Blood conduit with stent
AssigneesJeng WEI, Tai-Yen SUN
InventorJeng WEI
Life of this patent
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Abstract
A blood conduit with stent has a flexible conduit body and an expandable stent structure. The conduit body has a first opening end through which only an inflow of a blood enters and a second opening end through which only an outflow of the blood leaves. The stent structure includes a plurality of threads adhered to the conduit body and expands in directions intersecting an axial direction of the conduit body. A boundary of one of the threads of the stent structure closest to the second opening end is away from the second opening end with a predetermined distance, thereby preventing blood back flow into the false lumen via a new tear.
Claims20
A blood conduit with stent for use in an implantation into a thoracic aorta, comprising:
- a conduit body having a first opening end through which only an inflow of a blood enters and a second opening end through which only an outflow of the blood leaves;
- and
- a stent structure comprising at least two threads adhered to the conduit body, a boundary of one of the threads closest to the second opening end neighboring the second opening end being away from a boundary of the second opening end with a distance;
- wherein the conduit body has flexibility, the stent structure has expandability, the stent structure expands in a direction intersecting with an axial central line of the conduit body, and the distance is greater than or equal to 2 cm;
- and
- wherein a portion of the conduit body within the distance adheres to an endovascular wall of the thoracic aorta when the implantation is completed.
A blood conduit with stent for use in an implantation into a thoracic aorta, comprising:
- a conduit body having a first opening end through which only an inflow of a blood enters and a second opening end through which only an outflow of the blood leaves;
- and
- at least two threads adhered to the conduit body, a boundary of a first thread of the threads closest to the first opening end neighboring the first opening end being level with or next to a boundary of the first opening end, a boundary of a second thread of the threads closest to the second opening end neighboring the second opening end being away from a boundary of the second opening end with a distance;
- wherein the conduit body has flexibility, the threads have expandability, the threads are expandable in directions intersecting with an axial central line of the conduit body, and the distance is greater than or equal to 2 cm;
- and
- wherein a portion of the conduit body within the distance adheres to an endovascular wall of the thoracic aorta when the implantation is completed.
A blood conduit with stent, comprising:
- a flexible conduit body having a first opening end through which only an inflow of a blood enters and a second opening end through which only an outflow of the blood leaves;
- a first thread adhered to the conduit body and disposed to be closest to a boundary of the first opening end;
- a second thread adhered to the conduit body and disposed to be near a boundary of the second opening end with a boundary of the second thread neighboring the second opening end being away from the boundary of the second opening end with a distance;
- and
- a third thread adhered to the conduit body and disposed within the distance;
- wherein the third thread has a less expansion strength than the second thread, and the distance is greater than or equal to 2 cm.
Dependencies are inferred from the claim text.