Surgical stapling system comprising a spent cartridge lockout
First Claim
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1. A stapling assembly, comprising:
- a shaft comprising a shaft frame;
a staple cartridge attachable to said shaft frame, wherein said staple cartridge comprises;
a circular cartridge body;
staple cavities arranged in a circular array in said circular cartridge body; and
staples removable stored in said staple cavities;
a staple driver configured to eject said staples from said staple cavities, wherein said staple driver comprises a lock;
an anvil configured to deform said staples; and
a rotatable firing shaft operably engaged with said staple driver, wherein said firing shaft is rotatable in a first direction and a second direction, wherein said firing shaft is configured to move said staple driver toward said anvil when said firing shaft is rotated in said first direction, wherein said firing shaft is configured to retract said staple driver away from said anvil when said firing shaft is rotated in said second direction, wherein said lock is configured to engage said shaft frame when said staple driver is retracted by said firing shaft, and wherein said lock is configured to prevent said firing shaft from rotating in said first direction once said lock is engaged with said shaft frame.
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Abstract
A circular stapling instrument is disclosed which comprises a replaceable staple cartridge. The circular stapling instrument and/or staple cartridge comprises a lockout configured to prevent a previously-fired staple cartridge from being re-used.
2999 Citations
20 Claims
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1. A stapling assembly, comprising:
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a shaft comprising a shaft frame; a staple cartridge attachable to said shaft frame, wherein said staple cartridge comprises; a circular cartridge body; staple cavities arranged in a circular array in said circular cartridge body; and staples removable stored in said staple cavities; a staple driver configured to eject said staples from said staple cavities, wherein said staple driver comprises a lock; an anvil configured to deform said staples; and a rotatable firing shaft operably engaged with said staple driver, wherein said firing shaft is rotatable in a first direction and a second direction, wherein said firing shaft is configured to move said staple driver toward said anvil when said firing shaft is rotated in said first direction, wherein said firing shaft is configured to retract said staple driver away from said anvil when said firing shaft is rotated in said second direction, wherein said lock is configured to engage said shaft frame when said staple driver is retracted by said firing shaft, and wherein said lock is configured to prevent said firing shaft from rotating in said first direction once said lock is engaged with said shaft frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A staple cartridge for use with a surgical stapling instrument having an anvil, said staple cartridge comprising:
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a frame; a circular cartridge body; staple cavities arranged in a circular array in said circular cartridge body; staples removable stored in said staple cavities; a staple driver configured to eject said staples from said staple cavities, wherein said staple driver comprises a lock; and a rotatable firing shaft operably engaged with said staple driver, wherein said firing shaft is rotatable in a first direction and a second direction, wherein said firing shaft is configured to move said staple driver toward the anvil when said firing shaft is rotated in said first direction, wherein said firing shaft is configured to retract said staple driver away from the anvil when said firing shaft is rotated in said second direction, wherein said lock is configured to engage said frame when said staple driver is retracted by said firing shaft, and wherein said lock is configured to prevent said firing shaft from rotating in said first direction once said lock is engaged with said frame. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A staple cartridge for use with a surgical stapling instrument having an anvil, said staple cartridge comprising:
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a frame; a circular cartridge body; staple cavities arranged in a circular array in said circular cartridge body; staples removable stored in said staple cavities; a staple driver configured to eject said staples from said staple cavities; a firing member operably engaged with said staple driver, wherein said firing member is movable in a first direction and a second direction, wherein said firing member is configured to move said staple driver toward the anvil when said firing member is moved in said first direction, wherein said firing member is configured to retract said staple driver away from the anvil when said firing member is moved in said second direction; and a firing member lockout, wherein said lockout is configured to couple said firing member and said frame when said staple driver is retracted by said firing member, and wherein said lockout is configured to prevent said firing member from moving in said first direction once said lockout has coupled said firing member and said frame. - View Dependent Claims (18, 19, 20)
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Specification