IM System


Consecutive measurements are performed with a weak direct current and with very low frequency (from 100 Hz to 700 Hz) between six tangible electrodes which are placed symmetrically on the left and right forehead, palms of the hands and soles of the feet of a person. Each electrode is cathode then anode (bipolar mode). This allows the registration of the resistance, conductivity, intensity and voltage (Ohm's law) of 11 intermediate liquid paths of the human body.


The hand and foot electrodes are at least 250 cm2 and in metal. The forehead electrodes are disposable (single use) and Ag/ Ag/Cl.

Between the different electrodes the following is measured:

  • The conductivity of anode to cathode (SDC +)
  • The conductivity of cathode to anode (SDC -)
  • The delta between SDC+ minus SDC -, in a numerical value scale from 0 to 100
  • The distribution of the current in the path which is expressed in conventional unit (coefficient α).

Estimation of parameters in relation to the living tissue:

  • Estimate of tissue O2 consumption
  • Estimation of the intermediate liquid density of negative ions (the chloride ions and bicarbonate)
  • Estimation of the intermediate liquid balance of positive ions - the negative ions are related to the density of the chloride.
  • Estimation of the morphology of the intermediate liquid space.

Clinical trials:

  • Follow-ups: Examination of the drug policy (thyroid hormone, beta blockers, ACE inhibitors, and SSRI treatments)
  • Screening for prostate cancer and ADHD children (learning difficulties)
  • Estimation of the sympathetic system modulation.

Suggested use:

IM (Interstitial Measurement) is a medical device for measuring the galvanic skin response.
IM can be used for children (over 5 years) and adult patients.
The system should be used by a therapist.