| 摘要 |
Disclosed is a syringe which comprises a cylindrical hollow member having its forward end mounted with a needle, a cooling gas cylinder equipped with a push button and removably mounted at one side of the outer peripheral surface of an intermediate portion between the ends of the cylindrical hollow member, and a cooling-gas injection nozzle member for injecting a cooling gas ejected from the cooling gas cylinder. A forward end of the nozzle member is moved up to a position which is forward or rearward of a forward end of the needle. |
