The present invention relates to a lancing device structure, which comprises a main body and a bore seat that are elastically disposed and retracted. The bore seat is provided for disposing the lancet. The interior of the main body has a first positioning point for positioning the bore seat at the position to strike and a second positioning point after striking. During the process for mounting the lancet, the bore seat may be simultaneously engaged at the first positioning point, so as to increase the pre-processing speed for glucose screening test.本發明係關於一種採血筆結構,其係具有彈性伸縮設置之主體及膛座,其膛座係供採血針設置,且主體內部具有定位膛座為待擊發位置之第一定位點,及擊發後之第二定位點,且採血針於裝設過程中,係得同步將膛座一併卡定於第一定位點;如此,以提升血糖篩檢的前置作業速度。1‧‧‧主體11‧‧‧第一定位點12‧‧‧第二定位點13‧‧‧導軌15‧‧‧復位彈簧16‧‧‧內套環161‧‧‧導引軌道2‧‧‧外蓋21‧‧‧出針口3‧‧‧膛座31‧‧‧套口311‧‧‧應變槽32‧‧‧彈片33‧‧‧內槽34‧‧‧拉桿35‧‧‧凸肋4‧‧‧擊發彈簧5‧‧‧按鈕51‧‧‧釋放端52‧‧‧推動段
