The Paclitaxel-eluting balloon “essential” is a rapid exchange catheter (also known as RX) designed for percutaneous transluminal angioplasties of coronary arteries.

The body of the catheter features a combination of a single lumen at the proximal end and a dual lumen at the distal end.

The single lumen at the proximal end allows contrast liquid to pass through between the proximal luer-lock connector and the balloon during in/deflation.

The coaxial dual lumen at the distal end has two functions:

A lumen to carry the contrast liquid used to inflate the balloon, connected to the proximal lumen

A lumen for the guidewire to facilitate and allow the passage of the catheter towards and through the stenosis to be dilated. The maximum diameter of the guidewire must not exceed 0.36 mm = 0.014 inches.