Gracia Enterprises

It looks like you're asking about an Amplatz-type renal sheath—a medical device used in percutaneous nephrolithotomy (PCNL) and other urological procedures.Amplatz Renal Sheath Overview

• The Amplatz renal sheath (also called an Amplatz sheath or dilator) is used in PCNL to create and maintain a stable access tract to the kidney.
• It helps in the removal of kidney stones by providing a working channel for instruments like nephroscopes, lithotripters, and stone retrieval devices.
• Made of radiopaque material, allowing for fluoroscopic visibility during the procedure.

Types & Sizes-Typically comes in sizes 24 Fr to 30 Fr (French gauge), depending on the size of the access tract