According to another general aspect, an apparatus for irradiating a plurality of renal nerves comprising a guidewire used to lead an elongated catheter in the human body the enlongated catheter further comprising a plurality of lumens the plurality of lumens further comprising a source train lumen, a hydraulic pump lumen, a guidewire lumen, and an inflator lumen the elongated catheter is connected to the guidewire by inserting the guidewire into the guidewire lumen the elongated catheter contains a source train within the source train lumen the source train lumen and hydraulic pump lumen are used to push the source train to a renal vessel.
