The Flanged Cannula C313GFL is our new and uniquely designed cannula that allows the researcher numerous mounting options. This cannula was originally designed to eliminate the need for cranioplastic cement by placing screws directly into the holes of the cannula flange. Alternatively, those same holes can also be used to suture the cannula into a backmounted position. The cannula can be straight or bent to 90 degrees to meet the researcher's needs. We offer these in different sizes to fit a variety of research models.