Apparatus having user input device with changeable indicia

摘要

An apparatus, such as a medical equipment product, has an integral user input device with a plurality of manually actuatable keys representing a predetermined item of data or function specific to the associated product. The data is entered or function carried out by actuating the keys of the device. Visually perceptible indicia are associated with a selected plurality of the keys that are indicative of the item of data or function represented by the keys. E-ink may be used for to form the indicia. The visually perceptible indicia for the keys are established in a given language and can be altered from those of the given language to those in another language. This permits operation of the product with keys labeled in differing languages. The user input device may also have status indicators for the apparatus and/or input device with changeable indicia.