Patent ID: 8945193
Filing Date: 2015-02-03
Classification: A61B

Abstract:
1. A surgical implant system comprising: a screw element having at least one thread adapted to fix a first bone and a second bone together; said screw element comprising a core having an inner wall that defines a hollow area and an outer wall having at least one threaded zone, wherein said hollow area is adapted to receive a biological material and provide a fusion mass traversing across a joint and in fusion with each of said first bone and said second bone; said core being fenestrated with at least one window; and said core being adapted to receive biological material for the promotion of osteosynthesis or fusing of said first bone and said second bone and for permitting said biological material to pass through said at least one window; a buttressing head integrally formed at a tool-receiving end of said screw element and being dimensioned to be larger in diameter than said at least one thread to provide external buttressing as said screw element is screwed into bone, said tool-receiving end comprising a tool attachment zone adjacent said buttressing head, said tool attachment zone adapted to be secured to an introducer or inserter tool; wherein said at least one thread comprises a first thread having a first thread pitch, a second thread having a second thread pitch and an intermediate portion coupling said first and second threads; said implant system further comprising an introducer or inserter tool, said introducer or inserter tool comprising: a generally cylindrical body having a first end adapted to be secured to said tool attachment zone and a second end; said generally cylindrical body comprising an aperture or bore therethrough adapted to permit biological material to be passed therethrough and into said hollow area of said screw element; wherein the first end of said introducer or inserter tool comprises at least one engaging surface for (i) engaging said tool attachment zone and applying a torque or rotational force to the screw element to screw the screw element into bone, (ii) causing an alignment of said aperture or bore of said introducer or inserter tool and said hollow area of said screw element so that said biological material may be passed through said bore and into said hollow area, and (iii) fixing said introducer or inserter tool to said screw element.