Abstract: A ripple down rules knowledge based system for generating an output conclusion in response to an input case, the system including a database arranged to receive and store a plurality of conclusions and a plurality of rules, each new conclusion added to the database being associated with a previously stored conclusion as a refinement of the previously stored conclusion and each new conclusion added to the database being associated with a rule, input mechanism for facilitating input of a case, and output mechanism for outputting at least one previously stored conclusion in response to the input case, the system being arranged such that when multiple identical conclusions are returned by the system in response to an input case and a new conclusion associated with the input case is added as a refinement of the identical conclusions, a list of cornerstone conflict cases associated with all of the identical conclusions is generated, and the system being arranged to receive an input rule indicative of a difference b

Abstract: There is provided an apparatus to improve control of blood sugars in diabetics. The apparatus comprises an infusion means and a control means which controls the infusion rate of one or more diabetics control liquids. The control means comprises a basal rate means to control infusion of the liquid according to an assessed basal metabolic requirement and a non-basal rate means to control infusion of the liquid at one or more levels of metabolic activity. The control means is preferably adapted to receive patient data to vary the infusion of the liquid accordingly.