A thrombectomy catheter, comprising: a catheter tube extending from a proximal portion to a distal portion and including a catheter lumen extending between the proximal portion and the distal portion; a high pressure tube extending through the catheter lumen from the catheter proximal portion toward the catheter distal portion, the high pressure tube configured for communication with a fluid source near the catheter proximal portion; a fluid jet emanator in communication with the high pressure tube , the fluid jet emanator having at least one jet orifice for directing at least one fluid jet from said fluid jet emanator through the catheter lumen along a longitudinal axis; an outflow orifice located along a catheter perimeter of the catheter distal portion; an entrainment inflow orifice positioned along the catheter distal portion; and an accessory device (162; 200; 250; 300; 400; 450; 500; 550) disposed within the catheter lumen , the accessory device configured to move rotationally and longitudinally independently of the catheter tube, wherein the accessory device (162; 200; 250; 300; 400; 450; 500; 550) comprises a guidewire (162; 202; 252; 402; 452; 552) having a proximal end portion and a distal end portion; characterised in that the guidewire (162; 202; 252; 402; 452; 552) has a predetermined bend at a distance (D) from a distal tip of the guidewire (162; 202; 252; 402; 452; 552), the guidewire (162; 202; 252; 402; 452; 552) is configured to deflect a portion of the catheter tube positioned distal to the bend , and the guidewire (162; 202; 252; 402; 452; 552) has a stiffness that is less than a stiffness of the proximal portion of the catheter tube and greater than a stiffness of the distal portion of the catheter tube . a catheter tube extending from a proximal portion to a distal portion and including a catheter lumen extending between the proximal portion and the distal portion; a high pressure tube extending through the catheter lumen from the catheter proximal portion toward the catheter distal portion, the high pressure tube configured for communication with a fluid source near the catheter proximal portion; a fluid jet emanator in communication with the high pressure tube , the fluid jet emanator having at least one jet orifice for directing at least one fluid jet from said fluid jet emanator through the catheter lumen along a longitudinal axis; an outflow orifice located along a catheter perimeter of the catheter distal portion; an entrainment inflow orifice positioned along the catheter distal portion; and an accessory device (162; 200; 250; 300; 400; 450; 500; 550) disposed within the catheter lumen , the accessory device configured to move rotationally and longitudinally independently of the catheter tube, wherein the accessory device (162; 200; 250; 300; 400; 450; 500; 550) comprises a guidewire (162; 202; 252; 402; 452; 552) having a proximal end portion and a distal end portion; the guidewire (162; 202; 252; 402; 452; 552) has a predetermined bend at a distance (D) from a distal tip of the guidewire (162; 202; 252; 402; 452; 552), the guidewire (162; 202; 252; 402; 452; 552) is configured to deflect a portion of the catheter tube positioned distal to the bend , and the guidewire (162; 202; 252; 402; 452; 552) has a stiffness that is less than a stiffness of the proximal portion of the catheter tube and greater than a stiffness of the distal portion of the catheter tube . <EOS>