Cook® Amplatz Sheath – Opaque Send Enquiry Product Information Used to maintain a previously established nephrostomy tract. Additional Information FURTHER INFORMATION Related products Add to Enquiry Cook® Balloon Ureteral DilatorSend Enquiry Add to Enquiry Cook® HiWire™ Nitinol Core Wire GuideSend Enquiry Add to Enquiry Cook® PERC NCircle Nitinol Tipless Stone ExtractorSend Enquiry Add to Enquiry Cook® Roadrunner® PC Wire GuideSend Enquiry Add to Enquiry Cook® Urethral Dilator SetSend Enquiry