×

ELECTRICAL IMPEDANCE TOMOGRAPHY DEVICE AND PROCESS

  • US 20130002264A1
  • Filed: 06/12/2012
  • Published: 01/03/2013
  • Est. Priority Date: 07/02/2011
  • Status: Active Grant
First Claim
Patent Images

1. An electrical impedance tomography device comprising:

  • a plurality of electrodes, which can be placed on a body;

    control and measuring circuits to feed alternating current or alternating voltage to said electrodes and to receive voltage or current signals received from said electrodes as measured signals;

    a control unit connected to said control and measuring circuits and controlling a supply of alternating current or with an alternating voltage to an electrode pair as a feeding electrode pair and receiving the voltage signal or current signal of each electrode pair from all other electrode pairs as measured signals of a measuring channel, and to successively change said feeding electrode pair through said plurality of electrodes in order to thus receive and to process measured signals (U1, . . . , KM) and reconstructing therefrom an impedance distribution of the body with a reconstruction algorithm, said control unit further continuously determining at least one property (e1, . . . , eM) each from said measured signals (U1, . . . , UM) of all measuring channels and at least one of correcting measured signals of said measuring channels on the basis of said properties and adapting the reconstruction algorithm on the basis of the properties.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×