An invasive lithotripter probe system comprising an invasive lithotripter tip for use with a lithotripter probe. The lithotripter tip comprises a first conic electrode positioned at a distal end of the lithotripter tip a second conic electrode, an end of which is coaxially aligned with an end of the first conic electrode an electrical source configured to charge the first conic electrode to a first polarity, where the electrical source comprises a two-electrode spark gap triggering system. The first and second conic electrodes are positioned on the lithotripter tip such that an electric arc between the ends of the first and second conic electrodes and causes a Shockwave that is toroid shaped to radiate from the lithotripter tip. The two-electrode spark gap triggering system comprises a first spark gap, a second spark gap electrically connected in series with the first spark gap, and a storage capacitor electrically connected in parallel with the first and second spark gaps. The first conic electrode is electrically connected to the storage capacitor via the serially connected first and second spark gaps and where the first and second spark gaps conduct, the storage capacitor is configured to discharge to the first conic electrode, thereby causing the electric arc between the ends of the first and second conic electrodes.
