| 摘要 |
PROBLEM TO BE SOLVED: To prevent infection of HIV, HCV or the like as caused by erroneous needling by allowing a medicare personnel to seal a needle used easily into an injector. SOLUTION: In an injection needle 2 provided at the tip of an injector 1, the injector needle 2 is provided with an operating member 5 properly rotatable ahead of the base part 3 thereof, an engaging member 8 is fixed on the rear outer circumference of the needle 4 and the front of the needle 4 is protruded to the front end of the operating member 5 while the engaging member 8 is made to pierce the axis of the base part 3 and the operating member 5. Moreover, a spring 6 is disposed to allow the engaging member 5 to be backwardly energized to the base part 3 while the engaging member 8 is retained ahead of the base part 3 to block the retraction thereof. When the operating member is turned properly to the base part 3 from this position, the blocking of the retraction of the engaging member 8 to the base part 3 is released to get the needle 4 sunk from the front end of the operating member 5. |
