The present disclosure relates to a medicament delivery device (1) comprising: a main housing (3) arranged to accommodate a medicament container, an activation button (5) linearly displaceable from a first position relative to the main housing (3) to a second position, whereby a medicament administration procedure for expulsion of medicament from the medicament container is initiated, a first sensor (15) arranged to detect a medicament administration procedure initiated by the activation button (5), a storage unit (19) containing remaining dose data, and processing circuitry configured to update the remaining dose data based on detection of a medicament administration procedure by the first sensor (15), wherein the medicament delivery device (1) is arranged to enable presentation of the remaining dose data.本揭示內容有關藥物輸送裝置(1),包含:主要外殼(3),被配置來容納藥物容器;啟動按鈕(15),可由第一位置相對該主要外殼(3)線性地位移至第二位置,由此用於由該藥物容器排出藥物之藥物施用程序被開始;第一感測器(15),被配置來偵測藉由該啟動按鈕(5)所開始的藥物施用程序;儲存單元(19),含有剩餘劑量資料;及處理電路系統,被建構來基於藉由該第一感測器(15)偵測藥物施用程序而更新該剩餘劑量資料;其中該藥物輸送裝置(1)被配置成能夠使該剩餘劑量資料呈現。1‧‧‧藥物輸送裝置3‧‧‧主要外殼3b‧‧‧近側端5‧‧‧啟動按鈕5a‧‧‧舌片9‧‧‧顯示器13‧‧‧釋放機制15‧‧‧第一感測器
