Chest ports are inserted by ultrasound puncture and cannulation of a vein in the infra/supra-clavicular area; they consist of a reservoir and a catheter connected to it.
The reservoir can be made of completely radiotranparent material (plastic) or a mixture of plastic (resins of various types) and metal (usually, titanium); depending on the depth of the pocket, it will be advisable to choose a standard reservoir (height about 12mm) or 'low profile' (about 10mm) or 'very low profile' (about 8mm).
The catheter can be made of silicone or polyurethane, without significant differences in biocompatibility between the two materials. Evidence from the literature suggests that we should avoid valved catheters (greater risk of malfunction) and transparent silicone catheters (greater fragility).