is CEO of Neuromon B.V.

In 2014, Schaafsma published the theory of Arterial Acceleration that aims to explain how the pulsatile force of the heart can reach all bodily tissues. 




Remembering is for knowledge, to understand is to forget.  Thesis. Groningen, 1991.

Neuromon B.V. aims

  • to improve medical treatment of severely ill patients
  • by providing educational and diagnostic support to medical doctors throughout the world
  • based upon a better understanding of cardiovascular physiology
  • by incorporating the Theory of Arterial Acceleration.


Neuromon B.V. has developed a computer simulation of the cardiovascular system aiming to improve the understanding of cardiovascular physiology. This simulation contains a number of physiological reflexes that collaborate to keep brain perfusion as constant as possible. It also demonstrates how arterial acceleration enhances the pressure wave from the heart. For more information about the model please refer to the Downloads menu.

On this page you will find links to:

a demoversion of the Cardiovascular simulation (current version 2.6.0)

a manual for learning about the Cardiovascular simulation


Neuromon B.V. is licensed for the implementation of the so-called PaR-technology.

PaR-technology is a new way to express cerebral autoregulatory state by calculating a combined index based upon the continuous registration of arterial blood pressure, as the driving force, and middle cerebral artery flow velocity, as resultant.

The so-called pulsatile apparent resistance is negative when cerebral autoregulation is exhausted. Varies between 0 and 0.6 in the normal situation and increases over 0.6 in intracranial hypertension.

PaR-technology has been filed in the EU, USA, Canada and Australia.