End effector layer including holding features

摘要

An end effector is disclosed which comprises a first jaw, a second jaw, a staple cartridge, an anvil, and at least one layer positioned intermediate the first jaw and the second jaw. The layer may include a pattern of holding features defined on a tissue contacting surface of the layer. The pattern of holding features can extend between a proximal end of the layer and a distal end of the layer. The pattern of holding features may be defined by a network of interconnected channels skew to a longitudinal axis of the layer. The network of interconnected channels may be configured to mitigate and/or control the flow of patient tissue relative to the layer.

主权项

1. An end effector, comprising:
a first jaw including a staple cartridge; a second jaw including an anvil, wherein at least one of said first jaw and said second jaw is movable to compress tissue between said staple cartridge and said anvil; a first layer removably attached to said staple cartridge, wherein said first layer includes a proximal end, a distal end, a longitudinal axis, and a tissue contact surface, and wherein said first layer is intermediate said first jaw and the tissue; a first pattern of holding features covering said tissue contact surface of said first layer from said proximal end to said distal end, wherein said first pattern of holding features is defined by a first network of interconnected channels skew to said longitudinal axis of said first layer, and wherein said first network of interconnected channels is configured to mitigate flow of the tissue relative to said first layer; a second layer removably attached to said anvil, wherein said second layer includes a proximal end, a distal end, a longitudinal axis, and a tissue contact surface, and wherein said second layer is intermediate said second jaw and the tissue; and a second pattern of holding features covering said tissue contact surface of said second layer from said proximal end to said distal end, wherein said second pattern of holding features is defined by a second network of interconnected channels skew to said longitudinal axis of said second layer, and wherein said second network of interconnected channels is configured to mitigate flow of the tissue relative to said second layer.