Patent ID: 8500683

Claim:
A catheter system comprising: (a) an aspiration catheter comprising an elongated tube having an aspiration lumen ending in an open distal end and an inflatable balloon at said distal end with a separate balloon inflation lumen and a guide wire lumen; and (b) at least one of: (i) a total occlusion catheter insert comprising an elongated tube having an open distal end and configured to deliver an acidic dissolution fluid at a first predetermined rate through the end thereof; and (ii) a partial occlusion catheter insert comprising an elongated tube having a sealed distal end, an inflatable balloon, with a separate inflation lumen, at said distal end and multiple infusion ports individually arranged along the length of the elongated tube at increasing distances proximal to said inflatable balloon and configured to cumulatively deliver an acidic dissolution fluid at a first predetermined rate, wherein said total and partial occlusion catheter inserts are capable of being slidably positioned within said aspiration catheter to produce an annular space at the distal end of said aspiration catheter through which fluid may flow, the annular space being configured for removing the acidic dissolution fluid and debris at a second predetermined rate substantially equal to the first predetermined rate.