Improvement in the design of preshaped coronary catheters

Because of the slanted relationship between the origins of coronary arteries and the adjacent sinus, a nonplanar angle of 45 degrees is proposed to be incorporated In the distal part of the preshaped coronary catheters that need the aortic valve for direction toward the coronary ostla. This angulation will Improve the catheter function and reduce the risk of coronary angiography.