Abstract: A flexible clamp for IV tubing, and in particular for use in a free flow prevention system. The flexible clamp has a pair of generally elongate clamping arms defining a slot for receiving the IV tubing. The flexible clamp has a resilient bias tending to bring the clamping arms to a closed position wherein the IV tubing is squeezed between the clamping arms to close the lumen of the IV tubing to prevent fluid flow, and the clamping arms are movable against the resilient bias of the flexible clamp to an open position wherein the clamping arms are spread from one another relative to the closed position such that the lumen of the IV tubing is allowed to open so that flow through the lumen of the IV tubing is permitted.

Abstract: A free flow prevention system for preventing free flow of fluid through IV tubing when the tubing is disconnected from an infusion pump. A flexible clamp is provided having a pair of clamping arms, which define a variable width slot for receiving the IV tubing. The IV tubing may be moved along the slot between a first position wherein the width of the slot is sufficient to permit the clamp to be positioned longitudinally along the IV tubing, and a second position wherein the width of the slot is normally less than the width of the slot at the first position. The clamping arms are resiliently biased to a closed position wherein the IV tubing is squeezed when in its second position to close the lumen to prevent fluid flow. A clamp-receiving passageway and clamp-opening wedge are provided on the infusion pump.

Abstract: The system includes a multi-track tape player with a set of head phones which are connected to the audio output of the player and are located in a history-taking booth for use by a patient. A two-track tape is mounted in the tape player and includes a first track having a plurality of questions recorded thereon in a predetermined sequence and a second track having a plurality of code signals recorded thereon, each code signal identifying a particular question recorded on the first track. A patient viewing and response device is located in the booth and includes a keyboard response panel and scale models of the human body adapted to depict typical pain or discomfort patterns. The patient response device is selectively operable by a patient for giving one of several predetermined answers to each question audibly presented to the patient. The device and the player are connected to a computer which controls the audio presentation of the successive questions relative to the answers given to previous questions.