DISPOSITIVO Y PROCEDIMIENTO PARA DETERMINAR EL TIEMPO DE COAGULACION DE SANGRE BASADO EN MAGNETOELASTICIDAD

Device and procedure to determine the time of blood coagulation based on magnetoelasticity. The present invention relates to a device for determining the blood coagulation time comprising: - two magnetoelastic micro-wires (40, 41) of identical dimensions and material, arranged respectively inside individual capillaries (50, 51) of identical dimensions and material; - identical coils (30, 31) wound on said capillaries, respectively, and fed by a sinusoidal signal of preset frequency; - a differential measuring element (70) connected to respective coils (30, 31) to provide a difference between the current (ib) flowing through the first coil (30) and the current (ia) flowing through the second coil (31); So that in response to the introduction into said first capillary (50) of a certain amount of a reference liquid surrounding the first microwire (40) and in the second capillary of a certain amount of blood from a patient surrounding the second microwire ( 41), this difference increases until reaching a maximum value (vmax), where the time (tmax) that it takes to reach said maximum value is proportional to the time of prothrombin of said blood. (Machine-translation by Google Translate, not legally binding)