The present application pertains to a catheter apparatus includes a tubular structure and a plurality of fluid tubular structures. The plurality of fluid tubular structures respectively have a proximal end and a distal end, and set at the outer spatial volume of the tubular structure along the direction of the first axle thereof. The plurality of fluid tubular structures each have an orientation structure at the distal end.本案提供一種導管裝置,其包含一管狀結構;及複數個流體流管結構,所述流體流管結構各具有一近端及一遠端,且沿著所述管狀結構的一第一軸方向設置於所述管狀結構的外圍;其中所述複數個流體流管結構於所述遠端各自設有獨立的一定位結構。1‧‧‧導管裝置11‧‧‧管狀結構12‧‧‧射源13a、13b‧‧‧控制元件14a、14b‧‧‧流體流管15a、15b‧‧‧定位結構17‧‧‧近端18‧‧‧遠端19‧‧‧外管結構
