Cook® Amplatz Renal Introducer Product Information Used for nephrostomy tract dilation and the placement of a sheath. Additional Information FURTHER INFORMATION Related products Add to cart Cook® Balloon Ureteral Dilator $0.00 Add to cart Cook® NCompass Nitinol Stone Extractor $0.00 Add to cart Cook® NTrap Stone Entrapment and Extraction Device $0.00 Add to cart Cook® Roadrunner® PC Wire Guide – Double Flexible $0.00 Add to cart Cook® Williams Cystoscopic Injection Needle $0.00