BUTTRESS AND SURGICAL STAPLING APPARATUS
3 Assignments
0 Petitions
Accused Products
Abstract
Multilayer structures including a porous layer and a non-porous layer are useful as buttresses when associated with a surgical stapling apparatus.
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Citations
51 Claims
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1-35. -35. (canceled)
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36. A surgical stapling apparatus comprising:
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a staple cartridge containing at least one staple; an anvil having a staple forming surface; and a buttress positioned adjacent the anvil or the cartridge, the buttress comprising a non-porous layer disposed between first and second porous layers and a reinforcement member positioned within the non-porous layer, wherein pores of the porous layers do not span across the entire thickness of the porous layers. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A surgical stapling apparatus comprising:
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a staple cartridge containing at least one staple; an anvil having a staple forming surface; and a buttress positioned adjacent the anvil or the cartridge, the buttress comprising a non-porous layer disposed between first and second porous layers, and a reinforcement member positioned within the non-porous layer, wherein the reinforcement member comprises chopped fibers and wherein pores of the porous layers do not span across the entire thickness of the porous layers.
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51. A method of sealing a wound comprising:
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enclosing tissue between a cartridge and an anvil of a surgical stapling apparatus, one of the cartridge or anvil having a buttress positioned adjacent thereto, the buttress comprising a non-porous layer disposed between first and second porous layers having pores which do not span across the entire thickness of the porous layers, and a reinforcement member positioned within the non-porous layer; and ejecting staples from said cartridge to secure the buttress to the tissue.
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Specification