| 摘要 |
A surgical instrument has a pair of opposed jaws constructed and arranged to open and close relative to one another. Each jaw has a proximal end connected to part of the surgical instrument, an opposite jaw tip end, and a confronting surface arranged facing the opposite jaw. A perimeter defines a boundary of the respective confronting surface and jaw tip end for each jaw. At least a first cutting edge portion is provided on a part of each jaw perimeter whereby that part defines the jaw tip end. Each first cutting edge portion is oriented extending toward the corresponding first cutting edge portion of the opposite jaw. Each first cutting edge portion is curved concavely inward toward the proximal end of the respective jaw. The curved first cutting edge portions are oriented precisely as desired relative to the longitudinal axis of the instrument. The curved first cutting edge portions can be oriented such that a longitudinal axis of the instrument jaws bisects an arc of the first cutting edge portions, or wherein a bisecting line of an arc of the first cutting edge portions is oriented at an angle relative to the longitudinal axis of the instrument jaws. |
