Patent ID: 9050421
Filing Date: 2015-06-09
Classification: A61M,G16H

Abstract:
1. A method of determination of the state of a vascular access of a patient intended to follow successive sessions (i,j) of extracorporeal blood treatment by extraction and return of the blood via the vascular access, each successive extracorporeal blood treatment session comprising circulating the blood of the patient, at an extracorporeal blood flow rate, in an extracorporeal blood circuit having an extracorporeal arterial line, a filter and an extracorporeal venous line, the method comprising the following steps: a) determining a value (P1i, P1j, P2i, P2j, . . . ) of at least one hemodynamic extracorporeal parameter (P1, P2 . . . ) of the patient for at least two sessions (i,j), b) determining a value (Ei, Ej) of purification effectiveness of the extracorporeal blood treatment for at least two sessions (i,j), wherein the purification effectiveness is equal or a function of at least one in the group of: c) determining a risk score relating to the state of the vascular access of the patient as a function of at least two values (Pi, Pj) of the hemodynamic extracorporeal parameter and of at least two determined values (Ei, Ej) of the purification effectiveness.