Patent ID: 8048171

Claim:
A ureteral stent comprising an elongated stent body and a first urologically beneficial agent, said elongated stent body comprising a kidney portion adapted to occupy the kidney upon implantation, a ureter portion adapted to occupy the ureter upon implantation, and a bladder portion adapted to occupy the bladder upon implantation, and said ureteral stent being adapted to release said first urologically beneficial agent such that at least 50% of a cumulative total release of the first urologically beneficial agent that occurs during a period corresponding to the first 7 days of stent implantation is released from the kidney portion of the stent, wherein the kidney portion constitutes 10-20% of the length of the stent, the ureter portion constitutes 60-80% of the length of the stent, and the bladder portion constitutes 10-20% of the length of the stent, and wherein a cumulative release of said first urologically beneficial agent from the bladder portion during said period is at least two times a cumulative release of said first urologically beneficial agent from the ureter portion during said period, and wherein a cumulative release of the first urologically beneficial agent from the kidney portion during said period is at least two times the cumulative release of the first urologically beneficial agent from the bladder portion during said period.