The present invention relates to a vein indwelling needle in which safety measures are taken in order to prevent a situation in which a medical person accidentally punctures a used puncture needle and injuries when removing the vein indwelling needle. The vein indwelling needle has an inner needle communication cavity formed at the center, has a shunt tube disposed on a side surface of the inner needle communication cavity, and communicates with the inner needle communication cavity, an outer needle base, a storage cylinder, and a trocar A puncture needle holding portion exposed from the distal end of the puncture needle, a pull-out portion, and an operation portion that is a hollow tube. An extruding part is arranged around the hollow tube, a drawing part is embedded and fixed in the central part of the hollow tube, and the curved surface part of the storage cylinder is formed around the hollow tube and the central part of the hollow tube. The operation unit moves back and forth on the curved surface portion of the storage cylinder by giving a pushing force to the pushing portion, and when the pushing portion is pushed forward, the second connecting portion of the pulling portion and The puncture needle holder is coupled to the first coupling portion of the puncture needle holder, the puncture needle holder coupled to the pull-out portion from which the push-out portion is pulled back, and the puncture needle is stored in the needle housing portion.医療関係者が静脈留置針を取り外す際、誤って使用済みの穿刺針を自身に誤刺して怪我をする事態を予防するために、安全対策がされた静脈留置針に関する。静脈留置針は中心部に内針連通空洞部が形成され、内針連通空洞部の側面に配置され内針連通空洞部に連通するシャントチューブを有し、外針基と、収納筒と、トロッカーの先端から露出される穿刺針保持部と、引抜部と、中空管である操作部と、を有する。中空管の周囲には押出部が配置され、中空管の中心部には引抜部が埋め込まれて固定され、収納筒の曲面部は前記中空管の周囲と中空管の中心部との間を通過するように配置され、押出部に押出力を与えることにより操作部が収納筒の曲面部を前後に移動し、押出部が前方押された場合に引抜部の第２結合部と穿刺針保持部の第１結合部とが結合し、押出部が引き戻される引抜部に結合した穿刺針保持部が引き戻され、穿刺針が前記針収容部に収納される。
