A blood lancing device has a housing, a lancet holder and at least a sliding rail. The lancet holder is movably disposed in the housing and defines at least a through hole. The sliding rail is fixed in the housing and threads through the through hole so that the lancet holder is capable of moving along the sliding rail.一種採血裝置其包含一外殼、一針座以及至少一滑軌。針座可移動地設於外殼內並定義有至少一貫穿孔。滑軌固定於外殼內並貫穿於貫穿孔,使針座能夠沿滑軌移動。111...第一檔板111a...第一檔板112...第二檔板3...緩衝彈簧4...針座41...第一側翼42...第二側翼44...本體5...滑軌5a...滑軌6...彈簧7...推動結構71...推動鍵72...抵壓部
