Occlusion catheter for the ascending aorta

An occlusion catheter for the ascending aorta comprising:

• a catheter tube having at least a first lumen and a second lumen independent of each other;
• and
• a balloon provided on the outer circumference of the distal end of said catheter tube for being inflated/deflated in accordance with supply or drainage of the fluid through said first lumen in order to obstruct the blood flow within the ascending aorta when inflated, said balloon having a configuration with a concavity on the outer surface at least when inflated and being joined to said catheter tube in said concavity,
• said catheter tube being provided with a side aperture in the side wall of said catheter tube in the different position from said concavity of said balloon, for communicating the outside of said catheter tube and said second lumen to enable release of a drug from said side aperture by supplying the drug through said second lumen.

An occlusion catheter for the ascending aorta comprising:

• a catheter tube having at least a first lumen and a second lumen independent of each other;
• and
• a balloon provided on the outer circumference of the distal end of said catheter tube for being inflated/deflated in accordance with supply or drainage of the fluid through said first lumen in order to obstruct the blood flow within the ascending aorta when inflated, said balloon having a configuration with a depression in a part of the center of said balloon at least when inflated and being joined to said catheter tube in said depression,
• said catheter tube being provided with a side aperture on the side thereof in said depression of said balloon, for communicating the outside of said catheter tube and said second lumen to enable release of a drug from said side aperture by supplying the drug through said second lumen.

An occlusion catheter for the ascending aorta comprising:

• a catheter tube having two or more lumens, including at least a first lumen and a second lumen formed therewithin;
• a balloon provided on the outer circumference of the distal end of said catheter tube for being inflated/deflated in accordance with supply or drainage of the fluid through said first lumen in order to obstruct the blood flow within the ascending aorta when inflated,
• said catheter tube being provided with a side aperture in the position closer to the proximal end than said balloon for communicating the outside of said catheter tube and said second lumen to enable release of a drug from said side aperture by supplying the drug through said second lumen;
• and
• a valve provided within said second lumen having a structure capable of passing a guide wire therethrough and shutting the fluid flow at least when the guide wire is not passed.

A method of using an occlusion catheter for the ascending aorta, comprising the steps of:

• making an incision or a hole in the chest to provide access to the ascending aorta from the outside and creating an opening at an insertion site of the ascending aorta, then expanding said opening with a dilator;
• inserting the occlusion catheter for the ascending aorta into the ascending aorta through said opening and fixing the occlusion catheter to the ascending aorta;
• placing a balloon in a proper indwelling position and inflating the balloon to occlude the ascending aorta;
• and
• releasing a cardiac muscle protective drug from a drug release aperture to deliver the cardiac muscle protective drug to the vicinity of the coronary ostium.