Method and device for assaying an antigen present on erythrocytes or an antibody binding to an antigen present on erythrocytes

An assaying kit for testing pre-transfusion blood group matching between two blood samples, said kit comprising:

• a donor assembly corresponding to a first donor blood sample, the donor assembly having a first shape;
• and
• a recipient assembly corresponding to a second recipient blood sample, the recipient assembly having a second shape different from the first shape to avoid confusion with the donor assembly;
• each assembly comprising at least two test units, each test unit comprising:
• a reagent containing an antibody able to bind to an antigen present on erythrocytes, and
• a membrane permeable to free erythrocytes and impermeable to hem agglutinated erythrocytes,
• a first cavity for receiving the reagent and the donor blood sample or the recipient blood sample, and a second cavity for receiving a filtrate;
• the first cavity and the second cavity being separated by the membrane;
• wherein the antibody contained in the first test unit for both the first donor assembly and the second recipient assembly corresponds to a first blood group, the antibody contained in the second test units for both the first donor assembly, and the second recipient assembly corresponds to a second blood group;
• wherein each assembly comprises means for receiving a blood sample and distributing said blood sample between the test units of each assembly;
• and
• wherein the means for receiving the blood sample of the assembly corresponding to the first donor blood sample comprise a needle for taking a blood sample from a blood bag, said needle comprising a tip incapable of piercing skin of an individual to inhibit receiving a sample directly sampled from an individual.