Patent ID: 7163521

Claim:
A method for percutaneous infusion and aspiration of an internal wound site, the method comprising: infusing a wound site with a dose of a solution at a periodic interval, the act of infusing being controlled by an electronic controller aspirating the wound site at a first flow rate during the infusion of the solution and for a first time period thereafter, the act of aspirating at the first flow rate being controlled by the electronic controller; and aspirating the wound site at a second flow rate and for a second time period after expiration of the first time period but prior to the next infusing of the solution, the second flow rate being greater than the first flow rate, the act of aspirating at the second flow rate being controlled by the electronic controller, wherein the acts of infusing, aspirating at the first flow rate, and aspirating at the second flow rate are all controlled by the same common electronic controller.