Abstract: A manually-severable coupling device for coupling two tubes (12a, 12b), particularly useful in peritoneal dialysis, including a flexible plastic member having passageways (30) therethrough and formed with tubular end sections (31, 32) for receiving tubes (20, 24) to be coupled, an annular groove (33) formed intermediate the tubular end sections defining a flexible, weakened, annular web (33) capable of being severed by rotating one of the tubular end sections (31, 32) with respect to the other, and a finger gripping formation (34, 35) integrally formed in each tubular end section (31, 32) on opposite sides of the weakened annular web (33) grippable by a user to rotate the tubular end sections with respect to each other to sever them from each other along the weakened annular web (33).

Abstract: A blood sampling system includes a blood collecting assembly having an in-line blood sampling unit, a blood sampling container, and a fluid coupling device coupled to the in-line blood sampling unit for coupling the in-line blood sampling unit to the blood sampling container. The fluid coupling device has a housing having an anterior section formed with an open end capable of being applied to the blood sampling unit, a posterior section formed with an open end capable of receiving the blood sampling container, and a transversely-extending member between the anterior and posterior sections. A needle is secured to the transversely-extending member so as to extend axially of the housing.