Hmmm... C. pulmoni lives in the back and not the lungs?
Sound waves can help to kill off things. In order to have a better appreciation, it would be helpful to know if that particular sound wave/electrical current could, in fact, kill those nematodes and if it can penetrate the muscle layers involved. Some electrical/sound currents can do it, some can't.
Since you brought this subject up, you may find this link interesting.