US Patent 10226606 Ureteral stents

Embodiments disclosed herein includes materials, devices, systems, and methods for utilizing a stent (100, 200, 300, 400, 500, 600, 700), reducing movement of a stent within an ureter, securing the stent within the ureter, aiding in insertion or retrieval of a stent from the ureter, preventing irritation of the trigone, or combinations thereof. In one embodiment, a stent is disclosed including at least one retaining structure (228, 328, 428, 528, 628, 728) positioned at least proximate a bladder configured to irritate a trigone less than a curled retaining structure.