Some embodiments are directed to a deployment system for deploying a stent graft within a passageway, including a delivery catheter having an outer sheath, a proximal end, and a distal end, a stent having a first end and a second end, a graft having a first end and a second end, and at least one con
Some embodiments are directed to a deployment system for deploying a stent graft within a passageway, including a delivery catheter having an outer sheath, a proximal end, and a distal end, a stent having a first end and a second end, a graft having a first end and a second end, and at least one connecting element extending from the second end of the stent to the first end of the graft so as to connect the stent to the graft. In some embodiments, the stent can be supported within the outer sheath at a first axial position in a collapsed state, and the graft can be supported within the outer sheath at a second axial position different than the first axial position in a collapsed state, such that the stent does not overlap or substantially overlap the graft in the collapsed state within the deployment system.
대표청구항▼
1. A deployment system for deploying a stent graft within a passageway, comprising: a delivery catheter comprising an outer sheath, a proximal end, and a distal end;a stent having a first end and a second end, the stent being supported within the outer sheath at a first axial position in a collapsed
1. A deployment system for deploying a stent graft within a passageway, comprising: a delivery catheter comprising an outer sheath, a proximal end, and a distal end;a stent having a first end and a second end, the stent being supported within the outer sheath at a first axial position in a collapsed state within the deployment system;a graft having a first end and a second end, the graft being supported within the outer sheath at a second axial position in a collapsed state within the deployment system;at least one connecting element extending from the second end of the stent to the first end of the graft so as to connect the second end of the stent to the first end of the graft; andone or more retraction elements attached to the graft, the one or more retraction elements extending to the proximal end of the delivery catheter, the one or more retraction elements being releasably attached to the second end of the graft;wherein the second axial position is different than the first axial position such that no substantial portion of the stent overlaps any portion of the graft while the stent and graft are in the collapsed state within the deployment system;wherein as the one or more retraction elements are retracted in a proximal direction the graft inverts and retracts so that at least a portion of the graft overlaps a portion of the stent in a deployed state. 2. The deployment system of claim 1, wherein the at least one connecting element comprises sutures, wires, strands, metal struts, or plastic struts. 3. The deployment system of claim 1, further comprising a second stent configured to be expandable within the graft. 4. The deployment system of claim 3, further comprising a third stent or stent segment configured to be expandable at least partially within the graft. 5. The deployment system of claim 1, wherein the graft is a bifurcated graft. 6. The deployment system of claim 1, wherein the one or more retraction elements are configured to invert and retract the graft before the stent is deployed within the passageway. 7. The deployment system of claim 1, wherein the one or more retraction elements are configured to invert and retract the graft so that substantially all of the graft overlaps the stent in the deployed state. 8. The deployment system of claim 1, wherein the graft is coaxially positioned relative to the stent. 9. The deployment system of claim 1, wherein at least one of the graft and the stent is tubular. 10. The deployment system of claim 1, wherein the graft comprises a main body, a first branch segment, and a second branch segment. 11. The deployment system of claim 10, further comprising a second stent supported in at least one of the first branch segment and the second branch segment. 12. The deployment system of claim 1, wherein the catheter further comprises an inner core, the inner core extending through the outer sheath and being axially moveable with respect to the outer sheath. 13. The deployment system of claim 1, wherein the stent is self-expandable. 14. The deployment system of claim 1, wherein the stent is balloon expandable.
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이 특허에 인용된 특허 (359)
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