| Memokath® 044TW Stent for Treatment of Urethral Stricture||Urethral Stricture||Device: Memokath stenting||Engineers & Doctors Wallsten Medical Group
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| Study to Determine if There Are Specific Clinical Factors to Determine Stent Encrustation||Kidney Stones||N/\A||\"University of California, Irvine|-| Litholink\"
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| Ureteral Stent Length and Patient Symptoms||Kidney Stones||Device: Ureteral Stent||Emory University
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| Drainage of Malignant Extrinsic Ureteral Obstruction Using the Memokath Ureteral Stent||Ureteral Obstruction||Device: Memokath 051 Ureteral Stent||\"Mayo Clinic|-| Engineers & Doctors Wallsten Medical Group\"
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| A Prospective Comparison Between Ureteral Stent and Nephrostomy Tube for an Urgent Drainage of Obstructed Kidney (JJVsPCN08)||Kidney Disease||Device: nephrostomy tube and ureteral stent||Rabin Medical Center
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