The present disclosure relates to button-activated medicament delivery device (1) comprising a housing arranged to house a medicament container, a vibration sensor (5) configured to measure vibrations induced by the button-activated medicament delivery device (1) during a medicament delivery, a button (3) arranged to initiate medicament delivery from the medicament container, and to activate the vibration sensor (5) when initiating the medicament delivery, and processing circuitry (7) configured to obtain a vibration measurement from the vibration sensor (5) and to compare the vibration measurement with a reference vibration measurement characteristic for the button-activated medicament delivery device (1) during medicament delivery. The processing circuitry (7) is configured to generate a time of measurement of the vibration measurement in case the vibration measurement matches the reference vibration measurement.本揭示內容有關按鈕啟動式藥物輸送裝置(1),包含外殼,被配置成容置藥物容器;振動感測器(5),被建構來測量藉由該按鈕啟動式藥物輸送裝置(1)於藥物輸送期間所造成之振動;按鈕(3),被配置來由該藥物容器開始藥物輸送,並當開始該藥物輸送時啟動該振動感測器(5);及處理電路系統(7),被建構來由該振動感測器(5)獲得振動測量,且在藥物輸送期間比較該振動測量與用於該按鈕啟動藥物輸送裝置(1)的參考振動測量特徵。如果該振動測量匹配該參考振動測量,則該處理電路系統(7)被建構來產生該振動測量之測量時間。1‧‧‧藥物輸送裝置3‧‧‧按鈕5‧‧‧振動感測器7‧‧‧處理電路系統9‧‧‧儲存單元11‧‧‧發射器13‧‧‧啟動開關15‧‧‧能量儲存單元
