Abstract: The present invention provides an apparatus, a method, and a system with which a user can easily and precisely select unlimited displaying data and enter text information on a touch screen with a small dimension. The user touch screen interface device comprises a first member, a selection member, an actuation member, and a detent mechanism. Means to response to selection and actuation of stored application data are also disclosed.

Abstract: The present invention provides an infusion pump control system comprises a plurality of computing components positioned on discrete hardware modules to complete an infusion task. Those discrete processors, which are internally redundant and communicate through a common medium that provides for redundancy of the communication ability to react to internal failures in a known manner, implement capabilities specific to infusion pump functions, to complete an infusion task. Also, this invention provides automatically switchable redundant power supplies and a new mechanism for firmware provisioning using multi-dropped JTAG for a plurality of computing components.