| 摘要 |
The blood collecting device of this invention comprises a blood collecting tube whose open end is sealed by a sealing member, a sticker needle having a needle tube consisting of a blood collecting needle part projecting to one direction and a hollow needle part projecting in the other direction and a flexible sheath covering the hollow needle part and a blood collecting tube holder as a hollow member whose rear end is open and to which the sticker needle is fitted. The blood collecting tube can be inserted into the blood collecting tube holder without substantially coming into contact with the inner surface of the latter. Furthermore, the blood collecting tube holder and the blood collecting tube are provided with a pair of anchor means meshing with each other while the sealing member of the blood collecting tube inserted into the blood collecting tube holder is being stuck by the hollow needle and having anchor force exceeding the repulsive force of the flexible sheath when the sheath is compressed by the sealing member of the blood collecting tube in the axial direction. Thus, the blood collecting tube can be inserted easily into the blood collecting tube holder and fall-off of the blood collecting tube due to the repulsive force of the flexible sheath can be prevented because the anchor means of the blood collecting tube meshes with that of the blood collecting tube holder after insertion. |
