Patent ID: 6893414

Claim:
A system for percutaneous infusion and aspiration of an internal wound site, the system comprising: a catheter assembly comprising: an aspiration catheter having a proximal section and an opposing distal section, the aspiration catheter bounding a first lumen extending along the length thereof, at least one port being formed on the distal section of the aspiration catheter so as to communicate with the first lumen; and an infusion catheter having a proximal section and an opposing distal section, the infusion catheter bounding a second lumen extending along the length thereof at least one port being formed on the distal section of the infusion catheter so as to communicate with the second lumen, at least a portion of the aspiration catheter or infusion catheter being disposed within the lumen of the other of the aspiration catheter or infusion catheter, the distal section of the aspiration catheter and the distal section of the infusion catheter being spaced apart from each other so as not to be disposed within the lumen of the other; a medication reservoir in fluid communication with the proximal section of the infusion catheter; a first pump adapted to transfer fluid from the medication reservoir to the infusion catheter; an aspiration reservoir in fluid communication with the proximal section of the aspiration catheter; a second pump adapted to draw fluid from the aspiration catheter to the aspiration reservoir; and an electronic controller which selectively controls both the flow rate of the fluid through the infusion catheter and the flow rate of fluid through the aspiration catheter.