The present invention is an infusion set comprising a first member constituting a main pipe and a second member constituting an immediate tube, wherein the infusion set includes a connector for connection to a three-way divergence plug inserted into a cap through an insertion port or a drip-An opening portion in which a hydrophobic filter is disposed at a position on the far side from the tip end portion of the needle connecting connector so as to allow the gas in the cap to pass therethrough so as to prevent the liquid and the solid from permeating therethrough and the opening portion And a lid for closing the part are disposed on the cap member so as to enable priming in a simple process free from liquid leakage and the first member and the second member can be arbitrarily connected by the three-way divergent plug 5 Improvement in workability and arbitrary coloring can be achieved by maintaining the stability of the infusion set and the drip stand and preventing leakage at the site where the drip needle is stuck and physical suffering of the patient, Accident caused by human error It is the prevention of the occurrence, an easy to define the standard usage instructions, to provide a new infusion set.本発明は、主管を構成する第1の部材と即管を構成する第2の部材とからなる輸液セットであって、挿入口からキャップ内に挿入された三方分岐栓への接続用コネクタ又は点滴針接続用コネクタの先端部より奥側の部位に疎水性フィルターを配設してキャップ内の気体を透過させ液体および固体を透過させないようにせしめた開口部と、該開口部の外側に該開口部を閉鎖するための蓋とを配設したキャップを被せ、液の漏出がない簡便な工程でプライミングを可能とし、第1の部材と第2の部材を、三方分岐栓5で任意に接続できるようにして作業性を向上させ、任意に彩色を施すことで、輸液セット及び点滴スタンドの安定性の保持と、点滴針を刺した部位における液漏れと患者の肉体的苦痛の防止と、投与手順の人的ミスに起因する事故の発生の防止ができる、標準的な使用手順を定めることの容易な、新たな輸液セットを提供する。
