| abstract |
The present invention relates to a lancet device 2 which is attached to a puncture device and is used for piercing a target site, and which retains a lancet 4 having a puncture needle in an internal space 35 of a casing 3. The casing 3 has a visible region 36 through which a leading end of the lancet 4 is visually recognizable. The casing 3 comprises, for example, a main body 30 which has the internal space 35, and a cover 31 which covers a part of the internal space 35. The visible region 36 has an opened part in the internals space 35 which is not covered by the cover 31 and is adjacent to the cover 31. |