COLLECTION ASSEMBLY OR TEST TUBE FOR A SMALL AMOUNT OF A BODY FLUID, COMPRISING AN EXTENDER ELEMENTThe invention relates to a collection assembly (1) for small amounts of body fluids, comprising a sample container (2) and an extender element (3). The sample container (2) has a base (13) and a container wall (5) with a first container wall section (6) and a second container wall section (7) adjoining same. The second container wall section (7) is formed hollow-conically and projects into the extender element (3). Moreover, a coupling device (25) with a first coupling element (26) and a second coupling element (27) is provided. When the coupling elements (26, 27) are in coupled engagement, the extender element (3) is coupled to the sample container (2) in a positively locked manner in the form of a snap connection establishing the collection assembly (1).A collection assembly (1) for collecting a small amount of a body fluid, in particular a blood sample, urine, salvia, comprising: a sample container (2) with a container wall (5), said container wall (5) extending from a first open end (8) to a second end (9), being limited by an outer surface (10) and an inner surface (11) and defining a longitudinal axis (12), and with a base (13), said base (13) closing the second end (9) of the container wall (5) and surrounding a collecting chamber (14) together with the container wall (5); and whereinthe container wall (5) comprises a first container wall section (6) and a second container wall section (7) adjacent thereto in the direction of the longitudinal axis (12);wherein the first container wall section (6) is formed hollow-cylindrically with a first outer diametric dimension (15) and is arranged starting out from the open end (8); andwherein the second container wall section (7) comprises an at least sectionally smaller second diametric dimension (16) with respect to the first outer diametric dimension (15) of the first container wall section (6); and whereina transition section (28) is arranged between the first container wall section (6) and the second container wall section (7); and further comprising:an extender element (3) having a side wall (18), said side wall (18) extending from a first open end (19) to a second end (20), and having a base wall (21) arranged to be adjacent to the second end (20), wherein the base wall (21) of the extender element (3) is calotte-shaped, in particular hollow-spherical-calotte shaped; andwherein the sample container (2) at least partially projects into the first open end (19) of the extender element (3) with its second container wall section (7) arranged at a distance from the first open end (8) in the direction of the longitudinal axis (12); andfurther comprising: a coupling device (25) with at least one first coupling element (26) and with at least one second coupling element (27); whereinthe at least one first coupling element (26) is arranged or formed on the sample container (2) and the at least one second coupling element (27) is arranged or formed on the extender element (3); and whereinwhen the first and second coupling elements (27) are in coupled engagement, the extender element (3) is coupled to the sample container (2) in a positively locked manner by means of a snap connection formed by the coupling elements (26, 27) establishing the collection assembly (1);wherein the second container wall section (7) of the container wall (5) of the sample container (2) is formed hollow-conically;wherein the at least one first coupling element (26) is arranged in a transition section (28) between the first container wall section (6) and the second container wall section (7) of the container wall (5);wherein the side wall (18) of the extender element (3) between the first open end (19) and the second end (21) is formed hollow-cylindrically; andwherein the side wall (18) is formed to be continuous and straight as seen in axial section between the first open end (19) and the second end (21);wherein the at least one first coupling element (26) is formed as a continuous peripheral first groove (30) as well as the wall section (29) of the side wall (18) of the sample container (2) adjoining thereon in the direction towards the base (13) of the sample container (2);wherein a first side face (32) of the first groove (30), said first side face (32) facing the open end (8) of the sample container (2), forms an abutment surface for an end face (31) of the extender element (3) in the region of its first open end (19) and the first side face (32) forms an axial abutment for the first end face (31) of the extender element (3);wherein several support elements (17) arranged distributed across the circumference are provided, said support elements (17) being arranged on the outer surface (10) of the second container wall section (7) of the container wall (5) and projecting beyond the outer sur-face (10) towards the side facing away from the longitudinal axis (12);wherein the support elements (17) are formed as webs, said webs having a particularly parallel longitudinal extent with respect to the longitudinal axis (12);wherein an outer envelope of the webs forming the support elements (17) has a diameter (36), said diameter (36) being equal to or slightly larger than an inner diameter (37) of the side wall (18) of the extender element (3) in the region of its open end (19);wherein in the base wall (21) of the extender element (3), at least one break-through (24), preferably several breakthroughs, is or are arranged, said breakthrough (24) or said breakthroughs perforating the base wall (21); andwherein the at least one breakthrough (24) is arranged at a distance from the longitudinal axis (12) in the radial direction and the base wall (21) is formed continuously in the region of the longitudinal axis (12).
