| 摘要 |
PROBLEM TO BE SOLVED: To provide a tamperproof property and to assure safety after use with a simple structure and a smaller number of parts. SOLUTION: This needle 1 for medical treatment comprises a hollow needle 2, a hub 3 for supporting the base end of the hollow needle 2 and a cylindrical protector 4 cladding the part projecting to the front end side from the hub 3 of the hollow needle 2. The hub 3 has a clamp part 33 to be clamped by the hand. The protector 4 comprises an unsealing part 5 which is a cylindrical member closed at its front end by a sealing part 41 and consists of a thin part, a juncture 6 which is the part nearer the base end side than the unsealing part 5 and a housing part 7 which is the part nearer the front end side than the unsealing part 5. The juncture 7 is fitted into the difference-in-level part 35 of the hub 3 and is fixed to the hub 3. The housing part 7 has a fitting part 71 following the unsealing part 5 and a clamp part 72 nearer the front end side than the fitting part 71. The fitting part 71 is the part to be fitted to the inner side of the juncture 6 at the time of reconnection after unsealing. |
