Stent graft system and method of use
A stent graft system and method of use includes a stent graft for fixation at an attachment site with graft material defining at least one opening having an opening perimeter; a support attached to the graft material; a guide rail attached around the opening perimeter; and a helical anchor having a plurality of coils with a point at one end. The plurality of coils are rotatable around the guide rail to cause the pointed end of the coils to penetrate the graft material and the adjacent tissue in contact with the stent graft to sew the stent graft to the attachment site.
1. A stent graft for fixation at an attachment site comprising:
graft material defining at least one opening having an opening perimeter;
a support attached to the graft material;
a guide rail attached around the opening perimeter;
a helical anchor having a plurality of coils; and
a guide tether attached to the guide rail;
wherein the plurality of coils are rotatable around the guide rail to sew the stent graft to the attachment site, and wherein the guide tether is attached to the guide rail with a fusible link.
2. The stent graft of claim 1 wherein the at least one opening is in an end of the graft material.
3. The stent graft of claim 2 wherein the attachment site is a vessel wall circumference.
4. The stent graft of claim 1 wherein the at least one opening is in a side of the graft material.
5. The stent graft of claim 4 wherein the attachment site is a circum-ostial ring encircling at least one ostium.
6. The stent graft of claim 4 wherein the attachment site is a circum-ostial ring encircling a plurality of ostia.
7. The stent graft of claim 1 further comprising a guide rail support attached to the guide rail.
8. The stent graft of claim 1 wherein the graft material has a felt cuff around the opening perimeter, the plurality of coils being rotatable around the guide rail to sew the stent graft to the attachment site through the felt cuff.
9. A stent graft for fixation at an attachment site comprising:
graft material defining at least one opening having an opening perimeter;
a support attached to the graft material;
a guide rail attached around the opening perimeter;
a helical anchor having a plurality of coils; and
a guide tether attached to the guide rail;
wherein the plurality of coils are rotatable around the guide rail to sew the stent graft to the attachment site, and wherein a solder stub is crimped to the guide rail with a crimpable fitting, a fusible link is attached to the solder stub, and the guide tether is attached to the fusible link.