| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an injection tool capable of reducing the force required of a user to inject a liquid medicine. <P>SOLUTION: The injection tool includes: a storage chamber S1 capable of storing the liquid medicine fed from a liquid medicine pump 2 via a flow controller 3; a coil spring 9 capable of being elastically deformed while storing the energization in the expansion of the storage chamber S1; an emission tube L3 for guiding the liquid medicine emitted from the storage chamber S1 onto a patient side; a switching valve 8 capable of switching the position between a closing position to block emission of the liquid medicine through the emission tube L3 and an open position to permit emission of the liquid medicine through the emission tube L3; and an operation member 12 capable of switching the position of the switching valve 8 from the closing position to the open position when receives the operation from a user. When the position of the switching valve 8 is switched to the open position by using the operation member 12, the storage chamber S1 is contracted with the energization force stored in the coil spring 9 to emit the liquid medicine stored inside the storage chamber S1 to outside. <P>COPYRIGHT: (C)2011,JPO&INPIT |
