| 摘要 |
PROBLEM TO BE SOLVED: To provide a syringe which not only is convenient for a user but can suppress uncertainty and reduce a risk by high pressure in medical application.SOLUTION: A syringe 1 comprises a sleeve 14 and a pressure container 18 having a high-pressure fluid therein. The sleeve comprises a sleeve piston 16. When the high-pressure container is brought into contact with the sleeve piston, an airtight state of the high-pressure container is destroyed by a projection 164 of the sleeve piston. When the sealing of the high-pressure container is removed, the compression fluid passes through an opening 180 of the high-pressure container and a hole of the sleeve piston and flows into the sleeve. When the sleeve piston is moved so as to come closer to an opening end of the sleeve, the fluid inside the sleeve is pressed and flows out from the sleeve through a sleeve opening of the sleeve. |
