Patent ID: 7618407

Claim:
A bag system for collecting a biological fluid comprising: a collection device; a fluid collection bag in fluid communication with the collection device; and a sampling device in fluid communication with the collection device, the sampling device comprising: a plurality of sampling receptacles each comprising: a body having a first diameter; and a closure element having a second diameter greater than the first diameter; and a transfer device comprising: a single hollow guide configured to accommodate a single sampling receptacle at one time and open at a front part to allow introduction of the at least two sampling receptacles sequentially; a hollow needle in fluid communication with the bag system, wherein the hollow needle passes through a rear part of the guide so that a downstream part of the needle extends inside the guide and an upstream part of the needle extends outside the guide, and wherein the hollow needle is adapted to perforate the closure element of each of the plurality of receptacles sequentially when the receptacle having the perforated closure element is in a transfer position, placing the downstream part of the needle inside the receptacle when it is in a transfer position; and an associating device configured to support at least one of the plurality of receptacles in a standby position, guide the receptacles sequentially into to a transfer position in the hollow guide, and allow dissociation of each of the plurality of receptacles from the bag system; the association device comprising: a housing associated with the hollow guide; and a skirt provided on the housing into which the closed end of each of the plurality of receptacles is introduced in order to allow the lateral sliding of each of the plurality of receptacles in the housing towards the guide, wherein an internal wall of the skirt is provided with a projection intended, by interaction with the closure element, to prevent transverse withdrawal of each of the plurality of receptacles from the housing.