SYRINGE FOR KIT PRODUCT, INTERMEDIATE SLIDE VALVE FOR SYRINGE TYPE KIT PREPARATION, SYRINGE TYPE KIT PREPARATION, AND X-RAY CONTRAST PREPARATION KIT PREPARATION

摘要

PROBLEM TO BE SOLVED: To provide a syringe for a kit preparation with which a plurality of agents can surely be injected in order by once injecting operation, which is good in operability, which has low possibility of inclusion of foam when replenishing the agents, and in which a dead volume which causes an agent without contributing to injection is extremely small, and to provide an intermediate slide valve which realizes the syringe for the kit preparation.

SOLUTION: The intermediate slide valve is nearly cylindrical and has recessed parts for forming spaces divided watertight with the inner wall of a syringe barrel when being inserted to the inside of the syringe barrel on its side face. Independently from the recessed part, the intermediate slide valve is provided with a rear agent path reaching the side of a head more than a recess part on the side of the head most in the moving direction of the intermediate slide valve among the recesses on a surface in contact with the inner wall of the syringe barrel on the side face of the intermediate slide valve from a space in the syringe barrel on the plunger operating side of the intermediate slide valve formed when the intermediate slide valve is inserted to the inside of the syringe barrel.

COPYRIGHT: (C)2004,JPO