Abstract: This is a manual circular calculator for determining an appropriate insulin injection dosage to be taken with a meal. Preferably, the calculator has a pair of circular members which rotate around a single common center to allow calculation of the dosage. The front member includes a viewing panel showing an array of insulin injection dosage values that are printed on the rear circular member. The front member includes a series of measured blood glucose levels along a radius adjacent the viewing panel. The rear member typically has visible ingested carbohydrate values positioned along the outer perimeter of the member and, as noted above, a number of insulin injection dosage value arrays which become visible as one member is turned relative to the other. It is common that a physician would have a kit of these inventive devices, so that the appropriate one could be chosen depending on the insulin sensitivity, age, and size of the patient.

Abstract: A Biorythms analog computer-calendar is provided to display without computations the level of the physical, the emotional, and the intellectual biorythms of a human body. The level of the three biorythms appears on display in analog and digital forms for any dialed calendar date, if the computer-calendar is set initially with the individual's birth date. The analog elements used to register the three biorythm levels are drums attached to gears with a number of teeth equal or proportional to 23, 28 and 33, or to the period of the three biorythms respectively. A calendar arrangement is introduced to create a correlation between the displayed biorythm levels and the calendar date associated with them.