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Method of and a system for determining a cardiovascular quantity of a mammal

  • US 9,603,533 B2
  • Filed: 02/17/2012
  • Issued: 03/28/2017
  • Est. Priority Date: 02/17/2011
  • Status: Active Grant
First Claim
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1. A method of determining at least one cardiovascular quantity of a mammal,comprising:

  • determining or estimating a mean diameter of a vessel at a measuring site by;

    applying a plurality of electrical oscillating signals selected from an oscillating current and an oscillating voltage to at least one set of electrodes, wherein the plurality of electrical oscillating signals comprises at least two different excitation frequencies and wherein electric field lines between the at least one set of electrodes penetrate the vessel at the measuring site; and

    determining an impedance between the at least one set of electrodes for each excitation frequency;

    determining an elasticity related quantity of the vessel at the measuring site;

    determining a distension of the vessel at the measuring site; and

    calculating the at least one cardiovascular quantity from the determined mean diameter, the elasticity related quantity and the distension of the vessel at the measuring site.

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