| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a syringe for a liquid medicine with which two or more liquid medicines can be smoothly and safely injected in an examinee one by one. <P>SOLUTION: An inner piston 230 and a rear piston 220 are inserted in a cylinder member 210 in turn wherein a communication channel 232 is normally closed by a closure mechanism 234 and an opening and closing member 233, and is opened by an opening mechanism 214 corresponding to an advanced position of the inner piston 230. When the rear piston 220 is pressed into the cylinder member 210, the liquid medicine in front of the same presses the inner cylinder 230 and the first liquid medicine is pressed out from the cylinder member 210 to the outside. When the inner piston 230 moves to a predetermined position of the cylinder member 210, the opening mechanism 214 opens the opening and closing member 233 so that the second liquid medicine which is pressed by the rear piston 220 is sent by pressure through the communication channel 232 in the inner piston 230 and a through hole 212 of the cylinder member 210 to the outside. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
