a coronary sinus catheter introducer system in which an introducer is installed in the right atrium of the cardiovascular system of a patient for delivery of a coronary sinus catheter into the coronary sinus . a bend near the distal end of the introducer enables placement of the end of the introducer into the coronary sinus opening and within the coronary sinus . a soft pliable tip end provided on the introducer minimizes abrasion of the coronary sinus and its opening by the introducer .