| 摘要 |
PROBLEM TO BE SOLVED: To make a catheter demountable from a cannula assembly, by locking a catheter hub to a catheter hub supporting mechanism, retracting a cannula needle into a protecting position and installing a means of bar clipping for detaching the catheter hub from the catheter hub supporting mechanism and pushing out it. SOLUTION: A clip 22 of a lever release provided with a nose portion 18 of a snapped-in type is set at the edge portion of a nose guard 14, a catheter hub 26 is set to a housing 16 being at a locked position to sustain a locked state in a catheter hub supporting mechanism 26. At this time, a cannula 12 extended outside is kept in the state to stick and made it movable in one direction. After the cannula 12 is retracted into a housing 16, a lever grip 22 is pushed back and then pushed down with one finger to push out it from the nose guard 14 and the housing 16 by using only one hand. |
