Surgical anvil manufacturing methods
AssigneeCilag GmbH International
InventorsFrederick E. Shelton, IV, Jerome R. Morgan, Jason L. Harris, Gregory J. Bakos, Anil K. Nalagatla
Life of this patent
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Abstract
A method for manufacturing a surgical stapling anvil is disclosed. The method comprises the steps of manufacturing a first anvil member and a second anvil member. The first anvil member comprises a tissue-facing surface comprising a plurality of staple forming pockets defined therein and a longitudinal cavity comprising anvil ledges configured to be engaged by anvil-camming portions of a firing member of a surgical stapling instrument. The method further comprises the steps of polishing the ledges of the first anvil member and welding the first anvil member and the second anvil member together.
Claims17
A method for manufacturing a surgical stapling anvil, wherein said method comprises the steps of:
- manufacturing a first anvil member and a second anvil member, wherein:
- said first anvil member comprises:
- a tissue-facing surface comprising a plurality of staple forming pockets defined therein;
- a longitudinal cavity comprising first and second anvil-camming ledges configured to be engaged by anvil-camming portions of a firing member of a surgical stapling instrument;
- and
- first and second contact ledges;
- and
- said second anvil member comprises:
- third and fourth ledges;
- and
- first and second surfaces extending from and angled relative to said third and fourth ledges;
- polishing said first and second anvil-camming ledges of said first anvil member;
- positioning said third and fourth ledges on said first and second contact ledges;
- and
- welding said first anvil member and said second anvil member together along said first and second surfaces thereby forming a first weld and a second weld.
A method for manufacturing a surgical fastening anvil, wherein said method comprises the steps of:
- manufacturing an anvil body portion and an anvil cap member, wherein:
- said anvil body portion comprises:
- a planar tissue-facing surface comprising a plurality of fastener-forming pockets defined therein;
- first and second ledges each having a surface parallel to said planar tissue-facing surface;
- a longitudinal slot;
- and
- cam surfaces flanking said longitudinal slot and configured to be engaged by anvil-camming portions of a firing member of a surgical fastening instrument;
- and
- said anvil cap member comprises:
- third and fourth ledges each having a surface parallel to said planar tissue-facing surface;
- and
- first and second surfaces extending from said third and fourth ledges at an angle relative to said planar tissue-facing surface;
- polishing said cam surfaces of said anvil body portion;
- positioning said third and fourth ledges on said first and second ledges;
- and
- welding said anvil body portion and said anvil cap member together along said first and second surfaces.
Dependencies are inferred from the claim text.