Branched stent graft device and deployment

摘要

A device for treating disease along a main vessel and at least one branch vessel extending from the main vessel includes a branch member for deployment in the branch vessel, the branch member having a branch lumen; and a main body for deployment in the main vessel. The main body has a generally tubular wall extending generally longitudinally between opposite first and second ends. The wall has an internal surface defining a main lumen and an opposite outer surface. The wall has a recessed portion that is recessed relative to the outer surface of the wall and positioned between the first and second ends of the main body. The main body has an opening formed in the recessed portion of the wall for receiving the branch member therethrough such that the branch lumen is in fluid communication with the main lumen.

主权项

1. A method for deploying a device to a treatment site for treating disease along a main vessel and at least one branch vessel extending from the main vessel, said method comprising:
routing a main guidewire from the femoral artery and into the aortic arch; routing a first branch guidewire from the femoral artery and into the carotid artery; providing a main body of a device in a constrained state by a primary sleeve on a proximal end of a catheter, wherein the main body includes an internal surface defining a main lumen, a recessed portion and at least one opening parallel with the main lumen and including a support wall in the recessed portion, the recessed portion being recessed relative to an outer surface of the device and the support wall forms a secondary lumen extending along the internal surface of the device parallel with the main lumen; providing a removeable conduit extending through the main body and through the at least one opening in the recessed portion; inserting the main guidewire through the main body of the device and the first branch guidewire through the conduit while in the constrained state; advancing the constrained main body along the main and first branch guidewires toward the treatment site; partially deploying the main body so as to expose the recessed portion of the main body and generally aligning at least one opening in the recessed portion with the at least one branch vessel; providing a first branch member of the device in a constrained state on a proximal end of a first branch catheter; advancing the first branch member along the first branch guidewire through the at least one opening in the recessed portion and toward one of the branch vessels along the aortic arch.