Methods and apparatus for non-invasive determination of patient's blood conditions

Abstract

A method and apparatus are presented for non-invasive determination of blood clotting related and blood circulation related parameters of a mammal. At least one stimulus ST is non-invasively induced in a blood containing medium in the mammal for a preset period of time tST. This at least one stimulus is selected to cause at least one of the following to occur: (a) inducing at least two of three Virchow's triad elements including abnormalities of blood flow; abnormalities of blood constituents and abnormalities of the blood vessel wall, and (b) inducing a change in red blood cell (RBC) aggregation or local blood viscosity. Measurements are non-invasively performed at a measurement location in the mammal by applying an external field thereto for a preset time period tm, a response of the measurement location to the applied field is detected, and measured data indicative thereof generated. At least a portion of the measured data and stimulus related data are processed so as to determine a relation between a time function of the at least one stimulus ST(t) and a time function of the measured data OR(t). This relation is indicative of at least one blood circulation and blood coagulation related parameter of the mammal.

Dependencies are inferred from the claim text.