Patent ID: 6808161
Filing Date: 2004-10-26
Classification: A61M,F16L

Abstract:
A connector comprising:a housing provided with a fluid passage in its interior and a connection port for engagement with a tube; and a valve of an elastic material accommodated in said housing; wherein said valve has a cylindrical base which is tapered such that a wall thickness gradually increases toward a distal end; a valve portion on one axial end of said base which becomes in contact with said tube to be pushed inward by said tube; and a slit formed in said valve portion which opens when said valve portion is pushed inward, wherein the slit has a size such that said tube cannot penetrate through the slit upon opening of said slit; and said valve undergoes elastic deformation when said tube is engaged with said connection port of the housing by pushing said tube against said valve portion of the valve, and said slit opens as a result of said elastic deformation, and a base of which the wall thickness gradually increases toward the distal end causes a larger deformation on a proximal side than a distal side because of lower flexural strength on the proximal side, such that said valve portion becomes in close contact with distal end surface and distal peripheral surface of said tube.