Abstract: Balloon catheter systems and methods of use are provided. The balloon catheter system may comprise an elongated catheter shaft, having a proximal end and a distal end, enclosing a guidewire, a balloon system, and a balloon retrieval system. The balloon catheter system may comprise the guidewire, the balloon system, comprising a balloon positioned along the guidewire, and the balloon retrieval system. The balloon retrieval system may comprise a flowering portion configured to expand from the distal end of the elongated catheter shaft, and a sheath portion positioned within the elongated catheter shaft. The flowering portion may be configured to funnel the balloon, in a deflated configuration, into the sheath portion, and the sheath portion may be configured to enable the balloon, in the deflated configuration, to be pulled through a central cavity therethrough.

Abstract: Perfusion dilatation catheters and methods of use are provided. The perfusion dilatation catheter may comprise an elongated catheter shaft comprising a proximal end and a distal end. The elongated catheter shaft may be configured to enclose a plurality of lumens comprising a proximal balloon inflation lumen and a distal balloon inflation lumen, and may be configured to house at least one inflation port configured to supply at least one inflation medium through the proximal balloon inflation lumen and the distal balloon inflation lumen. The perfusion dilatation catheter may further comprise a proximal balloon system comprising a proximal balloon positioned along the elongated catheter shaft and the proximal balloon inflation lumen, and a distal balloon system comprising a distal balloon positioned along the elongated catheter shaft, distal to the proximal balloon, and the distal balloon inflation lumen.