Multi-lumen implantable device

A method for repairing an injured blood vessel or creating a vascular bypass via a multi-lumen implantable device, comprising:

• navigating a delivery apparatus through a blood vessel to a target location in the blood vessel, wherein the target location includes an injury or is a target location for a vascular bypass anastomosis, wherein the device is contained within a sheath of the delivery apparatus in a radially compressed state, wherein the device comprises a radially expandable frame covered with a non-porous liner, the radially expandable frame including a first end portion, a second end portion, and a central portion arranged between the first end portion and the second end portion, in an axial direction along a central longitudinal axis of the device, the central portion having a dimension in a radial direction that is smaller than a diameter of the first end portion and a diameter of the second end portion when the device is radially expanded;
• axially sliding the sheath relative to the device to uncover the device, thereby allowing the device to radially expand and seal the first end portion of the device against an upstream section of a wall of the blood vessel and seal the second end portion of the device against a downstream section of the wall of the blood vessel, wherein the target location is on an intermediate section of the wall of the blood vessel between the upstream section and the downstream section;
• flowing blood through a first lumen of the device that is defined by an inner surface of the non-porous liner covering the first end portion, the second end portion, and the central portion of the frame;
• forming an outer, bloodless void in the blood vessel, between the first end portion and the second end portion and between the intermediate section of the wall of the blood vessel and an outer surface of the non-porous liner covering the central portion of the frame;
• repairing the blood vessel or creating the vascular bypass anastomosis at the target location;
• advancing the sheath over the device to radially collapse the device within the sheath;
• and
• removing the delivery apparatus with the device radially collapsed within the sheath from the blood vessel.

A method for repairing an injured blood vessel or creating a vascular bypass via a multi-lumen implantable device, comprising:

• navigating a delivery apparatus through a blood vessel to a target location in the blood vessel, wherein the target location includes an injury or is a target location for a vascular bypass anastomosis, wherein the device is contained within a sheath of the delivery apparatus in a radially compressed state, wherein the device comprises a radially expandable frame covered with a non-porous liner, the radially expandable frame including a first end portion, a second end portion, and a central portion arranged between the first end portion and the second end portion, in an axial direction along a central longitudinal axis of the device, wherein in its radially expanded state, the first end portion and the second end portion have respective cylindrical sections and respective tapered sections that taper radially inward from their respective cylindrical sections to the central portion which has a smaller diameter than respective outermost ends of the cylindrical sections of the first and second end portions;
• axially sliding the sheath relative to the device to uncover the device, thereby allowing the device to radially expand and seal the first end portion of the device against a first section of a wall of the blood vessel, upstream of the target location, and seal the second end portion of the device against a second section of the wall of the blood vessel, downstream of the target location;
• flowing blood from upstream of the target location, through a first lumen of the device to downstream of the target location, wherein the lumen is defined by an inner surface of non-porous liner;
• blocking blood from flowing into a void region bounded by the first and second end portions, the non-porous liner covering the central portion and the tapered sections of the first and second end portions, and a third section of the wall of the blood vessel location between the first and second sections of the wall of the blood vessel, wherein the target location is located along the third section of the wall of the blood vessel;
• and
• repairing the blood vessel or creating the vascular bypass anastomosis at the target location while blood flows through the first lumen.