SYRINGE WITH ELECTRONIC REPRESENTATION OF PARAMETERS

摘要

A syringe having a dose setting mechanism, a button which can be operated to inject a set dose, a switch operated at a time between the start and the completion of the injection and an electronic representation of parameters such as magnitudes of the set dose and the latest injected dose, which syringe further has a stop watch which is reset and started when the switch is operated. The status of the watch function is electronically represented and is together with the electronic represented parameters reproduced in a display showing the number of hours passed since the operation of the switch by switching on a corresponding number of 30~ segments of a circle. Dose sizes are shown by common Arabic numerals.