Vascular sheath with variable lumen construction

A system for delivering treatment to a renal artery and a peripheral artery, the system comprising:

• a renal catheter having a distal bifurcation;
• a peripheral catheter;
• and
• an introducer sheath having a first lumen and a second lumen;
• wherein the first lumen is configured to receive the renal catheter and is separated from the second lumen by a flexible separator flap, and the second lumen is configured to receive the peripheral catheter.

A method of delivering treatment to a renal artery and a peripheral artery, the method comprising:

• positioning an introducer sheath in an iliac artery;
• advancing a renal catheter through a first lumen of the introducer sheath to a location at or near the renal artery;
• and
• advancing a peripheral catheter through a second lumen of the introducer sheath to a location at or near the peripheral artery;
• wherein the first lumen and the second lumen of the introducer sheath are separated by a flexible separator flap.

A system for delivering treatment to a renal artery and a peripheral artery, the system comprising:

• a renal catheter;
• a peripheral catheter;
• and
• an introducer sheath having an exit port;
• wherein the introducer sheath is configured to receive the renal catheter and the peripheral catheter and is sized to extend from a patient insertion site past a femoral or iliac artery location near or distal to a patient aortic branch to an opposite femoral or iliac artery location near or distal to the patient aortic branch, such that when the introducer sheath is placed in the patient, the exit port is situated at or near the a femoral or iliac artery location near or distal to the patient aortic branch.

A method of positioning a renal treatment system and a peripheral treatment system, the method comprising:

• positioning an introducer sheath in an iliac artery;
• advancing a renal catheter of the renal treatment system through a lumen of the introducer sheath to a location at or near a renal artery;
• and
• advancing a peripheral catheter of the peripheral treatment system through the lumen of the introducer sheath to a location at or near a peripheral artery.

A system for delivering treatment to a renal artery and a peripheral artery, the system comprising:

• a plurality of renal catheters;
• a plurality of peripheral catheters;
• and
• an introducer sheath having a plurality of renal catheter lumens and a plurality of peripheral catheter lumens;
• wherein each of the plurality of renal catheter lumens is configured to receive at least one of the plurality of renal catheters and is sized to extend from a patient insertion site to a femoral or iliac artery location near or distal to a patient aortic branch, and each of the plurality of peripheral catheter lumens is sized to extend from the patient insertion site to an opposite femoral or iliac artery location near or distal to the patient aortic branch.

A system for delivering treatment to a renal artery and a peripheral artery, the system comprising:

• a plurality of renal catheters, wherein at least one of the renal catheters comprises a distal bifurcation;
• a plurality of peripheral catheters;
• and
• an introducer sheath having a plurality of renal catheter lumens and a plurality of peripheral catheter lumens;
• wherein each of the plurality of renal catheter lumens is configured to receive at least one of the plurality of renal catheters, each of the plurality of peripheral catheter lumens is configured to receive at least one of the plurality of peripheral catheters, and at least one of the renal catheter lumens is separated from at least one of the peripheral catheter lumens by a flexible separator flap.

A method of delivering treatment to a renal artery and a peripheral artery, the method comprising:

• positioning an introducer sheath in an iliac artery, the introducer sheath having a plurality of renal catheter lumens and a plurality of peripheral catheter lumens;
• advancing each of a plurality of renal catheters through a respective renal catheter lumen of the plurality of renal catheter lumens to a location at or near the renal artery;
• and
• advancing each of a plurality of peripheral catheters through a respective peripheral catheter lumen of the plurality of peripheral catheter lumens to a location at or near the peripheral artery;
• wherein at least one of the renal catheter lumens is separated from at least one of the peripheral catheter lumens by a flexible separator flap.