The product is a non-tapered single-lumen catheter. The inner wall material of the catheter is polytetrafluoroethylene and polyolefin. The catheter body employs a dual-layer composite structure of stainless steel coils and braided wires. The outer wall material is polyurethane, PEBAX, and polyamide, with a hydrophilic coating on the outer surface. The distal section is steam-shapeable and features radiopaque markers. The hydrophilic coating materials are Hydak B-23K and Hydak A-15. The package also includes an accessory introducer sheath and a steam-shaping rod. Sterilized with ethylene oxide, for single use only.