This creation is a kind of improvement (two) of the related dedicated Bone nail structure of Minimally Invasive Surgery, refering in particular to one kind, group sets a second sidewall respectively by two the first side walls from ontology, and be equipped with corresponding group between what the first side wall top and second sidewall bottom end and set component, with operating space needed for sufficiently providing bone nail and effectively reduce the opening area of wound.本創作係有關一種微創手術專用骨釘結構之改良(二)，特指一種藉由自本體之二第一側壁分別組設一第二側壁，且於第一側壁頂端與第二側壁底端間設有相應之組設構件，以充分提供骨釘所需之操作空間與有效減小創傷之開口面積。
