Fastener cartridge assembly comprising a driver row arrangement
First Claim
1. An end effector for a surgical fastening instrument, said end effector comprising:
- a frame;
a proximal portion;
a distal portion;
a first jaw, comprising;
a plurality of fastener cavities;
a first longitudinal slot configured to receive a cutting member;
a first longitudinal row of first fasteners removably stored in said first jaw, wherein said first longitudinal row of first fasteners extends between said proximal portion and said distal portion alongside said first longitudinal slot, and wherein each said first fastener comprises;
a base;
a first leg extending from said base in a first direction; and
a second leg extending from said base in a second direction, wherein said first direction is not parallel to said second direction; and
a second longitudinal row of second fasteners removably stored in said first jaw, wherein said second longitudinal row of second fasteners extends between said proximal portion and said distal portion alongside said first longitudinal row of first fasteners;
a second jaw extending fixedly from said frame, wherein said second jaw comprises an anvil configured to deform said fasteners, and wherein said anvil comprises a plurality of forming pockets;
a firing member movable longitudinally toward said distal portion, wherein said firing member comprises a first portion configured to engage said first jaw and a second portion configured to engage said second jaw, wherein said second portion comprises a pin extending laterally therefrom, wherein said second jaw comprises a second longitudinal slot comprising a T-shaped opening configured to receive said pin of said firing member, and wherein said T-shaped opening extends behind said forming pockets corresponding to said first longitudinal row of first fasteners; and
a fastener driver, wherein said fastener driver supports a first fastener from said first longitudinal row and a second fastener from said second longitudinal row, wherein said first fastener is positioned distally with respect to said second fastener, wherein said firing member is configured to lift said fastener driver toward said anvil, wherein said fastener driver and said anvil are configured to co-operate to deform said first fastener to a first fired height and to deform said second fastener to a second fired height, and wherein said first fired height is shorter than said second fired height to provide a smaller tissue compression space within said first fastener than said second fastener.
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0 Petitions
Accused Products
Abstract
An end effector comprising a frame, a proximal portion, a distal end portion, a first jaw, a plurality of staple cavities, a first slot, a first longitudinal row of first staples, a second longitudinal row of second staples, a second jaw, an anvil, a staple driver, and a firing member is disclosed. The staple driver supports a first staple removably stored in the first longitudinal row and a second staple removably stored in the second longitudinal row. The staple driver and the anvil are configured to co-operate to deform the first staple to a first fired height and to deform the second staple to a second fired height. The tissue is compressed more in the first longitudinal row of first staples than the tissue in the second longitudinal row of second staples.
4015 Citations
15 Claims
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1. An end effector for a surgical fastening instrument, said end effector comprising:
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a frame; a proximal portion; a distal portion; a first jaw, comprising; a plurality of fastener cavities; a first longitudinal slot configured to receive a cutting member; a first longitudinal row of first fasteners removably stored in said first jaw, wherein said first longitudinal row of first fasteners extends between said proximal portion and said distal portion alongside said first longitudinal slot, and wherein each said first fastener comprises; a base; a first leg extending from said base in a first direction; and a second leg extending from said base in a second direction, wherein said first direction is not parallel to said second direction; and a second longitudinal row of second fasteners removably stored in said first jaw, wherein said second longitudinal row of second fasteners extends between said proximal portion and said distal portion alongside said first longitudinal row of first fasteners; a second jaw extending fixedly from said frame, wherein said second jaw comprises an anvil configured to deform said fasteners, and wherein said anvil comprises a plurality of forming pockets; a firing member movable longitudinally toward said distal portion, wherein said firing member comprises a first portion configured to engage said first jaw and a second portion configured to engage said second jaw, wherein said second portion comprises a pin extending laterally therefrom, wherein said second jaw comprises a second longitudinal slot comprising a T-shaped opening configured to receive said pin of said firing member, and wherein said T-shaped opening extends behind said forming pockets corresponding to said first longitudinal row of first fasteners; and a fastener driver, wherein said fastener driver supports a first fastener from said first longitudinal row and a second fastener from said second longitudinal row, wherein said first fastener is positioned distally with respect to said second fastener, wherein said firing member is configured to lift said fastener driver toward said anvil, wherein said fastener driver and said anvil are configured to co-operate to deform said first fastener to a first fired height and to deform said second fastener to a second fired height, and wherein said first fired height is shorter than said second fired height to provide a smaller tissue compression space within said first fastener than said second fastener. - View Dependent Claims (2, 3, 4, 5)
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6. An end effector for a surgical fastening instrument, said end effector comprising:
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a frame; a proximal portion; a distal end portion; a first jaw; a plurality of fastener cavities; a first longitudinal slot configured to receive a cutting member; a longitudinal row of first fasteners extending between said proximal portion and said distal end portion alongside said first longitudinal slot, wherein each said first fastener comprises; a base; a first leg extending from said base in a first direction; and a second leg extending from said base in a second direction, wherein said first direction is not parallel to said second direction; a longitudinal row of second fasteners extending between said proximal portion and said distal end portion alongside said row of first fasteners; a second jaw extending fixedly from said frame; an anvil configured to deform said fasteners, wherein said anvil comprises forming pockets; a firing member movable longitudinally toward said distal end portion, wherein said firing member comprises a first portion configured to extend through said first longitudinal slot and a second portion configured to engage said anvil, wherein said anvil further comprises a second longitudinal slot including a lateral portion extending at least partially behind a first longitudinal row of said forming pockets, and wherein said second portion of said firing member comprises a cam configured to be received within said lateral portion; and a fastener driver, wherein said fastener driver supports a first fastener from said longitudinal row of first fasteners and a second fastener from said longitudinal row of second fasteners, wherein said first fastener is positioned distally with respect to said second fastener, wherein said firing member is configured to lift said fastener driver toward said anvil, wherein said fastener driver and said anvil are configured to co-operate to deform said first fastener to a first fired height and to deform said second fastener to a second fired height, and wherein said first fired height is shorter than said second fired height to provide a smaller tissue clamping area within said first fastener than said second fastener. - View Dependent Claims (7, 8, 9, 10)
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11. An end effector for a surgical stapling instrument configured to fasten and incise the tissue of a patient, said end effector comprising:
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a frame; a proximal portion; a distal end portion; a first jaw; a plurality of staple cavities; a first slot configured to receive a cutting member; a first longitudinal row of first staples extending between said proximal portion and said distal end portion alongside said first slot, wherein each said first staple comprises; a base; a first leg extending from said base in a first direction; and a second leg extending from said base in a second direction, wherein said first direction is not parallel to said second direction; a second longitudinal row of second staples extending between said proximal portion and said distal end portion alongside said first longitudinal row of first staples; a second jaw extending fixedly from said frame; an anvil configured to deform said staples, wherein said anvil comprises forming pockets; a staple driver movable toward said anvil, wherein said staple driver supports a first staple removably stored in said first longitudinal row and a second staple removably stored in said second longitudinal row, wherein said first staple is positioned distally with respect to said second staple, wherein said staple driver and said anvil are configured to co-operate to deform said first staple to a first fired height and to deform said second staple to a second fired height, wherein said first fired height is shorter than said second fired height, and wherein the tissue is compressed more in said first longitudinal row of first staples than the tissue in said second longitudinal row of second staples; and a firing member comprising a first portion configured to extend through said first slot and a second portion configured to engage said anvil, wherein said anvil further comprises a second slot including a lateral portion extending behind a longitudinal row of said forming pockets, and wherein said second portion of said firing member comprises a camming member configured to engage said lateral portion. - View Dependent Claims (12, 13, 14, 15)
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Specification