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US 2022/0087836 A1Published application
Side branch stent graft
AssigneeCook Medical Technologies LLC
InventorDavid Ernest Hartley
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AssigneeCook Medical Technologies LLC
InventorDavid Ernest Hartley
Estimating the term…
A joining arrangement between a main tube and a side arm (5) in a side arm stent graft (1). The side arm (5) is stitched into an aperture (11) in the main tube and is in fluid communication with it. The aperture is triangular, elliptical or rectangular and the side arm is cut off at an angle to leave an end portion having a circumferential length equal to the circumference of the aperture. The side arm can also include a connection socket (76) comprising a first resilient ring (79) around the arm at its end, a second resilient ring (80) spaced apart along the arm from the first ring and a zig zag resilient stent (82) between the first and second rings. The zig-zag resilient stent can be a compression stent. Both the main tube and the side arm are formed from seamless tubular biocompatible graft material.
A side arm stent graft comprising a main tube of a biocompatible material and a side arm tube of a biocompatible material extending from the main tube at an acute angle thereto and being stitched thereto and in fluid communication therewith, wherein the stent graft further comprises an elongate aperture in the main tube and having a periphery around which the side arm is stitched, the elongate aperture having a circumferential length and an end of the side arm tube including a beveled end portion having a circumferential length equal to the circumferential length of the elongate aperture, whereby the side arm tube is stitched to the main tube around the periphery of the elongate aperture.
A side arm stent graft comprising a main tube of a biocompatible material and a side arm tube of biocompatible material extending from the main tube at an angle thereto and stitched thereto and being in fluid communication therewith, wherein the side arm stent graft further comprises a triangular aperture in the main tube around the periphery of which the side arm tube is stitched, the triangular aperture having a base and a pair of sides, and an end of the side arm tube having a bevel to leave an end portion having a circumferential length equal to the length of the base of the triangular aperture and a length of the bevel equal to the length of the side of the triangular aperture, whereby the side arm tube is stitched to the main tube around the periphery of the triangular aperture with the end portion abutting the base of the triangular aperture and the bevel abutting the sides of the triangular aperture.
A side arm stent graft comprising a main tube of a biocompatible material and a side arm tube of a biocompatible material extending from the main tube and being stitched thereto and in fluid communication therewith, wherein the side arm stent graft further comprises an elongate aperture in the main tube and an angled inner end on the side arm tube, the periphery of the inner end on the side arm tube being stitched to the periphery of the aperture whereby the circumference of the joined region of the main tube and side arm tube increases along the length of the stitching at a first end of the joined region to the sum of the circumferences of the main tube and the side arm at the other end of the joined region.
Dependencies are inferred from the claim text.