SYSTEM AND PROCEDURE FOR PLACING A MEDICAL DEVICE PROXIMATE AN OSTIAL LESION USING A CATHETER ASSEMBLY

摘要

A catheter system and method 10 for placing a medical device proximate an ostial lesion The catheter system has a guide catheter with a proximal end and a distal end A sheath with an internal lumen surrounds the guide catheter The sheath has a near end and a far end A cavity is defined between the outside of the guide catheter and the inside of the sheath One or more longtitudinal connecting components extend axially within the cavity with an actuating mechanism An ostial locating member extends from the far end of the sheath so that the ostial locating member lies outside the guide catheter The ostial locating member has at least two flexible, radially extending struts that terminate with radio-opaque feet that lie in an ostial plane when they are advanced in a distal direction from outside the distal end of the guide catheter