- a very short rise time
- a high positive pressure ratio as well as
- low tensile pressure.
Spark WavesTM are especially effective shock waves that are generated by means of a spark discharge. In physical terms Spark WavesTM are acoustic waves with a brief rise time of a few nanoseconds (10-9s), which are characterized by a pulse of positive pressure followed by a phase of negative pressure. The shorter the rise time and the lower the tensile pressure the higher is the quality of the Spark WaveTM and the more reliable the Spark WaveTM stimulates valuable regeneration and healing mechanism on cellular level. According to Rompe (1997) “[A]coustic energy is defined not only by the positive pressure, but also by the negative pressure. The decisive parameter for adverse effects is the negative pressure. It is responsible for pain and tissue damage by cavitation”. Coptcoat et al (1987) support Rompe’s statement by declaring that „There should be a very low content of tensile waves since this is a possible source of tissue damage as we know from the biological effects of ultrasound.“ MTS has eliminated the tensile pressure of the SparkWave because of it’s negative biological consequences, and in turn generating Spark WavesTM of highest therapeutical efficacy with little side effect potential. The most important quality features of a Spark WavesTM are therefore: