Ureteral Catheters, Bladder Catheters, Systems, Kits and Methods for Inducing Negative Pressure to Increase Renal Function

A bladder catheter comprising (a) a proximal portion;

• and (b) a distal portion, the distal portion comprising a retention portion that comprises one or more protected drainage holes, ports or perforations and is configured to establish an outer periphery or protective surface area that inhibits mucosal tissue from occluding the one or more protected drainage holes, ports or perforations upon application of negative pressure through the catheter.

11-19. (canceled)

(canceled)

29-30. (canceled)

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

• (a) at least one ureteral catheter, the at least one ureteral catheter comprising a distal portion for insertion within the patient's kidney and a proximal portion;
• (b) a bladder catheter comprising a distal portion for insertion within the patient's bladder and a proximal portion for receiving a pressure differential, wherein the pressure differential causes fluid from the kidney to be drawn into the ureteral catheter(s), through both the ureteral catheter(s) and the bladder catheter, and then outside of the patient's body, the pressure differential being applied to increase, decrease and/or maintain fluid flow therethrough, wherein at least one of the at least one ureteral catheter(s) or the bladder catheter comprises (a) a proximal portion;
• and (b) a distal portion, the distal portion comprising a retention portion that comprises one or more protected drainage holes, ports or perforations and is configured to establish an outer periphery or protective surface area that inhibits mucosal tissue from occluding the one or more protected drainage holes, ports or perforations upon application of differential pressure through the catheter.

(canceled)

43-44. (canceled)

46-51. (canceled)