The resonance stent is specifically designed for extrinsic compression to mitigate many of the problems encountered with traditional plastic ureteral stents and other forms of treatment. The optimized compressive and radial strength of Resonance allows the stent to remain indwelling for up to 12 months. This long indwelling time reduces the need for frequent stent changes and may thereby decrease the risk of infection. The tightly wound metallic coil maintains its patency so that urine can drain continuously under severe extrinsic compression. Resonance is introduced coaxially through a sheath and removed using standard cystoscopic techniques.