Cook® Amplatz Sheath – Clear with Radiopaque Stripe Send Enquiry Product Information Used to maintain a previously established nephrostomy tract. Additional Information FURTHER INFORMATION Related products Add to Enquiry Cook® NCircle Tipless Stone ExtractorSend Enquiry Add to Enquiry Cook® NTrap Stone Entrapment and Extraction DeviceSend Enquiry Add to Enquiry Cook® Peel-Away Introducer SetsSend Enquiry Add to Enquiry Cook® Urethral Dilator SetSend Enquiry Add to Enquiry Cook® Williams Cystoscopic Injection NeedleSend Enquiry