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US 10,327,935 B2Granted
Stent graft with internal constraining mechanism
AssigneeCook Medical Technologies LLC
InventorsBrandon J. Davis, Jarin A. Kratzberg, Blayne A. Roeder, Edwin E. Macatangay, Davorin K. Skender
Life of this patent
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Abstract
A stent graft assembly having a tubular body and a constraining patch attached to the interior surface of the tubular body. The constraining patch delineates a small passageway close to the inner surface of the tubular body. A cannula may extend through the passageway.
Claims20
A stent graft assembly comprising:
- A delivery catheter;
- a tubular body disposed over the delivery catheter and having a first open end, a second open end, a main lumen between the first open end and the second open end, and an inner surface surrounding the main lumen;
- a patch disposed in the main lumen and attached to the inner surface and defining a longitudinally extending passageway between the inner surface and the patch, the patch having a first unattached end and a second unattached end, wherein the delivery catheter extends through the longitudinally extending passageway between the inner surface and the patch and is preloaded within the longitudinally extending passageway;
- wherein the passageway is in fluid communication with the main lumen through the first unattached end and the second unattached end;
- wherein neither unattached end is in communication with an exterior of the graft;
- and
- wherein in a first configuration the longitudinally extending passageway of the patch is open and configured to temporarily constrain a portion of the delivery catheter within the passageway and in a second configuration is closed and lies flat against a wall of the tubular body.
4 more elements
A stent graft assembly comprising:
- a tubular body having a main lumen and an inner surface surrounding the main lumen;
- a patch disposed in the main lumen, an inflow end and an outflow end, the patch comprising a piece of material attached to the inner surface that forms a passageway that extends at least longitudinally along the patch and has a first open end and a second open end;
- wherein the passageway has a first configuration where a portion of the patch extends away from the inner surface and the passageway is open, and a second configuration where the patch lays flat against the inner surface and the passageway is closed, and
- wherein in both the first and second configurations the patch does not obstruct fluid flow through the main lumen and the outflow end.
1 more element
A stent graft delivery assembly comprising:
- a delivery catheter;
- a stent graft disposed over the delivery catheter having a main lumen and an inner surface surrounding the main lumen;
- a patch disposed in the main lumen and attached to the inner surface;
- the patch forming a constraining tube having a longitudinal constraining lumen extending therethrough, wherein the constraining tube has first and second open ends and wherein neither open end is exposed to an exterior of the stent graft,
- wherein the delivery catheter extends through the constraining tube and is preloaded within the constraining tube when the stent graft is deployed, and
- wherein in a first configuration the lumen of constraining tube is open and configured to temporarily constrain a portion of the delivery catheter within the constraining tube and in a second configuration lies flat against the inner surface.
3 more elements
A stent graft assembly comprising:
- a delivery catheter for delivering the stent graft to the body lumen;
- a stent graft disposed over the delivery catheter having a main lumen and an inner surface surrounding the main lumen, the stent graft having a plurality of fenestrations in a side wall of the stent graft;
- a patch disposed entirely within the main lumen and attached to the inner surface at a location offset from each of the plurality of fenestrations;
- the patch having a longitudinal constraining lumen extending therethrough,
- wherein the delivery catheter extends through the longitudinal constraining lumen and is preloaded within the constraining tube when the stent graft is deployed, and
- wherein the patch temporarily constrains the delivery catheter against the inner surface and away from the plurality of fenestrations and at least partially restricts latitudinal movement of the delivery catheter within the main lumen.
3 more elements
Dependencies are inferred from the claim text.