SUPPLEMENTAL DEVICE FOR ATTACHMENT TO AN INJECTION DEVICE

摘要

A supplemental device (2) for attachment to an injection device (1) comprises: a display (21); a processor arrangement (24); a dose dialled detector (25) operable to detect a dose of medicament dialled into an attached injection device (1); a dose delivery determiner (27) for determining that a dose of medicament has been delivered (24, 25); a quantity determiner determining a quantity of medicament that has been delivered; and a clock configured to determine a current time. The processor arrangement (24) is configured when the supplemental device is in a default mode to display both a quantity of medicament that was delivered since a last dose and a time elapsed since delivery of the last dose.