| 摘要 |
PROBLEM TO BE SOLVED: To successively and surely inject one or more liquids respectively introduced to liquid chambers divided into one or more from the respective liquid chambers. SOLUTION: This syringe 20 is provided with a cylindrical tube 21 whose one end is provided with a discharge hole 24 and other end is opened, a pressurizing piston 31 composed of an elastic body closely sealed and brought into contact with the inner wall of the cylindrical tube 21 and moved from an opening end to the inside of the tube and at least one free piston 33 composed of an elastic material arranged between the discharge hole 24 and the pressurizing piston 31 inside the cylindrical tube 21. The liquid can be held in the liquid chamber 41 composed of a space surrounded by the pressurizing piston 31, the free piston 33 and the cylindrical tube 21. The free piston 33 is provided with a recessable side wall 35 on at least a part between the outer surface and an internal void part 48. When a pressure applied to the outer surface of the free piston on a side facing the pressurizing piston 31 becomes sufficiently large, the side wall 35 is recessed to the inner part of the void part 48 and the liquid inside the liquid chamber 41 is made to flow out to the discharge hole 24. |
