Abstract: The stent comprises a cylindrical wall formed by meshed wires and a covering layer of elastic material extending on a portion of its length, with an outer surface, and totally embracing the wire mesh.

Abstract: A stent is provided which may be mechanically locked in an expanded diameter. The stent may have several locked diameters or may be locked at different diameters along the axial length of the stent.

Abstract: A method of treating an acute occlusion of the human vasculature as in stroke. The method includes providing a device flexible enough to be steered within the tortuous anatomy and still have the ability to be pushed across a thrombic occlusion. The device further provides two distinct sets of infusion lumens. The method includes advancing the device through the vasculature such that one infusion lumen is located distal to the thrombic occlusion and the other infusion lumen is located proximal to the occlusion. A neuroprotective drug is then infused through an opening distal to the occlusion and a thrombolytic agent infused through an opening proximal to the occlusion thereby dissolving the occlusion while minimizing damage to tissues distal to the occlusion.

Abstract: A balloon catheter having an outer shaft and an inner shaft in which the inner shaft is constructed to protect itself over its entire length and especially in its most vulnerable areas without adversely effecting its flexibility, trackability, or pushability or the catheter's deflation time. The inner shaft can be reinforced to prevent it from collapsing or breaking throughout its length and also improving the deflation time of the balloon.