< Topic >This invention, while offering necessary mooring function, although it absorbs the power which joins offers the dynamic bone screw which possesses sufficient flexibiility.SolutionsThe long structure where the bone screw, for example the bow root screw, the head, has the distal (2036) point, and the open spiral itself which extends between those from the mooring section or the head is included. In one execution form, this invention offers the screw which possesses the mooring section, engages the said screw in the bone, the driver, or, includes the expedient which engages in similar ones, screws in the screw to the bone with the mooring section. Also the method of driving the screw is offered and.< Selective figure >Figure 3【課題】本発明は、必要な係留機能を提供しつつも加わる力を吸収するのに十分な可撓性を有する動的骨スクリューを提供する。【解決手段】骨スクリュー、例えば椎弓根スクリューは、頭部、係留部又は頭部から遠位の先端、及び、それらの間に延びる開放螺旋本体を有する細長い構造を含む。一つの実施形態において、本発明は、係留部を有するスクリューを提供し、該スクリューは骨に係合し、ドライバー、又は、同様のものに係合する手段を含み、スクリューは係留部によって骨にねじ込む。スクリューを駆動させる方法もまた提供される。【選択図】図3
