Abstract: A device for securing a length of cannula tubing to facilitate the introduction of fluids into the tubing wherein a sleeve of flexible tubing is disposed between an entry passage for the cannula tubing and an opposing entry passage for communication with a source of fluid. Hinged jaw or wing members compress the flexible sleeve against the cannula tubing when it is placed therein thereby providing a fluid-tight and secure arrangement. In a preferred embodiment, a releasable snap-fit means is disposed on the wing members and tabular flange-like projections extend from the wings or jaws to facilitate the opening and closing of the jaw members.