A device and method for preventing an occlusion of a catheter including a catheter adapter and a catheter where a flexured portion of the catheter is supported by a bending surface of the catheter adapter. The flexured portion of the catheter may also include a maximum insertion length mark and/or a flexible support member to support and strengthen the flexured portion of the catheter against occlusions. A bending surface is provided over which a flexured portion of the catheter may gently bend to accommodate the transition of the catheter from the catheter adapter to the insertion site without occluding the catheter.
