Distal access catheters are used to introduce interventional or diagnostic devices into the vasculature in the neurovascular system, peripheral vasculature.

Distal access catheters are distal pass-through catheters for diagnostic, device or therapeutic purposes based on the principle of minimally invasive interventional therapy, extending from the femoral artery into the arch of the aorta, and then into the carotid or even cerebral arterial ring. It can be used for both ischemic surgery to assist stent placement for intracranial stenosis, as well as with thrombolysis stents to retrieve thrombus; and for hemorrhagic surgery to assist embolization of aneurysms, as well as for stent placement.