Cook® Amplatz Sheath – Opaque Product Information Used to maintain a previously established nephrostomy tract. Additional Information FURTHER INFORMATION Related products Add to cart Cook® Grasping Forceps $0.00 Add to cart Cook® HiWire™ Nitinol Core Wire Guide $0.00 Add to cart Cook® NTrap Stone Entrapment and Extraction Device $0.00 Add to cart Cook® Roadrunner® PC Wire Guide $0.00 Add to cart Cook® Urethral Dilation Access Set $0.00