Abstract: A balloon catheter may include a multi-lumen tube having an inflation lumen and a guide wire lumen. The multi-lumen tube may include a proximal end and a distal end and may terminate at a distal tip. The catheter may include an extension tube extending distally from the distal tip of the multi-lumen tube and a dilatation balloon disposed about the multi-lumen tube and the extension tube. The distal tip of the multi-lumen tube may be under the balloon.

Abstract: A balloon catheter may include a multi-lumen tube having an inflation lumen and a guide wire lumen. The multi-lumen tube may include a proximal end and a distal end and may terminate at a distal tip. The catheter may include an extension tube extending distally from the distal tip of the multi-lumen tube and a dilatation balloon disposed about the multi-lumen tube and the extension tube. The distal tip of the multi-lumen tube may be under the balloon.

Abstract: A balloon catheter may include a multi-lumen tube having an inflation lumen and a guide wire lumen. The multi-lumen tube may include a proximal end and a distal end and may terminate at a distal tip. The catheter may include an extension tube extending distally from the distal tip of the multi-lumen tube and a dilatation balloon disposed about the multi-lumen tube and the extension tube. The distal tip of the multi-lumen tube may be under the balloon.

Abstract: A balloon catheter may include a multi-lumen tube having an inflation lumen and a guide wire lumen. The multi-lumen tube may include a proximal end and a distal end and may terminate at a distal tip. The catheter may include an extension tube extending distally from the distal tip of the multi-lumen tube and a dilatation balloon disposed about the multi-lumen tube and the extension tube. The distal tip of the multi-lumen tube may be under the balloon.

Abstract: A renal stent includes a balloon expandable segment intended for deployment in the renal vessel and a self expanding segment intended for deployment in the aortic segment. One or both of the balloon expandable and self expanding segments can be deployed in the ostial region of the renal vessel, typically the renal artery. The balloon expandable segment provides superior radial strength for maintaining dilated diameter of the renal vessel. The self expanding segment expands to conform to the flared ostial and aortic regions of the vessel. The self expanding segment can be balloon dilated to enhance conformance of the self expanding stented segment to the ostial and aortic regions.