| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a surgical stapler / severing instrument for maintaining a proper spacing in an end effector to achieve proper stapling of severed tissue. <P>SOLUTION: The surgical stapler / severing instrument, suitable for laparoscopic and endoscopic clinical procedures, clamps tissue within the end effector including an elongate channel pivotally opposed by an anvil. An E-beam firing bar moves to the distal side through the clamped end effector to sever the tissue and to drive staples on each side of the cut. The E-beam firing bar forms a fixed spacing between the anvil and the elongate channel to form properly closed staples, especially when an amount of the clamped tissue is inadequate to space the end effector. In particular, an upper pin of the firing bar longitudinally moves through an anvil slot and a channel slot is captured between a lower cap and a middle pin of the firing bar to assure a minimum spacing. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
