APPARATUS FOR DETECTING CHANGE OF VISCOSITY BY MEASURING RELATIVE SLIP, ESPECIALLY FOR DETECTING BLOOD COAGULATION TIME.

摘要

P This apparatus for detecting the viscosity change of a fluid medium in time is characterized in that it comprises a driving element (11) and a driven element (16) having respective walls (15 and 17) in which delimit between them a chamber (12) of calibrated volume adapted to receive a dose of fluid (13), the driven element (16) being driven in relative rotation by the driving element (11) with a relative sliding a function of the viscosity of the fluid which ensures the coupling between the two elements and means (19 and 20) for measuring the relative slip. BR/ Such an apparatus is intended for measuring the coagulation time of a dose of blood in contact with a suitable reagent deposited in the form of a layer on at least one of the walls (15 and 17) vis-à-vis -vis elements (11 and 16). BR/ Application to coagulometers. / P