitudinal direction;
• and
• an actuation system of said proximal jaws and of said distal jaws, configured to be percutaneously actuated in such a way to move said jaws from a closed configuration to an open configuration of said jaws, wherein, in said open configuration, said jaws have free ends abutting against said spinous processes;
• wherein:
• said jaws are configured to move from said closed configuration to said open configuration in a predetermined fusion plane containing said longitudinal direction;
• said introduction device comprises an introduction tube configured to be inserted between two spinous processes, said introduction tube comprising a distal end, said introduction tube configured to guide said interspinous fusion device until said interspinous fusion device protrudes from said distal end of said introduction tube, and
• said introduction tube comprises two stiff wings extending from said distal end, said stiff wings oriented in such a way that, when said interspinous fusion device protrudes from said distal end, said interspinous fusion device can be freely moved from said closed configuration to said open configuration in a predetermined fusion plane containing said longitudinal direction, and said stiff wings are arranged parallel to said predetermined fusion plane,
• wherein said stiff wings have a predetermined width, and said central body has a predetermined height in said fusion plane, said width of said stiff wings substantially equal to said height of said central body, such that said stiff wings work as a spacer between two adjacent spinous processes when said interspinous fusion device is caused to protrude from said distal end, and
• said system also comprising a file tool arranged to be slidingly received within said introduction tube and to protrude between said two stiff wings so as to form a passageway for said interspinous device through biological tissues.