Abstract: A cassette with free-flow prevention for use with an ambulatory pump. The cassette includes a free-flow prevention device and a housing. The housing is configured to receive the free-flow prevention device through press-fit insertion to facilitate manufacturing. The housing includes an external face, a press plate coupled to the external face, a lever arm retention system to retain the free-flow prevention device, and vertical sidewalls extending from the external face. The housing additionally includes cutouts in the external face adjacent the vertical sidewalls that permit outward bending of the vertical side walls during press-fit insertion of the free-flow prevention device in a direction perpendicular to the press plate.

Abstract: A cassette with free flow prevention for use with an ambulatory pump. The cassette includes a free flow prevention clamp and a housing. The free flow prevention clamp includes a clamping section having a first clamp side and a second clamp side. The housing supports the free flow prevention clamp and defines a channel for receiving a tube. The first and second clamp sides extend parallel to the channel and the clamping section extends across the channel. The free flow prevention clamp is configurable within the housing via an actuator assembly in an open condition that allows fluid flow through the tube when force is applied to the clamping section and in a closed condition that prevents fluid flow through the tube when the force is removed from the clamping section.

Abstract: Uniform and concentrated radio broadcast signals are obtained employing an antenna structure which uses separate antenna conductors on opposite sides of a radio reception area. The antenna conductors perform similarly to the plates of a capacitor. Highly efficient antenna performance results. In a preferred embodiment wherein the antennas are used for radio testing inside a vehicle assembly plant, the track or carrier structure of the vehicle assembly line provides one of the antenna conductors.