Modular graft assembly

Claim 2

An assembly for positioning a graft within a vasculature, which comprises: a) a guide wire having proximal and distal ends and a first attachment portions wherein the guide wire has a length between the ends sufficient to extend from an entry opening into the vasculature, past a treatment zone and out an exit opening from the vasculature; b) a graft having a central lumen extending to proximal and distal graft ends; and c) at least one string extending from each of the proximal and distal graft ends, wherein the at least one string extending from the distal graft end is connectable to the first attachment portion of the guide wire so that when the guide wire extends through the vasculature with the proximal end thereof extending out the entry opening and with the first attachment portion accessible from outside the vasculature adjacent to the entry opening, the at least one string extending from the distal graft end is connectable to the first attachment portion so that the guide wire is manipulatable to move the graft through the vasculature until the at least one string extending from the distal graft end and connected to the first attachment portion of the guide wire extends out the exit opening and the at least one string extending from the proximal graft end extends out the entry opening, and wherein the at least one string extending from the distal draft end is disconnectable from the first attachment portion of the guide wire to remove the guide wire from connection with the graft so that the graft is positionable to span the treatment zone by manipulation of the at least one string connected to each of the proximal and distal graft ends.

Claim 3

The assembly of claim 1 further including: (a) a catheter having proximal and distal ends and an expandable balloon provided at a distal portion of the catheter; and (b) an expandable stent mounted on the expandable balloon of the catheter, wherein the catheter is movable along the vasculature from either the entry opening or the exit opening to a position at least partially inside the lumen of the graft so that when the expandable balloon is expanded, the expandable stent secures the graft to an inner wall of the vasculature.

Claim 4

The assembly of claim 2 wherein the expandable catheter is manipulatable to secure the graft to the inner wall of the vasculature on either side of the treatment zone.

Claim 5

The assembly of claim 2 wherein the graft is initially provided in a radially reduced state until such time as the stent secures the graft to the inner wall of the vasculature.

Claim 6

The assembly of claim 1 wherein the graft has at least one second attachment portion provided at each of the proximal and distal ends thereof.

Claim 7

The assembly of claim 5 wherein at least one string is connectable to the second attachment portion at both the proximal and distal graft ends to provide at least one string extending from the proximal and distal graft ends.

Claim 8

The assembly of claim 5 wherein the second attachment portions provided at the proximal and distal graft ends are graft loops-and wherein the at least one string is connectable to the second attachment portion by moving the string through the loop and doubling the string back upon itself.

Claim 9

The assembly of claim 1 wherein when the guide wire extends through the vasculature with the proximal end thereof extending out the entry opening and with the first attachment portion accessible from outside the vasculature adjacent to the entry opening, the distal end of the guide wire extends out the exit opening from the vasculature.

Claim 10

The assembly of claim 1 further including a restraining device positioned on and about the craft as the graft is positionable to span the treatment zone.

Claim 11

The assembly of claim 9 wherein the restraining device is a cylindrically-shaped sheath introducer provided along and about the graft as the graft is positionable to span the treatment zone.

Claim 12

The assembly of claim 1 wherein the location of the graft in the vasculature is verifiable by an image amplifier.

Claim 13

The assembly of claim 1 further including a restraining device positioned on the at least one string extending from the distal end of the graft to the first attachment portion of the guide wire, wherein the restraining device is an end cap provided adjacent to the distal end of the graft.

Claim 14

The assembly of claim 12 wherein the end cap is cone shaped.

Claim 15

The assembly of claim 12 wherein the end cap is comprised of a cap ring.

Claim 16

The assembly of claim 1 wherein the graft further comprises a plurality of second attachment portions at both the proximal and distal graft ends to provide a plurality of strings extending from both the proximal and distal graft ends.

Claim 17

The assembly of claim 11 further comprising a catheter and a plunger movably positioned within a lumen of the catheter for securing the graft to the inner wall of the vasculature with the stent moved into position by the catheter.

Claim 18

The assembly of claim 1 further comprising an entry sheath for maintaining the patency of the entry opening and the exit opening.

Claim 19

The assembly of claim 1 wherein the guide wire is comprised of a middle portion, and the first attachment portion is comprised of a ring located at the middle portion of the guide wire.

Claim 20

The assembly of claim 1 wherein the first attachment portion is a ring positioned at the distal end of the guide wire.

Claim 21

The assembly of claim 1 wherein the guide wire is less than 0.38 millimeters in diameter.

Claim 22

The assembly of claim 5 wherein the second attachment portions provided at the proximal and distal graft ends are comprised of one or more graft loops.

