Surgical instruments with jaws that are pivotable about a fixed axis and include separate and distinct closure and firing systems

摘要

A surgical instrument with first and second jaws that are pivotally supported relative to each other for pivotal travel about a fixed pivot axis between open and closed positions. A firing member is movably supported for selective axial travel between starting and ending positions within at least one the jaws and is configured to engage both jaws when the jaws are in a closed position. A firing system operably interfaces with the firing member to selectively axially move the firing member between the starting and ending positions and a closure system that operably interfaces with at least one of the jaws to move the jaw between the open and closed positions without actuating the firing system.