| 摘要 |
<p>A surgical stapler (10) includes a moving driver (15) and an anvil (16) moving in the same direction as the driver to pick off a staple from a supply (28), and to transport it to a forming station (48). The anvil (16) is there stopped, but the driver (15) continues to move forwardly forming the staple about the anvil (16). The anvil (16) is locked against retraction until the driver (15) is partially retracted in order to facilitate staple ejection. A drive linkage includes a four-bar linkage (75) and a trigger mounted cam drive (88, 90) for dispersing required input forces over the trigger movement and minimizing force variations and maximum input. Modular features and construction provide use and manufacturing advantages Methods are included.</p> |
