An endoluminal prosthesis is provided with an improved fixation system for coupling
the endoluminal prosthesis to an inner wall of a lumen and to reduce distal migration.
According to an embodiment of the present invention, a laterally protruding member
atraumatically engages the ostium of a side or branch vessel. The protruding member
may be fixed to a portion of a prosthesis. In one embodiment the protruding member
is provided on a modular fixation device for initial fixation within the body lumen
with the finger member within the side or branch vessel. A primary endoluminal
prosthesis is then fixed to the modular fixation device to bypass a diseased portion
of the anatomy.
