Circular stapling instruments for cutting and applying one or more surgical staples to tissue are disclosed. The instruments include various forms of anvil locking systems designed to selectively prevent the anvil from moving axially relative to the stapling head of the stapling instrument. One embodiment...http://www.google.fr/patents/US8066167?utm_source=gb-gplus-shareBrevet US8066167 - Circular surgical stapling instrument with anvil locking system
Circular surgical stapling instrument with anvil locking system
