that is the object of the present invention is an element that connects the injection device 2 and the bone screw connector 3 more particularly the conductor device 1 comprises an outer encasement 4 that involves a conductor body 5 whose ends 6 7 are exposed for due encasement with the injection device 2 and the bone screw 3 as persons skilled in the art will appreciate the injection devices 2 and the bone screws 3 are known surgical instruments that have been used for years and for this reason it is understood that there is no need to provide more specific details thereon it is important to point out that the injection devices 2 are provided with an applicator nozzle provided with connection means of the thread type and the bone screws 3 have an end called interface connector which can be the very head of the screw itself these connectors comprise a cylindrical format with semi open side walls and internally have means for attaching the osseous synthesis for example a threaded surface or any suitable means of adaptation commonly used in surgical treatments more particularly in relation to fig2 and 3 it is observed that the outer encasement 4 comprises preferably a cylindrical format in which one of its ends has a connection mechanism 8 whose purpose is to promote the encasement and attachment of the conductor device 1 in the interface connector or in the bone screw head commonly the connector devices of the bone screws 3 are provided with inside threads which is why the connection mechanism 8 of the outer encasement 4 should correspond to these characteristics that is a thread corresponding to the inside thread of the connector device of the.