Patent ID: 7041097

Claim:
A coronary sinus accessing system, comprising: a. an elongated tubular support member configured for intravascular advancement to a right atrium, comprising: an elongated shaft which has proximal and distal shaft sections and a first lumen extending within the proximal and distal shaft sections; and a distal tip which has an opening providing exterior access to, and in fluid communication with, the first lumen in the elongated shaft and which is oriented at an angle with respect to a longitudinal axis of the shaft; b. a guide member which has proximal and distal shaft sections, which is disposed within the first lumen of the tubular support member, which is configured for longitudinal movement through the first lumen and out the distal tip opening and which has a distal extremity configured for entry into a coronary sinus ostium; and c. a stabilizing member deployable outside the tubular support member through an opening at the distal section of the elongated shaft and configured to maintain alignment of the tubular support member within the right atrium, the tubular support member configured to rotate about a longitudinal axis of the stabilizing member when the stabilizing member is deployed outside the tubular support member.