PROBLEM TO BE SOLVED: To provide an air trap chamber allowing priming of a blood purifier to be efficiently performed in a simple method.SOLUTION: The air trap chamber includes: a first body 70 including a cylindrical straight part 71, a cylindrical upper end part 72 larger in diameter than the straight part 71, and a tapered part 73 connecting the straight part 71 to the upper end part 72 a second body 80 including a cylindrical body part 81 with its lower end side fitted to the outer surface of the upper end part 72, and a bottom plate 84 connected to the upper end of the body part 81 a blood inlet 33b provided in the side face of the tapered part 73 of the first body 70 a replenisher inlet 33e provided in the side face on the upper end side of the body part 81 of the second body 80 a drainage port 33d provided in the bottom plate 84 of the second body 80 and a drainage inner tube 86 provided at the inner surface of the bottom plate 84 of the second body 80 to communicate with the drainage port 33d and to extend from the inner surface of the bottom plate 84 along the longitudinal direction of a body 700 so that its tip 87 reaches an intermediate part between the replenisher inlet 33e and the blood inlet 33b.COPYRIGHT: (C)2012,JPO&INPIT【課題】簡便な方法で効率的に血液浄化装置のプライミングを行うことのできるエアートラップチャンバを提供する。【解決手段】円筒形のストレート部71と、ストレート部71よりも直径が大きい円筒状の上端部72と、ストレート部71と上端部72とを接続するテーパ部73とを含む第1本体70と、上端部72の外面にその下端側が嵌まり込む円筒形の胴体部81と、胴体部81の上端に接続される底板84とを含む第2本体80と、第1本体70のテーパ部73の側面に設けられる血液入口33bと、第2本体80の胴体部81の上端側の側面に設けられる補液入口33eと、第2本体80の底板84に設けられる排液口33dと、第2本体80の底板84の内面に設けられ、排液口33dと連通し、底板84の内面から本体700の長手方向に沿ってその先端87が補液入口33eと血液入口33bとの間まで延びる排液用内管86と、を備える。【選択図】図2
