Patent ID: 8052599

Claim:
An endorectal trocar provided with: a—a body ( 1 ) for endorectal introduction that defines an open internal channel ( 21 ), and b—a leak-tight barrier ( 2 ) that extends across the internal channel ( 21 ) and exhibits passageways ( 9 , 10 , 11 , 12 ) for engaging rectoscopy instruments, wherein the body ( 1 ) and the leak-tight barrier ( 2 ) are two distinct assemblies that can be attached by fixing means ( 6 ) at the internal channel ( 21 ), wherein the leak-tight barrier is arranged substantially at mid length of the internal channel according to a mobile assembly, wherein the leak-tight barrier comprises a driving surface ( 8 ) configured to accept a handling means of the leak-tight barrier ( 2 ) from outside the internal channel ( 21 ), said handling means being configured in the form a handle ( 13 ) with arms ( 15 ) to cooperate with the driving surface ( 8 ) of the leak-tight barrier, and wherein the positioning or removal of the leak-tight barrier is performed by an additional rotation operation of the leak-tight barrier with respect to the body ( 1 ).