Abstract: A method and a device for collecting a dialysate sample for a qualitative and quantitative analysis of all the dialysate collected during replacement therapy for renal failure. In a preferred embodiment, the device (10) comprises a buffer receptacle (20) consisting of a cylindrical container on a separator (30). The separator (30) has a collecting chamber (36) with a number of calibrated ducts (39 and 42) formed at its periphery. Calibrated ducts (39) open into a flow channel (38) and the dialysate conveyed by the ducts passes into a discharge duct (34), whereas calibrated ducts (42) lead to a collector (41) communicating with a duct (35). The dialysate collected at the outlet of duct (34) is analyzed. This device allows the dialysate generated during a dialysis process to be sampled continuously and the composition of this sample represents that of all the dialysate produced.

Abstract: A sewing machine has an upper arm and a lower free arm carried by a column and two longitudinal supports disposed on either side of the free arm and connected to the base of the column. At least one of the supports is slidable laterally outwards from a position closing off the free arm to a position allowing access to the free arm under the action of a biasing spring, but is retained in the withdrawn position by a catch cooperating with an abutment on a transverse guide rod fixed on the support.