Elongated-member-driving apparatus – Surgical stapler – With magazine
Reexamination Certificate
2006-09-29
2008-12-23
Nash, Brian D (Department: 3721)
Elongated-member-driving apparatus
Surgical stapler
With magazine
C227S019000, C227S179100
Reexamination Certificate
active
07467740
ABSTRACT:
A surgical instrument for being endoscopically or laparoscopically inserted into a surgical site for simultaneous stapling and severing of tissue includes force adjusted spacing between an upper jaw (anvil) and a lower jaw (staple cartridge engaged to an elongate staple channel) so that the height of staple formation corresponds to the thickness of the tissue, yet does not exceed the height range that may be accommodated by the length of the staples. In particular, resilient structures may be formed into one or more of the elongate channel that supports the staple cartridge, the anvil that is pivotally attached to the elongate channel, and/or a firing member that includes a cutting surface (knife) that severs tissue between a top pin that engages the anvil and a lower foot that engage the elongate channel. The resilience responds to the force exerted by clamped tissue to vary the spacing between the anvil and the staple cartridge supported within the elongate channel.
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Fugikawa Leslie M
Morgan Jerome R.
Murray Michael A.
Shelton, IV Frederick E.
Spivey James T.
Ethicon Endo-Surgery Inc.
Nash Brian D
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