| 摘要 |
An anvil assembly comprising: an anvil plate having a tissue contact surface defining a plane and a plurality of anvil pockets formed therein, each of the anvil pockets having a central longitudinal axis and including first and second staple forming cups, each of the first and second staple forming cups having an outside portion and an inside portion, the inside portion of the first and second staple forming cups being positioned in close relation to each other on the central longitudinal axis of the anvil pocket, the outside portion of the first and second staple forming cups being positioned in spaced relation to each other on the central longitudinal axis of the anvil pocket, each of the first and second cups being defined by sidewalls and an elongated base surface extending along the central longitudinal axis of the anvil pocket, wherein the sidewalls of each of the first and second cups form an acute angle with respect to the plane defined by the tissue contact surface of the anvil plate at the outside portion of the cup and become progressively more perpendicular towards the inside portion of the cup such that the first and second cups are substantially vertical through at least a portion of the inside portion of the cup. |
