Nephrostomy catheter introduction needle

A nephrostomy catheter introduction needle is a sterile, sharp, hollow metal instrument used to create the initial percutaneous puncture into the kidney for urinary drainage. It is designed to facilitate the insertion of a guidewire using the Seldinger technique and may allow for fluid aspiration during placement, with some models featuring an intraluminal stylet to enhance rigidity.

This device is intended for single-use only and is supplied sterile. Regulatory oversight focuses on its design, materials, and sterility as a sharp, invasive instrument used in percutaneous renal access, with classification determined by jurisdiction based on its intended use and risk profile.