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skos:definition |
SPN: A ureteral stent is a tube-like implanted device that is inserted into the ureter to provide ureteral rigidity and allow the passage of urine. The device may have finger-like protrusions or hooked ends to keep the tube in place. It is used in the treatment of ureteral injuries and ureteral obstruction.,UMD: Stents designed for deployment into the urinary tract between the kidney and the bladder (i.e., the ureter) to provide support and/or to maintain patency within the duct. These devices usually consist of a plastic (e.g., polyurethane) tube with multiple holes and either protrusions or a coil (pigtail) on each end to avoid migration; one end stays in the kidney and the other in the urinary bladder. Ureteral stents are available in several different shapes and sizes, and their surface may be coated to give them special capabilities (e.g., to avoid urine crystallization); in addition, many ureteral stents include radiopaque marks. Ureteral stents are placed using endoscopic procedures or during nephrosto
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