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Publication Number
US-11471261-B2
Publication Date
2022-10-18
Expiration Date
Abstract
An endoprosthetic device comprises a tubular main body having a length including proximal and distal portions, the tubular main body having a flexible portion between the proximal and distal portions, and at least one adjustable length docking branch extending laterally from the tubular main body, and having sections bearing a tab or loop graspable by a user, and optionally further having at least one auxiliary branch, and at least one access branch, for assembly with at least one tubular branch body having a laterally extending access branch, using a delivery system including a delivery shaft, and a retrieval capsule and corresponding press-fit retrieval pin and retrieval wire, wherein the delivery shaft is provided with a pivotal slotted housing serving as a user handle for the delivery shaft.
Core Innovation
The invention provides an endoprosthetic device for vascular repair that includes a tubular main body having a proximal portion, a distal portion, and a flexible portion linking the proximal portion and the distal portion. The endoprosthetic device further includes at least one docking branch of adjustable length extending laterally from the tubular main body, and the at least one docking branch is mateable with a proximal stented portion of a tubular branch body to form a vascular graft modular assembly.
The adjustable-length docking branch is associated with a crimped fabric sleeve that enables stretch/curve and is provided with user graspable holding features such as tabs or loops for trimming. The tubular main body also includes at least one tubular body access branch extending laterally, and auxiliary branches can be included with an integrated valve and/or air venting for flushing/perfusion.
The invention also includes a delivery system that combines a sheath, a retrieval capsule, a press-fit retrieval pin, and a retrieval wire to control sheath movement. The sheath confines at least a portion of a tubular branch body that includes a proximal stented portion, a distal stented portion, and a flexible portion linking the proximal and distal stented portions, with a tubular branch body access branch extending laterally from the flexible portion.
Pulling the retrieval wire by a user causes movement of the sheath, removing the sheath from the tubular branch body to deploy the stented portions, while the modular assembly is formed by mating the endoprosthetic device docking branch with the tubular branch body.
Claims Coverage
The disclosed independent claim covers a delivery system that combines a sheath with a retrieval capsule/pin/wire actuation mechanism and a modular vascular graft assembly formed by mating an endoprosthetic device docking branch with a separately delivered tubular branch body. The claim includes four inventive features spanning sheath retrieval control, modular docking between adjustable-length lateral branches and proximal/distal stented portions, and lateral access branches in both the endoprosthetic device and the tubular branch body.
Sheath confinement released by retrieval wire
A delivery system comprising a sheath and a retrieval capsule with a press-fit retrieval pin press-fit within the retrieval capsule, and a retrieval wire having a proximal end and a distal end, wherein pulling the retrieval wire by the user causes movement of the sheath, and wherein the sheath confines at least a portion of the at least one tubular branch body and is removable from the at least one tubular branch body by pulling the retrieval wire.
Modular vascular graft assembly by mating docking and tubular branch stent portion
An endoprosthetic device including a tubular main body with at least one docking branch of adjustable length extending laterally from the tubular main body, wherein the at least one docking branch of the endoprosthetic device is mateable with the proximal stented portion of the tubular branch body to thereby form a vascular graft modular assembly.
Tubular branch body with proximal and distal stented portions linked by flexible portion
At least one tubular branch body including a proximal stented portion and a distal stented portion, a tubular branch body flexible portion linking the proximal stented portion and the distal stented portion, and a tubular branch body access branch extending laterally from the tubular branch body flexible portion.
Lateral access branch on the endoprosthetic device
At least one tubular body access branch extending laterally from the tubular main body of the endoprosthetic device.
Coverage centers on a sheath-based delivery system whose removal is driven by pulling a retrieval wire through a retrieval capsule with a press-fit retrieval pin, coupled with a modular vascular graft assembly formed by mating an adjustable-length laterally extending docking branch of an endoprosthetic device to a tubular branch body’s proximal stented portion. The tubular branch body includes proximal and distal stented portions linked by a flexible portion and a laterally extending access branch, while the endoprosthetic device also includes a laterally extending tubular body access branch.
Stated Advantages
Stated use includes repairing an aortic arch aneurysm via rapid perfusion/off-pump hybrid procedure and staged sequential deployment to reduce ischemia time.
Documented Applications
Repairing an aortic arch aneurysm using a rapid perfusion/off-pump hybrid procedure and staged sequential deployment to reduce ischemia time.
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