Surgical stapling device for performing circular anastomosis and surgical staples for use therewith
First Claim
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1. A surgical stapler, comprising:
- a handle assembly including a stationary handle, an approximation mechanism, and a firing trigger for firing a plurality of surgical fasteners; and
an end effector supported on a distal end of the handle assembly, the end effector including;
a circular anvil assembly, including;
an anvil center rod having a proximal end configured for selective connection to the approximation mechanism and a distal end, the center rod defining a central longitudinal axis; and
an anvil head secured to the distal end of the anvil center rod, the anvil head including;
an anvil plate defining a tissue contact surface; and
at least two annular rows of a plurality of staple forming pockets formed in the tissue contact surface of the anvil plate, wherein each of the plurality of staple forming pockets has a curved length, the length of each staple forming pocket of a relatively inner annular row of staple forming pockets of the anvil assembly being relatively shorter than the length of each staple forming pocket of a relatively outer annular row of staple forming pockets of the anvil assembly; and
a circular staple cartridge assembly defining at least two rows of a plurality of staple retaining slots corresponding to a number of staple forming pockets of the anvil assembly, the staple cartridge assembly including a plurality of surgical staples supported therein in a spaced relation to each other.
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Abstract
The present disclosure relates to an anvil assembly, an end effector and/or a surgical stapler suitable for performing curved or circular anastomosis and/or treatment to internal walls of hollow tissue organs wherein the anvil assembly includes an anvil center rod having a proximal end and a distal end, the center rod defining a central longitudinal axis; and an anvil head secured to the distal end of the anvil center rod. The anvil head includes an anvil plate defining a tissue contact surface; and a plurality of staple forming pockets formed in the tissue contact surface of the anvil plate, wherein each of the plurality of staple pockets defines an arcuate longitudinal axis.
832 Citations
24 Claims
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1. A surgical stapler, comprising:
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a handle assembly including a stationary handle, an approximation mechanism, and a firing trigger for firing a plurality of surgical fasteners; and an end effector supported on a distal end of the handle assembly, the end effector including; a circular anvil assembly, including; an anvil center rod having a proximal end configured for selective connection to the approximation mechanism and a distal end, the center rod defining a central longitudinal axis; and an anvil head secured to the distal end of the anvil center rod, the anvil head including; an anvil plate defining a tissue contact surface; and at least two annular rows of a plurality of staple forming pockets formed in the tissue contact surface of the anvil plate, wherein each of the plurality of staple forming pockets has a curved length, the length of each staple forming pocket of a relatively inner annular row of staple forming pockets of the anvil assembly being relatively shorter than the length of each staple forming pocket of a relatively outer annular row of staple forming pockets of the anvil assembly; and a circular staple cartridge assembly defining at least two rows of a plurality of staple retaining slots corresponding to a number of staple forming pockets of the anvil assembly, the staple cartridge assembly including a plurality of surgical staples supported therein in a spaced relation to each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification