A surgical stapling device having an approximation mechanism for treating hollow tissue organs is provided. The stapling device includes a handle, a body portion extending distally from the handle, a distal head portion at a distal end of the body portion, and an approximation mechanism. The head portion...http://www.google.ca/patents/US8181840?utm_source=gb-gplus-sharePatent US8181840 - Tissue tensioner assembly and approximation mechanism for surgical stapling device
