This Chong makees secured location Needles Ju structures improvement Department You mono- Cover parts, an indwelling Needles parts and a puncture Needles Jian Suo Knot and closes, wherein The puncture Needles Jian Department can Will Needles Body Zuo Shou Satisfied save Move make, and it punctures Needles parts and meets firmware, a sliding component, Yi Sai Body and Yi Wo Rod comprising Yi Needles Body, one, what The Wo Rod Inter Let are equipped with the roads Rail, use Hou for the sliding component what of Title Jie Needles Body, slide onto the solid Shi Needles Body Shou Satisfied of Di And buttons to Hou end and retain Yu Wo Rod Inter, Let user operates conveniently and reduces other people harm of Needles Body Right.本創作安全留置針具之結構改良,係由一蓋件、一留置針件及一穿刺針件所結合,其中該穿刺針件係可將針體作收納保存動作,而穿刺針件包含一針體、一接固件、一滑移件、一塞體及一握桿,於該握桿間設置有軌道,可供銜接針體之滑移件於使用後,向後端滑移至底並扣固,使針體收納存留於握桿間,讓使用者操作便利且降低針體對他人的危害。
