| 摘要 |
<p>A surgical instrument (10) is provided for cutting tissue. The surgical instrument (10) includes a shaft (20) having proximal (84) and distal (40) ends, a cutter (12) coupled to the distal end (40), and a handle (16) coupled to the proximal end (84). The cutter (12) is formed to include a base (30) having two cutting edges (50) providing an opening (51), a slider (32), and a tip (34) coupled to both the base (30) and the slider (32). The cutter (12) is formed to move between a fully open position in which the cutting edges (50) of the tip (34) form an obtuse angle (124) relative to the shaft (20) and a fully closed position in which the tip (34) is received within the opening (51) of the base (30). The handle (16) is arranged to move the cutter (12) between the open and closed positions.</p> |
