. "stapling instruments incorporating same, taken in conjunction with the accompanying drawings, wherein: FIG. 1 is a longitudinal section of a known bush serving as a mandrel for the hollow organ end to be everted; FIG. 2 is the view of FIG. 1, with the hollow organ end to be everted introduced into the bush; FIG. 3 is the view of FIG. 1 with an everted end of a hollow organ; FIG. 4 is the view of F" . . .