Closure systems for a surgical cutting and stapling instrument
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United States of America Patent
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Jun 14, 2011
Grant Date -
Aug 20, 2009
app pub date -
Feb 15, 2008
filing date -
Feb 15, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A surgical stapling instrument including an actuator configured to be retracted relative to the distal end of the disposable loading unit and rotate an anvil between an open position and a closed position. The actuator can include a cam, where the cam can include an arcuate profile having an apex configured to be in contact with the anvil when the anvil is in a closed position. In at least one such embodiment, the anvil can apply a clamping force to the soft tissue prior to the staples being deployed to prevent, or at least inhibit, soft tissue from flowing, or ‘milking’, out of the distal end of the disposable loading unit. In various embodiments, a surgical stapling instrument can include a disposable loading unit having an anvil which can be moved between open, closed, and/or collapsed positions to facilitate the insertion of the disposable loading unit through a trocar.
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