1. The system (1) for determining the quality of the bone structure (2) of the subject, in particular, the porosity of the bone structure (2), comprising: a body (10； 40), made with the possibility of implementation by drilling into the bone structure (2) and representing the external surface (14), at least one first electrode (11) having a contact surface located on the outer surface (14) of the body (10； 40) in such a way that it comes into contact with the bone structure (2) during drilling, according to at least one second electrode (12) having a contact surface located on the outer surface (14) of the body (10； 40) in such a way that it comes into contact with the bone structure (2) at a distance from the first electrode (11) during drilling, an electric generator (23) configured to supply electric current between the surfaces contact of the first (11) and second (12) electrodes for a predetermined period of time, while the electric current has a characteristic selected from voltage and current, which is known, a measuring device (24), made with the possibility of continuous measurement during the indicated predetermined period of time of another characteristic selected from the voltage and electric current passing through the bone structure (2) between the contact surfaces of the first (11) and second (12) electrodes, the processing device (28), made with the possibility of continuous determination during the specified a predetermined period of time of an electrical quantity representing the ability of the bone structure (2) to provide the possibility of passing an electric current between the contact surfaces of the first (11) and second (12) electrodes on1. Система (1) для определения качества костной структуры (2) субъекта, в частности, пористости костной структуры (2), содержащая:корпус (10； 40), выполненный с возможностью внедрения путем сверления в костную структуру (2) и представляющий внешнюю поверхность (14),по меньшей мере один первый электрод (11),
