A catheter (100) comprising: a catheter body (104) with a hole catheter (202) extending from a proximal portion decatéter (112) to a distal catheter portion (114) a manifold (102) coupled to the proximal catheter portion (112), one manifold hole (200) extending through the manifold assembly (102) from a proximal manifold portion (106) hastauna distal portion manifold (108), the manifold hole (200) in communication with the decatéter hole (202) and including the manifold hole (200) having a mounting cavity (206) extiendealrededor of the proximal portion of catheter (112) a loop fluid jet (300) coupled to a high pressure tube (204) in the distal catheter portion (114) extending the loop fluid jet (300) around a hole loop jet fluido320) including the loop fluid jet (300) holes fluid jet (302) along unasuperficie guide tapered loop (304), and the guide surface of tapered loop (304) an outer perimeter ahúsadesde loop fluid jet into an inner perimeter loop defluido jet and the orifice fluid jet loop (320) a composite guide (128) comprising: an insert proximal guide positioned within the mounting cavity (206) including the insert deguía proximal surface of plug guide (210) substantially flush with body wall decatéter inner (212 ) and the insert proximal guide configured to guide an instrument alláde mounting cavity (206) and into the bore of the catheter (202), and a distal guide including the guide surface of tapered loop (304) and being surface intermediate guide (310) hole coupled catheter flush manner with an edge (308) of the deguía surface tapered loop (304), wherein the distal guide is configured to guide the instrument lasuperficie guide intermediate (310), the tapered guide surface loop (304) and through the fluid jet projecting loop (300).Un catéter (100) que comprende: un cuerpo de catéter (104) con un orificio de catéter (202) que se extiende desde una porción proximal decatéter (112) hasta una porción distal de catéter (114) un conjunto de colector (102) acop
