Patent ID: 8246689

Claim:
A ureteral stent comprising: a distal region comprising a tubular body defining a longitudinal axis and at least one lumen, and the distal region including a distal retention structure for maintaining a position of the ureteral stent with respect to a kidney; and a proximal region in fluid communication with the distal region and comprising: a distal portion in communication with the distal region; a pliable portion in communication with the distal portion and disposable within a ureteral orifice, the pliable portion compressible upon the exertion of a pressure by the ureteral orifice, the pliable portion includes a section that is softer than the distal portion and the distal region; and a proximal portion in communication with the pliable portion and comprising at one or more flexible filaments forming at least one loop, the filaments having a length sufficient to remain within a bladder when the distal retention structure is positioned within the kidney.