When releasing or increasing body having a (7) and needle (2), the gripping means (4), the pressure in the distal direction which the user takes the gripping means (4), the present invention, the injection phase, and buffered with at least one of two directions proximally or distally moving limited (4) gripping means for one injection, at least one of the two directions in the proximal direction or the distal direction injection assisting device comprising elastic return of the first order phase, maintained at the insertion position body (2), to keep the insertion length of the fixed needle (7) means, and (9) relating to (1) . The present invention also relates to (100) infusion set, including (1) and auxiliary equipment (3) the injection device.本発明は、針(7)を有する本体(2)と、把持手段(4)と、使用者が把持手段(4)にかかる末端方向の圧力を増加させ、または解放するとき、注入段階中、末端方向または基端方向の2つの方向のうちの少なくとも一方への把持手段(4)の制限された移動を末端方向または基端方向の2つの方向のうちの少なくとも一方で緩衝し、かつ、注入段階中、本体(2)をその挿入位置に維持し、針(7)を一定の挿入長さに維持するための第1の弾性戻り手段(9)と、を含む注入補助装置(1)に関する。本発明はまた、注入装置(3)および補助装置(1)を含む注入セット(100)にも関する。
