System aspirate thrombi and drug delivery, which include suction catheter, has proximal end, distal end and wall with supply chamber, there is the distal end of proximal end, open distal end and inner wall surface adjacent apertures with suction chamber, with the far-end or proximate distal ends at least one aperture, to supply chamber, it is in fluid communication, with suction chamber and positioned at the open suction chamber of nearside, whereinAt least one hole be configured to creation spray pattern, that is, lead to the inner wall surface lumen encountered, so as to collision inner wall surface spray pattern cause to be changed into can substantially be formed at least within be distally-oriented to distal end flow adjustment suction lumen.
