As for this invention, as for the medullary nail, the cannula condition rod where the proximal edge (3) and the distal end (4) extends between (2) and outside storing, the rod (2) the tubular sleeve (5), the rod (2) is the outer part tubular sleeve (5) and the same axis in regard to the medullary nail which is interposed in the long bone which fractures, and also the outer part tubular sleeve outside (5) is guided to axial direction with inside, the tubular sleeve (5) and the receiving part to which the rod (2) corresponds (6) the multiple form storage components which are stored inside (7) being, the form storage component (7) as for each one, the medullary nail the long boneIn order to make that it interposes possible, the form storage component (7) the form storage component (7) the respective receiving part (6) non use configuration and the form storage component which are stored inside (7) the outer part tubular sleeve (5) the slot inside (8) from the multiple form storage components which can take with the use configuration which projects (7) with it has.本発明は、骨折した長骨に挿入される髄内釘に関し、髄内釘は、近位端(3)と遠位端(4)との間に延びるカニューレ状ロッド(2)と、ロッド(2)を収容する外側管状スリーブ(5)であって、ロッド(2)が外側管状スリーブ(5)と同軸であるとともに外側管状スリーブ(5)の内側で軸方向に案内される外側管状スリーブ(5)と、ロッド(2)の対応する受部(6)内に収容される複数の形状記憶部材(7)であって、形状記憶部材(7)のそれぞれは、髄内釘を長骨に挿入することを可能にするために、形状記憶部材(7)が形状記憶部材(7)のそれぞれの受部(6)内に収容される非使用形態と、形状記憶部材(7)が外側管状スリーブ(5)内のスロット(8)から突出する使用形態とをとることができる複数の形状記憶部材(7)とを備える。
