Transplantation piece (30 62) Or approaching to the said proximal edge in the proximal edge, the fixed concatenated tool which possesses the hyperboloid form which is located (10 50) The small-sized nerve tube sutento transplantation piece which it has (30 62). Fixed concatenated tool (10 50) Way operation to Takata direction is made possible without impairing the consistency of the sealing field, the transplantation piece of the possession window (40 60) Window (42 65) It is possible to expand inside.移植片(30;62)の近位端にまたは該近位端に近接して位置付けられた双曲面形状を有する固定連結具(10;50)を備える小型脈管ステント移植片(30;62)。固定連結具(10;50)は、密封領域の整合性を損なうことなく多方向への動作を可能にするように有窓の移植片(40;60)の窓(42;65)内に展開することができる。
