Surgical stapling apparatus including an anvil and cartridge each having cooperating mating surfaces
First Claim
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1. A surgical stapling apparatus, comprising:
- an anvil having a working surface including a plurality of staple forming depressions formed therein, the working surface of the anvil including a pair of inclined wall portions extending along a length thereof and having a non-planar cross-sectional shape; and
a staple cartridge having a working surface in juxtaposition to the working surface of the anvil and including a plurality of staple retention slots formed therein, the working surface of the staple cartridge including a pair of inclined wall portions extending longitudinally along a length thereof and having a shape which complements the shape of the working surface of the anvil, such that as the anvil and staple cartridge are approximated relative to one another with tissue therebetween, the working surface of the anvil cooperates with the working surface of the staple cartridge to help align the plurality of staple forming depressions with the plurality of staple retention slots.
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Abstract
Surgical stapling apparatus are disclosed including an anvil having a working surface with a shaped topography; and a staple cartridge, in juxtaposition with the anvil. The staple cartridge includes a working surface with shaped topography which is complementary to the shaped topography of the working surface of the shaped anvil. When the anvil and the staple cartridge are approximated with or toward one another, at least a portion of the working surface of the anvil cooperates with at least a portion of the working surface of the staple cartridge to enhance alignment of the staple cartridge and the anvil in at least one of a transverse and longitudinal direction.
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Citations
10 Claims
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1. A surgical stapling apparatus, comprising:
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an anvil having a working surface including a plurality of staple forming depressions formed therein, the working surface of the anvil including a pair of inclined wall portions extending along a length thereof and having a non-planar cross-sectional shape; and
a staple cartridge having a working surface in juxtaposition to the working surface of the anvil and including a plurality of staple retention slots formed therein, the working surface of the staple cartridge including a pair of inclined wall portions extending longitudinally along a length thereof and having a shape which complements the shape of the working surface of the anvil, such that as the anvil and staple cartridge are approximated relative to one another with tissue therebetween, the working surface of the anvil cooperates with the working surface of the staple cartridge to help align the plurality of staple forming depressions with the plurality of staple retention slots.
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2. A surgical stapling apparatus, comprising:
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an anvil having a working surface with a shaped topography, the working surface including a pair of inclined wall portions extending along a length thereof and; and
a staple cartridge having a working surface in juxtaposition with the anvil, the working surface of the staple cartridge including a pair of inclined wall portions extending longitudinally along a length thereof and having a shaped topography which is complementary to the shaped topography of the working surface of the shaped anvil, such that as the anvil and the staple cartridge are approximated with one another with tissue therebetween, cooperation of at least a portion of the working surface of the anvil with at least a portion of the working surface of the staple cartridge enhances alignment of the staple cartridge and the anvil in at least one of a transverse and longitudinal direction.
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3. A surgical stapling apparatus, comprising:
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an anvil having a working surface including a plurality of staple forming depressions formed therein, the working surface of the anvil including a pair of inclined wall portions extending along a length thereof and having a non-planar cross-sectional shape; and
a staple cartridge having a working surface in juxtaposition to the working surface of the anvil and including a plurality of staple retention slots formed therein, the working surface of the staple cartridge including a pair of inclined wall portions extending longitudinally along a length thereof and having a shape which complements the shape of the working surface of the anvil, such that when the anvil and staple cartridge are approximated relative to one another the working surface of the anvil cooperates with the working surface of the staple cartridge to help align the plurality of staple forming depressions with the plurality of staple retention slots. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
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Specification