Societe Anonyme Dite: Institut Merieux

Maryse Chanas

Edward Shanbrom

Jacques C Liautaud

Jean F Pla

Procedure for the preparation of a concentrate of prothrombinogenic compound. This procedure, in which, starting from a source of prothrombinogenic compound, an adsorption is followed by an elution, is characterized by the fact that a source of prothrombinogenic compound and a source of antithrombin III (or AT III) is placed in contact with an adsorbing agent capable of adsorbing both the prothrombinogenic compound and antithrombin III, and that the foregoing occurs in the presence of heparin, at least during the elution stage, and that elution is carried out with an elution agent capable of eluting the prothrombinogenic compound, the AT III and heparin at the same time. Application of the product obtained, notably to the treatment of blood coagulation difficulties.

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Sainte Foy Les Lyon, France

Maryse Chanas