A kind of hand venous detaining needle group,With a remaining needle fixed cylinder,One set what remaining needle fixed cylinder remaining needle,One be movably arranged what remaining needle fixed cylinder puncture needle fixed cylinder,The puncture needle of one fixed what puncture needle fixed cylinder,And fixed what puncture needle fixed cylinder and the positioning ring seat around puncture needle,It will pull puncture needle when puncture needle fixed cylinder position one withdraw of the needle position of what and be detached from remaining needle,Make in the what remaining needle fixed cylinder of puncture needle position and avoid it is exposed,Simultaneously position ring seat can against and inlay card what remaining needle fixed cylinder,It is disconnected from each other between remaining needle fixed cylinder and puncture needle fixed cylinder to prevent,It can so achieve the effect that simplified structure and easy to assembly.一種手動式靜脈留置針組，具有一留置針固定筒、一設於留置針固定筒之留置針、一可移動地套設於留置針固定筒之穿刺針固定筒、一固定於穿刺針固定筒之穿刺針，以及一固定於穿刺針固定筒且環繞穿刺針之定位環座，當穿刺針固定筒位於一退針位置時會拉動穿刺針脫離留置針，使穿刺針位於留置針固定筒內而避免外露，同時定位環座會抵靠且嵌卡於留置針固定筒，以防止留置針固定筒與穿刺針固定筒之間互相分離，如此即能達到簡化結構及組裝方便的效果。
