| 摘要 |
PROBLEM TO BE SOLVED: To provide a percutaneous syringe which adapts itself to a syringe of a small capacity, can be mass produce, is sufficiently simple in production in an amount of hundred millions per year and is reliable in use. SOLUTION: The syringe has a storable needle and a barrel having a receiver provided with an open base end and an inner shoulder. The barrel has a slender plunger having a hollow hole, a base end and a terminal forming a cavity. A stopper closes the open end of the cavity. The syringe has a hub having a base end flange and a sleeve has a pointed base end arranged to face the flange. When a spring which is compressed by being biased between the receiver and the flange and is arranged around the hub is exerted with the force greater than the force necessary for releasing fluid from the chamber, the plunger has the flange and the stopper cut off by a cutting section, by which the cavity is exposed. The spring moves the hub into the cavity of the plunger and stores the needle into the prescribed position of the syringe. |
