A mechanically operated medical infusion device with a dose counter is disclosed herein. The infusion device includes a pump and at least one mechanical activation mechanism for mechanically engaging the pump to deliver a dose of medicament to cause a dose event. The dose counter includes a sensor for detecting a vibration signature indicative of the dose event and a micro-controller for recording the dose event.本文揭露一具有一劑量計數器之一機械操作之醫療輸液裝置。該輸液裝置包含一泵及至少一機械式啟動機構,該機械式啟動機構用於機械嚙合該泵以輸送一劑量之藥物以引發一劑量事件。該劑量計數器包括一感測器及一微控制器,該感測器用於偵測指示該劑量事件之一震動特徵,而該微控制器用於紀錄該劑量事件。