Stent graft having a closeable fenestration

摘要

A radially expandable stent graft 10 for placement in a lumen of a patient is disclosed. The stent graft 10 comprises: a prosthetic trunk 100 comprising a trunk lumen 110 there-through; a prosthetic branch 300 comprising a branch lumen 310 extending there-through, wherein the branch lumen 310 is in fluid communication with the trunk lumen 110 through a lateral opening 115 in the trunk lumen 110; a valve 150 comprising a fenestration 152 for providing temporary lateral access into the trunk lumen 110, the valve 150 positioned opposite the lateral opening 115 in the trunk lumen 110; and a valve actuator. The valve actuator closes the fenestration 152 as the stent graft 10 expands.

主权项

1. A radially expandable stent graft for placement in a lumen of a patient, the stent graft comprising:
a prosthetic trunk comprising a trunk lumen therethrough; at least one zig-zag stent extending around the prosthetic trunk, the stent comprising a plurality of struts and bends, the bends being between adjacent struts; a valve comprising a fenestration openable into the trunk lumen; and a tension member extending from the valve to an anchor point on the prosthetic trunk spaced from the valve, such that radial expansion of the stent graft pulls the tension member so as to close the fenestration.