Related Experiment Video
Updated: May 30, 2026
06:55
Fabrication of Small Caliber Stent-grafts Using Electrospinning and Balloon Expandable Bare Metal Stents
Published on: October 26, 2016
Ureteral stents: new ideas, new designs
Abdulrahman Al-Aown1, Iason Kyriazis, Panagiotis Kallidonis
1Department of Urology, University of Patras, Greece.
Therapeutic Advances in Urology
|July 27, 2011
Summary
Ureteral stents help maintain urinary drainage but cause side effects. New stent designs and materials are being developed to improve long-term efficacy and reduce complications.
Area of Science:
- Urology
- Biomaterials Science
- Medical Device Engineering
Background:
- Ureteral stents are crucial for maintaining urinary drainage.
- Current stents have limitations, including adverse effects and suboptimal long-term efficacy.
- The ideal ureteral stent balancing efficacy and minimal morbidity remains elusive.
Purpose of the Study:
- To review novel ideas and designs in current ureteral stent development.
- To evaluate future prospects for ureteral stent innovation.
- To highlight lessons learned from the cardiovascular stent industry.
Main Methods:
- Literature review of current and emerging ureteral stent technologies.
- Analysis of advancements in stent design, materials, and coatings.
- Comparative assessment with cardiovascular stent industry progress.
Main Results:
- Several novel ureteral stent designs and materials are under evaluation.
- New coatings and compositions aim to reduce stent-related complications.
- Cardiovascular stent industry innovations offer potential, with considerations for tissue differences.
Conclusions:
- Ongoing research focuses on overcoming current ureteral stent limitations.
- Future ureteral stents may incorporate advanced materials and designs for improved patient outcomes.
- Tailoring innovations from other fields, like cardiovascular stents, requires careful adaptation to urological needs.
Related Concept Videos
01:25Urinary Tract Calculi VI: Surgical Management
Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...
01:22Imaging Studies V: Intravenous Urography and Retrograde Pyelography
IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...
01:30Urinary Tract Calculi III: Medical Management
The diagnosis of renal calculi involves several imaging techniques, including non-contrast CT scans and ultrasound. These methods help visualize kidney stones, assess their size and location, and detect possible obstructions. Additionally, Measuring urine pH is useful for diagnosing specific stone types, such as struvite (alkaline pH) and uric acid stones (acidic pH). Cystine stones are primarily linked to cystinuria, a genetic condition. A urinalysis helps detect blood in the urine (hematuria)...
01:22Ureters
The ureters are retroperitoneal tubes located on either side of the vertebral column. They are responsible for transporting urine from each kidney to the urinary bladder. These tubes have thick walls and are approximately 25-30 cm long. Their diameter is around 10 mm at the renal pelvis, gradually narrowing to 1 mm as the ureter obliquely enters the posterior bladder wall through the ureteric orifices. The shape of these orifices is slit-like, which helps to prevent urine backflow toward the...
01:28Urinary Tract Calculi V: Nursing Management
AssessmentSubjective Data: Obtain a detailed health history, including any recent or chronic urinary tract infections, periods of immobilization, previous episodes of renal calculi, and medical conditions such as gout, benign prostatic hyperplasia, or hyperparathyroidism. Review the medication history for drugs that may influence stone formation, including allopurinol, analgesics, loop diuretics, or thiazide diuretics. Document the use of long-term indwelling catheters and any past surgical...