| abstract |
(57) [Summary] [PROBLEMS] To prevent a lancet from penetrating a plurality of times when firing a lancet (14) to collect blood. SOLUTION: A lancet having a piercing element (44) is loaded into a lancet holder (36), and the lancet holder is advanced to cause the piercing element of the lancet to penetrate a target site, and then the lancet holder is retracted. Thus, the lancet firing device 10 configured using the two spring means (16, 18) moves the lancet holder forward for piercing so that the piercing element of the lancet is extracted from the target site and retracted. The lancet holder further includes a brake member (50) that allows the lancet holder to advance and the piercing element to initially penetrate the target site, while providing resistance to the advancing lancet holder. |