Cardiothoracic Surgery, Emergency Medicine, Respiratory Medicine, General Surgery.

The stylet tip features a tapered (conical) design, ensuring safe and effective insertion while preventing over-insertion that could cause injury to the patient's internal organs.

The catheter shaft and tip are reinforced with radiopaque markers for enhanced imaging visibility; clearly marked graduations along the shaft facilitate precise positioning and easy operation by physicians.

Oval-shaped side holes are arranged in an orderly pattern, ensuring smooth and unobstructed drainage.