Claim 23

An assembly for repairing an aneurysm within a vasculature, which comprises: a) a guide wire having proximal and distal ends and a first attachment portion, wherein the guide wire has a length between the ends sufficient to extend from an entry opening into the vasculature, past a treatment zone and out an exit opening from the vasculature; b) an engrafting device having a central lumen extending to proximal and distal ends thereof; and c) at least one string extending from each of the proximal and distal ends of the engrafting device, wherein the at least one string extending from the distal end of the engrafting device is connectable to the first attachment portion of the guide wire so that when the guide wire extends through the vasculature with the proximal end thereof extending out the entry opening and with the first attachment portion accessible from outside the vasculature adjacent to the entry opening, the at least one string extending from the distal end of the engrafting device is connectable to the first attachment portion so that the guide wire is manipulable to move the engrafting device through the vasculature until the at least one string extending from the distal end of the engrafting device and connected to the first attachment portion of the guide wire extends out the exit opening and the at least one string extending from the proximal end of the engrafting device extends out the entry opening, and wherein the at least one string extending from the distal end of the engrafting device is disconnectable from the first attachment portion of the guide wire to remove the guide wire from connection with the engrafting device so that the engrafting device is positionable to span the aneurysm by manipulation of the at least one sting connected to each of the proximal and distal ends of the engrafting device.

Claim 24

An assembly for repairing an aneurysm within a vasculature, which comprises: a) a guide wire having proximal and distal ends and a first attachment portion, wherein the guide wire has a length between the ends sufficient to extend from an entry opening into the vasculature, past a treatment zone and out an exit opening from the vasculature; b) an engrafting device having a central lumen extending to proximal and distal ends thereof; and c) at least one string extending from each of the proximal and distal ends of the engrafting device, wherein the at least one string extending from the distal end of the engrafting device is connectable to the first attachment portion of the guide wire so that when the guide wire extends through the vasculature with the proximal end thereof extending out the entry opening and with the first attachment portion accessible from outside the vasculature adjacent to the entry opening, the at least one string extending from the distal end of the engrafting device is connectable to the first attachment portion so that the guide wire is manipulable to move the engrafting device through the vasculature until the at least one string extending from the distal end of the engrafting device and connected to the first attachment portion of the guide wire extends out the exit opening and the at least one string extending from the proximal end of the engrafting device extends out the entry opening, and wherein the at least one string extending from the distal end of the engrafting device is disconnectable from the first attachment portion of the guide wire to remove the guide wire from connection with the engrafting device so that the engrafting device is positionable to span the aneurysm by manipulation of the at least one sting connected to each of the proximal and distal ends of the engrafting device.

Claim 25

An assembly for positioning a stent within a vasculature, which comprises: a) a guide wire having proximal and distal ends and a first attachment portion, wherein the guide wire has a length between the ends sufficient to extend from an entry opening into the vasculature, past a treatment zone and out an exit opening from the vasculature; b) a stent having a central lumen extending to proximal and distal ends thereof; and c) at least one string extending from each of the proximal and distal ends of the stent, wherein the at least one string extending from the distal end of the stent is connectable to the first attachment portion of the guide wire so that when the guide wire extends through the vasculature with the proximal end thereof extending out the entry opening and with the first attachment portion accessible from outside the vasculature adjacent to the entry opening, the at least one string extending from the distal end of the stent is connectable to the first attachment portion so that the guide wire is manipulable to move the stent through the vasculature until the at least one string extending from the distal end of the stent and connected to the first attachment portion of the guide wire extends out the exit opening and the at least one string extending from the proximal end of the stent extends out the entry opening, and wherein the at least one string extending from the distal end of the stent is disconnectable from the first attachment portion of the guide wire to remove the guide wire from connection with the stent so that the stent is positionable in the vasculature at a desired location by manipulation of the at least one string connected to each of the proximal and distal ends of the stent.

Claim 26

An assembly for positioning a stent within a vasculature, which comprises: a) a guide wire having proximal and distal ends and a first attachment portion, wherein the guide wire has a length between the ends sufficient to extend from an entry opening into the vasculature, past a treatment zone and out an exit opening from the vasculature; b) a stent having a central lumen extending to proximal and distal ends thereof; and c) at least one string extending from each of the proximal and distal ends of the stent, wherein the at least one string extending from the distal end of the stent is connectable to the first attachment portion of the guide wire so that when the guide wire extends through the vasculature with the proximal end thereof extending out the entry opening and with the first attachment portion accessible from outside the vasculature adjacent to the entry opening, the at least one string extending from the distal end of the stent is connectable to the first attachment portion so that the guide wire is manipulable to move the stent through the vasculature until the at least one string extending from the distal end of the stent and connected to the first attachment portion of the guide wire extends out the exit opening and the at least one string extending from the proximal end of the stent extends out the entry opening, and wherein the at least one string extending from the distal end of the stent is disconnectable from the first attachment portion of the guide wire to remove the guide wire from connection with the stent so that the stent is positionable in the vasculature at a desired location by manipulation of the at least one string connected to each of the proximal and distal ends of the stent.