Ureteral and bladder catheters and methods of inducing negative pressure to increase renal perfusion

A ureteral catheter, comprising:

• a drainage lumen comprising a distal portion configured to be positioned in a patient's kidney, renal pelvis and/or in the ureter adjacent to the renal pelvis and a proximal portion, the distal portion comprising a retention portion comprising a funnel support comprising at least one sidewall, wherein the funnel support comprises a first diameter and a second diameter, the first diameter being less than the second diameter, the second diameter being closer to an end of the distal portion of the drainage lumen than the first diameter, wherein the funnel support is free of a balloon, wherein the proximal portion of the drainage lumen is essentially free of or free of openings.

A system for inducing negative pressure in a portion of a urinary tract of a patient, the system comprising:

• at least one ureteral catheter comprising a drainage lumen comprising a distal portion configured to be positioned in a patient's kidney, renal pelvis and/or in the ureter adjacent to the renal pelvis and a proximal portion, the distal portion comprising a retention portion comprising a funnel support comprising at least one sidewall, wherein the funnel support comprises a first diameter and a second diameter, the first diameter being less than the second diameter, the second diameter being closer to an end of the distal portion of the drainage lumen than the first diameter, wherein the proximal portion of the drainage lumen is essentially free of or free of openings, and being configured to be extended into a deployed position in which a diameter of the retention portion is greater than a diameter of the drainage lumen portion, wherein the funnel support comprises at least one drainage opening to permit fluid flow into the drainage lumen wherein the funnel support is free of a balloon;
• and
• a pump in fluid communication with the proximal portion of the drainage lumen, the pump being configured for inducing a negative pressure in a portion of the urinary tract of the patient to draw fluid through the drainage lumen of the ureteral catheter.