FASTENER CARTRIDGES INCLUDING EXTENSIONS HAVING DIFFERENT CONFIGURATIONS
First Claim
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1. A fastening instrument for fastening tissue, comprising:
- a longitudinal instrument axis;
a cartridge body, comprising;
a deck; and
fastener cavities extending along a curved fastener line which curves relative to said longitudinal instrument axis, wherein each said fastener cavity comprises an opening in said deck, and wherein each said opening defines a cavity axis;
fasteners removably stored in said fastener cavities;
a plurality of first extensions extending from said deck, wherein each said first extension is at least partially positioned along a said cavity axis, and wherein each said first extension comprises a first shape;
a plurality of second extensions extending from said deck, wherein each said second extension is at least partially positioned along a said cavity axis, and wherein each said second extension comprises a second shape that is different than said first shape; and
an anvil configured to deform said staples.
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Abstract
A fastener cartridge can include, one, a cartridge body comprising a deck and a plurality of fastener cavities and, two, a plurality of fasteners positioned in the fastener cavities. The cartridge body can further comprise extensions extending from the deck having different sizes and/or configurations. The extensions can control the flow of tissue relative to the deck and/or support the fasteners as they are ejected from the fastener cavities.
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Citations
16 Claims
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1. A fastening instrument for fastening tissue, comprising:
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a longitudinal instrument axis; a cartridge body, comprising; a deck; and fastener cavities extending along a curved fastener line which curves relative to said longitudinal instrument axis, wherein each said fastener cavity comprises an opening in said deck, and wherein each said opening defines a cavity axis; fasteners removably stored in said fastener cavities; a plurality of first extensions extending from said deck, wherein each said first extension is at least partially positioned along a said cavity axis, and wherein each said first extension comprises a first shape; a plurality of second extensions extending from said deck, wherein each said second extension is at least partially positioned along a said cavity axis, and wherein each said second extension comprises a second shape that is different than said first shape; and an anvil configured to deform said staples. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A stapling instrument for stapling tissue, comprising:
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a shaft comprising a longitudinal axis; a cartridge body, comprising; a deck; and staple cavities arranged in a curved staple line, wherein each said staple cavity comprises an opening in said deck, and wherein each said cavity defines a cavity axis which is transverse to said longitudinal axis; staples removably stored in said staple cavities; first extensions extending from said deck, wherein each said first extension is at least partially positioned along a said cavity axis; second extensions extending from said deck, wherein each said second extension is at least partially positioned along a said cavity axis, and wherein said first extensions and said second extensions create distinct tissue compression zones; and an anvil configured to deform said staples. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A stapling instrument for stapling tissue, comprising:
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a shaft comprising a longitudinal axis; a cartridge body, comprising; a deck; and staple cavities, wherein each said staple cavity comprises an opening in said deck; staples removably stored in said staple cavities; first projections extending from said deck, wherein said first projections are defined by a first height; second projections extending from said deck, wherein each said first projection forms an axis with a said second projection which is co-extensive with a said cavity opening and is transverse to said longitudinal axis, wherein said second projections are defined by a second height, and wherein said first projections and said second projections create distinct tissue compression zones; and an anvil configured to deform said staples. - View Dependent Claims (14, 15, 16)
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Specification