Patent ID: 8852958

Claim:
Device for the demonstration of a specific complex formed by reaction between an antibody present in a solution and an antigen bound to a magnetic particle, or for demonstration of a specific complex formed by reaction between an anti-antigen antibody of the blood group present in solution and an antigen of the blood group carried by an erythrocyte, or for IAR or phenotyping of a blood group, wherein the device comprises: a) a reactor or set of reactors with an open top and sealed base whose diameter decreases in the area close to the base in such a way that it forms an inclined wall extending down to the base, said inclined wall being at least partially coated with an anti-immunoglobulin or any other compound capable of binding to the antibody of said formed complex, each of the reactors is partially filled with a viscous substance or gel such that at least part of the inclined wall of the reactor is coated with the viscous substance or gel, b) at least one magnet or set of magnets that can be arranged externally under the reactor(s) and a rotary stirring system of said reactor(s), c) if need be, an incubator capable of regulating the incubation temperature of reactor(s), and d) a reading system of the image obtained at the base of the reactor and/or the inclined wall of the reactor coated with said anti-immunoglobulin.