The present invention includes a tool assembly with a first jaw movable in relation to a second jaw between a spaced position and an approximated position. An approximation member is movable in relation to the first jaw to effect movement of the first and second jaws from the spaced position to the approximated...http://www.google.ca/patents/US7617961?utm_source=gb-gplus-sharePatent US7617961 - Tool assembly for surgical stapling device
