| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a medicinal solution injection-type pressure syringe with short needle capable of reducing an incision opening in injection, and reducing pain. <P>SOLUTION: A nozzle 1 is configurated by an inner cylinder 1b to which the short needle 1a is exchangeably attached by screwing, and an outer cylinder 1c for movably inserting the inner cylinder 1b. The outer cylinder 1c is provided with a slot 1d, and the inner cylinder 1b is provided with a projecting part 1e moving in the slot 1d. Upon giving the injection, the projecting part 1e is moved to a front end of the slot 1d when the medicinal solution is sucked, a tip of the nozzle 1 is brought into contact with an injection part in a state that the projecting part 1e is moved to a rear end of the slot 1d, and a piston 4 is advanced at a high speed, whereby the short needle 1a is advanced to be inserted into skin, and the medicinal solution is injected. <P>COPYRIGHT: (C)2004,JPO |
