The safe Needles sets of Yi Seed jacket-types, to be socketed one injection tube of what, The is safe, and Needles sets include Yi Needles Head external members, and Side is protruding with the small portions Trail that Guide Tu Block, a Ling mono- Duan Installed are equipped with Yi Needles Head, The Needles Head external members socket what The injection tubes one end outside The Needles Head external members one endA set of pipe fitting, Right Should The Guide Tu Block Let have a Guide Yin Cao And what phase O The Guide approaching channel Office Let to have a Inner Ditch slots on The sleeve parts, The sleeve parts move Move in the Guide approaching channels of immigration phase O and in what The Guide approaching channels with Side outside the position nesting what The Needles Head external members of The Inner Ditch slot Right Should The Guide Tu Block.一種外套式安全針套,用以套接於一注射筒,該安全針套包括一針頭套件,該針頭套件一端外側凸出有一導凸塊,另一端裝置有一針頭,該針頭套件套接於該注射筒一端的一小徑部;一套管件,該套管件上對應該導凸塊設有一導引槽並於相鄰該導引槽處設有一內溝槽,該套管件以該內溝槽對應該導凸塊的位置嵌套於該針頭套件外側,且移入相鄰的導引槽中且於該導引槽中移動。
