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® Fascial Dilator Set – UrethralSend Enquiry Add to Enquiry Cook® NGage™ Nitinol Stone ExtractorSend Enquiry Add to Enquiry Cook® Ureteral Dilator SetSend Enquiry Add to Enquiry Cook® Williams Cystoscopic Injection NeedleSend Enquiry