소량 체액 채취 어셈블리본 발명은 시료 용기(2) 및 확장기 요소(3)를 포함하는 소량 체액용 채취 어셈블리에 관한 것이다. 시료 용기(2)는 기부(13) 및 제1 용기벽 구역(6)과 제1 용기벽 구역에 접하는 제2 용기벽 구역(7)을 구비하는 용기벽(5)을 구비한다. 제2 용기벽 구역(7)은 중공 원뿔형으로 형성되고, 확장기 요소(3) 내로 돌출한다. 또한, 제1 결합 요소(26) 및 제2 결합 요소(27)를 구비한 결합 장치(25)가 구비된다. 결합 요소들(26, 27)이 맞물림 결합된 때, 확장기 요소(3)는 시료 용기(2)에 스냅 결합의 형태로 된 포지티브 록 방식으로 결합되어 채취 어셈블리(1)를 확립한다.소량의 체액, 특히 혈액 시료, 소변, 타액을 채취하기 위한 채취 어셈블리로,제1 개방 단부(8)로부터 제2 단부(9)까지 연장하고 외부 표면(10) 및 내부 표면(11)에 의해 한정되고 종축선(12)을 획정하는 용기벽(5) 및 용기벽(5)의 제2 단부(9)를 폐쇄하고 용기벽(5)과 함께 채취 챔버(14)를 둘러싸는 기부(13)를 구비하되, 용기벽(5)이 제1 용기벽 구역(6) 및 종축선(12) 방향으로 제1 용기벽 구역에 인접한 제2 용기벽 구역(7)을 포함하고, 제1 용기벽 구역(6)이 제1 외경 치수(15)를 가지는 중공 원통형으로 형성되며, 개방 단부(8)로부터 시작하도록 배열되고, 제2 용기벽 구역(7)이 적어도 국부적으로 제1 용기벽 구역(6)의 제1 외경 치수(15)보다 작은 제2 직경 치수(15)를 포함하는, 시료 용기(2), 및제1 개방 단부(19)로부터 제2 단부(20)까지 연장하는 측벽(18) 및 제2 단부(20)에 인접하게 배열되는 기부벽(21)을 구비하는 확장기 요소(3)를 포함하되,시료 용기(2)가 제2 용기벽 구역(7)이 종축선(12) 방향으로 제1 개방 단부(8)로부터 소정 거리에 배열되면서 확장기 요소(3)의 제1 개방 단부(19) 내로 적어도 부분적으로 돌출하는, 채취 어셈블리에 있어서,용기벽(5)의 제2 용기벽 구역(7)이 중공 원뿔형으로 형성되고,적어도 하나의 제1 결합 요소(26) 및 적어도 하나의 제2 결합 요소(27)를 구비한 결합 장치(25)가 구비되되,적어도 하나의 제1 결합 요소(26)가 시료 용기(2) 위에 배열되거나 형성되고, 적어도 하나의 제2 결합 요소(27)는 확장기 요소(3) 위에 배열되거나 형성되고,제1 및 제2 결합 요소들(26)이 맞물림 결합된 때, 확장기 요소(3)가 결합 요소들(26, 27)에 의해 이루어지는 스냅 연결에 의해 포지티브 록 방식으로 시료 용기(2)에 결합되어 채취 어셈블리(1)를 확립하는 것을 특징으로 하는 채취 어셈블리.