Side branch stent with split proximal end

Details Side branch stent with split proximal end Side branch stent with split proximal end

A - Human Necessities

61

F

A61F 2/06 (2006.01)

Patent

CA 2480369

The method for use of the present invention stent and stent delivery system is to insert a first guidewire into the branch vessel and advance the stent delivery system until the marker at the distal end of the split proximal end is aligned with the downstream edge of the sidebranch ostium. The balloon is then inflated to deliver the stent into the sidebranch. If the two zone balloon is being used as a stent delivery system, the initial inflation will cause the split proximal end to flare apart. If the stent is delivered on a standard balloon angioplasty catheter, then a second balloon of larger diameter would be used to post-dilate the proximal end of the split end stent. A stent is then advanced into the main branch and deployed, further spreading the split proximal and of the split end sidebranch stent outward against the wall of the main branch. A guidewire is then placed through the main branch stent and the opening into the sidebranch is enlarged using balloon inflation. The final result is a double layer of metal at the ostium of the sidebranch where additional anti-restenosis drug elution is desirable.

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