Problem to be solved: to provide a subclavian vein puncture without erroneous puncture which induces this puncture needle into the subclavian vein.Solution: a guide tube is attached to a clot type puncture needle Ba having an internal cavity in which a guide tube CA can be inserted, and an insertion needle is guided into the clavicular vein through a 22G test puncture needle in a clavicular vein.The puncture needle is guided to the subclavian vein in the same pathway that the test puncture has passed, and it is possible to recognize that the mantle EA of the mantle type puncture needle is introduced into the subclavian vein, and the blood is regained to the mantle.Diagram【課題】本穿刺針を鎖骨下静脈内に誘導する、誤穿刺のない鎖骨下静脈穿刺具を提供する。【解決手段】案内管Ｃａを挿入可能な内腔を有する外套型穿刺針Ｂａに案内管を装着し、予め２２Ｇ試験穿刺針を通じて鎖骨下静脈内に留置したガイドワイヤーを案内軸として、外套型穿刺針を鎖骨下静脈内に誘導する。本穿刺針は試験穿刺針が通過した同一経路で鎖骨下静脈内に誘導されると共に、外套型本穿刺針の外套管Ｅａが鎖骨下静脈内に導入され、外套管に血液が逆流することを視認することができる。【選択図】図１
