| 摘要 |
PROBLEM TO BE SOLVED: To provide a syringe having constitution capable of achieving injection of suitable injection objective material.SOLUTION: A syringe includes: a nozzle part including a passage where an injection objective material pressurized by a piston flows and injecting the injection objective material from an opening end of the passage to an injection object region; and a nozzle holder fixed to a housing with the nozzle part held. Before energy is generated by a driving part to inject the injection objective material, in the piston held in a rote in a piston holder, a storing space storing the injection objective material is formed on an advancing direction of the piston, the piston holder is fixed in a non-contact state without directly coming into contact with the nozzle part in the advancing direction of the piston in the housing, and the non-contact state is kept even in the stage of generating energy by the driving part. |
