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® NCircle Delta Wire Tipless Stone ExtractorSend Enquiry Add to Enquiry Cook® NGage™ Nitinol Stone ExtractorSend Enquiry Add to Enquiry Cook® Roadrunner® PC Wire Guide – Double FlexibleSend Enquiry Add to Enquiry Cook® Urethral Dilation Access SetSend Enquiry