Urinary catheter

A ureteral access sheath (UAS) is a medical device commonly used in urological procedures to facilitate the insertion and passage of other instruments, such as ureteral stents or endoscopes, into the ureter.

Ureteral access sheaths are designed to create a clear and protected passage for other medical devices into the ureter during endoscopic procedures.

Ureteral access sheaths are typically made from medical-grade materials, such as polyurethane or polymer combinations. These materials were chosen for their biocompatibility and flexibility.

Ureteral access sheaths are long tubular devices with tapered or rounded tips to facilitate insertion. The near end usually has a hub for connecting other devices.

Some ureteral access sheaths may have a hydrophilic or hydrophobic coating to enhance lubrication and minimize friction during insertion. This helps improve patient comfort and ease of use.

Ureteral access sheaths are designed with safety features, such as a rounded tip, to minimize trauma during insertion. The goal is to create a smooth passage while protecting the delicate ureteral tissue.