| 摘要 |
PROBLEM TO BE SOLVED: To provide a surgical stapling instruments for utilizing bent back span staples and having a corresponding anvil including bent staple forming buckets.SOLUTION: A cartridge assembly 22 is disposed at a distal end of a tubular body portion 20 for expelling an annular array of staples 24. Each of the staples of the annular array of staples has a leg and a bent or curved backspan, and is disposed at the distal end of the cartridge assembly. An anvil member 26 located opposite to the cartridge assembly is for clinching the staples in a tissue upon expulsion of the staples from the cartridge assembly. The anvil member has a corresponding annular array of staple forming buckets. Each of the buckets has a linear configuration.The staples are bent by the buckets to extend so that the leg reaches to the backspan or exceed the position of the backspan. |
